diff --git a/Aria/build.gradle b/Aria/build.gradle index 7b8287a2..3d928fe3 100644 --- a/Aria/build.gradle +++ b/Aria/build.gradle @@ -2,7 +2,7 @@ apply plugin: 'com.android.library' android { compileSdkVersion 23 - buildToolsVersion '25.0.2' + buildToolsVersion '25.0.3' defaultConfig { minSdkVersion 9 @@ -22,8 +22,7 @@ dependencies { compile fileTree(include: ['*.jar'], dir: 'libs') testCompile 'junit:junit:4.12' compile 'com.android.support:appcompat-v7:23.1.1' - compile project(':AriaCompiler') -// compile project(':AriaAnnotations') +// compile project(':AriaCompiler') + compile project(':AriaAnnotations') //gradle 打包时打开这个 } -//apply from: 'bintray-release.gradle' -//apply from: 'jcenter.gradle' +apply from: 'bintray-release.gradle' diff --git a/Aria/jcenter.gradle b/Aria/jcenter.gradle index efbb3ea1..8ce3129a 100644 --- a/Aria/jcenter.gradle +++ b/Aria/jcenter.gradle @@ -76,7 +76,7 @@ artifacts { //################################# jcenter 上传配置 start ######################################### bintray { // user = hasProperty("bintrayUser") ? getProperty("bintrayUser") : getProperty("BINTRAY_USER") -// key = hasProperty("bintrayKey") ? getProperty("bintrayKey") : getProperty("BINTRAY_KEY") +// groupName = hasProperty("bintrayKey") ? getProperty("bintrayKey") : getProperty("BINTRAY_KEY") user = BINTRAY_USER key = BINTRAY_KEY configurations = ['archives'] diff --git a/Aria/src/main/java/com/arialyy/aria/core/Aria.java b/Aria/src/main/java/com/arialyy/aria/core/Aria.java index 27e19d2e..5dc70cfe 100644 --- a/Aria/src/main/java/com/arialyy/aria/core/Aria.java +++ b/Aria/src/main/java/com/arialyy/aria/core/Aria.java @@ -59,62 +59,6 @@ import com.arialyy.aria.core.upload.UploadTask; * */ @TargetApi(Build.VERSION_CODES.ICE_CREAM_SANDWICH_MR1) public class Aria { - /** - * 不支持断点 - */ - public static final String ACTION_SUPPORT_BREAK_POINT = "ACTION_SUPPORT_BREAK_POINT"; - /** - * 预处理完成 - */ - public static final String ACTION_PRE = "ACTION_PRE"; - /** - * 下载开始前事件 - */ - public static final String ACTION_POST_PRE = "ACTION_POST_PRE"; - /** - * 开始下载事件 - */ - public static final String ACTION_START = "ACTION_START"; - /** - * 恢复下载事件 - */ - public static final String ACTION_RESUME = "ACTION_RESUME"; - /** - * 正在下载事件 - */ - public static final String ACTION_RUNNING = "ACTION_RUNNING"; - /** - * 停止下载事件 - */ - public static final String ACTION_STOP = "ACTION_STOP"; - /** - * 取消下载事件 - */ - public static final String ACTION_CANCEL = "ACTION_CANCEL"; - /** - * 下载完成事件 - */ - public static final String ACTION_COMPLETE = "ACTION_COMPLETE"; - /** - * 下载失败事件 - */ - public static final String ACTION_FAIL = "ACTION_FAIL"; - /** - * 下载实体 - */ - public static final String DOWNLOAD_ENTITY = "DOWNLOAD_ENTITY"; - /** - * 上传实体 - */ - public static final String UPLOAD_ENTITY = "UPLOAD_ENTITY"; - /** - * 位置 - */ - public static final String CURRENT_LOCATION = "CURRENT_LOCATION"; - /** - * 速度 - */ - public static final String CURRENT_SPEED = "CURRENT_SPEED"; private Aria() { } diff --git a/Aria/src/main/java/com/arialyy/aria/core/AriaManager.java b/Aria/src/main/java/com/arialyy/aria/core/AriaManager.java index dacb0aea..41bb1525 100644 --- a/Aria/src/main/java/com/arialyy/aria/core/AriaManager.java +++ b/Aria/src/main/java/com/arialyy/aria/core/AriaManager.java @@ -29,14 +29,13 @@ import android.text.TextUtils; import android.util.Log; import android.widget.PopupWindow; import com.arialyy.aria.core.download.DownloadReceiver; -import com.arialyy.aria.core.inf.ICmd; +import com.arialyy.aria.core.command.ICmd; import com.arialyy.aria.core.inf.IReceiver; import com.arialyy.aria.core.upload.UploadReceiver; import com.arialyy.aria.orm.DbUtil; import com.arialyy.aria.util.CommonUtil; import java.io.File; import java.io.IOException; -import java.io.InputStream; import java.util.ArrayList; import java.util.HashMap; import java.util.Iterator; @@ -86,6 +85,26 @@ import org.xml.sax.SAXException; return mReceivers; } + /** + * 设置上传任务的执行队列类型 + * + * @param mod {@link com.arialyy.aria.core.QueueMod} + */ + public AriaManager setUploadQueueMod(QueueMod mod) { + mUConfig.setQueueMod(mod.tag); + return this; + } + + /** + * 设置下载任务的执行队列类型 + * + * @param mod {@link com.arialyy.aria.core.QueueMod} + */ + public AriaManager setDownloadQueueMod(QueueMod mod) { + mDConfig.setQueueMod(mod.tag); + return this; + } + /** * 如果需要在代码中修改下载配置，请使用以下方法 * 
diff --git a/Aria/src/main/java/com/arialyy/aria/core/ConfigHelper.java b/Aria/src/main/java/com/arialyy/aria/core/ConfigHelper.java
index e4c94262..d0df8509 100644
--- a/Aria/src/main/java/com/arialyy/aria/core/ConfigHelper.java
+++ b/Aria/src/main/java/com/arialyy/aria/core/ConfigHelper.java
@@ -54,9 +54,6 @@ class ConfigHelper extends DefaultHandler {
         case "threadNum":
           loadThreadNum(value);
           break;
-        case "openBroadcast":
-          loadBroadcast(value);
-          break;
         case "maxTaskNum":
           loadMaxQueue(value);
           break;
@@ -86,16 +83,33 @@ class ConfigHelper extends DefaultHandler {
         case "maxSpeed":
           loadMaxSpeed(value);
           break;
+        case "queueMod":
+          loadQueueMod(value);
+          break;
       }
     }
   }
 
+  private void loadQueueMod(String value) {
+    String mod = "now";
+    if (!TextUtils.isEmpty(value) && (value.equalsIgnoreCase("now") || value.equalsIgnoreCase(
+        "wait"))) {
+      mod = value;
+    }
+    if (isDownloadConfig) {
+      mDownloadConfig.queueMod = mod;
+    }
+    if (isUploadConfig) {
+      mUploadConfig.queueMod = mod;
+    }
+  }
+
   private void loadMaxSpeed(String value) {
     double maxSpeed = 0.0;
     if (!TextUtils.isEmpty(value)) {
       maxSpeed = Double.parseDouble(value);
     }
-    if (isDownloadConfig){
+    if (isDownloadConfig) {
       mDownloadConfig.msxSpeed = maxSpeed;
     }
   }
@@ -207,16 +221,6 @@ class ConfigHelper extends DefaultHandler {
     }
   }
 
-  private void loadBroadcast(String value) {
-    boolean open = Boolean.parseBoolean(value);
-    if (isDownloadConfig) {
-      mDownloadConfig.isOpenBreadCast = open;
-    }
-    if (isUploadConfig) {
-      mUploadConfig.isOpenBreadCast = open;
-    }
-  }
-
   private void loadThreadNum(String value) {
     int num = 3;
     if (!TextUtils.isEmpty(value)) {
diff --git a/Aria/src/main/java/com/arialyy/aria/core/QueueMod.java b/Aria/src/main/java/com/arialyy/aria/core/QueueMod.java
new file mode 100644
index 00000000..db9e7b6c
--- /dev/null
+++ b/Aria/src/main/java/com/arialyy/aria/core/QueueMod.java
@@ -0,0 +1,31 @@
+package com.arialyy.aria.core;
+
+/**
+ * Created by Aria.Lao on 2017/6/21.
+ * 执行队列类型
+ */
+public enum QueueMod {
+  /**
+   * 等待模式，
+   * 如果执行队列已经满了，再对其它任务（TASK_A）使用start命令执行任务时
+   * 1、TASK_A添加到缓存队列中，当执行队列中的任务完成时，系统会将自动执行缓存队列中的TASK_A
+   * 2、如果再次对TASK_A使用start命令，TASK_A将会立刻执行
+   */
+  WAIT("wait"),
+
+  /**
+   * 立刻执行模式
+   * 如果执行队列已经满了，再次使用start命令执行任务时，该任务会添加到执行队列队尾，而原来执行队列的队首任务会停止
+   */
+  NOW("now");
+
+  String tag;
+
+  public String getTag() {
+    return tag;
+  }
+
+  QueueMod(String tag) {
+    this.tag = tag;
+  }
+}
diff --git a/Aria/src/main/java/com/arialyy/aria/core/command/AbsCmd.java b/Aria/src/main/java/com/arialyy/aria/core/command/AbsCmd.java
index 1107dbfd..d337a453 100644
--- a/Aria/src/main/java/com/arialyy/aria/core/command/AbsCmd.java
+++ b/Aria/src/main/java/com/arialyy/aria/core/command/AbsCmd.java
@@ -16,43 +16,20 @@
 
 package com.arialyy.aria.core.command;
 
-import com.arialyy.aria.core.download.DownloadTaskEntity;
 import com.arialyy.aria.core.inf.AbsTaskEntity;
-import com.arialyy.aria.core.queue.DownloadTaskQueue;
 import com.arialyy.aria.core.queue.ITaskQueue;
-import com.arialyy.aria.core.inf.ICmd;
-import com.arialyy.aria.core.queue.UploadTaskQueue;
-import com.arialyy.aria.core.upload.UploadTaskEntity;
-import com.arialyy.aria.util.CheckUtil;
-import com.arialyy.aria.util.CommonUtil;
 
 /**
- * Created by lyy on 2016/8/22.
- * 下载命令
+ * Created by AriaL on 2017/6/29.
  */
-public abstract class AbsCmd implements ICmd {
-  ITaskQueue mQueue;
-  T mEntity;
-  String TAG;
-  String mTargetName;
+public abstract class AbsCmd implements ICmd{
+  protected ITaskQueue mQueue;
+  protected T mTaskEntity;
+  protected String TAG;
+  protected String mTargetName;
   /**
-   * 能否执行命令
+   * 是否是下载任务的命令
+   * {@code true} 下载任务的命令，{@code false} 上传任务的命令
    */
-  boolean canExeCmd = true;
-
-  /**
-   * @param targetName 产生任务的对象名
-   */
-  AbsCmd(String targetName, T entity) {
-    canExeCmd = CheckUtil.checkCmdEntity(entity,
-        !(this instanceof CancelCmd) || !(this instanceof StopCmd));
-    mTargetName = targetName;
-    mEntity = entity;
-    TAG = CommonUtil.getClassName(this);
-    if (entity instanceof DownloadTaskEntity) {
-      mQueue = DownloadTaskQueue.getInstance();
-    } else if (entity instanceof UploadTaskEntity) {
-      mQueue = UploadTaskQueue.getInstance();
-    }
-  }
-}
\ No newline at end of file
+  protected boolean isDownloadCmd = true;
+}
diff --git a/Aria/src/main/java/com/arialyy/aria/core/command/AbsCmdFactory.java b/Aria/src/main/java/com/arialyy/aria/core/command/AbsCmdFactory.java
new file mode 100644
index 00000000..8ed0d498
--- /dev/null
+++ b/Aria/src/main/java/com/arialyy/aria/core/command/AbsCmdFactory.java
@@ -0,0 +1,31 @@
+/*
+ * Copyright (C) 2016 AriaLyy(https://github.com/AriaLyy/Aria)
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package com.arialyy.aria.core.command;
+
+import com.arialyy.aria.core.inf.AbsTaskEntity;
+
+/**
+ * Created by AriaL on 2017/6/29.
+ * 抽象命令工厂
+ */
+public abstract class AbsCmdFactory {
+
+  /**
+   * @param target 创建任务的对象
+   * @param entity 下载实体
+   */
+  public abstract  CMD createCmd(String target, T entity, int type);
+}
diff --git a/Aria/src/main/java/com/arialyy/aria/core/inf/ICmd.java b/Aria/src/main/java/com/arialyy/aria/core/command/ICmd.java
similarity index 90%
rename from Aria/src/main/java/com/arialyy/aria/core/inf/ICmd.java
rename to Aria/src/main/java/com/arialyy/aria/core/command/ICmd.java
index 482cfb0c..dc938037 100644
--- a/Aria/src/main/java/com/arialyy/aria/core/inf/ICmd.java
+++ b/Aria/src/main/java/com/arialyy/aria/core/command/ICmd.java
@@ -13,7 +13,7 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package com.arialyy.aria.core.inf;
+package com.arialyy.aria.core.command;
 
 /**
  * Created by lyy on 2017/2/9.
@@ -23,5 +23,5 @@ public interface ICmd {
   /**
    * 执行命令
    */
-  public abstract void executeCmd();
+  void executeCmd();
 }
diff --git a/Aria/src/main/java/com/arialyy/aria/core/command/group/AbsGroupCmd.java b/Aria/src/main/java/com/arialyy/aria/core/command/group/AbsGroupCmd.java
new file mode 100644
index 00000000..5d24fa67
--- /dev/null
+++ b/Aria/src/main/java/com/arialyy/aria/core/command/group/AbsGroupCmd.java
@@ -0,0 +1,46 @@
+/*
+ * Copyright (C) 2016 AriaLyy(https://github.com/AriaLyy/Aria)
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package com.arialyy.aria.core.command.group;
+
+import com.arialyy.aria.core.command.AbsCmd;
+import com.arialyy.aria.core.download.DownloadGroupTaskEntity;
+import com.arialyy.aria.core.download.DownloadTaskEntity;
+import com.arialyy.aria.core.inf.AbsTaskEntity;
+import com.arialyy.aria.core.queue.DownloadGroupTaskQueue;
+import com.arialyy.aria.core.queue.DownloadTaskQueue;
+import com.arialyy.aria.core.queue.UploadTaskQueue;
+import com.arialyy.aria.core.upload.UploadTaskEntity;
+import com.arialyy.aria.util.CommonUtil;
+
+/**
+ * Created by AriaL on 2017/6/29.
+ * 任务组命令
+ */
+abstract class AbsGroupCmd extends AbsCmd {
+
+  /**
+   * @param targetName 创建任务的对象名
+   */
+  AbsGroupCmd(String targetName, T entity) {
+    mTargetName = targetName;
+    mTaskEntity = entity;
+    TAG = CommonUtil.getClassName(this);
+    if (entity instanceof DownloadGroupTaskEntity) {
+      mQueue = DownloadGroupTaskQueue.getInstance();
+      isDownloadCmd = true;
+    }
+  }
+}
diff --git a/Aria/src/main/java/com/arialyy/aria/core/command/StartCmd.java b/Aria/src/main/java/com/arialyy/aria/core/command/group/GroupCancelCmd.java
similarity index 56%
rename from Aria/src/main/java/com/arialyy/aria/core/command/StartCmd.java
rename to Aria/src/main/java/com/arialyy/aria/core/command/group/GroupCancelCmd.java
index 82821ea8..5b6e5cf9 100644
--- a/Aria/src/main/java/com/arialyy/aria/core/command/StartCmd.java
+++ b/Aria/src/main/java/com/arialyy/aria/core/command/group/GroupCancelCmd.java
@@ -13,34 +13,23 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
+package com.arialyy.aria.core.command.group;
 
-package com.arialyy.aria.core.command;
-
-import android.text.TextUtils;
-import com.arialyy.aria.core.inf.ITask;
 import com.arialyy.aria.core.inf.AbsTaskEntity;
 
 /**
- * Created by lyy on 2016/8/22.
- * 开始命令
+ * Created by AriaL on 2017/6/29.
+ * 删除任务组
  */
-class StartCmd extends AbsCmd {
-
-  StartCmd(String targetName, T entity) {
+class GroupCancelCmd extends AbsGroupCmd {
+  /**
+   * @param targetName 创建任务的对象名
+   */
+  GroupCancelCmd(String targetName, T entity) {
     super(targetName, entity);
   }
 
   @Override public void executeCmd() {
-    if (!canExeCmd) return;
-    ITask task = mQueue.getTask(mEntity.getEntity());
-    if (task == null) {
-      task = mQueue.createTask(mTargetName, mEntity);
-    }
-    if (task != null) {
-      if (!TextUtils.isEmpty(mTargetName)) {
-        task.setTargetName(mTargetName);
-      }
-      mQueue.startTask(task);
-    }
+
   }
-}
\ No newline at end of file
+}
diff --git a/Aria/src/main/java/com/arialyy/aria/core/command/group/GroupCmdFactory.java b/Aria/src/main/java/com/arialyy/aria/core/command/group/GroupCmdFactory.java
new file mode 100644
index 00000000..a818d688
--- /dev/null
+++ b/Aria/src/main/java/com/arialyy/aria/core/command/group/GroupCmdFactory.java
@@ -0,0 +1,71 @@
+/*
+ * Copyright (C) 2016 AriaLyy(https://github.com/AriaLyy/Aria)
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package com.arialyy.aria.core.command.group;
+
+import com.arialyy.aria.core.AriaManager;
+import com.arialyy.aria.core.command.AbsCmdFactory;
+import com.arialyy.aria.core.inf.AbsTaskEntity;
+
+/**
+ * Created by AriaL on 2017/6/29.
+ */
+class GroupCmdFactory extends AbsCmdFactory {
+  /**
+   * 启动任务
+   */
+  public static final int TASK_START = 0xa1;
+  /**
+   * 停止任务
+   */
+  public static final int TASK_STOP = 0xa2;
+  /**
+   * 取消任务
+   */
+  public static final int TASK_CANCEL = 0xa3;
+
+  private static volatile GroupCmdFactory INSTANCE = null;
+
+  private GroupCmdFactory() {
+
+  }
+
+  public static GroupCmdFactory getInstance() {
+    if (INSTANCE == null) {
+      synchronized (AriaManager.LOCK) {
+        INSTANCE = new GroupCmdFactory();
+      }
+    }
+    return INSTANCE;
+  }
+
+  /**
+   * @param target 创建任务的对象
+   * @param entity 下载实体
+   * @param type 命令类型{@link #TASK_START}、{@link #TASK_CANCEL}、{@link #TASK_STOP}
+   */
+  public  AbsGroupCmd createCmd(String target, T entity, int type) {
+    switch (type) {
+      case TASK_START:
+        return new GroupStartCmd<>(target, entity);
+      case TASK_STOP:
+        return new GroupStopCmd<>(target, entity);
+      case TASK_CANCEL:
+        return new GroupCancelCmd<>(target, entity);
+      default:
+        return null;
+    }
+  }
+}
diff --git a/Aria/src/main/java/com/arialyy/aria/core/command/group/GroupStartCmd.java b/Aria/src/main/java/com/arialyy/aria/core/command/group/GroupStartCmd.java
new file mode 100644
index 00000000..4fde6115
--- /dev/null
+++ b/Aria/src/main/java/com/arialyy/aria/core/command/group/GroupStartCmd.java
@@ -0,0 +1,72 @@
+/*
+ * Copyright (C) 2016 AriaLyy(https://github.com/AriaLyy/Aria)
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package com.arialyy.aria.core.command.group;
+
+import android.text.TextUtils;
+import com.arialyy.aria.core.AriaManager;
+import com.arialyy.aria.core.QueueMod;
+import com.arialyy.aria.core.inf.AbsGroupTask;
+import com.arialyy.aria.core.inf.AbsTaskEntity;
+import com.arialyy.aria.core.inf.IEntity;
+
+/**
+ * Created by AriaL on 2017/6/29.
+ * 任务组开始命令，该命令负责开始下载或恢复下载的操作
+ */
+class GroupStartCmd extends AbsGroupCmd {
+  /**
+   * @param targetName 创建任务的对象名
+   */
+  GroupStartCmd(String targetName, T entity) {
+    super(targetName, entity);
+  }
+
+  @Override public void executeCmd() {
+    String mod;
+    int maxTaskNum;
+    AriaManager manager = AriaManager.getInstance(AriaManager.APP);
+    if (isDownloadCmd) {
+      mod = manager.getDownloadConfig().getQueueMod();
+      maxTaskNum = manager.getDownloadConfig().getMaxTaskNum();
+    } else {
+      mod = manager.getUploadConfig().getQueueMod();
+      maxTaskNum = manager.getUploadConfig().getMaxTaskNum();
+    }
+
+    AbsGroupTask task = (AbsGroupTask) mQueue.getTask(mTaskEntity.getEntity());
+    if (task == null) {
+      task = (AbsGroupTask) mQueue.createTask(mTargetName, mTaskEntity);
+      if (!TextUtils.isEmpty(mTargetName)) {
+        task.setTargetName(mTargetName);
+      }
+      // 任务不存在时，根据配置不同，对任务执行操作
+      if (mod.equals(QueueMod.NOW.getTag())) {
+        mQueue.startTask(task);
+      } else if (mod.equals(QueueMod.WAIT.getTag())) {
+        if (mQueue.getCurrentExePoolNum() < maxTaskNum) {
+          mQueue.startTask(task);
+        }
+      }
+    } else {
+      // 任务不存在时，根据配置不同，对任务执行操作
+      if (!task.isRunning()
+          && mod.equals(QueueMod.WAIT.getTag())
+          && task.getState() == IEntity.STATE_WAIT) {
+        mQueue.startTask(task);
+      }
+    }
+  }
+}
diff --git a/Aria/src/main/java/com/arialyy/aria/core/command/group/GroupStopCmd.java b/Aria/src/main/java/com/arialyy/aria/core/command/group/GroupStopCmd.java
new file mode 100644
index 00000000..85c400bd
--- /dev/null
+++ b/Aria/src/main/java/com/arialyy/aria/core/command/group/GroupStopCmd.java
@@ -0,0 +1,35 @@
+/*
+ * Copyright (C) 2016 AriaLyy(https://github.com/AriaLyy/Aria)
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package com.arialyy.aria.core.command.group;
+
+import com.arialyy.aria.core.inf.AbsTaskEntity;
+
+/**
+ * Created by AriaL on 2017/6/29.
+ * 停止任务组的命令
+ */
+class GroupStopCmd extends AbsGroupCmd{
+  /**
+   * @param targetName 创建任务的对象名
+   */
+  GroupStopCmd(String targetName, T entity) {
+    super(targetName, entity);
+  }
+
+  @Override public void executeCmd() {
+
+  }
+}
diff --git a/Aria/src/main/java/com/arialyy/aria/core/command/normal/AbsNormalCmd.java b/Aria/src/main/java/com/arialyy/aria/core/command/normal/AbsNormalCmd.java
new file mode 100644
index 00000000..675a918a
--- /dev/null
+++ b/Aria/src/main/java/com/arialyy/aria/core/command/normal/AbsNormalCmd.java
@@ -0,0 +1,61 @@
+/*
+ * Copyright (C) 2016 AriaLyy(https://github.com/AriaLyy/Aria)
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.arialyy.aria.core.command.normal;
+
+import com.arialyy.aria.core.command.AbsCmd;
+import com.arialyy.aria.core.download.DownloadGroupTaskEntity;
+import com.arialyy.aria.core.download.DownloadTaskEntity;
+import com.arialyy.aria.core.inf.AbsTaskEntity;
+import com.arialyy.aria.core.queue.DownloadGroupTaskQueue;
+import com.arialyy.aria.core.queue.DownloadTaskQueue;
+import com.arialyy.aria.core.queue.UploadTaskQueue;
+import com.arialyy.aria.core.upload.UploadTaskEntity;
+import com.arialyy.aria.util.CheckUtil;
+import com.arialyy.aria.util.CommonUtil;
+
+/**
+ * Created by lyy on 2016/8/22.
+ * 下载命令
+ */
+public abstract class AbsNormalCmd extends AbsCmd {
+
+  /**
+   * 能否执行命令
+   */
+  boolean canExeCmd = true;
+
+  /**
+   * @param targetName 产生任务的对象名
+   */
+  AbsNormalCmd(String targetName, T entity) {
+    //canExeCmd = CheckUtil.checkCmdEntity(entity,
+    //    !(this instanceof CancelCmd) || !(this instanceof StopCmd));
+    mTargetName = targetName;
+    mTaskEntity = entity;
+    TAG = CommonUtil.getClassName(this);
+    if (entity instanceof DownloadTaskEntity) {
+      mQueue = DownloadTaskQueue.getInstance();
+      isDownloadCmd = true;
+    } else if (entity instanceof UploadTaskEntity) {
+      mQueue = UploadTaskQueue.getInstance();
+      isDownloadCmd = false;
+    } else if (entity instanceof DownloadGroupTaskEntity) {
+      mQueue = DownloadGroupTaskQueue.getInstance();
+      isDownloadCmd = true;
+    }
+  }
+}
\ No newline at end of file
diff --git a/Aria/src/main/java/com/arialyy/aria/core/command/AddCmd.java b/Aria/src/main/java/com/arialyy/aria/core/command/normal/AddCmd.java
similarity index 76%
rename from Aria/src/main/java/com/arialyy/aria/core/command/AddCmd.java
rename to Aria/src/main/java/com/arialyy/aria/core/command/normal/AddCmd.java
index fe6d481b..e848813b 100644
--- a/Aria/src/main/java/com/arialyy/aria/core/command/AddCmd.java
+++ b/Aria/src/main/java/com/arialyy/aria/core/command/normal/AddCmd.java
@@ -14,18 +14,18 @@
  * limitations under the License.
  */
 
-package com.arialyy.aria.core.command;
+package com.arialyy.aria.core.command.normal;
 
 import android.util.Log;
+import com.arialyy.aria.core.inf.AbsTask;
 import com.arialyy.aria.core.inf.IEntity;
-import com.arialyy.aria.core.inf.ITask;
 import com.arialyy.aria.core.inf.AbsTaskEntity;
 
 /**
  * Created by lyy on 2016/8/22.
  * 添加任务的命令
  */
-class AddCmd extends AbsCmd {
+class AddCmd extends AbsNormalCmd {
 
   AddCmd(String targetName, T entity) {
     super(targetName, entity);
@@ -33,10 +33,10 @@ class AddCmd extends AbsCmd {
 
   @Override public void executeCmd() {
     if (!canExeCmd) return;
-    ITask task = mQueue.getTask(mEntity.getEntity());
+    AbsTask task = mQueue.getTask(mTaskEntity.getEntity());
     if (task == null) {
-      mEntity.getEntity().setState(IEntity.STATE_WAIT);
-      mQueue.createTask(mTargetName, mEntity);
+      mTaskEntity.getEntity().setState(IEntity.STATE_WAIT);
+      mQueue.createTask(mTargetName, mTaskEntity);
     } else {
       Log.w(TAG, "添加命令执行失败，【该任务已经存在】");
     }
diff --git a/Aria/src/main/java/com/arialyy/aria/core/command/normal/CancelAllCmd.java b/Aria/src/main/java/com/arialyy/aria/core/command/normal/CancelAllCmd.java
new file mode 100644
index 00000000..375b2ffd
--- /dev/null
+++ b/Aria/src/main/java/com/arialyy/aria/core/command/normal/CancelAllCmd.java
@@ -0,0 +1,67 @@
+/*
+ * Copyright (C) 2016 AriaLyy(https://github.com/AriaLyy/Aria)
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.arialyy.aria.core.command.normal;
+
+import com.arialyy.aria.core.download.DownloadGroupEntity;
+import com.arialyy.aria.core.download.DownloadTaskEntity;
+import com.arialyy.aria.core.inf.AbsTaskEntity;
+import com.arialyy.aria.core.upload.UploadTaskEntity;
+import com.arialyy.aria.orm.DbEntity;
+import com.arialyy.aria.util.CommonUtil;
+import java.util.List;
+
+/**
+ * Created by AriaL on 2017/6/27.
+ * 删除所有任务，并且删除所有回掉
+ */
+final class CancelAllCmd extends AbsNormalCmd {
+  /**
+   * @param targetName 产生任务的对象名
+   */
+  CancelAllCmd(String targetName, T entity) {
+    super(targetName, entity);
+  }
+
+  @Override public void executeCmd() {
+    mQueue.removeAllTask();
+    if (mTaskEntity instanceof DownloadTaskEntity) {
+      handleDownloadRemove();
+    } else {
+      handleUploadRemove();
+    }
+  }
+
+  /**
+   * 处理上传的删除
+   */
+  private void handleUploadRemove() {
+    List allEntity = DbEntity.findAllData(UploadTaskEntity.class);
+    for (UploadTaskEntity entity : allEntity) {
+      CommonUtil.delUploadTaskConfig(mTaskEntity.removeFile, entity);
+    }
+  }
+
+  /**
+   * 处理下载的删除
+   */
+  private void handleDownloadRemove() {
+    List allEntity = DbEntity.findAllData(DownloadTaskEntity.class);
+    for (DownloadTaskEntity entity : allEntity) {
+      CommonUtil.delDownloadTaskConfig(mTaskEntity.removeFile, entity);
+    }
+  }
+}
diff --git a/Aria/src/main/java/com/arialyy/aria/core/command/CancelCmd.java b/Aria/src/main/java/com/arialyy/aria/core/command/normal/CancelCmd.java
similarity index 75%
rename from Aria/src/main/java/com/arialyy/aria/core/command/CancelCmd.java
rename to Aria/src/main/java/com/arialyy/aria/core/command/normal/CancelCmd.java
index ad2aecd8..ff859066 100644
--- a/Aria/src/main/java/com/arialyy/aria/core/command/CancelCmd.java
+++ b/Aria/src/main/java/com/arialyy/aria/core/command/normal/CancelCmd.java
@@ -14,32 +14,33 @@
  * limitations under the License.
  */
 
-package com.arialyy.aria.core.command;
+package com.arialyy.aria.core.command.normal;
 
 import android.text.TextUtils;
-import com.arialyy.aria.core.inf.ITask;
+import com.arialyy.aria.core.inf.AbsNormalTask;
+import com.arialyy.aria.core.inf.AbsTask;
 import com.arialyy.aria.core.inf.AbsTaskEntity;
 
 /**
  * Created by lyy on 2016/9/20.
  * 取消命令
  */
-class CancelCmd extends AbsCmd {
+class CancelCmd extends AbsNormalCmd {
   CancelCmd(String targetName, T entity) {
     super(targetName, entity);
   }
 
   @Override public void executeCmd() {
     if (!canExeCmd) return;
-    ITask task = mQueue.getTask(mEntity.getEntity());
+    AbsTask task = mQueue.getTask(mTaskEntity.getEntity());
     if (task == null) {
-      task = mQueue.createTask(mTargetName, mEntity);
+      task = mQueue.createTask(mTargetName, mTaskEntity);
     }
     if (task != null) {
       if (!TextUtils.isEmpty(mTargetName)) {
         task.setTargetName(mTargetName);
       }
-      mQueue.cancelTask(task);
+      mQueue.removeTask(task);
     }
   }
 }
\ No newline at end of file
diff --git a/Aria/src/main/java/com/arialyy/aria/core/command/HighestPriorityCmd.java b/Aria/src/main/java/com/arialyy/aria/core/command/normal/HighestPriorityCmd.java
similarity index 78%
rename from Aria/src/main/java/com/arialyy/aria/core/command/HighestPriorityCmd.java
rename to Aria/src/main/java/com/arialyy/aria/core/command/normal/HighestPriorityCmd.java
index 74999611..e0efa2f7 100644
--- a/Aria/src/main/java/com/arialyy/aria/core/command/HighestPriorityCmd.java
+++ b/Aria/src/main/java/com/arialyy/aria/core/command/normal/HighestPriorityCmd.java
@@ -13,11 +13,13 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package com.arialyy.aria.core.command;
+package com.arialyy.aria.core.command.normal;
 
 import android.text.TextUtils;
-import com.arialyy.aria.core.inf.ITask;
+import com.arialyy.aria.core.download.DownloadTask;
+import com.arialyy.aria.core.inf.AbsNormalTask;
 import com.arialyy.aria.core.inf.AbsTaskEntity;
+import com.arialyy.aria.core.queue.DownloadTaskQueue;
 
 /**
  * Created by lyy on 2017/6/2.
@@ -28,8 +30,10 @@ import com.arialyy.aria.core.inf.AbsTaskEntity;
  * 4、用户手动暂停或任务完成后，第二次重新执行该任务，该命令将失效
  * 5、如果下载队列中已经满了，则会停止队尾的任务，当高优先级任务完成后，该队尾任务将自动执行
  * 6、把任务设置为最高优先级任务后，将自动执行任务，不需要重新调用start()启动任务
+ *
+ * 目前只只支持单下载任务的最高优先级任务
  */
-final class HighestPriorityCmd extends AbsCmd {
+final class HighestPriorityCmd extends AbsNormalCmd {
   /**
    * @param targetName 产生任务的对象名
    */
@@ -39,15 +43,15 @@ final class HighestPriorityCmd extends AbsCmd {
 
   @Override public void executeCmd() {
     if (!canExeCmd) return;
-    ITask task = mQueue.getTask(mEntity.getEntity());
+    DownloadTask task = (DownloadTask) mQueue.getTask(mTaskEntity.getEntity());
     if (task == null) {
-      task = mQueue.createTask(mTargetName, mEntity);
+      task = (DownloadTask) mQueue.createTask(mTargetName, mTaskEntity);
     }
     if (task != null) {
       if (!TextUtils.isEmpty(mTargetName)) {
         task.setTargetName(mTargetName);
       }
-      mQueue.setTaskHighestPriority(task);
+      ((DownloadTaskQueue) mQueue).setTaskHighestPriority(task);
     }
   }
 }
diff --git a/Aria/src/main/java/com/arialyy/aria/core/command/CmdFactory.java b/Aria/src/main/java/com/arialyy/aria/core/command/normal/NormalCmdFactory.java
similarity index 80%
rename from Aria/src/main/java/com/arialyy/aria/core/command/CmdFactory.java
rename to Aria/src/main/java/com/arialyy/aria/core/command/normal/NormalCmdFactory.java
index ae725b51..85aa33fc 100644
--- a/Aria/src/main/java/com/arialyy/aria/core/command/CmdFactory.java
+++ b/Aria/src/main/java/com/arialyy/aria/core/command/normal/NormalCmdFactory.java
@@ -14,16 +14,17 @@
  * limitations under the License.
  */
 
-package com.arialyy.aria.core.command;
+package com.arialyy.aria.core.command.normal;
 
 import com.arialyy.aria.core.AriaManager;
+import com.arialyy.aria.core.command.AbsCmdFactory;
 import com.arialyy.aria.core.inf.AbsTaskEntity;
 
 /**
  * Created by Lyy on 2016/9/23.
  * 命令工厂
  */
-public class CmdFactory {
+public class NormalCmdFactory extends AbsCmdFactory {
   /**
    * 创建任务
    */
@@ -56,17 +57,20 @@ public class CmdFactory {
    * 恢复所有停止的任务
    */
   public static final int TASK_RESUME_ALL = 0x130;
+  /**
+   * 删除所有任务，
+   */
+  public static final int TASK_CANCEL_ALL = 0x131;
+  private static volatile NormalCmdFactory INSTANCE = null;
 
-  private static volatile CmdFactory INSTANCE = null;
-
-  private CmdFactory() {
+  private NormalCmdFactory() {
 
   }
 
-  public static CmdFactory getInstance() {
+  public static NormalCmdFactory getInstance() {
     if (INSTANCE == null) {
       synchronized (AriaManager.LOCK) {
-        INSTANCE = new CmdFactory();
+        INSTANCE = new NormalCmdFactory();
       }
     }
     return INSTANCE;
@@ -78,7 +82,7 @@ public class CmdFactory {
    * @param type 命令类型{@link #TASK_CREATE}、{@link #TASK_START}、{@link #TASK_CANCEL}、{@link
    * #TASK_STOP}、{@link #TASK_HIGHEST_PRIORITY}、{@link #TASK_STOP_ALL}、{@link #TASK_RESUME_ALL}
    */
-  public  AbsCmd createCmd(String target, T entity, int type) {
+  public  AbsNormalCmd createCmd(String target, T entity, int type) {
     switch (type) {
       case TASK_CREATE:
         return new AddCmd<>(target, entity);
@@ -95,6 +99,8 @@ public class CmdFactory {
         return new StopAllCmd<>(target, entity);
       case TASK_RESUME_ALL:
         return new ResumeAllCmd<>(target, entity);
+      case TASK_CANCEL_ALL:
+        return new CancelAllCmd<>(target, entity);
       default:
         return null;
     }
diff --git a/Aria/src/main/java/com/arialyy/aria/core/command/ResumeAllCmd.java b/Aria/src/main/java/com/arialyy/aria/core/command/normal/ResumeAllCmd.java
similarity index 73%
rename from Aria/src/main/java/com/arialyy/aria/core/command/ResumeAllCmd.java
rename to Aria/src/main/java/com/arialyy/aria/core/command/normal/ResumeAllCmd.java
index c7110077..1233ebe1 100644
--- a/Aria/src/main/java/com/arialyy/aria/core/command/ResumeAllCmd.java
+++ b/Aria/src/main/java/com/arialyy/aria/core/command/normal/ResumeAllCmd.java
@@ -1,11 +1,11 @@
-package com.arialyy.aria.core.command;
+package com.arialyy.aria.core.command.normal;
 
 import android.util.Log;
 import com.arialyy.aria.core.download.DownloadEntity;
 import com.arialyy.aria.core.download.DownloadTaskEntity;
+import com.arialyy.aria.core.inf.AbsTask;
 import com.arialyy.aria.core.inf.AbsTaskEntity;
 import com.arialyy.aria.core.inf.IEntity;
-import com.arialyy.aria.core.inf.ITask;
 import com.arialyy.aria.orm.DbEntity;
 import java.util.List;
 
@@ -15,7 +15,7 @@ import java.util.List;
  * 1.如果执行队列没有满，则开始下载任务，直到执行队列满
  * 2.如果队列执行队列已经满了，则将所有任务添加到等待队列中
  */
-final class ResumeAllCmd extends AbsCmd {
+final class ResumeAllCmd extends AbsNormalCmd {
   /**
    * @param targetName 产生任务的对象名
    */
@@ -27,9 +27,9 @@ final class ResumeAllCmd extends AbsCmd {
     List allEntity =
         DbEntity.findDatas(DownloadEntity.class, "state=?", IEntity.STATE_STOP + "");
     for (DownloadEntity entity : allEntity) {
-      int exeNum = mQueue.getExeTaskNum();
+      int exeNum = mQueue.getCurrentExePoolNum();
       if (exeNum == 0 || exeNum < mQueue.getMaxTaskNum()) {
-        ITask task = createTask(entity);
+        AbsTask task = createTask(entity);
         mQueue.startTask(task);
       } else {
         entity.setState(IEntity.STATE_WAIT);
@@ -38,10 +38,11 @@ final class ResumeAllCmd extends AbsCmd {
     }
   }
 
-  private ITask createTask(DownloadEntity entity) {
-    ITask task = mQueue.getTask(entity);
+  private AbsTask createTask(DownloadEntity entity) {
+    AbsTask task = mQueue.getTask(entity);
     if (task == null) {
-      DownloadTaskEntity taskEntity = new DownloadTaskEntity(entity);
+      DownloadTaskEntity taskEntity = new DownloadTaskEntity();
+      taskEntity.entity = entity;
       task = mQueue.createTask(mTargetName, taskEntity);
     } else {
       Log.w(TAG, "添加命令执行失败，【该任务已经存在】");
diff --git a/Aria/src/main/java/com/arialyy/aria/core/command/normal/StartCmd.java b/Aria/src/main/java/com/arialyy/aria/core/command/normal/StartCmd.java
new file mode 100644
index 00000000..7da4a5ca
--- /dev/null
+++ b/Aria/src/main/java/com/arialyy/aria/core/command/normal/StartCmd.java
@@ -0,0 +1,79 @@
+/*
+ * Copyright (C) 2016 AriaLyy(https://github.com/AriaLyy/Aria)
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.arialyy.aria.core.command.normal;
+
+import android.text.TextUtils;
+import com.arialyy.aria.core.AriaManager;
+import com.arialyy.aria.core.QueueMod;
+import com.arialyy.aria.core.download.DownloadGroupTask;
+import com.arialyy.aria.core.download.DownloadTask;
+import com.arialyy.aria.core.inf.AbsTask;
+import com.arialyy.aria.core.inf.IEntity;
+import com.arialyy.aria.core.inf.AbsTaskEntity;
+import com.arialyy.aria.core.queue.DownloadGroupTaskQueue;
+import com.arialyy.aria.core.queue.DownloadTaskQueue;
+import com.arialyy.aria.core.scheduler.DQueueMapping;
+import com.arialyy.aria.orm.Primary;
+
+/**
+ * Created by lyy on 2016/8/22.
+ * 开始命令
+ * 队列模型{@link QueueMod#NOW}、{@link QueueMod#WAIT}
+ */
+class StartCmd extends AbsNormalCmd {
+
+  StartCmd(String targetName, T entity) {
+    super(targetName, entity);
+  }
+
+  @Override public void executeCmd() {
+    if (!canExeCmd) return;
+    String mod;
+    int maxTaskNum;
+    AriaManager manager = AriaManager.getInstance(AriaManager.APP);
+    if (isDownloadCmd) {
+      mod = manager.getDownloadConfig().getQueueMod();
+      maxTaskNum = manager.getDownloadConfig().getMaxTaskNum();
+    } else {
+      mod = manager.getUploadConfig().getQueueMod();
+      maxTaskNum = manager.getUploadConfig().getMaxTaskNum();
+    }
+
+    AbsTask task = mQueue.getTask(mTaskEntity.getEntity());
+    if (task == null) {
+      task = mQueue.createTask(mTargetName, mTaskEntity);
+      if (!TextUtils.isEmpty(mTargetName)) {
+        task.setTargetName(mTargetName);
+      }
+      // 任务不存在时，根据配置不同，对任务执行操作
+      if (mod.equals(QueueMod.NOW.getTag())) {
+        mQueue.startTask(task);
+      } else if (mod.equals(QueueMod.WAIT.getTag())) {
+        if (mQueue.getCurrentExePoolNum() < maxTaskNum
+            || task.getState() == IEntity.STATE_STOP
+            || task.getState() == IEntity.STATE_COMPLETE) {
+          mQueue.startTask(task);
+        }
+      }
+    } else {
+      // 任务不存在时，根据配置不同，对任务执行操作
+      if (!task.isRunning()) {
+        mQueue.startTask(task);
+      }
+    }
+  }
+}
\ No newline at end of file
diff --git a/Aria/src/main/java/com/arialyy/aria/core/command/StopAllCmd.java b/Aria/src/main/java/com/arialyy/aria/core/command/normal/StopAllCmd.java
similarity index 75%
rename from Aria/src/main/java/com/arialyy/aria/core/command/StopAllCmd.java
rename to Aria/src/main/java/com/arialyy/aria/core/command/normal/StopAllCmd.java
index 2c16378e..431adfdd 100644
--- a/Aria/src/main/java/com/arialyy/aria/core/command/StopAllCmd.java
+++ b/Aria/src/main/java/com/arialyy/aria/core/command/normal/StopAllCmd.java
@@ -1,4 +1,4 @@
-package com.arialyy.aria.core.command;
+package com.arialyy.aria.core.command.normal;
 
 import com.arialyy.aria.core.inf.AbsTaskEntity;
 
@@ -6,7 +6,7 @@ import com.arialyy.aria.core.inf.AbsTaskEntity;
  * Created by AriaL on 2017/6/13.
  * 停止所有任务的命令，并清空所有等待队列
  */
-final class StopAllCmd extends AbsCmd {
+final class StopAllCmd extends AbsNormalCmd {
   /**
    * @param targetName 产生任务的对象名
    */
diff --git a/Aria/src/main/java/com/arialyy/aria/core/command/StopCmd.java b/Aria/src/main/java/com/arialyy/aria/core/command/normal/StopCmd.java
similarity index 78%
rename from Aria/src/main/java/com/arialyy/aria/core/command/StopCmd.java
rename to Aria/src/main/java/com/arialyy/aria/core/command/normal/StopCmd.java
index 1e1fb295..9d0b0811 100644
--- a/Aria/src/main/java/com/arialyy/aria/core/command/StopCmd.java
+++ b/Aria/src/main/java/com/arialyy/aria/core/command/normal/StopCmd.java
@@ -14,19 +14,19 @@
  * limitations under the License.
  */
 
-package com.arialyy.aria.core.command;
+package com.arialyy.aria.core.command.normal;
 
 import android.text.TextUtils;
 import android.util.Log;
+import com.arialyy.aria.core.inf.AbsTask;
 import com.arialyy.aria.core.inf.IEntity;
-import com.arialyy.aria.core.inf.ITask;
 import com.arialyy.aria.core.inf.AbsTaskEntity;
 
 /**
  * Created by lyy on 2016/9/20.
  * 停止命令
  */
-class StopCmd extends AbsCmd {
+class StopCmd extends AbsNormalCmd {
 
   StopCmd(String targetName, T entity) {
     super(targetName, entity);
@@ -34,10 +34,10 @@ class StopCmd extends AbsCmd {
 
   @Override public void executeCmd() {
     if (!canExeCmd) return;
-    ITask task = mQueue.getTask(mEntity.getEntity());
+    AbsTask task = mQueue.getTask(mTaskEntity.getEntity());
     if (task == null) {
-      if (mEntity.getEntity().getState() == IEntity.STATE_RUNNING) {
-        task = mQueue.createTask(mTargetName, mEntity);
+      if (mTaskEntity.getEntity().getState() == IEntity.STATE_RUNNING) {
+        task = mQueue.createTask(mTargetName, mTaskEntity);
         mQueue.stopTask(task);
       } else {
         Log.w(TAG, "停止命令执行失败，【调度器中没有该任务】");
diff --git a/Aria/src/main/java/com/arialyy/aria/core/download/DListener.java b/Aria/src/main/java/com/arialyy/aria/core/download/DListener.java
new file mode 100644
index 00000000..2d31b0d8
--- /dev/null
+++ b/Aria/src/main/java/com/arialyy/aria/core/download/DListener.java
@@ -0,0 +1,144 @@
+/*
+ * Copyright (C) 2016 AriaLyy(https://github.com/AriaLyy/Aria)
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package com.arialyy.aria.core.download;
+
+import android.os.Handler;
+import com.arialyy.aria.core.AriaManager;
+import com.arialyy.aria.core.download.downloader.DownloadListener;
+import com.arialyy.aria.core.inf.AbsEntity;
+import com.arialyy.aria.core.inf.AbsTask;
+import com.arialyy.aria.core.inf.IEntity;
+import com.arialyy.aria.core.scheduler.ISchedulers;
+import com.arialyy.aria.util.CommonUtil;
+import java.lang.ref.WeakReference;
+
+/**
+ * 下载监听类
+ */
+class DListener>
+    extends DownloadListener {
+  private WeakReference outHandler;
+  private long lastLen = 0;   //上一次发送长度
+  private boolean isFirst = true;
+  private ENTITY entity;
+  private TASK task;
+  private boolean isConvertSpeed = false;
+  boolean isWait = false;
+
+  DListener(TASK task, Handler outHandler) {
+    this.outHandler = new WeakReference<>(outHandler);
+    this.task = new WeakReference<>(task).get();
+    this.entity = this.task.getEntity();
+    final AriaManager manager = AriaManager.getInstance(AriaManager.APP);
+    isConvertSpeed = manager.getDownloadConfig().isConvertSpeed();
+  }
+
+  @Override public void onPre() {
+    saveData(IEntity.STATE_PRE, -1);
+    sendInState2Target(ISchedulers.PRE);
+  }
+
+  @Override public void onPostPre(long fileSize) {
+    entity.setFileSize(fileSize);
+    entity.setConvertFileSize(CommonUtil.formatFileSize(fileSize));
+    saveData(IEntity.STATE_POST_PRE, -1);
+    sendInState2Target(ISchedulers.POST_PRE);
+  }
+
+  @Override public void onStart(long startLocation) {
+    saveData(IEntity.STATE_RUNNING, startLocation);
+    sendInState2Target(ISchedulers.START);
+  }
+
+  @Override public void onResume(long resumeLocation) {
+    saveData(IEntity.STATE_RUNNING, resumeLocation);
+    sendInState2Target(ISchedulers.RESUME);
+  }
+
+  @Override public void onProgress(long currentLocation) {
+    entity.setCurrentProgress(currentLocation);
+    long speed = currentLocation - lastLen;
+    if (isFirst) {
+      speed = 0;
+      isFirst = false;
+    }
+    handleSpeed(speed);
+    sendInState2Target(ISchedulers.RUNNING);
+    lastLen = currentLocation;
+  }
+
+  @Override public void onStop(long stopLocation) {
+    saveData(isWait ? IEntity.STATE_WAIT : IEntity.STATE_STOP, stopLocation);
+    handleSpeed(0);
+    sendInState2Target(ISchedulers.STOP);
+  }
+
+  @Override public void onCancel() {
+    saveData(IEntity.STATE_CANCEL, -1);
+    handleSpeed(0);
+    sendInState2Target(ISchedulers.CANCEL);
+  }
+
+  @Override public void onComplete() {
+    saveData(IEntity.STATE_COMPLETE, entity.getFileSize());
+    handleSpeed(0);
+    sendInState2Target(ISchedulers.COMPLETE);
+  }
+
+  @Override public void onFail() {
+    entity.setFailNum(entity.getFailNum() + 1);
+    saveData(IEntity.STATE_FAIL, -1);
+    handleSpeed(0);
+    sendInState2Target(ISchedulers.FAIL);
+  }
+
+  private void handleSpeed(long speed) {
+    if (isConvertSpeed) {
+      entity.setConvertSpeed(CommonUtil.formatFileSize(speed) + "/s");
+    } else {
+      entity.setSpeed(speed);
+    }
+  }
+
+  /**
+   * 将任务状态发送给下载器
+   *
+   * @param state {@link ISchedulers#START}
+   */
+  private void sendInState2Target(int state) {
+    if (outHandler.get() != null) {
+      outHandler.get().obtainMessage(state, task).sendToTarget();
+    }
+  }
+
+  private void saveData(int state, long location) {
+    if (state == IEntity.STATE_CANCEL) {
+      entity.deleteData();
+    } else if (state == IEntity.STATE_COMPLETE) {
+      entity.setState(state);
+      entity.setComplete(true);
+      entity.setCompleteTime(System.currentTimeMillis());
+      entity.setCurrentProgress(entity.getFileSize());
+      entity.update();
+    } else {
+      entity.setState(state);
+      if (location != -1) {
+        entity.setCurrentProgress(location);
+      }
+      entity.update();
+    }
+  }
+}
\ No newline at end of file
diff --git a/Aria/src/main/java/com/arialyy/aria/core/download/DownloadEntity.java b/Aria/src/main/java/com/arialyy/aria/core/download/DownloadEntity.java
index 5c0e18bf..f710c50f 100644
--- a/Aria/src/main/java/com/arialyy/aria/core/download/DownloadEntity.java
+++ b/Aria/src/main/java/com/arialyy/aria/core/download/DownloadEntity.java
@@ -18,25 +18,107 @@ package com.arialyy.aria.core.download;
 
 import android.os.Parcel;
 import android.os.Parcelable;
-import com.arialyy.aria.core.inf.AbsEntity;
-import com.arialyy.aria.orm.Ignore;
+import com.arialyy.aria.core.inf.AbsNormalEntity;
+import com.arialyy.aria.core.inf.AbsTaskEntity;
+import com.arialyy.aria.orm.Primary;
 
 /**
  * Created by lyy on 2015/12/25.
  * 下载实体
- * ！！！ 注意：CREATOR要进行@Ignore注解
- * ！！！并且需要Parcelable时需要手动填写rowID;
  */
-public class DownloadEntity extends AbsEntity implements Parcelable {
+public class DownloadEntity extends AbsNormalEntity implements Parcelable {
   private String downloadUrl = ""; //下载路径
-  private String downloadPath = ""; //保存路径
-  private boolean isDownloadComplete = false;   //是否下载完成
+  @Primary private String downloadPath = ""; //保存路径
   private boolean isRedirect = false; //是否重定向
   private String redirectUrl = ""; //重定向链接
 
+  /**
+   * 所属任务组
+   */
+  private String groupName = "";
+
+  /**
+   * 通过{@link AbsTaskEntity#md5Key}从服务器的返回信息中获取的文件md5信息，如果服务器没有返回，则不会设置该信息
+   * 如果你已经设置了该任务的MD5信息，Aria也不会从服务器返回的信息中获取该信息
+   */
+  private String md5Code = "";
+
+  /**
+   * 通过{@link AbsTaskEntity#dispositionKey}从服务器的返回信息中获取的文件描述信息
+   */
+  private String disposition = "";
+
+  /**
+   * 从disposition获取到的文件名，如果可以获取到，则会赋值到这个字段
+   */
+  private String serverFileName = "";
+
+  @Override public String getKey() {
+    return downloadUrl;
+  }
+
   public DownloadEntity() {
   }
 
+  @Override public String toString() {
+    return "DownloadEntity{"
+        + "downloadUrl='"
+        + downloadUrl
+        + '\''
+        + ", downloadPath='"
+        + downloadPath
+        + '\''
+        + ", isRedirect="
+        + isRedirect
+        + ", redirectUrl='"
+        + redirectUrl
+        + '\''
+        + ", groupName='"
+        + groupName
+        + '\''
+        + ", md5Code='"
+        + md5Code
+        + '\''
+        + ", disposition='"
+        + disposition
+        + '\''
+        + ", serverFileName='"
+        + serverFileName
+        + '\''
+        + '}';
+  }
+
+  public String getMd5Code() {
+    return md5Code;
+  }
+
+  public void setMd5Code(String md5Code) {
+    this.md5Code = md5Code;
+  }
+
+  public String getDisposition() {
+    return disposition;
+  }
+
+  public void setDisposition(String disposition) {
+    this.disposition = disposition;
+  }
+
+  public String getServerFileName() {
+    return serverFileName;
+  }
+
+  public void setServerFileName(String serverFileName) {
+    this.serverFileName = serverFileName;
+  }
+
+  public String getGroupName() {
+    return groupName;
+  }
+
+  public void setGroupName(String groupName) {
+    this.groupName = groupName;
+  }
 
   public String getDownloadUrl() {
     return downloadUrl;
@@ -56,14 +138,6 @@ public class DownloadEntity extends AbsEntity implements Parcelable {
     return this;
   }
 
-  public boolean isDownloadComplete() {
-    return isDownloadComplete;
-  }
-
-  public void setDownloadComplete(boolean downloadComplete) {
-    isDownloadComplete = downloadComplete;
-  }
-
   @Override public DownloadEntity clone() throws CloneNotSupportedException {
     return (DownloadEntity) super.clone();
   }
@@ -92,21 +166,27 @@ public class DownloadEntity extends AbsEntity implements Parcelable {
     super.writeToParcel(dest, flags);
     dest.writeString(this.downloadUrl);
     dest.writeString(this.downloadPath);
-    dest.writeByte(this.isDownloadComplete ? (byte) 1 : (byte) 0);
     dest.writeByte(this.isRedirect ? (byte) 1 : (byte) 0);
     dest.writeString(this.redirectUrl);
+    dest.writeString(this.groupName);
+    dest.writeString(this.md5Code);
+    dest.writeString(this.disposition);
+    dest.writeString(this.serverFileName);
   }
 
   protected DownloadEntity(Parcel in) {
     super(in);
     this.downloadUrl = in.readString();
     this.downloadPath = in.readString();
-    this.isDownloadComplete = in.readByte() != 0;
     this.isRedirect = in.readByte() != 0;
     this.redirectUrl = in.readString();
+    this.groupName = in.readString();
+    this.md5Code = in.readString();
+    this.disposition = in.readString();
+    this.serverFileName = in.readString();
   }
 
-  @Ignore public static final Creator CREATOR = new Creator() {
+  public static final Creator CREATOR = new Creator() {
     @Override public DownloadEntity createFromParcel(Parcel source) {
       return new DownloadEntity(source);
     }
diff --git a/Aria/src/main/java/com/arialyy/aria/core/download/DownloadGroupEntity.java b/Aria/src/main/java/com/arialyy/aria/core/download/DownloadGroupEntity.java
new file mode 100644
index 00000000..da96b5ff
--- /dev/null
+++ b/Aria/src/main/java/com/arialyy/aria/core/download/DownloadGroupEntity.java
@@ -0,0 +1,102 @@
+/*
+ * Copyright (C) 2016 AriaLyy(https://github.com/AriaLyy/Aria)
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package com.arialyy.aria.core.download;
+
+import android.os.Parcel;
+import com.arialyy.aria.core.inf.AbsGroupEntity;
+import com.arialyy.aria.orm.NormalList;
+import com.arialyy.aria.orm.OneToMany;
+import java.util.ArrayList;
+import java.util.List;
+
+/**
+ * Created by AriaL on 2017/6/29.
+ * 下载任务组实体
+ */
+public class DownloadGroupEntity extends AbsGroupEntity {
+
+  @OneToMany(table = DownloadEntity.class, key = "groupName") private List subtask =
+      new ArrayList<>();
+
+  /**
+   * 子任务链接组
+   */
+  @NormalList(clazz = String.class) private List urls = new ArrayList<>();
+
+  /**
+   * 任务组下载文件的文件夹地址
+   *
+   * @see DownloadGroupTarget#setDownloadDirPath(String)
+   */
+  private String dirPath = "";
+
+  public List getSubTask() {
+    return subtask;
+  }
+
+  void setSubTasks(List subTasks) {
+    this.subtask = subTasks;
+  }
+
+  public String getDirPath() {
+    return dirPath;
+  }
+
+  public void setDirPath(String dirPath) {
+    this.dirPath = dirPath;
+  }
+
+  public List getUrls() {
+    return urls;
+  }
+
+  void setUrls(List urls) {
+    this.urls = urls;
+  }
+
+  void setGroupName(String key) {
+    this.groupName = key;
+  }
+
+  public DownloadGroupEntity() {
+  }
+
+  @Override public int describeContents() {
+    return 0;
+  }
+
+  @Override public void writeToParcel(Parcel dest, int flags) {
+    super.writeToParcel(dest, flags);
+    dest.writeTypedList(this.subtask);
+    dest.writeString(this.dirPath);
+  }
+
+  protected DownloadGroupEntity(Parcel in) {
+    super(in);
+    this.subtask = in.createTypedArrayList(DownloadEntity.CREATOR);
+    this.dirPath = in.readString();
+  }
+
+  public static final Creator CREATOR = new Creator() {
+    @Override public DownloadGroupEntity createFromParcel(Parcel source) {
+      return new DownloadGroupEntity(source);
+    }
+
+    @Override public DownloadGroupEntity[] newArray(int size) {
+      return new DownloadGroupEntity[size];
+    }
+  };
+}
diff --git a/Aria/src/main/java/com/arialyy/aria/core/download/DownloadGroupTarget.java b/Aria/src/main/java/com/arialyy/aria/core/download/DownloadGroupTarget.java
new file mode 100644
index 00000000..e77e1c06
--- /dev/null
+++ b/Aria/src/main/java/com/arialyy/aria/core/download/DownloadGroupTarget.java
@@ -0,0 +1,241 @@
+/*
+ * Copyright (C) 2016 AriaLyy(https://github.com/AriaLyy/Aria)
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package com.arialyy.aria.core.download;
+
+import android.text.TextUtils;
+import com.arialyy.aria.core.inf.AbsGroupTarget;
+import com.arialyy.aria.orm.DbEntity;
+import com.arialyy.aria.orm.DbUtil;
+import com.arialyy.aria.util.CheckUtil;
+import com.arialyy.aria.util.CommonUtil;
+import java.io.File;
+import java.util.ArrayList;
+import java.util.List;
+
+/**
+ * Created by AriaL on 2017/6/29.
+ */
+public class DownloadGroupTarget
+    extends AbsGroupTarget {
+  private List mUrls = new ArrayList<>();
+  private final String TAG = "DownloadGroupTarget";
+  /**
+   * 子任务文件名
+   */
+  private List mSubTaskFileName = new ArrayList<>();
+  private String mGroupName;
+  /**
+   * 是否已经设置了文件路径
+   */
+  private boolean isSetDirPathed = false;
+
+  DownloadGroupTarget(DownloadGroupEntity groupEntity, String targetName) {
+    this.mTargetName = targetName;
+    if (groupEntity.getUrls() != null && !groupEntity.getUrls().isEmpty()) {
+      this.mUrls.addAll(groupEntity.getUrls());
+    }
+    init(groupEntity.getGroupName());
+  }
+
+  DownloadGroupTarget(List urls, String targetName) {
+    this.mTargetName = targetName;
+    this.mUrls = urls;
+    init(CommonUtil.getMd5Code(urls));
+  }
+
+  private void init(String key) {
+    mGroupName = key;
+    mTaskEntity = DbEntity.findFirst(DownloadGroupTaskEntity.class, "key=?", key);
+    if (mTaskEntity == null) {
+      mTaskEntity = new DownloadGroupTaskEntity();
+      mTaskEntity.key = key;
+      mTaskEntity.entity = getDownloadGroupEntity();
+      mTaskEntity.insert();
+    }
+    if (mTaskEntity.entity == null) {
+      mTaskEntity.entity = getDownloadGroupEntity();
+    }
+    mEntity = mTaskEntity.entity;
+  }
+
+  /**
+   * 查询任务组实体，如果数据库不存在该实体，则新创建一个新的任务组实体
+   */
+  private DownloadGroupEntity getDownloadGroupEntity() {
+    DownloadGroupEntity entity =
+        DbEntity.findFirst(DownloadGroupEntity.class, "groupName=?", mGroupName);
+    if (entity == null) {
+      entity = new DownloadGroupEntity();
+      entity.setGroupName(mGroupName);
+      entity.setUrls(mUrls);
+      entity.insert();
+    }
+    return entity;
+  }
+
+  /**
+   * 设置任务组别名
+   */
+  public DownloadGroupTarget setGroupAlias(String alias) {
+    if (TextUtils.isEmpty(alias)) return this;
+    mEntity.setAlias(alias);
+    mEntity.update();
+    return this;
+  }
+
+  /**
+   * 如果你是使用{@link DownloadReceiver#load(DownloadGroupEntity)}进行下载操作，那么你需要设置任务组的下载地址
+   */
+  public DownloadGroupTarget setGroupUrl(List urls) {
+    CheckUtil.checkDownloadUrls(urls);
+    mUrls.clear();
+    mUrls.addAll(urls);
+    mEntity.setGroupName(CommonUtil.getMd5Code(urls));
+    mEntity.update();
+    return this;
+  }
+
+  /**
+   * 设置任务组的文件夹路径，在Aria中，任务组的所有子任务都会下载到以任务组组名的文件夹中。
+   * 如：groupDirPath = "/mnt/sdcard/download/group_test"
+   * 
+   *   {@code
+   *      + mnt
+   *        + sdcard
+   *          + download
+   *            + group_test
+   *              - task1.apk
+   *              - task2.apk
+   *              - task3.apk
+   *              ....
+   *
+   *   }
+   * 

+   *
+   * @param groupDirPath 任务组保存文件夹路径
+   */
+  public DownloadGroupTarget setDownloadDirPath(String groupDirPath) {
+    if (TextUtils.isEmpty(groupDirPath)) {
+      throw new NullPointerException("任务组文件夹保存路径不能为null");
+    }
+
+    isSetDirPathed = true;
+    if (mEntity.getDirPath().equals(groupDirPath)) return this;
+
+    File file = new File(groupDirPath);
+    if (file.exists() && file.isFile()) {
+      throw new IllegalArgumentException("路径不能为文件");
+    }
+    if (!file.exists()) {
+      file.mkdirs();
+    }
+
+    mEntity.setDirPath(groupDirPath);
+    if (!TextUtils.isEmpty(mEntity.getDirPath())) {
+      reChangeDirPath(groupDirPath);
+    } else {
+      mEntity.setSubTasks(createSubTask());
+    }
+    mEntity.update();
+    return this;
+  }
+
+  /**
+   * 改变任务组文件夹路径，修改文件夹路径会将子任务所有路径更换
+   *
+   * @param newDirPath 新的文件夹路径
+   */
+  private void reChangeDirPath(String newDirPath) {
+    List subTask = mEntity.getSubTask();
+    if (subTask != null && !subTask.isEmpty()) {
+      for (DownloadEntity entity : subTask) {
+        String oldPath = entity.getDownloadPath();
+        String newPath = newDirPath + "/" + entity.getFileName();
+        File file = new File(oldPath);
+        file.renameTo(new File(newPath));
+        DbEntity.exeSql("UPDATE DownloadEntity SET downloadPath='"
+            + newPath
+            + "' WHERE downloadPath='"
+            + oldPath
+            + "'");
+        DbEntity.exeSql(
+            "UPDATE DownloadTaskEntity SET key='" + newPath + "' WHERE key='" + oldPath + "'");
+      }
+    } else {
+      mEntity.setSubTasks(createSubTask());
+    }
+  }
+
+  /**
+   * 设置子任务文件名，该方法必须在{@link #setDownloadDirPath(String)}之后调用，否则不生效
+   */
+  public DownloadGroupTarget setSubTaskFileName(List subTaskFileName) {
+    if (subTaskFileName == null || subTaskFileName.isEmpty()) return this;
+    mSubTaskFileName.addAll(subTaskFileName);
+    if (mUrls.size() != subTaskFileName.size()) {
+      throw new IllegalArgumentException("下载链接数必须要和保存路径的数量一致");
+    }
+    if (isSetDirPathed) {
+      List entities = mEntity.getSubTask();
+      int i = 0;
+      for (DownloadEntity entity : entities) {
+        String newName = mSubTaskFileName.get(i);
+        updateSubFileName(entity, newName);
+        i++;
+      }
+    }
+    return this;
+  }
+
+  /**
+   * 更新子任务文件名
+   */
+  private void updateSubFileName(DownloadEntity entity, String newName) {
+    if (!newName.equals(entity.getFileName())) {
+      String oldPath = mEntity.getDirPath() + "/" + entity.getFileName();
+      String newPath = mEntity.getDirPath() + "/" + newName;
+      File file = new File(oldPath);
+      if (file.exists()) {
+        file.renameTo(new File(newPath));
+      }
+      DbEntity.exeSql(
+          "UPDATE DownloadTaskEntity SET key='" + newPath + "' WHERE key='" + oldPath + "'");
+      entity.setDownloadPath(newPath);
+      entity.setFileName(newName);
+      entity.update();
+    }
+  }
+
+  /**
+   * 创建子任务
+   */
+  private List createSubTask() {
+    List list = new ArrayList<>();
+    for (int i = 0, len = mUrls.size(); i < len; i++) {
+      DownloadEntity entity = new DownloadEntity();
+      entity.setDownloadUrl(mUrls.get(i));
+      String fileName = mSubTaskFileName.isEmpty() ? createFileName(entity.getDownloadUrl())
+          : mSubTaskFileName.get(i);
+      entity.setDownloadPath(mEntity.getDirPath() + "/" + fileName);
+      entity.setGroupName(mGroupName);
+      entity.setGroupChild(true);
+      entity.setFileName(fileName);
+      entity.insert();
+      list.add(entity);
+    }
+    return list;
+  }
+}
diff --git a/Aria/src/main/java/com/arialyy/aria/core/download/DownloadGroupTask.java b/Aria/src/main/java/com/arialyy/aria/core/download/DownloadGroupTask.java
new file mode 100644
index 00000000..1a375bba
--- /dev/null
+++ b/Aria/src/main/java/com/arialyy/aria/core/download/DownloadGroupTask.java
@@ -0,0 +1,98 @@
+/*
+ * Copyright (C) 2016 AriaLyy(https://github.com/AriaLyy/Aria)
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package com.arialyy.aria.core.download;
+
+import android.os.Handler;
+import com.arialyy.aria.core.AriaManager;
+import com.arialyy.aria.core.download.downloader.DownloadGroupUtil;
+import com.arialyy.aria.core.download.downloader.IDownloadUtil;
+import com.arialyy.aria.core.inf.AbsGroupTask;
+import com.arialyy.aria.core.scheduler.ISchedulers;
+import com.arialyy.aria.util.CheckUtil;
+
+/**
+ * Created by AriaL on 2017/6/27.
+ * 任务组任务
+ */
+public class DownloadGroupTask extends AbsGroupTask {
+  private final String TAG = "DownloadGroupTask";
+  private DListener mListener;
+  private IDownloadUtil mUtil;
+
+  private DownloadGroupTask(DownloadGroupTaskEntity taskEntity, Handler outHandler) {
+    mTaskEntity = taskEntity;
+    mEntity = taskEntity.getEntity();
+    mOutHandler = outHandler;
+    mContext = AriaManager.APP;
+    mListener = new DListener<>(this, mOutHandler);
+    mUtil = new DownloadGroupUtil(mListener, mTaskEntity);
+  }
+
+  @Override public boolean isRunning() {
+    return mUtil.isDownloading();
+  }
+
+  @Override public void start() {
+    mUtil.startDownload();
+  }
+
+  @Override public void stop() {
+    if (!mUtil.isDownloading()) {
+      if (mOutHandler != null) {
+        mOutHandler.obtainMessage(ISchedulers.STOP, this).sendToTarget();
+      }
+    }
+    mUtil.stopDownload();
+  }
+
+  @Override public void cancel() {
+    if (!mUtil.isDownloading()) {
+      if (mOutHandler != null) {
+        mOutHandler.obtainMessage(ISchedulers.CANCEL, this).sendToTarget();
+      }
+    }
+    mUtil.cancelDownload();
+  }
+
+  public static class Builder {
+    DownloadGroupTaskEntity taskEntity;
+    Handler outHandler;
+    String targetName;
+
+    public Builder(String targetName, DownloadGroupTaskEntity taskEntity) {
+      CheckUtil.checkTaskEntity(taskEntity);
+      this.targetName = targetName;
+      this.taskEntity = taskEntity;
+    }
+
+    /**
+     * 设置自定义Handler处理下载状态时间
+     *
+     * @param schedulers {@link ISchedulers}
+     */
+    public DownloadGroupTask.Builder setOutHandler(ISchedulers schedulers) {
+      this.outHandler = new Handler(schedulers);
+      return this;
+    }
+
+    public DownloadGroupTask build() {
+      DownloadGroupTask task = new DownloadGroupTask(taskEntity, outHandler);
+      task.setTargetName(targetName);
+      taskEntity.save();
+      return task;
+    }
+  }
+}
diff --git a/Aria/src/main/java/com/arialyy/aria/core/download/DownloadGroupTaskEntity.java b/Aria/src/main/java/com/arialyy/aria/core/download/DownloadGroupTaskEntity.java
new file mode 100644
index 00000000..4987a1d0
--- /dev/null
+++ b/Aria/src/main/java/com/arialyy/aria/core/download/DownloadGroupTaskEntity.java
@@ -0,0 +1,31 @@
+/*
+ * Copyright (C) 2016 AriaLyy(https://github.com/AriaLyy/Aria)
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package com.arialyy.aria.core.download;
+
+import com.arialyy.aria.core.inf.AbsTaskEntity;
+import com.arialyy.aria.orm.OneToOne;
+
+/**
+ * Created by AriaL on 2017/7/1.
+ */
+public class DownloadGroupTaskEntity extends AbsTaskEntity {
+
+  @OneToOne(table = DownloadGroupEntity.class, key = "groupName") public DownloadGroupEntity entity;
+
+  @Override public DownloadGroupEntity getEntity() {
+    return entity;
+  }
+}
diff --git a/Aria/src/main/java/com/arialyy/aria/core/download/DownloadReceiver.java b/Aria/src/main/java/com/arialyy/aria/core/download/DownloadReceiver.java
index 8f29f02f..ff289bd7 100644
--- a/Aria/src/main/java/com/arialyy/aria/core/download/DownloadReceiver.java
+++ b/Aria/src/main/java/com/arialyy/aria/core/download/DownloadReceiver.java
@@ -17,12 +17,14 @@ package com.arialyy.aria.core.download;
 
 import android.support.annotation.NonNull;
 import com.arialyy.aria.core.AriaManager;
-import com.arialyy.aria.core.inf.ICmd;
+import com.arialyy.aria.core.inf.AbsEntity;
+import com.arialyy.aria.core.inf.AbsReceiver;
 import com.arialyy.aria.core.inf.IReceiver;
-import com.arialyy.aria.core.command.CmdFactory;
-import com.arialyy.aria.core.command.AbsCmd;
+import com.arialyy.aria.core.command.normal.NormalCmdFactory;
+import com.arialyy.aria.core.scheduler.DownloadGroupSchedulers;
 import com.arialyy.aria.core.scheduler.DownloadSchedulers;
 import com.arialyy.aria.core.scheduler.ISchedulerListener;
+import com.arialyy.aria.core.upload.ProxyHelper;
 import com.arialyy.aria.orm.DbEntity;
 import com.arialyy.aria.util.CheckUtil;
 import com.arialyy.aria.util.CommonUtil;
@@ -34,10 +36,8 @@ import java.util.Set;
  * Created by lyy on 2016/12/5.
  * 下载功能接收器
  */
-public class DownloadReceiver implements IReceiver {
-  private static final String TAG = "DownloadReceiver";
-  public String targetName;
-  public Object obj;
+public class DownloadReceiver extends AbsReceiver {
+  private final String TAG = "DownloadReceiver";
   public ISchedulerListener listener;
 
   /**
@@ -51,24 +51,67 @@ public class DownloadReceiver implements IReceiver {
   }
 
   /**
-   * {@link #load(String)}，请使用该方法
+   * 使用下载实体执行下载操作
    */
-  @Deprecated public DownloadTarget load(DownloadEntity entity) {
+  public DownloadTarget load(DownloadEntity entity) {
     return new DownloadTarget(entity, targetName);
   }
 
   /**
-   * 读取下载链接
+   * 加载下载地址
    */
   public DownloadTarget load(@NonNull String downloadUrl) {
     CheckUtil.checkDownloadUrl(downloadUrl);
-    DownloadEntity entity =
-        DownloadEntity.findData(DownloadEntity.class, "downloadUrl=?", downloadUrl);
-    if (entity == null) {
-      entity = new DownloadEntity();
+    return new DownloadTarget(downloadUrl, targetName);
+  }
+
+  /**
+   * 加载下载地址，如果任务组的中的下载地址改变了，则任务从新的一个任务组
+   */
+  public DownloadGroupTarget load(List urls) {
+    CheckUtil.checkDownloadUrls(urls);
+    return new DownloadGroupTarget(urls, targetName);
+  }
+
+  /**
+   * 使用任务组实体执行任务组的实体执行任务组的下载操作
+   *
+   * @param groupEntity 如果加载的任务实体没有子项的下载地址，
+   * 那么你需要使用{@link DownloadGroupTarget#setGroupUrl(List)}设置子项的下载地址
+   */
+  public DownloadGroupTarget load(DownloadGroupEntity groupEntity) {
+    return new DownloadGroupTarget(groupEntity, targetName);
+  }
+
+  /**
+   * 将当前类注册到Aria
+   */
+  public DownloadReceiver register() {
+    String className = obj.getClass().getName();
+    Set dCounter = ProxyHelper.getInstance().downloadCounter;
+    Set dgCounter = ProxyHelper.getInstance().downloadGroupCounter;
+    if (dCounter != null && dCounter.contains(className)) {
+      DownloadSchedulers.getInstance().register(obj);
+    }
+    if (dgCounter != null && dgCounter.contains(className)) {
+      DownloadGroupSchedulers.getInstance().register(obj);
+    }
+    return this;
+  }
+
+  /**
+   * 取消注册
+   */
+  @Override public void unRegister() {
+    String className = obj.getClass().getName();
+    Set dCounter = ProxyHelper.getInstance().downloadCounter;
+    Set dgCounter = ProxyHelper.getInstance().downloadGroupCounter;
+    if (dCounter != null && dCounter.contains(className)) {
+      DownloadSchedulers.getInstance().unRegister(obj);
+    }
+    if (dgCounter != null && dgCounter.contains(className)) {
+      DownloadGroupSchedulers.getInstance().unRegister(obj);
     }
-    entity.setDownloadUrl(downloadUrl);
-    return new DownloadTarget(entity, targetName);
   }
 
   /**
@@ -83,21 +126,6 @@ public class DownloadReceiver implements IReceiver {
     return this;
   }
 
-  /**
-   * 将当前类注册到Aria
-   */
-  public DownloadReceiver register() {
-    DownloadSchedulers.getInstance().register(obj);
-    return this;
-  }
-
-  /**
-   * 取消注册
-   */
-  @Override public void unRegister() {
-    DownloadSchedulers.getInstance().unRegister(obj);
-  }
-
   /**
    * 移除回调
    *
@@ -119,27 +147,74 @@ public class DownloadReceiver implements IReceiver {
    */
   public DownloadEntity getDownloadEntity(String downloadUrl) {
     CheckUtil.checkDownloadUrl(downloadUrl);
-    return DownloadEntity.findData(DownloadEntity.class, "downloadUrl=?", downloadUrl);
+    return DbEntity.findFirst(DownloadEntity.class, "downloadUrl=? and isGroupChild='false'",
+        downloadUrl);
+  }
+
+  /**
+   * 通过下载链接获取保存在数据库的下载任务实体
+   */
+  public DownloadTaskEntity getDownloadTask(String downloadUrl) {
+    CheckUtil.checkDownloadUrl(downloadUrl);
+    return DbEntity.findFirst(DownloadTaskEntity.class, "groupName=? and isGroupTask='false'",
+        downloadUrl);
+  }
+
+  /**
+   * 通过下载链接获取保存在数据库的下载任务组实体
+   */
+  public DownloadGroupTaskEntity getDownloadGroupTask(List urls) {
+    CheckUtil.checkDownloadUrls(urls);
+    String hashCode = CommonUtil.getMd5Code(urls);
+    return DbEntity.findFirst(DownloadGroupTaskEntity.class, "key=?", hashCode);
   }
 
   /**
    * 下载任务是否存在
    */
   @Override public boolean taskExists(String downloadUrl) {
-    return DownloadEntity.findData(DownloadEntity.class, "downloadUrl=?", downloadUrl) != null;
+    return DownloadEntity.findFirst(DownloadEntity.class, "downloadUrl=?", downloadUrl) != null;
   }
 
-  @Override public List getTaskList() {
-    return DownloadEntity.findAllData(DownloadEntity.class);
+  /**
+   * 获取普通下载任务列表
+   */
+  @Override public List getSimpleTaskList() {
+    return DownloadEntity.findDatas(DownloadEntity.class, "isGroupChild=? and downloadPath!=''",
+        "false");
+  }
+
+  /**
+   * 获取任务组列表
+   */
+  public List getGroupTaskList() {
+    return DownloadEntity.findAllData(DownloadGroupEntity.class);
+  }
+
+  /**
+   * 获取普通任务和任务组的任务列表
+   */
+  public List getTotleTaskList() {
+    List list = new ArrayList<>();
+    List simpleTask = getSimpleTaskList();
+    List groupTask = getGroupTaskList();
+    if (simpleTask != null && !simpleTask.isEmpty()) {
+      list.addAll(simpleTask);
+    }
+    if (groupTask != null && !groupTask.isEmpty()) {
+      list.addAll(groupTask);
+    }
+    return list;
   }
 
   /**
    * 停止所有正在下载的任务，并清空等待队列。
    */
   @Override public void stopAllTask() {
-    final AriaManager ariaManager = AriaManager.getInstance(AriaManager.APP);
-    ariaManager.setCmd(CmdFactory.getInstance()
-        .createCmd(targetName, new DownloadTaskEntity(), CmdFactory.TASK_STOP_ALL)).exe();
+    AriaManager.getInstance(AriaManager.APP)
+        .setCmd(NormalCmdFactory.getInstance()
+            .createCmd(targetName, new DownloadTaskEntity(), NormalCmdFactory.TASK_STOP_ALL))
+        .exe();
   }
 
   /**
@@ -148,23 +223,23 @@ public class DownloadReceiver implements IReceiver {
    * 2.如果队列执行队列已经满了，则将所有任务添加到等待队列中
    */
   public void resumeAllTask() {
-    final AriaManager ariaManager = AriaManager.getInstance(AriaManager.APP);
-    ariaManager.setCmd(CmdFactory.getInstance()
-        .createCmd(targetName, new DownloadTaskEntity(), CmdFactory.TASK_RESUME_ALL)).exe();
+    AriaManager.getInstance(AriaManager.APP)
+        .setCmd(NormalCmdFactory.getInstance()
+            .createCmd(targetName, new DownloadTaskEntity(), NormalCmdFactory.TASK_RESUME_ALL))
+        .exe();
   }
 
   /**
    * 删除所有任务
+   *
+   * @param removeFile {@code true} 删除已经下载完成的任务，不仅删除下载记录，还会删除已经下载完成的文件，{@code false}
+   * 如果文件已经下载完成，只删除下载记录
    */
-  @Override public void removeAllTask() {
+  @Override public void removeAllTask(boolean removeFile) {
     final AriaManager ariaManager = AriaManager.getInstance(AriaManager.APP);
-    List allEntity = DbEntity.findAllData(DownloadEntity.class);
-    List cancelCmds = new ArrayList<>();
-    for (DownloadEntity entity : allEntity) {
-      cancelCmds.add(
-          CommonUtil.createCmd(targetName, new DownloadTaskEntity(entity), CmdFactory.TASK_CANCEL));
-    }
-    ariaManager.setCmds(cancelCmds).exe();
+    ariaManager.setCmd(CommonUtil.createCmd(targetName, new DownloadTaskEntity(),
+        NormalCmdFactory.TASK_CANCEL_ALL)).exe();
+
     Set keys = ariaManager.getReceiver().keySet();
     for (String key : keys) {
       IReceiver receiver = ariaManager.getReceiver().get(key);
diff --git a/Aria/src/main/java/com/arialyy/aria/core/download/DownloadTarget.java b/Aria/src/main/java/com/arialyy/aria/core/download/DownloadTarget.java
index 05e6c2d9..c77e853c 100644
--- a/Aria/src/main/java/com/arialyy/aria/core/download/DownloadTarget.java
+++ b/Aria/src/main/java/com/arialyy/aria/core/download/DownloadTarget.java
@@ -17,31 +17,60 @@ package com.arialyy.aria.core.download;
 
 import android.support.annotation.NonNull;
 import android.text.TextUtils;
-import android.util.Log;
-import com.arialyy.aria.core.RequestEnum;
-import com.arialyy.aria.core.inf.AbsTarget;
+import com.arialyy.aria.core.inf.AbsNormalTarget;
+import com.arialyy.aria.core.inf.IEntity;
 import com.arialyy.aria.core.queue.DownloadTaskQueue;
+import com.arialyy.aria.orm.DbEntity;
 import java.io.File;
-import java.util.Map;
 
 /**
  * Created by lyy on 2016/12/5.
  * https://github.com/AriaLyy/Aria
  */
-public class DownloadTarget extends AbsTarget {
+public class DownloadTarget
+    extends AbsNormalTarget {
 
   DownloadTarget(DownloadEntity entity, String targetName) {
-    this.entity = entity;
-    this.targetName = targetName;
-    taskEntity = new DownloadTaskEntity(entity);
+    this(entity.getDownloadUrl(), targetName);
   }
 
-  @Override public void pause() {
-    super.pause();
+  DownloadTarget(String url, String targetName) {
+    mTargetName = targetName;
+    DownloadEntity entity = getEntity(url);
+    mTaskEntity = DbEntity.findFirst(DownloadTaskEntity.class, "key=? and isGroupTask='false'",
+        entity.getDownloadPath());
+    if (mTaskEntity == null) {
+      mTaskEntity = new DownloadTaskEntity();
+      mTaskEntity.key = entity.getDownloadPath();
+      mTaskEntity.entity = entity;
+      mTaskEntity.save();
+    }
+    if (mTaskEntity.entity == null) {
+      mTaskEntity.entity = entity;
+    }
+    mEntity = entity;
   }
 
-  @Override public void resume() {
-    super.resume();
+  /**
+   * 如果任务存在，但是下载实体不存在，则通过下载地址获取下载实体
+   *
+   * @param downloadUrl 下载地址
+   */
+  private DownloadEntity getEntity(String downloadUrl) {
+    DownloadEntity entity =
+        DownloadEntity.findFirst(DownloadEntity.class, "downloadUrl=? and isGroupChild='false'",
+            downloadUrl);
+    if (entity == null) {
+      entity = new DownloadEntity();
+      entity.setDownloadUrl(downloadUrl);
+      entity.setGroupChild(false);
+      entity.save();
+    }
+    File file = new File(entity.getDownloadPath());
+    if (!file.exists()) {
+      entity.setState(IEntity.STATE_WAIT);
+    }
+    return entity;
   }
 
   /**
@@ -65,53 +94,11 @@ public class DownloadTarget extends AbsTarget headers) {
-    super._addHeaders(headers);
-    return this;
-  }
-
   /**
    * 下载任务是否存在
    */
   @Override public boolean taskExists() {
-    return DownloadTaskQueue.getInstance().getTask(entity.getDownloadUrl()) != null;
-  }
-
-  /**
-   * 设置请求类型
-   *
-   * @param requestEnum {@link RequestEnum}
-   */
-  public DownloadTarget setRequestMode(RequestEnum requestEnum) {
-    super._setRequestMode(requestEnum);
-    return this;
+    return DownloadTaskQueue.getInstance().getTask(mEntity.getDownloadUrl()) != null;
   }
 
   /**
@@ -122,8 +109,11 @@ public class DownloadTarget extends AbsTarget {
+public class DownloadTask extends AbsNormalTask {
   public static final String TAG = "DownloadTask";
 
-  private IDownloadListener mListener;
-  private Handler mOutHandler;
-  private IDownloadUtil mUtil;
-  private boolean isWait = false;
+  private DListener mListener;
+  private SimpleDownloadUtil mUtil;
 
   private DownloadTask(DownloadTaskEntity taskEntity, Handler outHandler) {
-    mEntity = taskEntity.downloadEntity;
+    mEntity = taskEntity.getEntity();
     mOutHandler = outHandler;
     mContext = AriaManager.APP;
-    mListener = new DListener(mContext, this, mOutHandler);
-    mUtil = new DownloadUtil(mContext, taskEntity, mListener);
+    mListener = new DListener<>(this, mOutHandler);
+    mUtil = new SimpleDownloadUtil(taskEntity, mListener);
   }
 
   /**
@@ -98,7 +90,6 @@ public class DownloadTask extends AbsTask {
    * 暂停任务，并让任务处于等待状态
    */
   @Override public void stopAndWait() {
-    super.stopAndWait();
     stop(true);
   }
 
@@ -115,13 +106,10 @@ public class DownloadTask extends AbsTask {
    * 开始下载
    */
   @Override public void start() {
-    isWait = false;
+    mListener.isWait = false;
     if (mUtil.isDownloading()) {
       Log.d(TAG, "任务正在下载");
     } else {
-      if (mListener == null || isWait) {
-        mListener = new DListener(mContext, this, mOutHandler);
-      }
       mUtil.startDownload();
     }
   }
@@ -134,20 +122,15 @@ public class DownloadTask extends AbsTask {
   }
 
   private void stop(boolean isWait) {
-    this.isWait = isWait;
+    mListener.isWait = isWait;
     if (mUtil.isDownloading()) {
       mUtil.stopDownload();
     } else {
       mEntity.setState(isWait ? IEntity.STATE_WAIT : IEntity.STATE_STOP);
-      mEntity.save();
+      mEntity.update();
       if (mOutHandler != null) {
-        mOutHandler.obtainMessage(DownloadSchedulers.STOP, this).sendToTarget();
+        mOutHandler.obtainMessage(ISchedulers.STOP, this).sendToTarget();
       }
-      // 发送停止下载的广播
-      Intent intent = CommonUtil.createIntent(mContext.getPackageName(), Aria.ACTION_STOP);
-      intent.putExtra(Aria.CURRENT_LOCATION, mEntity.getCurrentProgress());
-      intent.putExtra(Aria.DOWNLOAD_ENTITY, mEntity);
-      mContext.sendBroadcast(intent);
     }
   }
 
@@ -155,20 +138,13 @@ public class DownloadTask extends AbsTask {
    * 取消下载
    */
   @Override public void cancel() {
-    if (!mEntity.isDownloadComplete()) {
+    if (!mEntity.isComplete()) {
       if (!mUtil.isDownloading()) {
         if (mOutHandler != null) {
-          mOutHandler.obtainMessage(DownloadSchedulers.CANCEL, this).sendToTarget();
+          mOutHandler.obtainMessage(ISchedulers.CANCEL, this).sendToTarget();
         }
-        //发送取消下载的广播
-        Intent intent = CommonUtil.createIntent(mContext.getPackageName(), Aria.ACTION_CANCEL);
-        intent.putExtra(Aria.DOWNLOAD_ENTITY, mEntity);
-        mContext.sendBroadcast(intent);
       }
       mUtil.cancelDownload();
-      mUtil.delConfigFile();
-      mUtil.delTempFile();
-      mEntity.deleteData();
     }
   }
 
@@ -178,7 +154,6 @@ public class DownloadTask extends AbsTask {
     String targetName;
 
     public Builder(String targetName, DownloadTaskEntity taskEntity) {
-      CheckUtil.checkTaskEntity(taskEntity);
       this.targetName = targetName;
       this.taskEntity = taskEntity;
     }
@@ -196,162 +171,9 @@ public class DownloadTask extends AbsTask {
     public DownloadTask build() {
       DownloadTask task = new DownloadTask(taskEntity, outHandler);
       task.setTargetName(targetName);
-      taskEntity.downloadEntity.save();
+      taskEntity.getEntity().save();
+      taskEntity.save();
       return task;
     }
   }
-
-  /**
-   * 下载监听类
-   */
-  private static class DListener extends DownloadListener {
-    WeakReference outHandler;
-    WeakReference wTask;
-    Context context;
-    Intent sendIntent;
-    long lastLen = 0;   //上一次发送长度
-    long lastTime = 0;
-    long INTERVAL_TIME = 1000;   //1m更新周期
-    boolean isFirst = true;
-    DownloadEntity downloadEntity;
-    DownloadTask task;
-    boolean isOpenBroadCast = false;
-    boolean isConvertSpeed = false;
-
-    DListener(Context context, DownloadTask task, Handler outHandler) {
-      this.context = context;
-      this.outHandler = new WeakReference<>(outHandler);
-      this.wTask = new WeakReference<>(task);
-      this.task = wTask.get();
-      this.downloadEntity = this.task.getDownloadEntity();
-      sendIntent = CommonUtil.createIntent(context.getPackageName(), Aria.ACTION_RUNNING);
-      sendIntent.putExtra(Aria.DOWNLOAD_ENTITY, downloadEntity);
-      final AriaManager manager = AriaManager.getInstance(context);
-      isOpenBroadCast = manager.getDownloadConfig().isOpenBreadCast();
-      isConvertSpeed = manager.getDownloadConfig().isConvertSpeed();
-    }
-
-    @Override public void supportBreakpoint(boolean support) {
-      super.supportBreakpoint(support);
-      if (!support) {
-        sendInState2Target(ISchedulers.SUPPORT_BREAK_POINT);
-        sendIntent(Aria.ACTION_SUPPORT_BREAK_POINT, -1);
-      }
-    }
-
-    @Override public void onPre() {
-      super.onPre();
-      downloadEntity.setState(IEntity.STATE_PRE);
-      sendInState2Target(ISchedulers.PRE);
-      sendIntent(Aria.ACTION_PRE, -1);
-    }
-
-    @Override public void onPostPre(long fileSize) {
-      super.onPostPre(fileSize);
-      downloadEntity.setFileSize(fileSize);
-      downloadEntity.setState(IEntity.STATE_POST_PRE);
-      sendInState2Target(ISchedulers.POST_PRE);
-      sendIntent(Aria.ACTION_POST_PRE, -1);
-    }
-
-    @Override public void onResume(long resumeLocation) {
-      super.onResume(resumeLocation);
-      downloadEntity.setState(IEntity.STATE_RUNNING);
-      sendInState2Target(ISchedulers.RESUME);
-      sendIntent(Aria.ACTION_RESUME, resumeLocation);
-    }
-
-    @Override public void onStart(long startLocation) {
-      super.onStart(startLocation);
-      downloadEntity.setState(IEntity.STATE_RUNNING);
-      sendInState2Target(ISchedulers.START);
-      sendIntent(Aria.ACTION_START, startLocation);
-    }
-
-    @Override public void onProgress(long currentLocation) {
-      super.onProgress(currentLocation);
-      if (System.currentTimeMillis() - lastTime > INTERVAL_TIME) {
-        long speed = currentLocation - lastLen;
-        sendIntent.putExtra(Aria.CURRENT_LOCATION, currentLocation);
-        sendIntent.putExtra(Aria.CURRENT_SPEED, speed);
-        lastTime = System.currentTimeMillis();
-        if (isFirst) {
-          speed = 0;
-          isFirst = false;
-        }
-        handleSpeed(speed);
-        downloadEntity.setCurrentProgress(currentLocation);
-        lastLen = currentLocation;
-        sendInState2Target(ISchedulers.RUNNING);
-        context.sendBroadcast(sendIntent);
-      }
-    }
-
-    @Override public void onStop(long stopLocation) {
-      super.onStop(stopLocation);
-      downloadEntity.setState(task.isWait ? IEntity.STATE_WAIT : IEntity.STATE_STOP);
-      handleSpeed(0);
-      sendInState2Target(ISchedulers.STOP);
-      sendIntent(Aria.ACTION_STOP, stopLocation);
-    }
-
-    @Override public void onCancel() {
-      super.onCancel();
-      downloadEntity.setState(IEntity.STATE_CANCEL);
-      handleSpeed(0);
-      sendInState2Target(ISchedulers.CANCEL);
-      sendIntent(Aria.ACTION_CANCEL, -1);
-      downloadEntity.deleteData();
-    }
-
-    @Override public void onComplete() {
-      super.onComplete();
-      downloadEntity.setState(IEntity.STATE_COMPLETE);
-      downloadEntity.setDownloadComplete(true);
-      handleSpeed(0);
-      sendInState2Target(ISchedulers.COMPLETE);
-      sendIntent(Aria.ACTION_COMPLETE, downloadEntity.getFileSize());
-    }
-
-    @Override public void onFail() {
-      super.onFail();
-      downloadEntity.setFailNum(downloadEntity.getFailNum() + 1);
-      downloadEntity.setState(IEntity.STATE_FAIL);
-      handleSpeed(0);
-      sendInState2Target(ISchedulers.FAIL);
-      sendIntent(Aria.ACTION_FAIL, -1);
-    }
-
-    private void handleSpeed(long speed) {
-      if (isConvertSpeed) {
-        downloadEntity.setConvertSpeed(CommonUtil.formatFileSize(speed) + "/s");
-      } else {
-        downloadEntity.setSpeed(speed);
-      }
-    }
-
-    /**
-     * 将任务状态发送给下载器
-     *
-     * @param state {@link DownloadSchedulers#START}
-     */
-    private void sendInState2Target(int state) {
-      if (outHandler.get() != null) {
-        outHandler.get().obtainMessage(state, task).sendToTarget();
-      }
-    }
-
-    private void sendIntent(String action, long location) {
-      downloadEntity.setDownloadComplete(action.equals(Aria.ACTION_COMPLETE));
-      downloadEntity.setCurrentProgress(location);
-      downloadEntity.update();
-      if (!isOpenBroadCast) return;
-      Intent intent = CommonUtil.createIntent(context.getPackageName(), action);
-      intent.putExtra(Aria.DOWNLOAD_ENTITY, downloadEntity);
-      if (location != -1) {
-        intent.putExtra(Aria.CURRENT_LOCATION, location);
-      }
-      context.sendBroadcast(intent);
-    }
-  }
 }
\ No newline at end of file
diff --git a/Aria/src/main/java/com/arialyy/aria/core/download/DownloadTaskEntity.java b/Aria/src/main/java/com/arialyy/aria/core/download/DownloadTaskEntity.java
index 75f6a17b..f5b9dbc0 100644
--- a/Aria/src/main/java/com/arialyy/aria/core/download/DownloadTaskEntity.java
+++ b/Aria/src/main/java/com/arialyy/aria/core/download/DownloadTaskEntity.java
@@ -16,22 +16,30 @@
 package com.arialyy.aria.core.download;
 
 import com.arialyy.aria.core.inf.AbsTaskEntity;
+import com.arialyy.aria.orm.OneToOne;
 
 /**
  * Created by lyy on 2017/1/23.
  * 下载任务实体
  */
-public class DownloadTaskEntity extends AbsTaskEntity {
+public class DownloadTaskEntity extends AbsTaskEntity {
 
-  public DownloadEntity downloadEntity;
+  @OneToOne(table = DownloadEntity.class, key = "downloadPath") public DownloadEntity entity;
 
-  public DownloadTaskEntity(){}
+  /**
+   * 所属的任务组组名，如果不属于任务组，则为null
+   */
+  public String groupName = "";
 
-  public DownloadTaskEntity(DownloadEntity downloadEntity) {
-    this.downloadEntity = downloadEntity;
+  /**
+   * 该任务是否属于任务组
+   */
+  public boolean isGroupTask = false;
+
+  public DownloadTaskEntity() {
   }
 
   @Override public DownloadEntity getEntity() {
-    return downloadEntity;
+    return entity;
   }
 }
diff --git a/Aria/src/main/java/com/arialyy/aria/core/download/DownloadUtil.java b/Aria/src/main/java/com/arialyy/aria/core/download/DownloadUtil.java
deleted file mode 100644
index 2f08ba86..00000000
--- a/Aria/src/main/java/com/arialyy/aria/core/download/DownloadUtil.java
+++ /dev/null
@@ -1,493 +0,0 @@
-/*
- * Copyright (C) 2016 AriaLyy(https://github.com/AriaLyy/Aria)
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-package com.arialyy.aria.core.download;
-
-import android.content.Context;
-import android.util.Log;
-import android.util.SparseArray;
-import com.arialyy.aria.core.AriaManager;
-import com.arialyy.aria.util.BufferedRandomAccessFile;
-import com.arialyy.aria.util.CheckUtil;
-import com.arialyy.aria.util.CommonUtil;
-import java.io.File;
-import java.io.IOException;
-import java.net.HttpURLConnection;
-import java.net.URL;
-import java.util.Properties;
-import java.util.Set;
-import java.util.concurrent.ExecutorService;
-import java.util.concurrent.Executors;
-
-/**
- * Created by lyy on 2015/8/25.
- * 下载工具类
- */
-class DownloadUtil implements IDownloadUtil, Runnable {
-  private static final String TAG = "DownloadUtil";
-  /**
-   * 线程数
-   */
-  private int THREAD_NUM;
-  /**
-   * 小于1m的文件不启用多线程
-   */
-  private static final long SUB_LEN = 1024 * 1024;
-  //下载监听
-  private IDownloadListener mListener;
-  private int mConnectTimeOut = 0; //连接超时时间
-  private boolean isNewTask = true;
-  private boolean isSupportBreakpoint = true;
-  private Context mContext;
-  private DownloadEntity mDownloadEntity;
-  private DownloadTaskEntity mDownloadTaskEntity;
-  private ExecutorService mFixedThreadPool;
-  private File mDownloadFile; //下载的文件
-  private File mConfigFile;//下载信息配置文件
-  private SparseArray mTask = new SparseArray<>();
-  private DownloadStateConstance CONSTANCE;
-
-  DownloadUtil(Context context, DownloadTaskEntity entity, IDownloadListener downloadListener) {
-    mDownloadEntity = entity.downloadEntity;
-    mContext = context.getApplicationContext();
-    mDownloadTaskEntity = entity;
-    mListener = downloadListener;
-    // 线程下载数改变后，新的下载才会生效
-    //mFixedThreadPool = Executors.newFixedThreadPool(Integer.MAX_VALUE);
-    CONSTANCE = new DownloadStateConstance();
-    init();
-  }
-
-  private void init() {
-    mConnectTimeOut = AriaManager.getInstance(mContext).getDownloadConfig().getConnectTimeOut();
-    mDownloadFile = new File(mDownloadTaskEntity.downloadEntity.getDownloadPath());
-    //读取已完成的线程数
-    mConfigFile = new File(mContext.getFilesDir().getPath()
-        + AriaManager.DOWNLOAD_TEMP_DIR
-        + mDownloadFile.getName()
-        + ".properties");
-    try {
-      if (!mConfigFile.exists()) { //记录文件被删除，则重新下载
-        isNewTask = true;
-        CommonUtil.createFile(mConfigFile.getPath());
-      } else {
-        isNewTask = !mDownloadFile.exists();
-      }
-    } catch (Exception e) {
-      e.printStackTrace();
-      failDownload("下载失败，记录文件被删除");
-    }
-  }
-
-  public IDownloadListener getListener() {
-    return mListener;
-  }
-
-  /**
-   * 获取当前下载位置
-   */
-  @Override public long getCurrentLocation() {
-    return CONSTANCE.CURRENT_LOCATION;
-  }
-
-  @Override public boolean isDownloading() {
-    return CONSTANCE.isDownloading;
-  }
-
-  public void setMaxSpeed(double maxSpeed) {
-    for (int i = 0; i < THREAD_NUM; i++) {
-      SingleThreadTask task = (SingleThreadTask) mTask.get(i);
-      if (task != null) {
-        task.setMaxSpeed(maxSpeed);
-      }
-    }
-  }
-
-  /**
-   * 取消下载
-   */
-  @Override public void cancelDownload() {
-    CONSTANCE.isCancel = true;
-    CONSTANCE.isDownloading = false;
-    if (mFixedThreadPool != null) {
-      mFixedThreadPool.shutdown();
-    }
-    for (int i = 0; i < THREAD_NUM; i++) {
-      SingleThreadTask task = (SingleThreadTask) mTask.get(i);
-      if (task != null) {
-        task.cancel();
-      }
-    }
-  }
-
-  /**
-   * 停止下载
-   */
-  @Override public void stopDownload() {
-    CONSTANCE.isStop = true;
-    CONSTANCE.isDownloading = false;
-    if (mFixedThreadPool != null) {
-      mFixedThreadPool.shutdown();
-    }
-    for (int i = 0; i < THREAD_NUM; i++) {
-      SingleThreadTask task = (SingleThreadTask) mTask.get(i);
-      if (task != null) {
-        task.stop();
-      }
-    }
-  }
-
-  /**
-   * 删除下载记录文件
-   */
-  @Override public void delConfigFile() {
-    if (mContext != null && mDownloadEntity != null) {
-      File dFile = new File(mDownloadEntity.getDownloadPath());
-      File config =
-          new File(mContext.getFilesDir().getPath() + "/temp/" + dFile.getName() + ".properties");
-      if (config.exists()) {
-        config.delete();
-      }
-    }
-  }
-
-  /**
-   * 删除temp文件
-   */
-  @Override public void delTempFile() {
-    if (mContext != null && mDownloadEntity != null) {
-      File dFile = new File(mDownloadEntity.getDownloadPath());
-      if (dFile.exists()) {
-        dFile.delete();
-      }
-    }
-  }
-
-  /**
-   * 多线程断点续传下载文件，开始下载
-   */
-  @Override public void startDownload() {
-    CONSTANCE.cleanState();
-    mListener.onPre();
-    new Thread(this).start();
-  }
-
-  @Override public void resumeDownload() {
-    startDownload();
-  }
-
-  private void failDownload(String msg) {
-    Log.e(TAG, msg);
-    CONSTANCE.isDownloading = false;
-    stopDownload();
-    mListener.onFail();
-  }
-
-  @Override public void run() {
-    try {
-      URL url = new URL(mDownloadEntity.getDownloadUrl());
-      HttpURLConnection conn = ConnectionHelp.handleConnection(url);
-      conn = ConnectionHelp.setConnectParam(mDownloadTaskEntity, conn);
-      conn.setRequestProperty("Range", "bytes=" + 0 + "-");
-      conn.setConnectTimeout(mConnectTimeOut);
-      conn.connect();
-      handleConnect(conn);
-    } catch (IOException e) {
-      failDownload("下载失败【downloadUrl:"
-          + mDownloadEntity.getDownloadUrl()
-          + "】\n【filePath:"
-          + mDownloadFile.getPath()
-          + "】"
-          + CommonUtil.getPrintException(e));
-    }
-  }
-
-  /**
-   * 处理状态吗
-   */
-  private void handleConnect(HttpURLConnection conn) throws IOException {
-    int len = conn.getContentLength();
-    //if (len < 0) {  //网络被劫持时会出现这个问题
-    //  failDownload("下载失败，网络被劫持");
-    //  return;
-    //}
-    int code = conn.getResponseCode();
-    //https://zh.wikipedia.org/wiki/HTTP%E7%8A%B6%E6%80%81%E7%A0%81
-    //206支持断点
-    if (code == HttpURLConnection.HTTP_PARTIAL) {
-      if (!checkLen(len)) return;
-      isSupportBreakpoint = true;
-      mListener.supportBreakpoint(true);
-      handleBreakpoint(conn);
-    } else if (code == HttpURLConnection.HTTP_OK) {
-      //在conn.setRequestProperty("Range", "bytes=" + 0 + "-");下，200为不支持断点状态
-      if (!checkLen(len)) return;
-      isSupportBreakpoint = false;
-      mListener.supportBreakpoint(false);
-      Log.w(TAG, "该下载链接不支持断点下载");
-      handleBreakpoint(conn);
-    } else if (code == HttpURLConnection.HTTP_NOT_FOUND) {
-      Log.w(TAG, "任务【" + mDownloadEntity.getDownloadUrl() + "】下载失败，错误码：404");
-      mListener.onCancel();
-    } else if (code == HttpURLConnection.HTTP_MOVED_TEMP
-        || code == HttpURLConnection.HTTP_MOVED_PERM
-        || code == HttpURLConnection.HTTP_SEE_OTHER) {
-      handle302Turn(conn);
-    } else {
-      failDownload("任务【" + mDownloadEntity.getDownloadUrl() + "】下载失败，错误码：" + code);
-    }
-  }
-
-  /**
-   * 检查长度是否合法
-   *
-   * @param len 从服务器获取的文件长度
-   * @return true, 合法
-   */
-  private boolean checkLen(long len) {
-    if (len < 0) {
-      failDownload("任务【" + mDownloadEntity.getDownloadUrl() + "】下载失败，文件长度小于0");
-      return false;
-    }
-    return true;
-  }
-
-  /**
-   * 处理30x跳转
-   */
-  private void handle302Turn(HttpURLConnection conn) throws IOException {
-    String newUrl = conn.getHeaderField(mDownloadTaskEntity.redirectUrlKey);
-    Log.d(TAG, "30x跳转，新url为【" + newUrl + "】");
-    mDownloadEntity.setRedirect(true);
-    mDownloadEntity.setRedirectUrl(newUrl);
-    mDownloadEntity.update();
-    String cookies = conn.getHeaderField("Set-Cookie");
-    conn = (HttpURLConnection) new URL(newUrl).openConnection();
-    conn = ConnectionHelp.setConnectParam(mDownloadTaskEntity, conn);
-    conn.setRequestProperty("Cookie", cookies);
-    conn.setRequestProperty("Range", "bytes=" + 0 + "-");
-    conn.setConnectTimeout(mConnectTimeOut);
-    conn.connect();
-
-    handleConnect(conn);
-  }
-
-  /**
-   * 处理断点
-   */
-  private void handleBreakpoint(HttpURLConnection conn) throws IOException {
-    //不支持断点只能单线程下载
-    if (!isSupportBreakpoint) {
-      handleNoSupportBreakpointDownload(conn);
-      return;
-    }
-    int fileLength = conn.getContentLength();
-    Properties pro = createConfigFile(fileLength);
-    int blockSize = fileLength / THREAD_NUM;
-    int[] recordL = new int[THREAD_NUM];
-    int rl = 0;
-    for (int i = 0; i < THREAD_NUM; i++) {
-      recordL[i] = -1;
-    }
-    for (int i = 0; i < THREAD_NUM; i++) {
-      long startL = i * blockSize, endL = (i + 1) * blockSize;
-      Object state = pro.getProperty(mDownloadFile.getName() + "_state_" + i);
-      if (state != null && Integer.parseInt(state + "") == 1) {  //该线程已经完成
-        if (resumeRecordLocation(i, startL, endL)) return;
-        continue;
-      }
-      //分配下载位置
-      Object record = pro.getProperty(mDownloadFile.getName() + "_record_" + i);
-      //如果有记录，则恢复下载
-      if (!isNewTask && record != null && Long.parseLong(record + "") > 0) {
-        Long r = Long.parseLong(record + "");
-        CONSTANCE.CURRENT_LOCATION += r - startL;
-        Log.d(TAG, "任务【" + mDownloadEntity.getFileName() + "】线程__" + i + "__恢复下载");
-        mListener.onChildResume(r);
-        startL = r;
-        recordL[rl] = i;
-        rl++;
-      } else {
-        handleNewTask(fileLength);
-      }
-      if (isNewTask) {
-        recordL[rl] = i;
-        rl++;
-      }
-      if (i == (THREAD_NUM - 1)) {
-        //最后一个线程的结束位置即为文件的总长度
-        endL = fileLength;
-      }
-      addSingleTask(i, startL, endL, fileLength);
-    }
-    startSingleTask(recordL);
-  }
-
-  /**
-   * 处理不支持断点的下载
-   */
-  private void handleNoSupportBreakpointDownload(HttpURLConnection conn) {
-    ConfigEntity entity = new ConfigEntity();
-    long len = conn.getContentLength();
-    entity.FILE_SIZE = len;
-    entity.DOWNLOAD_URL = mDownloadEntity.isRedirect() ? mDownloadEntity.getRedirectUrl()
-        : mDownloadEntity.getDownloadUrl();
-    entity.TEMP_FILE = mDownloadFile;
-    entity.THREAD_ID = 0;
-    entity.START_LOCATION = 0;
-    entity.END_LOCATION = entity.FILE_SIZE;
-    entity.CONFIG_FILE_PATH = mConfigFile.getPath();
-    entity.isSupportBreakpoint = isSupportBreakpoint;
-    entity.DOWNLOAD_TASK_ENTITY = mDownloadTaskEntity;
-    THREAD_NUM = 1;
-    CONSTANCE.THREAD_NUM = THREAD_NUM;
-    SingleThreadTask task = new SingleThreadTask(CONSTANCE, mListener, entity);
-    mTask.put(0, task);
-    mFixedThreadPool.execute(task);
-    mListener.onPostPre(len);
-    mListener.onStart(0);
-  }
-
-  /**
-   * 创建配置文件
-   */
-  private Properties createConfigFile(long fileLength) throws IOException {
-    Properties pro = null;
-    //必须建一个文件
-    CommonUtil.createFile(mDownloadFile.getPath());
-    BufferedRandomAccessFile file =
-        new BufferedRandomAccessFile(new File(mDownloadFile.getPath()), "rwd", 8192);
-    //设置文件长度
-    file.setLength(fileLength);
-    mListener.onPostPre(fileLength);
-    //分配每条线程的下载区间
-    pro = CommonUtil.loadConfig(mConfigFile);
-    if (pro.isEmpty()) {
-      handleNewTask(fileLength);
-    } else {
-      Set keys = pro.keySet();
-      int num = 0;
-      for (Object key : keys) {
-        if (String.valueOf(key).contains("_record_")) {
-          num++;
-        }
-      }
-      if (num == 0) {
-        handleNewTask(fileLength);
-        return pro;
-      }
-      THREAD_NUM = num;
-      for (int i = 0; i < THREAD_NUM; i++) {
-        if (pro.getProperty(mDownloadFile.getName() + "_record_" + i) == null) {
-          Object state = pro.getProperty(mDownloadFile.getName() + "_state_" + i);
-          if (state != null && Integer.parseInt(state + "") == 1) {
-            continue;
-          }
-          handleNewTask(fileLength);
-          return pro;
-        }
-      }
-      isNewTask = false;
-    }
-    return pro;
-  }
-
-  /**
-   * 处理新任务
-   */
-  private void handleNewTask(long fileLength) {
-    isNewTask = true;
-    THREAD_NUM = fileLength < SUB_LEN ? 1
-        : AriaManager.getInstance(mContext).getDownloadConfig().getThreadNum();
-  }
-
-  /**
-   * 恢复记录地址
-   *
-   * @return true 表示下载完成
-   */
-  private boolean resumeRecordLocation(int i, long startL, long endL) {
-    CONSTANCE.CURRENT_LOCATION += endL - startL;
-    Log.d(TAG, "++++++++++ 线程_" + i + "_已经下载完成 ++++++++++");
-    CONSTANCE.COMPLETE_THREAD_NUM++;
-    CONSTANCE.STOP_NUM++;
-    CONSTANCE.CANCEL_NUM++;
-    if (CONSTANCE.isComplete()) {
-      if (mConfigFile.exists()) {
-        mConfigFile.delete();
-      }
-      mListener.onComplete();
-      CONSTANCE.isDownloading = false;
-      return true;
-    }
-    return false;
-  }
-
-  /**
-   * 创建单线程任务
-   */
-  private void addSingleTask(int i, long startL, long endL, long fileLength) {
-    ConfigEntity entity = new ConfigEntity();
-    entity.FILE_SIZE = fileLength;
-    entity.DOWNLOAD_URL = mDownloadEntity.isRedirect() ? mDownloadEntity.getRedirectUrl()
-        : mDownloadEntity.getDownloadUrl();
-    entity.TEMP_FILE = mDownloadFile;
-    entity.THREAD_ID = i;
-    entity.START_LOCATION = startL;
-    entity.END_LOCATION = endL;
-    entity.CONFIG_FILE_PATH = mConfigFile.getPath();
-    entity.isSupportBreakpoint = isSupportBreakpoint;
-    entity.DOWNLOAD_TASK_ENTITY = mDownloadTaskEntity;
-    CONSTANCE.THREAD_NUM = THREAD_NUM;
-    SingleThreadTask task = new SingleThreadTask(CONSTANCE, mListener, entity);
-    mTask.put(i, task);
-  }
-
-  /**
-   * 启动单线程下载任务
-   */
-  private void startSingleTask(int[] recordL) {
-    if (CONSTANCE.CURRENT_LOCATION > 0) {
-      mListener.onResume(CONSTANCE.CURRENT_LOCATION);
-    } else {
-      mListener.onStart(CONSTANCE.CURRENT_LOCATION);
-    }
-    mFixedThreadPool = Executors.newFixedThreadPool(recordL.length);
-    for (int l : recordL) {
-      if (l == -1) continue;
-      Runnable task = mTask.get(l);
-      if (task != null) {
-        mFixedThreadPool.execute(task);
-      }
-    }
-  }
-
-  /**
-   * 子线程下载信息类
-   */
-  final static class ConfigEntity {
-    //文件大小
-    int THREAD_ID;
-    long FILE_SIZE;
-    long START_LOCATION;
-    long END_LOCATION;
-    File TEMP_FILE;
-    String DOWNLOAD_URL;
-    String CONFIG_FILE_PATH;
-    DownloadTaskEntity DOWNLOAD_TASK_ENTITY;
-    boolean isSupportBreakpoint = true;
-  }
-}
\ No newline at end of file
diff --git a/Aria/src/main/java/com/arialyy/aria/core/download/downloader/ChildThreadConfigEntity.java b/Aria/src/main/java/com/arialyy/aria/core/download/downloader/ChildThreadConfigEntity.java
new file mode 100644
index 00000000..94b865ea
--- /dev/null
+++ b/Aria/src/main/java/com/arialyy/aria/core/download/downloader/ChildThreadConfigEntity.java
@@ -0,0 +1,24 @@
+package com.arialyy.aria.core.download.downloader;
+
+import com.arialyy.aria.core.download.DownloadTaskEntity;
+import java.io.File;
+
+/**
+ * 子线程下载信息类
+ */
+final class ChildThreadConfigEntity {
+  //线程Id
+  int THREAD_ID;
+  //下载文件大小
+  long FILE_SIZE;
+  //子线程启动下载位置
+  long START_LOCATION;
+  //子线程结束下载位置
+  long END_LOCATION;
+  //下载路径
+  File TEMP_FILE;
+  String DOWNLOAD_URL;
+  String CONFIG_FILE_PATH;
+  DownloadTaskEntity DOWNLOAD_TASK_ENTITY;
+  boolean IS_SUPPORT_BREAK_POINT = true;
+}
\ No newline at end of file
diff --git a/Aria/src/main/java/com/arialyy/aria/core/download/ConnectionHelp.java b/Aria/src/main/java/com/arialyy/aria/core/download/downloader/ConnectionHelp.java
similarity index 97%
rename from Aria/src/main/java/com/arialyy/aria/core/download/ConnectionHelp.java
rename to Aria/src/main/java/com/arialyy/aria/core/download/downloader/ConnectionHelp.java
index e05f0aee..028db87c 100644
--- a/Aria/src/main/java/com/arialyy/aria/core/download/ConnectionHelp.java
+++ b/Aria/src/main/java/com/arialyy/aria/core/download/downloader/ConnectionHelp.java
@@ -13,8 +13,9 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package com.arialyy.aria.core.download;
+package com.arialyy.aria.core.download.downloader;
 
+import com.arialyy.aria.core.download.DownloadTaskEntity;
 import com.arialyy.aria.util.SSLContextUtil;
 import java.io.IOException;
 import java.net.HttpURLConnection;
diff --git a/Aria/src/main/java/com/arialyy/aria/core/download/downloader/DownloadGroupUtil.java b/Aria/src/main/java/com/arialyy/aria/core/download/downloader/DownloadGroupUtil.java
new file mode 100644
index 00000000..d8a44363
--- /dev/null
+++ b/Aria/src/main/java/com/arialyy/aria/core/download/downloader/DownloadGroupUtil.java
@@ -0,0 +1,403 @@
+/*
+ * Copyright (C) 2016 AriaLyy(https://github.com/AriaLyy/Aria)
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package com.arialyy.aria.core.download.downloader;
+
+import android.util.SparseArray;
+import com.arialyy.aria.core.download.DownloadEntity;
+import com.arialyy.aria.core.download.DownloadGroupTaskEntity;
+import com.arialyy.aria.core.download.DownloadTaskEntity;
+import com.arialyy.aria.core.inf.IEntity;
+import com.arialyy.aria.orm.DbEntity;
+import com.arialyy.aria.util.CommonUtil;
+import java.io.File;
+import java.util.HashMap;
+import java.util.List;
+import java.util.Map;
+import java.util.Set;
+import java.util.Timer;
+import java.util.TimerTask;
+import java.util.concurrent.ExecutorService;
+import java.util.concurrent.Executors;
+
+/**
+ * Created by AriaL on 2017/6/30.
+ * 任务组下载工具
+ */
+public class DownloadGroupUtil implements IDownloadUtil {
+  private final String TAG = "DownloadGroupUtil";
+  /**
+   * 任务组所有任务总大小
+   */
+  private long mTotalSize = 0;
+  private long mCurrentLocation = 0;
+  private ExecutorService mInfoPool;
+  private ExecutorService mExePool;
+  private IDownloadListener mListener;
+  private DownloadGroupTaskEntity mTaskEntity;
+  private boolean isRunning = true;
+  private Timer mTimer;
+  /**
+   * 初始化完成的任务书数
+   */
+  private int mInitNum = 0;
+  /**
+   * 初始化失败的任务数
+   */
+  private int mInitFailNum = 0;
+  /**
+   * 保存所有没有下载完成的任务，key为下载地址
+   */
+  private Map mExeMap = new HashMap<>();
+
+  /**
+   * 下载失败的映射表，key为下载地址
+   */
+  private Map mFailMap = new HashMap<>();
+
+  /**
+   * 下载器映射表，key为下载地址
+   */
+  private Map mDownloaderMap = new HashMap<>();
+
+  /**
+   * 文件信息回调组
+   */
+  private SparseArray mFileInfoCallbacks = new SparseArray<>();
+  /**
+   * 该任务组对应的所有任务
+   */
+  private Map mTasksMap = new HashMap<>();
+  //已经完成的任务数
+  private int mCompleteNum = 0;
+  //失败的任务数
+  private int mFailNum = 0;
+  //实际的下载任务数
+  private int mActualTaskNum = 0;
+
+  public DownloadGroupUtil(IDownloadListener listener, DownloadGroupTaskEntity taskEntity) {
+    mListener = listener;
+    mTaskEntity = taskEntity;
+    mInfoPool = Executors.newCachedThreadPool();
+    mExePool = Executors.newFixedThreadPool(Runtime.getRuntime().availableProcessors());
+    mActualTaskNum = mTaskEntity.entity.getSubTask().size();
+    List tasks =
+        DbEntity.findDatas(DownloadTaskEntity.class, "groupName=?", mTaskEntity.key);
+    if (tasks != null && !tasks.isEmpty()) {
+      for (DownloadTaskEntity te : tasks) {
+        mTasksMap.put(te.getEntity().getDownloadUrl(), te);
+      }
+    }
+    for (DownloadEntity entity : mTaskEntity.entity.getSubTask()) {
+      File file = new File(entity.getDownloadPath());
+      if (entity.isComplete() && file.exists()) {
+        mTotalSize += entity.getFileSize();
+        mCompleteNum++;
+        mInitNum++;
+        mCurrentLocation += entity.getFileSize();
+      } else {
+        mExeMap.put(entity.getDownloadUrl(), createChildDownloadTask(entity));
+        mCurrentLocation += entity.getCurrentProgress();
+      }
+    }
+  }
+
+  @Override public long getFileSize() {
+    return mTotalSize;
+  }
+
+  @Override public long getCurrentLocation() {
+    return mCurrentLocation;
+  }
+
+  @Override public boolean isDownloading() {
+    return isRunning;
+  }
+
+  @Override public void cancelDownload() {
+    isRunning = false;
+    closeTimer();
+    mListener.onCancel();
+    if (!mInfoPool.isShutdown()) {
+      mInfoPool.shutdown();
+    }
+    if (!mExePool.isShutdown()) {
+      mExePool.shutdown();
+    }
+
+    Set keys = mDownloaderMap.keySet();
+    for (String key : keys) {
+      Downloader dt = mDownloaderMap.get(key);
+      if (dt != null) {
+        dt.cancelDownload();
+      }
+    }
+    delDownloadInfo();
+    mTaskEntity.deleteData();
+  }
+
+  /**
+   * 删除所有子任务的下载信息
+   */
+  private void delDownloadInfo() {
+    List tasks =
+        DbEntity.findDatas(DownloadTaskEntity.class, "groupName=?", mTaskEntity.key);
+    if (tasks == null || tasks.isEmpty()) return;
+    for (DownloadTaskEntity taskEntity : tasks) {
+      CommonUtil.delDownloadTaskConfig(taskEntity.removeFile, taskEntity);
+    }
+  }
+
+  @Override public void stopDownload() {
+    isRunning = false;
+    closeTimer();
+    mListener.onStop(mCurrentLocation);
+    if (!mInfoPool.isShutdown()) {
+      mInfoPool.shutdown();
+    }
+    if (!mExePool.isShutdown()) {
+      mExePool.shutdown();
+    }
+
+    Set keys = mDownloaderMap.keySet();
+    for (String key : keys) {
+      Downloader dt = mDownloaderMap.get(key);
+      if (dt != null) {
+        dt.stopDownload();
+      }
+    }
+  }
+
+  @Override public void startDownload() {
+    isRunning = true;
+    Set keys = mExeMap.keySet();
+    mListener.onPre();
+    for (String key : keys) {
+      DownloadTaskEntity taskEntity = mExeMap.get(key);
+      if (taskEntity != null) {
+        mInfoPool.execute(createFileInfoThread(taskEntity));
+      }
+    }
+  }
+
+  @Override public void resumeDownload() {
+    startDownload();
+    mListener.onResume(mCurrentLocation);
+  }
+
+  /**
+   * 创建文件信息获取线程
+   */
+  private FileInfoThread createFileInfoThread(DownloadTaskEntity taskEntity) {
+    FileInfoThread.OnFileInfoCallback callback = mFileInfoCallbacks.get(taskEntity.hashCode());
+
+    if (callback == null) {
+      callback = new FileInfoThread.OnFileInfoCallback() {
+        int failNum = 0;
+
+        @Override public void onComplete(String url, int code) {
+          DownloadTaskEntity te = mExeMap.get(url);
+          if (te != null) {
+            mTotalSize += te.getEntity().getFileSize();
+            startChildDownload(te);
+          }
+          mInitNum++;
+          if (mInitNum + mInitFailNum == mTaskEntity.getEntity().getSubTask().size()) {
+            startRunningFlow();
+          }
+        }
+
+        @Override public void onFail(String url, String errorMsg) {
+          DownloadTaskEntity te = mExeMap.get(url);
+          if (te != null) {
+            mFailMap.put(url, te);
+            mFileInfoCallbacks.put(te.hashCode(), this);
+          }
+          //404链接不重试下载
+          if (failNum < 10 && !errorMsg.contains("错误码：404") && !errorMsg.contains(
+              "UnknownHostException")) {
+            mInfoPool.execute(createFileInfoThread(te));
+          } else {
+            mInitFailNum++;
+            mActualTaskNum--;
+            if (mActualTaskNum < 0) mActualTaskNum = 0;
+          }
+          failNum++;
+          if (mInitNum + mInitFailNum == mTaskEntity.getEntity().getSubTask().size()) {
+            startRunningFlow();
+          }
+        }
+      };
+    }
+    return new FileInfoThread(taskEntity, callback);
+  }
+
+  private void closeTimer() {
+    if (mTimer != null) {
+      mTimer.purge();
+      mTimer.cancel();
+    }
+  }
+
+  /**
+   * 开始进度流程
+   */
+  private void startRunningFlow() {
+    closeTimer();
+    mListener.onPostPre(mTotalSize);
+    mListener.onStart(mCurrentLocation);
+    mTimer = new Timer(true);
+    mTimer.schedule(new TimerTask() {
+      @Override public void run() {
+        if (mCurrentLocation >= 0) {
+          mListener.onProgress(mCurrentLocation);
+        }
+      }
+    }, 0, 1000);
+  }
+
+  /**
+   * 启动子任务下载器
+   */
+  private void startChildDownload(DownloadTaskEntity taskEntity) {
+    ChildDownloadListener listener = new ChildDownloadListener(taskEntity);
+    Downloader dt = new Downloader(listener, taskEntity);
+    mDownloaderMap.put(taskEntity.getEntity().getDownloadUrl(), dt);
+    if (mExePool.isShutdown()) return;
+    mExePool.execute(dt);
+  }
+
+  /**
+   * 创建子任务下载信息
+   */
+  private DownloadTaskEntity createChildDownloadTask(DownloadEntity entity) {
+    DownloadTaskEntity taskEntity = mTasksMap.get(entity.getDownloadUrl());
+    if (taskEntity != null) {
+      taskEntity.entity = entity;
+      return taskEntity;
+    }
+    taskEntity = new DownloadTaskEntity();
+    taskEntity.entity = entity;
+    taskEntity.headers = mTaskEntity.headers;
+    taskEntity.requestEnum = mTaskEntity.requestEnum;
+    taskEntity.redirectUrlKey = mTaskEntity.redirectUrlKey;
+    taskEntity.removeFile = mTaskEntity.removeFile;
+    taskEntity.groupName = mTaskEntity.key;
+    taskEntity.isGroupTask = true;
+    taskEntity.key = entity.getDownloadPath();
+    taskEntity.save();
+    return taskEntity;
+  }
+
+  /**
+   * 子任务事件监听
+   */
+  private class ChildDownloadListener extends DownloadListener {
+
+    DownloadTaskEntity taskEntity;
+    DownloadEntity entity;
+
+    long lastLen = 0;
+
+    ChildDownloadListener(DownloadTaskEntity entity) {
+      this.taskEntity = entity;
+      this.entity = taskEntity.getEntity();
+    }
+
+    @Override public void onPre() {
+      saveData(IEntity.STATE_PRE, -1);
+    }
+
+    @Override public void onPostPre(long fileSize) {
+      entity.setFileSize(fileSize);
+      entity.setConvertFileSize(CommonUtil.formatFileSize(fileSize));
+      saveData(IEntity.STATE_POST_PRE, -1);
+    }
+
+    @Override public void onResume(long resumeLocation) {
+      saveData(IEntity.STATE_POST_PRE, IEntity.STATE_RUNNING);
+      lastLen = resumeLocation;
+    }
+
+    @Override public void onStart(long startLocation) {
+      saveData(IEntity.STATE_POST_PRE, IEntity.STATE_RUNNING);
+      lastLen = startLocation;
+    }
+
+    @Override public void onProgress(long currentLocation) {
+      long speed = currentLocation - lastLen;
+      mCurrentLocation += speed;
+      lastLen = currentLocation;
+      entity.setCurrentProgress(currentLocation);
+      handleSpeed(speed);
+    }
+
+    @Override public void onStop(long stopLocation) {
+      saveData(IEntity.STATE_STOP, stopLocation);
+      handleSpeed(0);
+    }
+
+    @Override public void onCancel() {
+      saveData(IEntity.STATE_CANCEL, -1);
+      handleSpeed(0);
+    }
+
+    @Override public void onComplete() {
+      saveData(IEntity.STATE_COMPLETE, entity.getFileSize());
+      mCompleteNum++;
+      if (mCompleteNum + mFailNum >= mActualTaskNum) {
+        closeTimer();
+        mListener.onComplete();
+      }
+      handleSpeed(0);
+    }
+
+    @Override public void onFail() {
+      entity.setFailNum(entity.getFailNum() + 1);
+      saveData(IEntity.STATE_FAIL, -1);
+      handleSpeed(0);
+      reTry();
+    }
+
+    /**
+     * 失败后重试下载，如果失败次数超过5次，不再重试
+     */
+    private void reTry() {
+      if (entity.getFailNum() < 5) {
+        Downloader dt = mDownloaderMap.get(entity.getDownloadUrl());
+        dt.startDownload();
+      } else {
+        mFailNum++;
+      }
+    }
+
+    private void handleSpeed(long speed) {
+      entity.setSpeed(speed);
+      entity.setConvertSpeed(speed <= 0 ? "" : CommonUtil.formatFileSize(speed) + "/s");
+    }
+
+    private void saveData(int state, long location) {
+      entity.setState(state);
+      entity.setComplete(state == IEntity.STATE_COMPLETE);
+      if (entity.isComplete()) {
+        entity.setCompleteTime(System.currentTimeMillis());
+        entity.setCurrentProgress(entity.getFileSize());
+      } else {
+        entity.setCurrentProgress(location);
+      }
+      entity.update();
+    }
+  }
+}
diff --git a/Aria/src/main/java/com/arialyy/aria/core/download/DownloadListener.java b/Aria/src/main/java/com/arialyy/aria/core/download/downloader/DownloadListener.java
similarity index 92%
rename from Aria/src/main/java/com/arialyy/aria/core/download/DownloadListener.java
rename to Aria/src/main/java/com/arialyy/aria/core/download/downloader/DownloadListener.java
index a2cbf237..f8d2349e 100644
--- a/Aria/src/main/java/com/arialyy/aria/core/download/DownloadListener.java
+++ b/Aria/src/main/java/com/arialyy/aria/core/download/downloader/DownloadListener.java
@@ -14,12 +14,13 @@
  * limitations under the License.
  */
 
-package com.arialyy.aria.core.download;
+package com.arialyy.aria.core.download.downloader;
+
 
 /**
  * @author lyy
  */
-class DownloadListener implements IDownloadListener {
+public class DownloadListener implements IDownloadListener {
 
   @Override public void onResume(long resumeLocation) {
 
diff --git a/Aria/src/main/java/com/arialyy/aria/core/download/downloader/Downloader.java b/Aria/src/main/java/com/arialyy/aria/core/download/downloader/Downloader.java
new file mode 100644
index 00000000..a7fa8721
--- /dev/null
+++ b/Aria/src/main/java/com/arialyy/aria/core/download/downloader/Downloader.java
@@ -0,0 +1,420 @@
+/*
+ * Copyright (C) 2016 AriaLyy(https://github.com/AriaLyy/Aria)
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package com.arialyy.aria.core.download.downloader;
+
+import android.content.Context;
+import android.util.Log;
+import android.util.SparseArray;
+import com.arialyy.aria.core.AriaManager;
+import com.arialyy.aria.core.download.DownloadEntity;
+import com.arialyy.aria.core.download.DownloadTaskEntity;
+import com.arialyy.aria.orm.DbEntity;
+import com.arialyy.aria.util.BufferedRandomAccessFile;
+import com.arialyy.aria.util.CommonUtil;
+import java.io.File;
+import java.io.IOException;
+import java.util.Properties;
+import java.util.Set;
+import java.util.Timer;
+import java.util.TimerTask;
+import java.util.concurrent.ExecutorService;
+import java.util.concurrent.Executors;
+
+/**
+ * Created by AriaL on 2017/7/1.
+ * 文件下载器
+ */
+class Downloader implements Runnable, IDownloadUtil {
+  private final String TAG = "Downloader";
+  private IDownloadListener mListener;
+  private DownloadTaskEntity mTaskEntity;
+  private DownloadEntity mEntity;
+  private ExecutorService mFixedThreadPool;
+  private File mConfigFile;//下载信息配置文件
+  private Context mContext;
+  private File mTempFile; //下载的文件
+  private boolean isNewTask = true;
+  private int mThreadNum, mRealThreadNum;
+  private StateConstance mConstance;
+  private SparseArray mTask = new SparseArray<>();
+
+  /**
+   * 小于1m的文件不启用多线程
+   */
+  private static final long SUB_LEN = 1024 * 1024;
+  private Timer mTimer;
+
+  Downloader(IDownloadListener listener, DownloadTaskEntity taskEntity) {
+    mListener = listener;
+    mTaskEntity = taskEntity;
+    mEntity = mTaskEntity.getEntity();
+    mContext = AriaManager.APP;
+    mConstance = new StateConstance();
+  }
+
+  void setMaxSpeed(double maxSpeed) {
+    for (int i = 0; i < mThreadNum; i++) {
+      SingleThreadTask task = (SingleThreadTask) mTask.get(i);
+      if (task != null) {
+        task.setMaxSpeed(maxSpeed);
+      }
+    }
+  }
+
+  public StateConstance getConstance() {
+    return mConstance;
+  }
+
+  @Override public void run() {
+    startFlow();
+  }
+
+  /**
+   * 开始下载流程
+   */
+  private void startFlow() {
+    checkTask();
+    mListener.onPostPre(mEntity.getFileSize());
+    mConstance.cleanState();
+    mConstance.isDownloading = true;
+    if (!mTaskEntity.isSupportBP) {
+      mThreadNum = 1;
+      mConstance.THREAD_NUM = mThreadNum;
+      handleNoSupportBreakpointDownload();
+    } else {
+      mThreadNum = isNewTask ? (mEntity.getFileSize() <= SUB_LEN ? 1
+          : AriaManager.getInstance(mContext).getDownloadConfig().getThreadNum()) : mRealThreadNum;
+      mConstance.THREAD_NUM = mThreadNum;
+      mFixedThreadPool = Executors.newFixedThreadPool(mThreadNum);
+      handleBreakpoint();
+    }
+    startTimer();
+  }
+
+  /**
+   * 启动进度获取定时器
+   */
+  private void startTimer() {
+    mTimer = new Timer(true);
+    mTimer.schedule(new TimerTask() {
+      @Override public void run() {
+        if (mConstance.isComplete()) {
+          closeTimer();
+        } else if (mConstance.CURRENT_LOCATION >= 0) {
+          mListener.onProgress(mConstance.CURRENT_LOCATION);
+        }
+      }
+    }, 0, 1000);
+  }
+
+  private void closeTimer() {
+    if (mTimer != null) {
+      mTimer.purge();
+      mTimer.cancel();
+    }
+  }
+
+  @Override public long getFileSize() {
+    return mEntity.getFileSize();
+  }
+
+  /**
+   * 获取当前下载位置
+   */
+  @Override public long getCurrentLocation() {
+    return mConstance.CURRENT_LOCATION;
+  }
+
+  @Override public boolean isDownloading() {
+    return mConstance.isDownloading;
+  }
+
+  @Override public void cancelDownload() {
+    closeTimer();
+    mConstance.isCancel = true;
+    mConstance.isDownloading = false;
+    if (mFixedThreadPool != null) {
+      mFixedThreadPool.shutdown();
+    }
+    for (int i = 0; i < mThreadNum; i++) {
+      SingleThreadTask task = (SingleThreadTask) mTask.get(i);
+      if (task != null) {
+        task.cancel();
+      }
+    }
+    CommonUtil.delDownloadTaskConfig(mTaskEntity.removeFile, mTaskEntity);
+  }
+
+  @Override public void stopDownload() {
+    closeTimer();
+    if (mConstance.isComplete()) return;
+    mConstance.isStop = true;
+    mConstance.isDownloading = false;
+    if (mFixedThreadPool != null) {
+      mFixedThreadPool.shutdown();
+    }
+    for (int i = 0; i < mThreadNum; i++) {
+      SingleThreadTask task = (SingleThreadTask) mTask.get(i);
+      if (task != null) {
+        task.stop();
+      }
+    }
+  }
+
+  /**
+   * 直接调用的时候会自动启动线程执行
+   */
+  @Override public void startDownload() {
+    new Thread(this).start();
+  }
+
+  @Override public void resumeDownload() {
+    startDownload();
+  }
+
+  /**
+   * 返回该下载器的
+   */
+  public IDownloadListener getListener() {
+    return mListener;
+  }
+
+  /**
+   * 检查任务是否是新任务，新任务条件：
+   * 1、文件不存在
+   * 2、下载记录文件不存在
+   * 3、下载记录文件缺失或不匹配
+   * 4、数据库记录不存在
+   * 5、不支持断点，则是新任务
+   */
+  private void checkTask() {
+    if (!mTaskEntity.isSupportBP) {
+      isNewTask = true;
+      return;
+    }
+    mConfigFile = new File(mContext.getFilesDir().getPath()
+        + AriaManager.DOWNLOAD_TEMP_DIR
+        + mEntity.getFileName()
+        + ".properties");
+    mTempFile = new File(mEntity.getDownloadPath());
+    if (!mConfigFile.exists()) { //记录文件被删除，则重新下载
+      isNewTask = true;
+      CommonUtil.createFile(mConfigFile.getPath());
+    } else if (!mTempFile.exists()) {
+      isNewTask = true;
+    } else if (DbEntity.findFirst(DownloadEntity.class, "downloadUrl=?", mEntity.getDownloadUrl())
+        == null) {
+      isNewTask = true;
+    } else {
+      isNewTask = checkConfigFile();
+    }
+  }
+
+  /**
+   * 检查记录文件，如果是新任务返回{@code true}，否则返回{@code false}
+   */
+  private boolean checkConfigFile() {
+    Properties pro = CommonUtil.loadConfig(mConfigFile);
+    if (pro.isEmpty()) {
+      return true;
+    }
+    Set keys = pro.keySet();
+    int num = 0;
+    for (Object key : keys) {
+      if (String.valueOf(key).contains("_record_")) {
+        num++;
+      }
+    }
+    if (num == 0) {
+      return true;
+    }
+    mRealThreadNum = num;
+    for (int i = 0; i < mRealThreadNum; i++) {
+      if (pro.getProperty(mTempFile.getName() + "_record_" + i) == null) {
+        Object state = pro.getProperty(mTempFile.getName() + "_state_" + i);
+        if (state != null && Integer.parseInt(state + "") == 1) {
+          continue;
+        }
+        return true;
+      }
+    }
+    return false;
+  }
+
+  /**
+   * 恢复记录地址
+   *
+   * @return true 表示下载完成
+   */
+  private boolean resumeRecordLocation(int i, long startL, long endL) {
+    mConstance.CURRENT_LOCATION += endL - startL;
+    Log.d(TAG, "++++++++++ 线程_" + i + "_已经下载完成 ++++++++++");
+    mConstance.COMPLETE_THREAD_NUM++;
+    mConstance.STOP_NUM++;
+    mConstance.CANCEL_NUM++;
+    if (mConstance.isComplete()) {
+      if (mConfigFile.exists()) {
+        mConfigFile.delete();
+      }
+      mListener.onComplete();
+      mConstance.isDownloading = false;
+      return true;
+    }
+    return false;
+  }
+
+  /**
+   * 创建单线程任务
+   */
+  private void addSingleTask(int i, long startL, long endL, long fileLength) {
+    ChildThreadConfigEntity entity = new ChildThreadConfigEntity();
+    entity.FILE_SIZE = fileLength;
+    entity.DOWNLOAD_URL =
+        mEntity.isRedirect() ? mEntity.getRedirectUrl() : mEntity.getDownloadUrl();
+    entity.TEMP_FILE = mTempFile;
+    entity.THREAD_ID = i;
+    entity.START_LOCATION = startL;
+    entity.END_LOCATION = endL;
+    entity.CONFIG_FILE_PATH = mConfigFile.getPath();
+    entity.IS_SUPPORT_BREAK_POINT = mTaskEntity.isSupportBP;
+    entity.DOWNLOAD_TASK_ENTITY = mTaskEntity;
+    SingleThreadTask task = new SingleThreadTask(mConstance, mListener, entity);
+    mTask.put(i, task);
+  }
+
+  /**
+   * 启动单线程下载任务
+   */
+  private void startSingleTask(int[] recordL) {
+    if (mConstance.CURRENT_LOCATION > 0) {
+      mListener.onResume(mConstance.CURRENT_LOCATION);
+    } else {
+      mListener.onStart(mConstance.CURRENT_LOCATION);
+    }
+    mFixedThreadPool = Executors.newFixedThreadPool(recordL.length);
+    for (int l : recordL) {
+      if (l == -1) continue;
+      Runnable task = mTask.get(l);
+      if (task != null) {
+        mFixedThreadPool.execute(task);
+      }
+    }
+  }
+
+  /**
+   * 处理断点
+   */
+  private void handleBreakpoint() {
+    long fileLength = mEntity.getFileSize();
+    Properties pro = CommonUtil.loadConfig(mConfigFile);
+    int blockSize = (int) (fileLength / mThreadNum);
+    int[] recordL = new int[mThreadNum];
+    for (int i = 0; i < mThreadNum; i++) {
+      recordL[i] = -1;
+    }
+    int rl = 0;
+    if (isNewTask) {
+      createNewFile(fileLength);
+    }
+    for (int i = 0; i < mThreadNum; i++) {
+      long startL = i * blockSize, endL = (i + 1) * blockSize;
+      Object state = pro.getProperty(mTempFile.getName() + "_state_" + i);
+      if (state != null && Integer.parseInt(state + "") == 1) {  //该线程已经完成
+        if (resumeRecordLocation(i, startL, endL)) return;
+        continue;
+      }
+      //分配下载位置
+      Object record = pro.getProperty(mTempFile.getName() + "_record_" + i);
+      //如果有记录，则恢复下载
+      if (!isNewTask && record != null && Long.parseLong(record + "") >= 0) {
+        Long r = Long.parseLong(record + "");
+        mConstance.CURRENT_LOCATION += r - startL;
+        Log.d(TAG, "任务【" + mEntity.getFileName() + "】线程__" + i + "__恢复下载");
+        mListener.onChildResume(r);
+        startL = r;
+        recordL[rl] = i;
+        rl++;
+      } else {
+        recordL[rl] = i;
+        rl++;
+      }
+      if (i == (mThreadNum - 1)) {
+        //最后一个线程的结束位置即为文件的总长度
+        endL = fileLength;
+      }
+      addSingleTask(i, startL, endL, fileLength);
+    }
+    startSingleTask(recordL);
+  }
+
+  /**
+   * 创建新的下载文件
+   */
+  private void createNewFile(long fileLength) {
+    CommonUtil.createFile(mTempFile.getPath());
+    BufferedRandomAccessFile file = null;
+    try {
+      file = new BufferedRandomAccessFile(new File(mTempFile.getPath()), "rwd", 8192);
+      //设置文件长度
+      file.setLength(fileLength);
+    } catch (IOException e) {
+      failDownload("下载失败【downloadUrl:"
+          + mEntity.getDownloadUrl()
+          + "】\n【filePath:"
+          + mEntity.getDownloadPath()
+          + "】\n"
+          + CommonUtil.getPrintException(e));
+    } finally {
+      if (file != null) {
+        try {
+          file.close();
+        } catch (IOException e) {
+          e.printStackTrace();
+        }
+      }
+    }
+  }
+
+  /**
+   * 处理不支持断点的下载
+   */
+  private void handleNoSupportBreakpointDownload() {
+    ChildThreadConfigEntity entity = new ChildThreadConfigEntity();
+    long len = mEntity.getFileSize();
+    entity.FILE_SIZE = len;
+    entity.DOWNLOAD_URL =
+        mEntity.isRedirect() ? mEntity.getRedirectUrl() : mEntity.getDownloadUrl();
+    entity.TEMP_FILE = mTempFile;
+    entity.THREAD_ID = 0;
+    entity.START_LOCATION = 0;
+    entity.END_LOCATION = entity.FILE_SIZE;
+    entity.CONFIG_FILE_PATH = mConfigFile.getPath();
+    entity.IS_SUPPORT_BREAK_POINT = mTaskEntity.isSupportBP;
+    entity.DOWNLOAD_TASK_ENTITY = mTaskEntity;
+    SingleThreadTask task = new SingleThreadTask(mConstance, mListener, entity);
+    mTask.put(0, task);
+    mFixedThreadPool.execute(task);
+    mListener.onPostPre(len);
+    mListener.onStart(0);
+  }
+
+  private void failDownload(String errorMsg) {
+    closeTimer();
+    Log.e(TAG, errorMsg);
+    mConstance.isDownloading = false;
+    mListener.onFail();
+  }
+}
diff --git a/Aria/src/main/java/com/arialyy/aria/core/download/downloader/FileInfoThread.java b/Aria/src/main/java/com/arialyy/aria/core/download/downloader/FileInfoThread.java
new file mode 100644
index 00000000..90bb447c
--- /dev/null
+++ b/Aria/src/main/java/com/arialyy/aria/core/download/downloader/FileInfoThread.java
@@ -0,0 +1,179 @@
+/*
+ * Copyright (C) 2016 AriaLyy(https://github.com/AriaLyy/Aria)
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package com.arialyy.aria.core.download.downloader;
+
+import android.text.TextUtils;
+import android.util.Log;
+import com.arialyy.aria.core.AriaManager;
+import com.arialyy.aria.core.download.DownloadEntity;
+import com.arialyy.aria.core.download.DownloadTaskEntity;
+import com.arialyy.aria.util.CommonUtil;
+import java.io.IOException;
+import java.net.HttpURLConnection;
+import java.net.URL;
+import java.net.URLDecoder;
+
+/**
+ * 下载文件信息获取
+ */
+class FileInfoThread implements Runnable {
+  private final String TAG = "FileInfoThread";
+  private DownloadEntity mEntity;
+  private DownloadTaskEntity mTaskEntity;
+  private int mConnectTimeOut;
+  private OnFileInfoCallback onFileInfoListener;
+
+  interface OnFileInfoCallback {
+    /**
+     * 处理完成
+     *
+     * @param code 状态码
+     */
+    void onComplete(String url, int code);
+
+    /**
+     * 请求失败
+     *
+     * @param errorMsg 错误信息
+     */
+    void onFail(String url, String errorMsg);
+  }
+
+  FileInfoThread(DownloadTaskEntity taskEntity, OnFileInfoCallback callback) {
+    this.mTaskEntity = taskEntity;
+    mEntity = taskEntity.getEntity();
+    mConnectTimeOut =
+        AriaManager.getInstance(AriaManager.APP).getDownloadConfig().getConnectTimeOut();
+    onFileInfoListener = callback;
+  }
+
+  @Override public void run() {
+    HttpURLConnection conn = null;
+    try {
+      URL url = new URL(mEntity.getDownloadUrl());
+      conn = ConnectionHelp.handleConnection(url);
+      conn = ConnectionHelp.setConnectParam(mTaskEntity, conn);
+      conn.setRequestProperty("Range", "bytes=" + 0 + "-");
+      conn.setConnectTimeout(mConnectTimeOut);
+      conn.connect();
+      handleConnect(conn);
+    } catch (IOException e) {
+      failDownload("下载失败【downloadUrl:"
+          + mEntity.getDownloadUrl()
+          + "】\n【filePath:"
+          + mEntity.getDownloadPath()
+          + "】\n"
+          + CommonUtil.getPrintException(e));
+    } finally {
+      if (conn != null) {
+        conn.disconnect();
+      }
+    }
+  }
+
+  private void handleConnect(HttpURLConnection conn) throws IOException {
+    int len = conn.getContentLength();
+    int code = conn.getResponseCode();
+    boolean isComplete = false;
+    if (TextUtils.isEmpty(mEntity.getMd5Code())) {
+      String md5Code = conn.getHeaderField(mTaskEntity.md5Key);
+      mEntity.setMd5Code(md5Code);
+    }
+    String disposition = conn.getHeaderField(mTaskEntity.dispositionKey);
+    if (!TextUtils.isEmpty(disposition)) {
+      mEntity.setDisposition(disposition);
+      if (disposition.contains(mTaskEntity.dispositionFileKey)) {
+        String[] infos = disposition.split("=");
+        mEntity.setServerFileName(URLDecoder.decode(infos[1], "utf-8"));
+      }
+    }
+
+    mTaskEntity.code = code;
+    if (code == HttpURLConnection.HTTP_PARTIAL) {
+      if (!checkLen(len)) return;
+      mEntity.setFileSize(len);
+      mTaskEntity.isSupportBP = true;
+      isComplete = true;
+    } else if (code == HttpURLConnection.HTTP_OK) {
+      if (!checkLen(len)) return;
+      mEntity.setFileSize(len);
+      mTaskEntity.isSupportBP = false;
+      isComplete = true;
+    } else if (code == HttpURLConnection.HTTP_NOT_FOUND) {
+      failDownload("任务【" + mEntity.getDownloadUrl() + "】下载失败，错误码：404");
+    } else if (code == HttpURLConnection.HTTP_MOVED_TEMP
+        || code == HttpURLConnection.HTTP_MOVED_PERM
+        || code == HttpURLConnection.HTTP_SEE_OTHER) {
+      mTaskEntity.redirectUrl = conn.getHeaderField(mTaskEntity.redirectUrlKey);
+      mEntity.setRedirect(true);
+      mEntity.setRedirectUrl(mTaskEntity.redirectUrl);
+      handle302Turn(conn);
+    } else {
+      failDownload("任务【" + mEntity.getDownloadUrl() + "】下载失败，错误码：" + code);
+    }
+    if (isComplete) {
+      if (onFileInfoListener != null) {
+        onFileInfoListener.onComplete(mEntity.getDownloadUrl(), code);
+      }
+      mEntity.update();
+      mTaskEntity.update();
+    }
+  }
+
+  /**
+   * 处理30x跳转
+   */
+  private void handle302Turn(HttpURLConnection conn) throws IOException {
+    String newUrl = conn.getHeaderField(mTaskEntity.redirectUrlKey);
+    Log.d(TAG, "30x跳转，location【 " + mTaskEntity.redirectUrlKey + "】" + "新url为【" + newUrl + "】");
+    if (TextUtils.isEmpty(newUrl) || newUrl.equalsIgnoreCase("null")) {
+      if (onFileInfoListener != null) {
+        onFileInfoListener.onFail(mEntity.getDownloadUrl(), "获取重定向链接失败");
+      }
+      return;
+    }
+    String cookies = conn.getHeaderField("Set-Cookie");
+    conn = (HttpURLConnection) new URL(newUrl).openConnection();
+    conn = ConnectionHelp.setConnectParam(mTaskEntity, conn);
+    conn.setRequestProperty("Cookie", cookies);
+    conn.setRequestProperty("Range", "bytes=" + 0 + "-");
+    conn.setConnectTimeout(mConnectTimeOut);
+    conn.connect();
+    handleConnect(conn);
+    conn.disconnect();
+  }
+
+  /**
+   * 检查长度是否合法
+   *
+   * @param len 从服务器获取的文件长度
+   * @return true, 合法
+   */
+  private boolean checkLen(long len) {
+    if (len < 0) {
+      failDownload("任务【" + mEntity.getDownloadUrl() + "】下载失败，文件长度小于0");
+      return false;
+    }
+    return true;
+  }
+
+  private void failDownload(String errorMsg) {
+    Log.e(TAG, errorMsg);
+    if (onFileInfoListener != null) {
+      onFileInfoListener.onFail(mEntity.getDownloadUrl(), errorMsg);
+    }
+  }
+}
\ No newline at end of file
diff --git a/Aria/src/main/java/com/arialyy/aria/core/download/downloader/IDownloadListener.java b/Aria/src/main/java/com/arialyy/aria/core/download/downloader/IDownloadListener.java
new file mode 100644
index 00000000..aa6f3e2d
--- /dev/null
+++ b/Aria/src/main/java/com/arialyy/aria/core/download/downloader/IDownloadListener.java
@@ -0,0 +1,42 @@
+/*
+ * Copyright (C) 2016 AriaLyy(https://github.com/AriaLyy/Aria)
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.arialyy.aria.core.download.downloader;
+
+import com.arialyy.aria.core.inf.IEventListener;
+
+/**
+ * 下载监听
+ */
+interface IDownloadListener extends IEventListener {
+
+  /**
+   * 支持断点回调
+   *
+   * @param support true,支持；false 不支持
+   */
+  void supportBreakpoint(boolean support);
+
+  /**
+   * 单一线程的结束位置
+   */
+  void onChildComplete(long finishLocation);
+
+  /**
+   * 子程恢复下载的位置
+   */
+  void onChildResume(long resumeLocation);
+}
\ No newline at end of file
diff --git a/Aria/src/main/java/com/arialyy/aria/core/download/IDownloadUtil.java b/Aria/src/main/java/com/arialyy/aria/core/download/downloader/IDownloadUtil.java
similarity index 67%
rename from Aria/src/main/java/com/arialyy/aria/core/download/IDownloadUtil.java
rename to Aria/src/main/java/com/arialyy/aria/core/download/downloader/IDownloadUtil.java
index 471d0048..5d2c7456 100644
--- a/Aria/src/main/java/com/arialyy/aria/core/download/IDownloadUtil.java
+++ b/Aria/src/main/java/com/arialyy/aria/core/download/downloader/IDownloadUtil.java
@@ -14,58 +14,48 @@
  * limitations under the License.
  */
 
-package com.arialyy.aria.core.download;
+package com.arialyy.aria.core.download.downloader;
 
 /**
  * Created by lyy on 2016/10/31.
  * 抽象的下载接口
  */
-interface IDownloadUtil {
+public interface IDownloadUtil {
+
+  /**
+   * 获取文件大小
+   */
+  long getFileSize();
 
   /**
    * 获取当前下载位置
    */
-  public long getCurrentLocation();
+  long getCurrentLocation();
 
   /**
    * 是否正在下载
    *
    * @return true, 正在下载
    */
-  public boolean isDownloading();
+  boolean isDownloading();
 
   /**
    * 取消下载
    */
-  public void cancelDownload();
+  void cancelDownload();
 
   /**
    * 停止下载
    */
-  public void stopDownload();
+  void stopDownload();
 
   /**
    * 开始下载
    */
-  public void startDownload();
+  void startDownload();
 
   /**
    * 从上次断点恢复下载
    */
-  public void resumeDownload();
-
-  /**
-   * 删除下载记录文件
-   */
-  public void delConfigFile();
-
-  /**
-   * 删除temp文件
-   */
-  public void delTempFile();
-
-  /**
-   * 设置最大下载速度
-   */
-  public void setMaxSpeed(double maxSpeed);
+  void resumeDownload();
 }
\ No newline at end of file
diff --git a/Aria/src/main/java/com/arialyy/aria/core/download/downloader/SimpleDownloadUtil.java b/Aria/src/main/java/com/arialyy/aria/core/download/downloader/SimpleDownloadUtil.java
new file mode 100644
index 00000000..ac15d85d
--- /dev/null
+++ b/Aria/src/main/java/com/arialyy/aria/core/download/downloader/SimpleDownloadUtil.java
@@ -0,0 +1,104 @@
+/*
+ * Copyright (C) 2016 AriaLyy(https://github.com/AriaLyy/Aria)
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.arialyy.aria.core.download.downloader;
+
+import android.text.TextUtils;
+import android.util.Log;
+import com.arialyy.aria.core.download.DownloadTaskEntity;
+
+/**
+ * Created by lyy on 2015/8/25.
+ * 简单的下载工具
+ */
+public class SimpleDownloadUtil implements IDownloadUtil, Runnable {
+  private static final String TAG = "SimpleDownloadUtil";
+  private IDownloadListener mListener;
+  private Downloader mDT;
+  private DownloadTaskEntity mTaskEntity;
+
+  public SimpleDownloadUtil(DownloadTaskEntity entity, IDownloadListener downloadListener) {
+    mTaskEntity = entity;
+    mListener = downloadListener;
+    mDT = new Downloader(downloadListener, entity);
+  }
+
+  @Override public long getFileSize() {
+    return mDT.getFileSize();
+  }
+
+  /**
+   * 获取当前下载位置
+   */
+  @Override public long getCurrentLocation() {
+    return mDT.getCurrentLocation();
+  }
+
+  @Override public boolean isDownloading() {
+    return mDT.isDownloading();
+  }
+
+  /**
+   * 取消下载
+   */
+  @Override public void cancelDownload() {
+    mDT.cancelDownload();
+  }
+
+  /**
+   * 停止下载
+   */
+  @Override public void stopDownload() {
+    mDT.stopDownload();
+  }
+
+  /**
+   * 多线程断点续传下载文件，开始下载
+   */
+  @Override public void startDownload() {
+    mListener.onPre();
+    new Thread(this).start();
+  }
+
+  @Override public void resumeDownload() {
+    startDownload();
+  }
+
+  public void setMaxSpeed(double maxSpeed) {
+    mDT.setMaxSpeed(maxSpeed);
+  }
+
+  private void failDownload(String msg) {
+    Log.e(TAG, msg);
+    mListener.onFail();
+  }
+
+  @Override public void run() {
+    if (TextUtils.isEmpty(mTaskEntity.redirectUrl)) {
+      new Thread(new FileInfoThread(mTaskEntity, new FileInfoThread.OnFileInfoCallback() {
+        @Override public void onComplete(String url, int code) {
+          mDT.startDownload();
+        }
+
+        @Override public void onFail(String url, String errorMsg) {
+          failDownload(errorMsg);
+        }
+      })).start();
+    } else {
+      new Downloader(mListener, mTaskEntity).startDownload();
+    }
+  }
+}
\ No newline at end of file
diff --git a/Aria/src/main/java/com/arialyy/aria/core/download/SingleThreadTask.java b/Aria/src/main/java/com/arialyy/aria/core/download/downloader/SingleThreadTask.java
similarity index 89%
rename from Aria/src/main/java/com/arialyy/aria/core/download/SingleThreadTask.java
rename to Aria/src/main/java/com/arialyy/aria/core/download/downloader/SingleThreadTask.java
index b6233744..8efe4eb3 100644
--- a/Aria/src/main/java/com/arialyy/aria/core/download/SingleThreadTask.java
+++ b/Aria/src/main/java/com/arialyy/aria/core/download/downloader/SingleThreadTask.java
@@ -13,7 +13,7 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package com.arialyy.aria.core.download;
+package com.arialyy.aria.core.download.downloader;
 
 import android.os.Build;
 import android.text.TextUtils;
@@ -28,9 +28,7 @@ import java.math.BigDecimal;
 import java.net.HttpURLConnection;
 import java.net.MalformedURLException;
 import java.net.URL;
-import java.util.HashSet;
 import java.util.Properties;
-import java.util.Set;
 
 /**
  * Created by lyy on 2017/1/18.
@@ -38,23 +36,23 @@ import java.util.Set;
  */
 final class SingleThreadTask implements Runnable {
   private static final String TAG = "SingleThreadTask";
-  private DownloadUtil.ConfigEntity mConfigEntity;
+  private ChildThreadConfigEntity mConfigEntity;
   private String mConfigFPath;
   private long mChildCurrentLocation = 0;
   private int mBufSize;
   private IDownloadListener mListener;
-  private DownloadStateConstance CONSTANCE;
+  private StateConstance CONSTANCE;
   private long mSleepTime = 0;
 
-  SingleThreadTask(DownloadStateConstance constance, IDownloadListener listener,
-      DownloadUtil.ConfigEntity downloadInfo) {
+  SingleThreadTask(StateConstance constance, IDownloadListener listener,
+      ChildThreadConfigEntity downloadInfo) {
     AriaManager manager = AriaManager.getInstance(AriaManager.APP);
     CONSTANCE = constance;
     CONSTANCE.CONNECT_TIME_OUT = manager.getDownloadConfig().getConnectTimeOut();
     CONSTANCE.READ_TIME_OUT = manager.getDownloadConfig().getIOTimeOut();
     mListener = listener;
     this.mConfigEntity = downloadInfo;
-    if (mConfigEntity.isSupportBreakpoint) {
+    if (mConfigEntity.IS_SUPPORT_BREAK_POINT) {
       mConfigFPath = downloadInfo.CONFIG_FILE_PATH;
     }
     mBufSize = manager.getDownloadConfig().getBuffSize();
@@ -76,12 +74,13 @@ final class SingleThreadTask implements Runnable {
   }
 
   @Override public void run() {
-    HttpURLConnection conn;
-    InputStream is;
+    HttpURLConnection conn = null;
+    InputStream is = null;
+    BufferedRandomAccessFile file = null;
     try {
       URL url = new URL(mConfigEntity.DOWNLOAD_URL);
       conn = ConnectionHelp.handleConnection(url);
-      if (mConfigEntity.isSupportBreakpoint) {
+      if (mConfigEntity.IS_SUPPORT_BREAK_POINT) {
         Log.d(TAG, "任务【"
             + mConfigEntity.TEMP_FILE.getName()
             + "】线程__"
@@ -102,8 +101,7 @@ final class SingleThreadTask implements Runnable {
       conn.setReadTimeout(CONSTANCE.READ_TIME_OUT);  //设置读取流的等待时间,必须设置该参数
       is = conn.getInputStream();
       //创建可设置位置的文件
-      BufferedRandomAccessFile file =
-          new BufferedRandomAccessFile(mConfigEntity.TEMP_FILE, "rwd", mBufSize);
+      file = new BufferedRandomAccessFile(mConfigEntity.TEMP_FILE, "rwd", mBufSize);
       //设置每条线程写入文件的位置
       file.seek(mConfigEntity.START_LOCATION);
       byte[] buffer = new byte[mBufSize];
@@ -121,10 +119,6 @@ final class SingleThreadTask implements Runnable {
         file.write(buffer, 0, len);
         progress(len);
       }
-      file.close();
-      //close 为阻塞的，需要使用线程池来处理
-      is.close();
-      conn.disconnect();
       if (CONSTANCE.isCancel) {
         return;
       }
@@ -133,7 +127,7 @@ final class SingleThreadTask implements Runnable {
         return;
       }
       //支持断点的处理
-      if (mConfigEntity.isSupportBreakpoint) {
+      if (mConfigEntity.IS_SUPPORT_BREAK_POINT) {
         Log.i(TAG, "任务【"
             + mConfigEntity.TEMP_FILE.getName()
             + "】线程__"
@@ -161,6 +155,20 @@ final class SingleThreadTask implements Runnable {
       failDownload(mChildCurrentLocation, "下载失败【" + mConfigEntity.DOWNLOAD_URL + "】", e);
     } catch (Exception e) {
       failDownload(mChildCurrentLocation, "获取流失败", e);
+    } finally {
+      try {
+        if (file != null) {
+          file.close();
+        }
+        if (is != null) {
+          is.close();
+        }
+        if (conn != null) {
+          conn.disconnect();
+        }
+      } catch (IOException e) {
+        e.printStackTrace();
+      }
     }
   }
 
@@ -170,7 +178,7 @@ final class SingleThreadTask implements Runnable {
   protected void stop() {
     synchronized (AriaManager.LOCK) {
       try {
-        if (mConfigEntity.isSupportBreakpoint) {
+        if (mConfigEntity.IS_SUPPORT_BREAK_POINT) {
           CONSTANCE.STOP_NUM++;
           Log.d(TAG, "任务【"
               + mConfigEntity.TEMP_FILE.getName()
@@ -202,7 +210,6 @@ final class SingleThreadTask implements Runnable {
     synchronized (AriaManager.LOCK) {
       mChildCurrentLocation += len;
       CONSTANCE.CURRENT_LOCATION += len;
-      mListener.onProgress(CONSTANCE.CURRENT_LOCATION);
     }
   }
 
@@ -211,7 +218,7 @@ final class SingleThreadTask implements Runnable {
    */
   protected void cancel() {
     synchronized (AriaManager.LOCK) {
-      if (mConfigEntity.isSupportBreakpoint) {
+      if (mConfigEntity.IS_SUPPORT_BREAK_POINT) {
         CONSTANCE.CANCEL_NUM++;
         Log.d(TAG, "任务【"
             + mConfigEntity.TEMP_FILE.getName()
@@ -250,7 +257,7 @@ final class SingleThreadTask implements Runnable {
         if (ex != null) {
           Log.e(TAG, msg + "\n" + CommonUtil.getPrintException(ex));
         }
-        if (mConfigEntity.isSupportBreakpoint) {
+        if (mConfigEntity.IS_SUPPORT_BREAK_POINT) {
           writeConfig(false, currentLocation);
           if (CONSTANCE.isFail()) {
             Log.e(TAG, "任务【" + mConfigEntity.TEMP_FILE.getName() + "】下载失败");
diff --git a/Aria/src/main/java/com/arialyy/aria/core/download/DownloadStateConstance.java b/Aria/src/main/java/com/arialyy/aria/core/download/downloader/StateConstance.java
similarity index 90%
rename from Aria/src/main/java/com/arialyy/aria/core/download/DownloadStateConstance.java
rename to Aria/src/main/java/com/arialyy/aria/core/download/downloader/StateConstance.java
index 8c815ee9..323f65ff 100644
--- a/Aria/src/main/java/com/arialyy/aria/core/download/DownloadStateConstance.java
+++ b/Aria/src/main/java/com/arialyy/aria/core/download/downloader/StateConstance.java
@@ -13,13 +13,13 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package com.arialyy.aria.core.download;
+package com.arialyy.aria.core.download.downloader;
 
 /**
  * Created by lyy on 2017/1/18.
  * 下载状态常量
  */
-final class DownloadStateConstance {
+final class StateConstance {
   int CANCEL_NUM = 0;
   int STOP_NUM = 0;
   int FAIL_NUM = 0;
@@ -32,7 +32,7 @@ final class DownloadStateConstance {
   boolean isCancel = false;
   boolean isStop = false;
 
-  DownloadStateConstance() {
+  StateConstance() {
   }
 
   void cleanState() {
@@ -45,10 +45,6 @@ final class DownloadStateConstance {
     FAIL_NUM = 0;
   }
 
-  void setThreadNum(int threadNum) {
-    THREAD_NUM = threadNum;
-  }
-
   /**
    * 所有子线程是否都已经停止下载
    */
diff --git a/Aria/src/main/java/com/arialyy/aria/core/inf/AbsEntity.java b/Aria/src/main/java/com/arialyy/aria/core/inf/AbsEntity.java
index e6b4d2b9..eb611d5f 100644
--- a/Aria/src/main/java/com/arialyy/aria/core/inf/AbsEntity.java
+++ b/Aria/src/main/java/com/arialyy/aria/core/inf/AbsEntity.java
@@ -21,7 +21,7 @@ import com.arialyy.aria.orm.DbEntity;
 import com.arialyy.aria.orm.Ignore;
 
 /**
- * Created by AriaL on 2017/6/3.
+ * Created by AriaL on 2017/6/29.
  */
 public abstract class AbsEntity extends DbEntity implements IEntity, Parcelable {
   /**
@@ -31,11 +31,12 @@ public abstract class AbsEntity extends DbEntity implements IEntity, Parcelable
   /**
    * 单位转换后的速度
    */
-  @Ignore private String convertSpeed = "0b/s";
+  @Ignore private String convertSpeed = "";
   /**
    * 下载失败计数，每次开始都重置为0
    */
   @Ignore private int failNum = 0;
+
   /**
    * 扩展字段
    */
@@ -44,6 +45,11 @@ public abstract class AbsEntity extends DbEntity implements IEntity, Parcelable
    * 文件大小
    */
   private long fileSize = 1;
+  /**
+   * 转换后的文件大小
+   */
+  private String convertFileSize = "";
+
   private int state = STATE_WAIT;
   /**
    * 当前下载进度
@@ -53,10 +59,32 @@ public abstract class AbsEntity extends DbEntity implements IEntity, Parcelable
    * 完成时间
    */
   private long completeTime;
-  /**
-   * 文件名
-   */
-  private String fileName = "";
+
+  private boolean isComplete = false;
+
+  public boolean isComplete() {
+    return isComplete;
+  }
+
+  public void setComplete(boolean complete) {
+    isComplete = complete;
+  }
+
+  public String getConvertFileSize() {
+    return convertFileSize;
+  }
+
+  public void setConvertFileSize(String convertFileSize) {
+    this.convertFileSize = convertFileSize;
+  }
+
+  public int getFailNum() {
+    return failNum;
+  }
+
+  public void setFailNum(int failNum) {
+    this.failNum = failNum;
+  }
 
   public long getSpeed() {
     return speed;
@@ -74,14 +102,6 @@ public abstract class AbsEntity extends DbEntity implements IEntity, Parcelable
     this.convertSpeed = convertSpeed;
   }
 
-  public int getFailNum() {
-    return failNum;
-  }
-
-  public void setFailNum(int failNum) {
-    this.failNum = failNum;
-  }
-
   public String getStr() {
     return str;
   }
@@ -122,13 +142,10 @@ public abstract class AbsEntity extends DbEntity implements IEntity, Parcelable
     this.completeTime = completeTime;
   }
 
-  public String getFileName() {
-    return fileName;
-  }
-
-  public void setFileName(String fileName) {
-    this.fileName = fileName;
-  }
+  /**
+   * 实体唯一标识符
+   */
+  public abstract String getKey();
 
   public AbsEntity() {
   }
@@ -143,10 +160,11 @@ public abstract class AbsEntity extends DbEntity implements IEntity, Parcelable
     dest.writeInt(this.failNum);
     dest.writeString(this.str);
     dest.writeLong(this.fileSize);
+    dest.writeString(this.convertFileSize);
     dest.writeInt(this.state);
     dest.writeLong(this.currentProgress);
     dest.writeLong(this.completeTime);
-    dest.writeString(this.fileName);
+    dest.writeByte(this.isComplete ? (byte) 1 : (byte) 0);
   }
 
   protected AbsEntity(Parcel in) {
@@ -155,9 +173,10 @@ public abstract class AbsEntity extends DbEntity implements IEntity, Parcelable
     this.failNum = in.readInt();
     this.str = in.readString();
     this.fileSize = in.readLong();
+    this.convertFileSize = in.readString();
     this.state = in.readInt();
     this.currentProgress = in.readLong();
     this.completeTime = in.readLong();
-    this.fileName = in.readString();
+    this.isComplete = in.readByte() != 0;
   }
 }
diff --git a/Aria/src/main/java/com/arialyy/aria/core/inf/AbsGroupEntity.java b/Aria/src/main/java/com/arialyy/aria/core/inf/AbsGroupEntity.java
new file mode 100644
index 00000000..35ef1d0d
--- /dev/null
+++ b/Aria/src/main/java/com/arialyy/aria/core/inf/AbsGroupEntity.java
@@ -0,0 +1,70 @@
+/*
+ * Copyright (C) 2016 AriaLyy(https://github.com/AriaLyy/Aria)
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package com.arialyy.aria.core.inf;
+
+import android.os.Parcel;
+import android.os.Parcelable;
+import com.arialyy.aria.orm.Primary;
+
+/**
+ * Created by AriaL on 2017/6/3.
+ */
+public abstract class AbsGroupEntity extends AbsEntity implements Parcelable {
+  /**
+   * 组名，组名为任务地址相加的urlMd5
+   */
+  @Primary protected String groupName = "";
+
+  /**
+   * 任务组别名
+   */
+  private String alias = "";
+
+  public String getGroupName() {
+    return groupName;
+  }
+
+  public String getAlias() {
+    return alias;
+  }
+
+  @Override public String getKey() {
+    return groupName;
+  }
+
+  public void setAlias(String alias) {
+    this.alias = alias;
+  }
+
+  public AbsGroupEntity() {
+  }
+
+  @Override public int describeContents() {
+    return 0;
+  }
+
+  @Override public void writeToParcel(Parcel dest, int flags) {
+    super.writeToParcel(dest, flags);
+    dest.writeString(this.groupName);
+    dest.writeString(this.alias);
+  }
+
+  protected AbsGroupEntity(Parcel in) {
+    super(in);
+    this.groupName = in.readString();
+    this.alias = in.readString();
+  }
+}
diff --git a/Aria/src/main/java/com/arialyy/aria/core/inf/AbsGroupTarget.java b/Aria/src/main/java/com/arialyy/aria/core/inf/AbsGroupTarget.java
new file mode 100644
index 00000000..c201a010
--- /dev/null
+++ b/Aria/src/main/java/com/arialyy/aria/core/inf/AbsGroupTarget.java
@@ -0,0 +1,26 @@
+/*
+ * Copyright (C) 2016 AriaLyy(https://github.com/AriaLyy/Aria)
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package com.arialyy.aria.core.inf;
+
+/**
+ * Created by AriaL on 2017/6/29.
+ * 任务组超类
+ */
+public abstract class AbsGroupTarget
+    extends AbsTarget {
+
+
+}
diff --git a/Aria/src/main/java/com/arialyy/aria/core/inf/AbsGroupTask.java b/Aria/src/main/java/com/arialyy/aria/core/inf/AbsGroupTask.java
new file mode 100644
index 00000000..83bc8993
--- /dev/null
+++ b/Aria/src/main/java/com/arialyy/aria/core/inf/AbsGroupTask.java
@@ -0,0 +1,31 @@
+/*
+ * Copyright (C) 2016 AriaLyy(https://github.com/AriaLyy/Aria)
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package com.arialyy.aria.core.inf;
+
+
+/**
+ * Created by AriaL on 2017/6/29.
+ */
+public abstract class AbsGroupTask
+    extends AbsTask {
+
+  protected TASK_ENTITY mTaskEntity;
+
+
+  @Override public String getKey() {
+    return mEntity.getGroupName();
+  }
+}
diff --git a/Aria/src/main/java/com/arialyy/aria/core/inf/AbsNormalEntity.java b/Aria/src/main/java/com/arialyy/aria/core/inf/AbsNormalEntity.java
new file mode 100644
index 00000000..d1425f7f
--- /dev/null
+++ b/Aria/src/main/java/com/arialyy/aria/core/inf/AbsNormalEntity.java
@@ -0,0 +1,73 @@
+/*
+ * Copyright (C) 2016 AriaLyy(https://github.com/AriaLyy/Aria)
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package com.arialyy.aria.core.inf;
+
+import android.os.Parcel;
+import android.os.Parcelable;
+import com.arialyy.aria.orm.DbEntity;
+import com.arialyy.aria.orm.Ignore;
+
+/**
+ * Created by AriaL on 2017/6/3.
+ */
+public abstract class AbsNormalEntity extends AbsEntity implements Parcelable {
+
+  /**
+   * 文件名
+   */
+  private String fileName = "";
+
+  /**
+   * 是否是任务组里面的下载实体
+   */
+  private boolean isGroupChild = false;
+
+
+  public boolean isGroupChild() {
+    return isGroupChild;
+  }
+
+  public void setGroupChild(boolean groupChild) {
+    isGroupChild = groupChild;
+  }
+
+  public String getFileName() {
+    return fileName;
+  }
+
+  public void setFileName(String fileName) {
+    this.fileName = fileName;
+  }
+
+  public AbsNormalEntity() {
+  }
+
+  @Override public int describeContents() {
+    return 0;
+  }
+
+  @Override public void writeToParcel(Parcel dest, int flags) {
+    super.writeToParcel(dest, flags);
+    dest.writeString(this.fileName);
+    dest.writeByte(this.isGroupChild ? (byte) 1 : (byte) 0);
+  }
+
+  protected AbsNormalEntity(Parcel in) {
+    super(in);
+    this.fileName = in.readString();
+    this.isGroupChild = in.readByte() != 0;
+  }
+}
diff --git a/Aria/src/main/java/com/arialyy/aria/core/inf/AbsNormalTarget.java b/Aria/src/main/java/com/arialyy/aria/core/inf/AbsNormalTarget.java
new file mode 100644
index 00000000..31de1c13
--- /dev/null
+++ b/Aria/src/main/java/com/arialyy/aria/core/inf/AbsNormalTarget.java
@@ -0,0 +1,106 @@
+/*
+ * Copyright (C) 2016 AriaLyy(https://github.com/AriaLyy/Aria)
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package com.arialyy.aria.core.inf;
+
+import android.text.TextUtils;
+import android.util.Log;
+import com.arialyy.aria.core.AriaManager;
+import com.arialyy.aria.core.command.normal.NormalCmdFactory;
+import com.arialyy.aria.util.CommonUtil;
+
+/**
+ * Created by lyy on 2017/2/28.
+ */
+public abstract class AbsNormalTarget
+    extends AbsTarget {
+
+  /**
+   * 将任务设置为最高优先级任务，最高优先级任务有以下特点：
+   * 1、在下载队列中，有且只有一个最高优先级任务
+   * 2、最高优先级任务会一直存在，直到用户手动暂停或任务完成
+   * 3、任务调度器不会暂停最高优先级任务
+   * 4、用户手动暂停或任务完成后，第二次重新执行该任务，该命令将失效
+   * 5、如果下载队列中已经满了，则会停止队尾的任务，当高优先级任务完成后，该队尾任务将自动执行
+   * 6、把任务设置为最高优先级任务后，将自动执行任务，不需要重新调用start()启动任务
+   */
+  protected void setHighestPriority() {
+    AriaManager.getInstance(AriaManager.APP)
+        .setCmd(
+            CommonUtil.createCmd(mTargetName, mTaskEntity, NormalCmdFactory.TASK_HIGHEST_PRIORITY))
+        .exe();
+  }
+
+  /**
+   * 重定向后，新url的key，默认为location
+   */
+  protected void _setRedirectUrlKey(String redirectUrlKey) {
+    if (TextUtils.isEmpty(redirectUrlKey)) {
+      Log.w("AbsNormalTarget", "重定向后，新url的key不能为null");
+      return;
+    }
+    mTaskEntity.redirectUrlKey = redirectUrlKey;
+  }
+
+  /**
+   * 删除记录
+   */
+  public void removeRecord() {
+    mEntity.deleteData();
+  }
+
+  /**
+   * 获取任务文件大小
+   *
+   * @return 文件大小
+   */
+  public long getFileSize() {
+    return getSize();
+  }
+
+
+  /**
+   * 获取单位转换后的文件大小
+   *
+   * @return 文件大小{@code xxx mb}
+   */
+  public String getConvertFileSize() {
+    return getConvertSize();
+  }
+
+  /**
+   * 下载任务是否存在
+   */
+  public boolean taskExists() {
+    return false;
+  }
+
+  /**
+   * 添加任务
+   */
+  public void add() {
+    AriaManager.getInstance(AriaManager.APP)
+        .setCmd(CommonUtil.createCmd(mTargetName, mTaskEntity, NormalCmdFactory.TASK_CREATE))
+        .exe();
+  }
+
+  /**
+   * 重新下载
+   */
+  public void reStart() {
+    cancel();
+    start();
+  }
+}
diff --git a/Aria/src/main/java/com/arialyy/aria/core/inf/AbsNormalTask.java b/Aria/src/main/java/com/arialyy/aria/core/inf/AbsNormalTask.java
new file mode 100644
index 00000000..a89f5e31
--- /dev/null
+++ b/Aria/src/main/java/com/arialyy/aria/core/inf/AbsNormalTask.java
@@ -0,0 +1,44 @@
+/*
+ * Copyright (C) 2016 AriaLyy(https://github.com/AriaLyy/Aria)
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package com.arialyy.aria.core.inf;
+
+/**
+ * Created by lyy on 2017/6/3.
+ */
+public abstract class AbsNormalTask extends AbsTask {
+
+  /**
+   * 暂停任务，并让任务处于等待状态
+   */
+  public void stopAndWait() {
+
+  }
+
+  /**
+   * 最高优先级命令，最高优先级命令有以下属性
+   * 1、在下载队列中，有且只有一个最高优先级任务
+   * 2、最高优先级任务会一直存在，直到用户手动暂停或任务完成
+   * 3、任务调度器不会暂停最高优先级任务
+   * 4、用户手动暂停或任务完成后，第二次重新执行该任务，该命令将失效
+   * 5、如果下载队列中已经满了，则会停止队尾的任务
+   * 6、把任务设置为最高优先级任务后，将自动执行任务，不需要重新调用start()启动任务
+   */
+  public void setHighestPriority(boolean isHighestPriority) {
+    isHeighestTask = isHighestPriority;
+  }
+
+
+}
diff --git a/Aria/src/main/java/com/arialyy/aria/core/inf/AbsReceiver.java b/Aria/src/main/java/com/arialyy/aria/core/inf/AbsReceiver.java
new file mode 100644
index 00000000..4e67339e
--- /dev/null
+++ b/Aria/src/main/java/com/arialyy/aria/core/inf/AbsReceiver.java
@@ -0,0 +1,27 @@
+/*
+ * Copyright (C) 2016 AriaLyy(https://github.com/AriaLyy/Aria)
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.arialyy.aria.core.inf;
+
+/**
+ * Created by AriaL on 2017/6/27.
+ */
+
+public abstract class AbsReceiver implements IReceiver{
+  public String targetName;
+  public Object obj;
+
+}
diff --git a/Aria/src/main/java/com/arialyy/aria/core/inf/AbsTarget.java b/Aria/src/main/java/com/arialyy/aria/core/inf/AbsTarget.java
index 4a286ba5..5356dcb7 100644
--- a/Aria/src/main/java/com/arialyy/aria/core/inf/AbsTarget.java
+++ b/Aria/src/main/java/com/arialyy/aria/core/inf/AbsTarget.java
@@ -20,32 +20,55 @@ import android.text.TextUtils;
 import android.util.Log;
 import com.arialyy.aria.core.AriaManager;
 import com.arialyy.aria.core.RequestEnum;
-import com.arialyy.aria.core.command.AbsCmd;
-import com.arialyy.aria.core.command.CmdFactory;
-import com.arialyy.aria.core.download.DownloadEntity;
-import com.arialyy.aria.core.upload.UploadEntity;
+import com.arialyy.aria.core.command.normal.NormalCmdFactory;
 import com.arialyy.aria.util.CommonUtil;
-import java.util.ArrayList;
-import java.util.List;
 import java.util.Map;
 import java.util.Set;
 
 /**
- * Created by lyy on 2017/2/28.
+ * Created by AriaL on 2017/7/3.
  */
-public abstract class AbsTarget {
-  protected ENTITY entity;
-  protected TASK_ENTITY taskEntity;
-  protected String targetName;
+public abstract class AbsTarget
+    implements ITarget {
+  protected ENTITY mEntity;
+  protected TASK_ENTITY mTaskEntity;
+  protected String mTargetName;
+
+  /**
+   * 获取任务进度，如果任务存在，则返回当前进度
+   *
+   * @return 该任务进度
+   */
+  public long getCurrentProgress() {
+    return mEntity == null ? -1 : mEntity.getCurrentProgress();
+  }
+
+  /**
+   * 获取任务文件大小
+   *
+   * @return 文件大小
+   */
+  @Override public long getSize() {
+    return mEntity == null ? 0 : mEntity.getFileSize();
+  }
+
+  /**
+   * 获取单位转换后的文件大小
+   *
+   * @return 文件大小{@code xxx mb}
+   */
+  @Override public String getConvertSize() {
+    return mEntity == null ? "0b" : CommonUtil.formatFileSize(mEntity.getFileSize());
+  }
 
   /**
    * 设置扩展字段，用来保存你的其它数据，如果你的数据比较多，你可以把你的数据转换为JSON字符串，然后再存到Aria中
    *
    * @param str 扩展数据
    */
-  public AbsTarget setExtendField(String str) {
-    entity.setStr(str);
-    return this;
+  public TARGET setExtendField(String str) {
+    mEntity.setStr(str);
+    return (TARGET) this;
   }
 
   /**
@@ -53,7 +76,7 @@ public abstract class AbsTarget headers) {
+  public TARGET addHeaders(Map headers) {
     if (headers != null && headers.size() > 0) {
       Set keys = headers.keySet();
       for (String key : keys) {
-        taskEntity.headers.put(key, headers.get(key));
+        mTaskEntity.headers.put(key, headers.get(key));
       }
     }
+    return (TARGET) this;
   }
 
   /**
@@ -189,62 +133,76 @@ public abstract class AbsTarget cmds = new ArrayList<>();
-    cmds.add(CommonUtil.createCmd(targetName, taskEntity, CmdFactory.TASK_CREATE));
-    cmds.add(CommonUtil.createCmd(targetName, taskEntity, CmdFactory.TASK_START));
-    AriaManager.getInstance(AriaManager.APP).setCmds(cmds).exe();
-    cmds.clear();
+  @Override public void start() {
+    AriaManager.getInstance(AriaManager.APP)
+        .setCmd(CommonUtil.createCmd(mTargetName, mTaskEntity, NormalCmdFactory.TASK_START))
+        .exe();
   }
 
   /**
    * 停止下载
+   *
+   * @see #stop()
    */
-  protected void pause() {
+  @Deprecated public void pause() {
+    stop();
+  }
+
+  @Override public void stop() {
     AriaManager.getInstance(AriaManager.APP)
-        .setCmd(CommonUtil.createCmd(targetName, taskEntity, CmdFactory.TASK_STOP))
+        .setCmd(CommonUtil.createCmd(mTargetName, mTaskEntity, NormalCmdFactory.TASK_STOP))
         .exe();
   }
 
   /**
    * 恢复下载
    */
-  protected void resume() {
+  @Override public void resume() {
     AriaManager.getInstance(AriaManager.APP)
-        .setCmd(CommonUtil.createCmd(targetName, taskEntity, CmdFactory.TASK_START))
+        .setCmd(CommonUtil.createCmd(mTargetName, mTaskEntity, NormalCmdFactory.TASK_START))
         .exe();
   }
 
   /**
    * 取消下载
    */
-  public void cancel() {
+  @Override public void cancel() {
     AriaManager.getInstance(AriaManager.APP)
-        .setCmd(CommonUtil.createCmd(targetName, taskEntity, CmdFactory.TASK_CANCEL))
+        .setCmd(CommonUtil.createCmd(mTargetName, mTaskEntity, NormalCmdFactory.TASK_CANCEL))
         .exe();
   }
 
   /**
-   * 重新下载
+   * 创建文件名，如果url链接有后缀名，则使用url中的后缀名
+   *
+   * @return url 的 hashKey
    */
-  void reStart() {
-    cancel();
-    start();
+  protected String createFileName(String url) {
+    int end = url.indexOf("?");
+    String tempUrl, fileName = "";
+    if (end > 0) {
+      tempUrl = url.substring(0, end);
+      int tempEnd = tempUrl.lastIndexOf("/");
+      if (tempEnd > 0) {
+        fileName = tempUrl.substring(tempEnd + 1, tempUrl.length());
+      }
+    } else {
+      int tempEnd = url.lastIndexOf("/");
+      if (tempEnd > 0) {
+        fileName = url.substring(tempEnd + 1, url.length());
+      }
+    }
+    if (TextUtils.isEmpty(fileName)) {
+      fileName = CommonUtil.keyToHashKey(url);
+    }
+    return fileName;
   }
 }
diff --git a/Aria/src/main/java/com/arialyy/aria/core/inf/AbsTask.java b/Aria/src/main/java/com/arialyy/aria/core/inf/AbsTask.java
index 64e6f543..1bbaecc8 100644
--- a/Aria/src/main/java/com/arialyy/aria/core/inf/AbsTask.java
+++ b/Aria/src/main/java/com/arialyy/aria/core/inf/AbsTask.java
@@ -16,25 +16,100 @@
 package com.arialyy.aria.core.inf;
 
 import android.content.Context;
+import android.os.Handler;
 import com.arialyy.aria.util.CommonUtil;
 
 /**
- * Created by lyy on 2017/6/3.
+ * Created by AriaL on 2017/6/29.
  */
-public abstract class AbsTask
-    implements ITask {
+public abstract class AbsTask implements ITask {
 
   protected ENTITY mEntity;
+  protected Handler mOutHandler;
 
   /**
    * 用于生成该任务对象的hash码
    */
   private String mTargetName;
   protected Context mContext;
-  private boolean isHeighestTask = false;
 
-  @Override public void stopAndWait() {
+  protected boolean isHeighestTask = false;
 
+  /**
+   * 任务是否完成
+   *
+   * @return {@code true} 已经完成，{@code false} 未完成
+   */
+  public boolean isComplete() {
+    return mEntity.isComplete();
+  }
+
+  /**
+   * 获取当前下载进度
+   */
+  @Override public long getCurrentProgress() {
+    return mEntity.getCurrentProgress();
+  }
+
+  /**
+   * 获取单位转换后的进度
+   *
+   * @return 如：已经下载3mb的大小，则返回{@code 3mb}
+   */
+  @Override public String getConvertCurrentProgress() {
+    if (mEntity.getCurrentProgress() == 0) {
+      return "0b";
+    }
+    return CommonUtil.formatFileSize(mEntity.getCurrentProgress());
+  }
+
+  /**
+   * 转换单位后的文件长度
+   *
+   * @return 如果文件长度为0，则返回0m，否则返回转换后的长度1b、1kb、1mb、1gb、1tb
+   */
+  @Override public String getConvertFileSize() {
+    if (mEntity.getFileSize() == 0) {
+      return "0mb";
+    }
+    return CommonUtil.formatFileSize(mEntity.getFileSize());
+  }
+
+  /**
+   * 获取文件大小
+   */
+  @Override public long getFileSize() {
+    return mEntity.getFileSize();
+  }
+
+  /**
+   * 获取百分比进度
+   *
+   * @return 返回百分比进度，如果文件长度为0，返回0
+   */
+  @Override public int getPercent() {
+    if (mEntity.getFileSize() == 0) {
+      return 0;
+    }
+    return (int) (mEntity.getCurrentProgress() * 100 / mEntity.getFileSize());
+  }
+
+  /**
+   * 任务当前状态
+   *
+   * @return {@link IEntity}
+   */
+  public int getState() {
+    return mEntity == null ? IEntity.STATE_OTHER : mEntity.getState();
+  }
+
+  /**
+   * 获取保存的扩展字段
+   *
+   * @return 如果实体不存在，则返回null，否则返回扩展字段
+   */
+  @Override public String getExtendField() {
+    return mEntity == null ? null : mEntity.getStr();
   }
 
   /**
@@ -79,84 +154,10 @@ public abstract class AbsTask extends DbEntity {
+
+  /**
+   * Task实体对应的key
+   */
+  @Primary public String key = "";
 
-public abstract class AbsTaskEntity {
   /**
    * http 请求头
    */
@@ -35,9 +43,45 @@ public abstract class AbsTaskEntity {
   public RequestEnum requestEnum = RequestEnum.GET;
 
   /**
-   * 重定向后，新url的key
+   * 从链接中含有的文件md5码信息所需要的key
+   */
+  public String md5Key = "Content-MD5";
+
+  /**
+   * 从链接中获取文件描述信息所需要的key
+   */
+  public String dispositionKey = "Content-Disposition";
+
+  /**
+   * 重定向后，从链接中获取新url所需要的key
    */
   public String redirectUrlKey = "location";
 
-  public abstract AbsEntity getEntity();
+  /**
+   * 从Disposition获取的文件名说需要的key
+   */
+  public String dispositionFileKey = "attachment;filename";
+
+  /**
+   * 重定向链接
+   */
+  public String redirectUrl = "";
+
+  /**
+   * {@code true}  删除任务数据库记录，并且删除已经下载完成的文件
+   * {@code false} 如果任务已经完成，只删除任务数据库记录
+   */
+  @Ignore public boolean removeFile = false;
+
+  /**
+   * 是否支持断点, {@code true} 为支持断点
+   */
+  public boolean isSupportBP = true;
+
+  /**
+   * 状态码
+   */
+  public int code;
+
+  public abstract ENTITY getEntity();
 }
diff --git a/Aria/src/main/java/com/arialyy/aria/core/inf/IEntity.java b/Aria/src/main/java/com/arialyy/aria/core/inf/IEntity.java
index 6b60f1bb..156a01ce 100644
--- a/Aria/src/main/java/com/arialyy/aria/core/inf/IEntity.java
+++ b/Aria/src/main/java/com/arialyy/aria/core/inf/IEntity.java
@@ -20,42 +20,41 @@ import com.arialyy.aria.orm.Ignore;
 /**
  * Created by lyy on 2017/2/23.
  */
-
 public interface IEntity {
   /**
    * 其它状态
    */
-  @Ignore public static final int STATE_OTHER = -1;
+  @Ignore int STATE_OTHER = -1;
   /**
    * 失败状态
    */
-  @Ignore public static final int STATE_FAIL = 0;
+  @Ignore int STATE_FAIL = 0;
   /**
    * 完成状态
    */
-  @Ignore public static final int STATE_COMPLETE = 1;
+  @Ignore int STATE_COMPLETE = 1;
   /**
    * 停止状态
    */
-  @Ignore public static final int STATE_STOP = 2;
+  @Ignore int STATE_STOP = 2;
   /**
-   * 未开始状态
+   * 等待状态
    */
-  @Ignore public static final int STATE_WAIT = 3;
+  @Ignore int STATE_WAIT = 3;
   /**
    * 下载中
    */
-  @Ignore public static final int STATE_RUNNING = 4;
+  @Ignore int STATE_RUNNING = 4;
   /**
    * 预处理
    */
-  @Ignore public static final int STATE_PRE = 5;
+  @Ignore int STATE_PRE = 5;
   /**
    * 预处理完成
    */
-  @Ignore public static final int STATE_POST_PRE = 6;
+  @Ignore int STATE_POST_PRE = 6;
   /**
    * 取消下载
    */
-  @Ignore public static final int STATE_CANCEL = 7;
+  @Ignore int STATE_CANCEL = 7;
 }
diff --git a/Aria/src/main/java/com/arialyy/aria/core/download/IDownloadListener.java b/Aria/src/main/java/com/arialyy/aria/core/inf/IEventListener.java
similarity index 58%
rename from Aria/src/main/java/com/arialyy/aria/core/download/IDownloadListener.java
rename to Aria/src/main/java/com/arialyy/aria/core/inf/IEventListener.java
index 0e805e35..c9842fac 100644
--- a/Aria/src/main/java/com/arialyy/aria/core/download/IDownloadListener.java
+++ b/Aria/src/main/java/com/arialyy/aria/core/inf/IEventListener.java
@@ -13,73 +13,56 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-
-package com.arialyy.aria.core.download;
+package com.arialyy.aria.core.inf;
 
 /**
- * 下载监听
+ * Created by Aria.Lao on 2017/7/18.
+ * 基础事件
  */
-interface IDownloadListener {
-
-  /**
-   * 支持断点回调
-   *
-   * @param support true,支持；false 不支持
-   */
-  public void supportBreakpoint(boolean support);
-
-  /**
-   * 取消下载
-   */
-  public void onCancel();
-
-  /**
-   * 下载失败
-   */
-  public void onFail();
+public interface IEventListener {
 
   /**
    * 预处理，有时有些地址链接比较慢，这时可以先在这个地方出来一些界面上的UI，如按钮的状态
    */
-  public void onPre();
+  void onPre();
 
   /**
    * 预处理完成,准备下载---开始下载之间
    */
-  public void onPostPre(long fileSize);
-
-  /**
-   * 下载监听
-   */
-  public void onProgress(long currentLocation);
-
-  /**
-   * 单一线程的结束位置
-   */
-  public void onChildComplete(long finishLocation);
+  void onPostPre(long fileSize);
 
   /**
    * 开始
    */
-  public void onStart(long startLocation);
-
-  /**
-   * 子程恢复下载的位置
-   */
-  public void onChildResume(long resumeLocation);
+  void onStart(long startLocation);
 
   /**
    * 恢复位置
    */
-  public void onResume(long resumeLocation);
+  void onResume(long resumeLocation);
+
+  /**
+   * 下载监听
+   */
+  void onProgress(long currentLocation);
 
   /**
    * 停止
    */
-  public void onStop(long stopLocation);
+  void onStop(long stopLocation);
 
   /**
    * 下载完成
    */
-  public void onComplete();
-}
\ No newline at end of file
+  void onComplete();
+
+  /**
+   * 取消下载
+   */
+  void onCancel();
+
+  /**
+   * 下载失败
+   */
+  void onFail();
+}
diff --git a/Aria/src/main/java/com/arialyy/aria/core/inf/IReceiver.java b/Aria/src/main/java/com/arialyy/aria/core/inf/IReceiver.java
index 0c8d701c..dc347eee 100644
--- a/Aria/src/main/java/com/arialyy/aria/core/inf/IReceiver.java
+++ b/Aria/src/main/java/com/arialyy/aria/core/inf/IReceiver.java
@@ -44,7 +44,7 @@ public interface IReceiver {
   /**
    * 删除所有任务
    */
-  public void removeAllTask();
+  public void removeAllTask(boolean removeFile);
 
   /**
    * 任务是否存在
@@ -56,5 +56,5 @@ public interface IReceiver {
   /**
    * 获取任务列表
    */
-  public List getTaskList();
+  public List getSimpleTaskList();
 }
diff --git a/Aria/src/main/java/com/arialyy/aria/core/inf/ITarget.java b/Aria/src/main/java/com/arialyy/aria/core/inf/ITarget.java
new file mode 100644
index 00000000..6a12071b
--- /dev/null
+++ b/Aria/src/main/java/com/arialyy/aria/core/inf/ITarget.java
@@ -0,0 +1,86 @@
+/*
+ * Copyright (C) 2016 AriaLyy(https://github.com/AriaLyy/Aria)
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package com.arialyy.aria.core.inf;
+
+import android.support.annotation.NonNull;
+import com.arialyy.aria.core.RequestEnum;
+import java.util.Map;
+
+/**
+ * Created by AriaL on 2017/6/29.
+ */
+public interface ITarget {
+  /**
+   * 任务文件大小
+   */
+  long getSize();
+
+  /**
+   * 转换后的大小
+   */
+  String getConvertSize();
+
+  /**
+   * 获取任务进度百分比
+   */
+  int getPercent();
+
+  /**
+   * 获取任务进度，如果任务存在，则返回当前进度
+   */
+  long getCurrentProgress();
+
+  /**
+   * 给url请求添加头部
+   *
+   * @param key 头部key
+   * @param header 头部value
+   */
+  TARGET addHeader(@NonNull String key, @NonNull String header) ;
+
+  /**
+   * 给url请求添加头部
+   */
+  TARGET addHeaders(Map headers);
+
+  /**
+   * 设置请求类型
+   *
+   * @param requestEnum {@link RequestEnum}
+   */
+  TARGET setRequestMode(RequestEnum requestEnum);
+
+  /**
+   * 开始下载
+   */
+  void start();
+
+  /**
+   * 停止下载
+   */
+  void stop();
+
+  /**
+   * 恢复下载
+   */
+  void resume();
+
+  /**
+   * 取消下载
+   */
+  void cancel();
+
+}
diff --git a/Aria/src/main/java/com/arialyy/aria/core/inf/ITask.java b/Aria/src/main/java/com/arialyy/aria/core/inf/ITask.java
index c8b4efa2..70bee951 100644
--- a/Aria/src/main/java/com/arialyy/aria/core/inf/ITask.java
+++ b/Aria/src/main/java/com/arialyy/aria/core/inf/ITask.java
@@ -18,25 +18,17 @@ package com.arialyy.aria.core.inf;
 /**
  * Created by lyy on 2017/2/13.
  */
-
 public interface ITask {
 
   /**
-   * 暂停任务，并让任务处于等待状态
+   * 获取下载状态
    */
-  public void stopAndWait();
+  int getState();
 
   /**
-   * 设置任务为最高优先级任务，在下载队列中，有且只有一个最高优先级任务
+   * 获取扩展字段
    */
-  public void setHighestPriority(boolean isHighestPriority);
-
-  /**
-   * 该任务是否是最高优先级任务
-   *
-   * @return {@code true} 任务为最高优先级任务
-   */
-  public boolean isHighestPriorityTask();
+  String getExtendField();
 
   /**
    * 唯一标识符，DownloadTask 为下载地址，UploadTask 为文件路径
@@ -44,14 +36,14 @@ public interface ITask {
   public String getKey();
 
   /**
-   * 是否真正执行
+   * 任务是否正在执行
    *
    * @return true，正在执行；
    */
   public boolean isRunning();
 
   /**
-   * 获取工具实体
+   * 获取信息实体
    */
   public ENTITY getEntity();
 
@@ -100,5 +92,4 @@ public interface ITask {
 
   public void setTargetName(String targetName);
 
-  public void removeRecord();
 }
diff --git a/Aria/src/main/java/com/arialyy/aria/core/queue/AbsTaskQueue.java b/Aria/src/main/java/com/arialyy/aria/core/queue/AbsTaskQueue.java
index 625d28dd..8dab1afb 100644
--- a/Aria/src/main/java/com/arialyy/aria/core/queue/AbsTaskQueue.java
+++ b/Aria/src/main/java/com/arialyy/aria/core/queue/AbsTaskQueue.java
@@ -17,24 +17,51 @@
 package com.arialyy.aria.core.queue;
 
 import android.util.Log;
-import com.arialyy.aria.core.Aria;
 import com.arialyy.aria.core.AriaManager;
+import com.arialyy.aria.core.download.DownloadEntity;
+import com.arialyy.aria.core.download.DownloadTask;
 import com.arialyy.aria.core.inf.AbsEntity;
-import com.arialyy.aria.core.inf.ITask;
+import com.arialyy.aria.core.inf.AbsTask;
 import com.arialyy.aria.core.inf.AbsTaskEntity;
-import com.arialyy.aria.core.queue.pool.CachePool;
-import com.arialyy.aria.core.queue.pool.ExecutePool;
+import com.arialyy.aria.core.inf.IEntity;
+import com.arialyy.aria.core.queue.pool.BaseCachePool;
+import com.arialyy.aria.core.queue.pool.BaseExecutePool;
 import java.util.Set;
 
 /**
  * Created by lyy on 2017/2/23.
  * 任务队列
  */
-abstract class AbsTaskQueue
+abstract class AbsTaskQueue
     implements ITaskQueue {
   private final String TAG = "AbsTaskQueue";
-  CachePool mCachePool = new CachePool<>();
-  ExecutePool mExecutePool;
+  BaseCachePool mCachePool;
+  BaseExecutePool mExecutePool;
+
+  AbsTaskQueue() {
+    mCachePool = setCachePool();
+    mExecutePool = setExecutePool();
+  }
+
+  abstract BaseCachePool setCachePool();
+
+  abstract BaseExecutePool setExecutePool();
+
+  @Override public boolean taskIsRunning(String key) {
+    return mExecutePool.getTask(key) != null;
+  }
+
+  @Override public void removeAllTask() {
+    Set exeKeys = mExecutePool.getAllTask().keySet();
+    for (String key : exeKeys) {
+      TASK task = mExecutePool.getAllTask().get(key);
+      if (task != null) task.cancel();
+    }
+    Set cacheKeys = mCachePool.getAllTask().keySet();
+    for (String key : cacheKeys) {
+      mExecutePool.removeTask(key);
+    }
+  }
 
   /**
    * 停止所有任务
@@ -55,17 +82,27 @@ abstract class AbsTaskQueue= oldMaxSize) {
+      for (int i = 0, len = Math.abs(diff); i < len; i++) {
+        TASK eTask = mExecutePool.pollTask();
+        if (eTask != null) {
+          stopTask(eTask);
+        }
+      }
+    }
+    mExecutePool.setMaxNum(downloadNum);
+    if (diff >= 1) {
+      for (int i = 0; i < diff; i++) {
+        TASK nextTask = getNextTask();
+        if (nextTask != null && nextTask.getState() == IEntity.STATE_WAIT) {
+          startTask(nextTask);
+        }
+      }
+    }
   }
 
   @Override public TASK getTask(String url) {
@@ -109,12 +169,22 @@ abstract class AbsTaskQueue {
+  private static volatile DownloadGroupTaskQueue INSTANCE = null;
+
+  private final String TAG = "DownloadGroupTaskQueue";
+
+  public static DownloadGroupTaskQueue getInstance() {
+    if (INSTANCE == null) {
+      synchronized (AriaManager.LOCK) {
+        INSTANCE = new DownloadGroupTaskQueue();
+      }
+    }
+    return INSTANCE;
+  }
+
+  private DownloadGroupTaskQueue() {
+  }
+
+  @Override BaseCachePool setCachePool() {
+    return DownloadSharePool.getInstance().cachePool;
+  }
+
+  @Override BaseExecutePool setExecutePool() {
+    return DownloadSharePool.getInstance().executePool;
+  }
+
+  @Override public DownloadGroupTask createTask(String targetName, DownloadGroupTaskEntity entity) {
+    DownloadGroupTask task = null;
+    if (!TextUtils.isEmpty(targetName)) {
+      task = (DownloadGroupTask) TaskFactory.getInstance()
+          .createTask(targetName, entity, DownloadGroupSchedulers.getInstance());
+      entity.key = entity.getEntity().getGroupName();
+      mCachePool.putTask(task);
+
+      DQueueMapping.getInstance().addType(task.getKey(), DQueueMapping.QUEUE_TYPE_DOWNLOAD_GROUP);
+    } else {
+      Log.e(TAG, "target name 为 null！！");
+    }
+    return task;
+  }
+
+  @Override public String getKey(DownloadGroupEntity entity) {
+    return entity.getGroupName();
+  }
+
+  @Override public int getConfigMaxNum() {
+    return AriaManager.getInstance(AriaManager.APP).getDownloadConfig().oldMaxTaskNum;
+  }
+}
diff --git a/Aria/src/main/java/com/arialyy/aria/core/queue/DownloadTaskQueue.java b/Aria/src/main/java/com/arialyy/aria/core/queue/DownloadTaskQueue.java
index 4140433a..24d4344c 100644
--- a/Aria/src/main/java/com/arialyy/aria/core/queue/DownloadTaskQueue.java
+++ b/Aria/src/main/java/com/arialyy/aria/core/queue/DownloadTaskQueue.java
@@ -22,8 +22,10 @@ import com.arialyy.aria.core.AriaManager;
 import com.arialyy.aria.core.download.DownloadEntity;
 import com.arialyy.aria.core.download.DownloadTask;
 import com.arialyy.aria.core.download.DownloadTaskEntity;
-import com.arialyy.aria.core.inf.IEntity;
-import com.arialyy.aria.core.queue.pool.ExecutePool;
+import com.arialyy.aria.core.queue.pool.BaseCachePool;
+import com.arialyy.aria.core.queue.pool.BaseExecutePool;
+import com.arialyy.aria.core.queue.pool.DownloadSharePool;
+import com.arialyy.aria.core.scheduler.DQueueMapping;
 import com.arialyy.aria.core.scheduler.DownloadSchedulers;
 import java.util.LinkedHashSet;
 import java.util.Map;
@@ -48,10 +50,28 @@ public class DownloadTaskQueue
   }
 
   private DownloadTaskQueue() {
-    mExecutePool = new ExecutePool<>(true);
   }
 
-  @Override public void setTaskHighestPriority(DownloadTask task) {
+  @Override BaseCachePool setCachePool() {
+    return DownloadSharePool.getInstance().cachePool;
+  }
+
+  @Override BaseExecutePool setExecutePool() {
+    return DownloadSharePool.getInstance().executePool;
+  }
+
+  @Override public String getKey(DownloadEntity entity) {
+    return entity.getDownloadUrl();
+  }
+
+  @Override public int getConfigMaxNum() {
+    return AriaManager.getInstance(AriaManager.APP).getDownloadConfig().oldMaxTaskNum;
+  }
+
+  /**
+   * 设置任务为最高优先级任务
+   */
+  public void setTaskHighestPriority(DownloadTask task) {
     task.setHighestPriority(true);
     Map exeTasks = mExecutePool.getAllTask();
     if (exeTasks != null && !exeTasks.isEmpty()) {
@@ -91,66 +111,36 @@ public class DownloadTaskQueue
     }
   }
 
-  public void setMaxSpeed(double maxSpeed){
+  /**
+   * 最大下载速度
+   */
+  public void setMaxSpeed(double maxSpeed) {
     Map tasks = mExecutePool.getAllTask();
     Set keys = tasks.keySet();
-    for (String key : keys){
+    for (String key : keys) {
       DownloadTask task = tasks.get(key);
       task.setMaxSpeed(maxSpeed);
     }
   }
 
-  @Override public void setMaxTaskNum(int downloadNum) {
-    int oldMaxSize = AriaManager.getInstance(AriaManager.APP).getDownloadConfig().oldMaxTaskNum;
-    int diff = downloadNum - oldMaxSize;
-    if (oldMaxSize == downloadNum) {
-      Log.d(TAG, "设置的下载任务数和配置文件的下载任务数一直，跳过");
-      return;
-    }
-    //设置的任务数小于配置任务数
-    if (diff <= -1 && mExecutePool.size() >= oldMaxSize) {
-      for (int i = 0, len = Math.abs(diff); i < len; i++) {
-        DownloadTask eTask = mExecutePool.pollTask();
-        if (eTask != null) {
-          stopTask(eTask);
-        }
-      }
-    }
-    mExecutePool.setDownloadNum(downloadNum);
-    if (diff >= 1) {
-      for (int i = 0; i < diff; i++) {
-        DownloadTask nextTask = getNextTask();
-        if (nextTask != null && nextTask.getDownloadEntity().getState() == IEntity.STATE_WAIT) {
-          startTask(nextTask);
-        }
-      }
-    }
-  }
-
   @Override public DownloadTask createTask(String target, DownloadTaskEntity entity) {
     DownloadTask task = null;
     if (!TextUtils.isEmpty(target)) {
       task = (DownloadTask) TaskFactory.getInstance()
           .createTask(target, entity, DownloadSchedulers.getInstance());
+      entity.key = entity.getEntity().getDownloadPath();
       mCachePool.putTask(task);
+
+      DQueueMapping.getInstance().addType(task.getKey(), DQueueMapping.QUEUE_TYPE_DOWNLOAD);
     } else {
-      Log.e(TAG, "target name 为 null是！！");
+      Log.e(TAG, "target name 为 null！！");
     }
+
     return task;
   }
 
-  @Override public DownloadTask getTask(DownloadEntity entity) {
-    return getTask(entity.getDownloadUrl());
-  }
-
-  @Override public void removeTask(DownloadEntity entity) {
-    DownloadTask task = mExecutePool.getTask(entity.getDownloadUrl());
-    if (task != null) {
-      Log.d(TAG, "从执行池删除任务，删除" + (mExecutePool.removeTask(task) ? "成功" : "失败"));
-    }
-    task = mCachePool.getTask(entity.getDownloadUrl());
-    if (task != null) {
-      Log.d(TAG, "从缓存池删除任务，删除" + (mCachePool.removeTask(task) ? "成功" : "失败"));
-    }
+  @Override public void stopTask(DownloadTask task) {
+    task.setHighestPriority(false);
+    super.stopTask(task);
   }
 }
\ No newline at end of file
diff --git a/Aria/src/main/java/com/arialyy/aria/core/queue/ITaskQueue.java b/Aria/src/main/java/com/arialyy/aria/core/queue/ITaskQueue.java
index 9c9bd7c0..76594a81 100644
--- a/Aria/src/main/java/com/arialyy/aria/core/queue/ITaskQueue.java
+++ b/Aria/src/main/java/com/arialyy/aria/core/queue/ITaskQueue.java
@@ -19,8 +19,10 @@ package com.arialyy.aria.core.queue;
 import com.arialyy.aria.core.download.DownloadEntity;
 import com.arialyy.aria.core.download.DownloadTaskEntity;
 import com.arialyy.aria.core.download.DownloadTask;
+import com.arialyy.aria.core.inf.AbsEntity;
+import com.arialyy.aria.core.inf.AbsNormalTask;
+import com.arialyy.aria.core.inf.AbsTask;
 import com.arialyy.aria.core.inf.IEntity;
-import com.arialyy.aria.core.inf.ITask;
 import com.arialyy.aria.core.inf.AbsTaskEntity;
 import com.arialyy.aria.core.upload.UploadEntity;
 import com.arialyy.aria.core.upload.UploadTask;
@@ -30,7 +32,15 @@ import com.arialyy.aria.core.upload.UploadTaskEntity;
  * Created by lyy on 2016/8/16.
  * 任务功能接口
  */
-public interface ITaskQueue {
+public interface ITaskQueue {
+
+  /**
+   * 通过key判断任务是否正在执行
+   *
+   * @param key 下载链接，或上传文件的路径
+   * @return {@code true} 任务正在运行
+   */
+  boolean taskIsRunning(String key);
 
   /**
    * 停止所有任务
@@ -38,11 +48,9 @@ public interface ITaskQueue {@link DownloadTaskEntity}、{@link UploadTaskEntity}
-   * @param  {@link DownloadSchedulers}
-   * @return {@link DownloadTask}、{@link UploadTask}
+   * @param  {@link DownloadTaskEntity}、{@link UploadTaskEntity}、{@link
+   * DownloadGroupTaskEntity}
+   * @param  {@link DownloadSchedulers}、{@link UploadSchedulers}
+   * @return {@link DownloadTask}、{@link UploadTask}、{@link DownloadGroupTask}
    */
-   ITask createTask(String targetName,
-      ENTITY entity, SCHEDULER schedulers) {
+   ITask createTask(
+      String targetName, TASK_ENTITY entity, SCHEDULER schedulers) {
     if (entity instanceof DownloadTaskEntity) {
       return createDownloadTask(targetName, (DownloadTaskEntity) entity, schedulers);
     } else if (entity instanceof UploadTaskEntity) {
       return createUploadTask(targetName, (UploadTaskEntity) entity, schedulers);
+    } else if (entity instanceof DownloadGroupTaskEntity) {
+      return createDownloadGroupTask(targetName, (DownloadGroupTaskEntity) entity, schedulers);
     }
     return null;
   }
 
+  /**
+   * 创建下载任务主任务
+   *
+   * @param entity 下载任务实体{@link DownloadGroupTask}
+   * @param schedulers {@link ISchedulers}
+   */
+  private DownloadGroupTask createDownloadGroupTask(String targetName,
+      DownloadGroupTaskEntity entity, ISchedulers schedulers) {
+    DownloadGroupTask.Builder builder = new DownloadGroupTask.Builder(targetName, entity);
+    builder.setOutHandler(schedulers);
+    return builder.build();
+  }
+
   /**
    * @param entity 上传任务实体{@link UploadTaskEntity}
    * @param schedulers {@link ISchedulers}
diff --git a/Aria/src/main/java/com/arialyy/aria/core/queue/UploadTaskQueue.java b/Aria/src/main/java/com/arialyy/aria/core/queue/UploadTaskQueue.java
index 2b56ac84..46e3f9b4 100644
--- a/Aria/src/main/java/com/arialyy/aria/core/queue/UploadTaskQueue.java
+++ b/Aria/src/main/java/com/arialyy/aria/core/queue/UploadTaskQueue.java
@@ -19,7 +19,9 @@ package com.arialyy.aria.core.queue;
 import android.text.TextUtils;
 import android.util.Log;
 import com.arialyy.aria.core.AriaManager;
-import com.arialyy.aria.core.queue.pool.ExecutePool;
+import com.arialyy.aria.core.queue.pool.BaseCachePool;
+import com.arialyy.aria.core.queue.pool.BaseExecutePool;
+import com.arialyy.aria.core.queue.pool.UploadSharePool;
 import com.arialyy.aria.core.scheduler.UploadSchedulers;
 import com.arialyy.aria.core.upload.UploadEntity;
 import com.arialyy.aria.core.upload.UploadTask;
@@ -43,11 +45,22 @@ public class UploadTaskQueue extends AbsTaskQueue(false);
   }
 
-  @Override public void setMaxTaskNum(int newMaxNum) {
+  @Override BaseCachePool setCachePool() {
+    return UploadSharePool.getInstance().cachePool;
+  }
 
+  @Override BaseExecutePool setExecutePool() {
+    return UploadSharePool.getInstance().executePool;
+  }
+
+  @Override public String getKey(UploadEntity entity) {
+    return entity.getFilePath();
+  }
+
+  @Override public int getConfigMaxNum() {
+    return AriaManager.getInstance(AriaManager.APP).getUploadConfig().oldMaxTaskNum;
   }
 
   @Override public UploadTask createTask(String targetName, UploadTaskEntity entity) {
@@ -55,25 +68,11 @@ public class UploadTaskQueue extends AbsTaskQueue implements IPool {
-  private static final String TAG = "CachePool";
+public class BaseCachePool implements IPool {
+  private static final String TAG = "BaseCachePool";
   private static final int MAX_NUM = Integer.MAX_VALUE;  //最大下载任务数
   private static final long TIME_OUT = 1000;
   private Map mCacheMap;
   private LinkedBlockingQueue mCacheQueue;
 
-  public CachePool() {
+  public BaseCachePool() {
     mCacheQueue = new LinkedBlockingQueue<>(MAX_NUM);
     mCacheMap = new HashMap<>();
   }
 
   /**
-   * 获取所有正在执行的任务
+   * 获取被缓存的任务
    */
   public Map getAllTask() {
     return mCacheMap;
@@ -95,7 +96,7 @@ public class CachePool implements IPool {
   @Override public TASK pollTask() {
     synchronized (AriaManager.LOCK) {
       try {
-        TASK task = null;
+        TASK task;
         task = mCacheQueue.poll(TIME_OUT, TimeUnit.MICROSECONDS);
         if (task != null) {
           String url = task.getKey();
diff --git a/Aria/src/main/java/com/arialyy/aria/core/queue/pool/ExecutePool.java b/Aria/src/main/java/com/arialyy/aria/core/queue/pool/BaseExecutePool.java
similarity index 73%
rename from Aria/src/main/java/com/arialyy/aria/core/queue/pool/ExecutePool.java
rename to Aria/src/main/java/com/arialyy/aria/core/queue/pool/BaseExecutePool.java
index 4f9691af..fda42905 100644
--- a/Aria/src/main/java/com/arialyy/aria/core/queue/pool/ExecutePool.java
+++ b/Aria/src/main/java/com/arialyy/aria/core/queue/pool/BaseExecutePool.java
@@ -19,11 +19,12 @@ package com.arialyy.aria.core.queue.pool;
 import android.text.TextUtils;
 import android.util.Log;
 import com.arialyy.aria.core.AriaManager;
+import com.arialyy.aria.core.inf.AbsTask;
 import com.arialyy.aria.core.inf.ITask;
+import com.arialyy.aria.core.scheduler.DQueueMapping;
 import com.arialyy.aria.util.CommonUtil;
 import java.util.HashMap;
 import java.util.Map;
-import java.util.Set;
 import java.util.concurrent.ArrayBlockingQueue;
 import java.util.concurrent.TimeUnit;
 
@@ -31,23 +32,28 @@ import java.util.concurrent.TimeUnit;
  * Created by lyy on 2016/8/15.
  * 任务执行池，所有当前下载任务都该任务池中，默认下载大小为2
  */
-public class ExecutePool implements IPool {
-  private static final String TAG = "ExecutePool";
-  private static final long TIME_OUT = 1000;
-  private ArrayBlockingQueue mExecuteQueue;
-  private Map mExecuteMap;
-  private int mSize;
+public class BaseExecutePool implements IPool {
+  private final String TAG = "BaseExecutePool";
+  final long TIME_OUT = 1000;
+  ArrayBlockingQueue mExecuteQueue;
+  Map mExecuteMap;
+  int mSize;
 
-  public ExecutePool(boolean isDownload) {
-    if (isDownload) {
-      mSize = AriaManager.getInstance(AriaManager.APP).getDownloadConfig().getMaxTaskNum();
-    } else {
-      mSize = AriaManager.getInstance(AriaManager.APP).getUploadConfig().getMaxTaskNum();
-    }
+  BaseExecutePool() {
+    mSize = getMaxSize();
     mExecuteQueue = new ArrayBlockingQueue<>(mSize);
     mExecuteMap = new HashMap<>();
   }
 
+  /**
+   * 获取最大任务数配置
+   *
+   * @return {@link AriaManager#getDownloadConfig()} {@link AriaManager#getUploadConfig()}，如果不设置，默认返回2
+   */
+  protected int getMaxSize() {
+    return 2;
+  }
+
   /**
    * 获取所有正在执行的任务
    */
@@ -67,10 +73,6 @@ public class ExecutePool implements IPool {
         return false;
       } else {
         if (mExecuteQueue.size() >= mSize) {
-          Set keys = mExecuteMap.keySet();
-          for (String key : keys) {
-            if (mExecuteMap.get(key).isHighestPriorityTask()) return false;
-          }
           if (pollFirstTask()) {
             return putNewTask(task);
           }
@@ -83,19 +85,19 @@ public class ExecutePool implements IPool {
   }
 
   /**
-   * 设置执行任务数
+   * 设置执行队列最大任务数
    *
-   * @param downloadNum 下载数
+   * @param maxNum 下载数
    */
-  public void setDownloadNum(int downloadNum) {
+  public void setMaxNum(int maxNum) {
     try {
-      ArrayBlockingQueue temp = new ArrayBlockingQueue<>(downloadNum);
+      ArrayBlockingQueue temp = new ArrayBlockingQueue<>(maxNum);
       TASK task;
       while ((task = mExecuteQueue.poll(TIME_OUT, TimeUnit.MICROSECONDS)) != null) {
         temp.offer(task);
       }
       mExecuteQueue = temp;
-      mSize = downloadNum;
+      mSize = maxNum;
     } catch (InterruptedException e) {
       e.printStackTrace();
     }
@@ -104,9 +106,9 @@ public class ExecutePool implements IPool {
   /**
    * 添加新任务
    *
-   * @param newTask 新下载任务
+   * @param newTask 新任务
    */
-  private boolean putNewTask(TASK newTask) {
+  boolean putNewTask(TASK newTask) {
     String url = newTask.getKey();
     boolean s = mExecuteQueue.offer(newTask);
     Log.w(TAG, "任务添加" + (s ? "成功" : "失败，【" + url + "】"));
@@ -119,16 +121,13 @@ public class ExecutePool implements IPool {
   /**
    * 队列满时，将移除下载队列中的第一个任务
    */
-  private boolean pollFirstTask() {
+  boolean pollFirstTask() {
     try {
       TASK oldTask = mExecuteQueue.poll(TIME_OUT, TimeUnit.MICROSECONDS);
       if (oldTask == null) {
         Log.e(TAG, "移除任务失败");
         return false;
       }
-      if (oldTask.isHighestPriorityTask()) {
-        return false;
-      }
       oldTask.stop();
       String key = CommonUtil.keyToHashKey(oldTask.getKey());
       mExecuteMap.remove(key);
@@ -142,7 +141,7 @@ public class ExecutePool implements IPool {
   @Override public TASK pollTask() {
     synchronized (AriaManager.LOCK) {
       try {
-        TASK task = null;
+        TASK task;
         task = mExecuteQueue.poll(TIME_OUT, TimeUnit.MICROSECONDS);
         if (task != null) {
           String url = task.getKey();
@@ -173,22 +172,22 @@ public class ExecutePool implements IPool {
         Log.e(TAG, "任务不能为空");
         return false;
       } else {
-        String key = CommonUtil.keyToHashKey(task.getKey());
-        mExecuteMap.remove(key);
-        return mExecuteQueue.remove(task);
+        return removeTask(task.getKey());
       }
     }
   }
 
-  @Override public boolean removeTask(String downloadUrl) {
+  @Override public boolean removeTask(String key) {
     synchronized (AriaManager.LOCK) {
-      if (TextUtils.isEmpty(downloadUrl)) {
+      if (TextUtils.isEmpty(key)) {
         Log.e(TAG, "请传入有效的任务key");
         return false;
       }
-      String key = CommonUtil.keyToHashKey(downloadUrl);
-      TASK task = mExecuteMap.get(key);
-      mExecuteMap.remove(key);
+      String convertKey = CommonUtil.keyToHashKey(key);
+      TASK task = mExecuteMap.get(convertKey);
+      mExecuteMap.remove(convertKey);
+
+      DQueueMapping.getInstance().removeType(key);
       return mExecuteQueue.remove(task);
     }
   }
diff --git a/Aria/src/main/java/com/arialyy/aria/core/queue/pool/DownloadExecutePool.java b/Aria/src/main/java/com/arialyy/aria/core/queue/pool/DownloadExecutePool.java
new file mode 100644
index 00000000..6123a62b
--- /dev/null
+++ b/Aria/src/main/java/com/arialyy/aria/core/queue/pool/DownloadExecutePool.java
@@ -0,0 +1,82 @@
+/*
+ * Copyright (C) 2016 AriaLyy(https://github.com/AriaLyy/Aria)
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package com.arialyy.aria.core.queue.pool;
+
+import android.util.Log;
+import com.arialyy.aria.core.AriaManager;
+import com.arialyy.aria.core.inf.AbsTask;
+import com.arialyy.aria.util.CommonUtil;
+import java.util.Set;
+import java.util.concurrent.TimeUnit;
+
+/**
+ * Created by AriaL on 2017/6/29.
+ * 单个下载任务的执行池
+ */
+public class DownloadExecutePool extends BaseExecutePool {
+  private final String TAG = "DownloadExecutePool";
+
+  @Override protected int getMaxSize() {
+    return AriaManager.getInstance(AriaManager.APP).getDownloadConfig().getMaxTaskNum();
+  }
+
+  @Override public boolean putTask(TASK task) {
+    synchronized (AriaManager.LOCK) {
+      if (task == null) {
+        Log.e(TAG, "任务不能为空！！");
+        return false;
+      }
+      String url = task.getKey();
+      if (mExecuteQueue.contains(task)) {
+        Log.e(TAG, "队列中已经包含了该任务，任务key【" + url + "】");
+        return false;
+      } else {
+        if (mExecuteQueue.size() >= mSize) {
+          Set keys = mExecuteMap.keySet();
+          for (String key : keys) {
+            if (mExecuteMap.get(key).isHighestPriorityTask()) return false;
+          }
+          if (pollFirstTask()) {
+            return putNewTask(task);
+          }
+        } else {
+          return putNewTask(task);
+        }
+      }
+    }
+    return false;
+  }
+
+  @Override boolean pollFirstTask() {
+    try {
+      TASK oldTask = mExecuteQueue.poll(TIME_OUT, TimeUnit.MICROSECONDS);
+      if (oldTask == null) {
+        Log.e(TAG, "移除任务失败");
+        return false;
+      }
+      if (oldTask.isHighestPriorityTask()) {
+        return false;
+      }
+      oldTask.stop();
+      String key = CommonUtil.keyToHashKey(oldTask.getKey());
+      mExecuteMap.remove(key);
+    } catch (InterruptedException e) {
+      e.printStackTrace();
+      return false;
+    }
+    return true;
+  }
+}
diff --git a/Aria/src/main/java/com/arialyy/aria/core/queue/pool/DownloadSharePool.java b/Aria/src/main/java/com/arialyy/aria/core/queue/pool/DownloadSharePool.java
new file mode 100644
index 00000000..cd7625bd
--- /dev/null
+++ b/Aria/src/main/java/com/arialyy/aria/core/queue/pool/DownloadSharePool.java
@@ -0,0 +1,43 @@
+/*
+ * Copyright (C) 2016 AriaLyy(https://github.com/AriaLyy/Aria)
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package com.arialyy.aria.core.queue.pool;
+
+import com.arialyy.aria.core.AriaManager;
+
+/**
+ * Created by Aria.Lao on 2017/7/17.
+ * 下载任务池，该池子为简单任务和任务组共用
+ */
+public class DownloadSharePool {
+  private static volatile DownloadSharePool INSTANCE;
+
+  public DownloadExecutePool executePool;
+  public BaseCachePool cachePool;
+
+  private DownloadSharePool() {
+    executePool = new DownloadExecutePool<>();
+    cachePool = new BaseCachePool<>();
+  }
+
+  public static DownloadSharePool getInstance() {
+    if (INSTANCE == null) {
+      synchronized (AriaManager.LOCK) {
+        INSTANCE = new DownloadSharePool();
+      }
+    }
+    return INSTANCE;
+  }
+}
diff --git a/Aria/src/main/java/com/arialyy/aria/core/queue/pool/IPool.java b/Aria/src/main/java/com/arialyy/aria/core/queue/pool/IPool.java
index 53378e9c..ae6ab6c7 100644
--- a/Aria/src/main/java/com/arialyy/aria/core/queue/pool/IPool.java
+++ b/Aria/src/main/java/com/arialyy/aria/core/queue/pool/IPool.java
@@ -16,24 +16,24 @@
 
 package com.arialyy.aria.core.queue.pool;
 
-import com.arialyy.aria.core.inf.ITask;
+import com.arialyy.aria.core.inf.AbsTask;
 
 /**
  * Created by lyy on 2016/8/14.
  * 任务池
  */
-public interface IPool {
+interface IPool {
   /**
    * 将下载任务添加到任务池中
    */
-  public boolean putTask(T task);
+  boolean putTask(T task);
 
   /**
    * 按照队列原则取出下载任务
    *
    * @return 返回null或者下载任务
    */
-  public T pollTask();
+  T pollTask();
 
   /**
    * 通过下载链接获取下载任务，当任务不为空时，队列将删除该下载任务
@@ -41,7 +41,7 @@ public interface IPool {
    * @param downloadUrl 下载链接
    * @return 返回null或者下载任务
    */
-  public T getTask(String downloadUrl);
+  T getTask(String downloadUrl);
 
   /**
    * 删除任务池中的下载任务
@@ -49,20 +49,20 @@ public interface IPool {
    * @param task 下载任务
    * @return true:移除成功
    */
-  public boolean removeTask(T task);
+  boolean removeTask(T task);
 
   /**
-   * 通过下载链接移除下载任务
+   * 通过key除下载任务
    *
-   * @param downloadUrl 下载链接
+   * @param key 下载链接
    * @return true:移除成功
    */
-  public boolean removeTask(String downloadUrl);
+  boolean removeTask(String key);
 
   /**
    * 池子大小
    *
-   * @return 返回缓存池或者当前任务池大小
+   * @return 返回缓存池或者执行池大小
    */
-  public int size();
+  int size();
 }
\ No newline at end of file
diff --git a/Aria/src/main/java/com/arialyy/aria/core/queue/pool/UploadExecutePool.java b/Aria/src/main/java/com/arialyy/aria/core/queue/pool/UploadExecutePool.java
new file mode 100644
index 00000000..b5437f2c
--- /dev/null
+++ b/Aria/src/main/java/com/arialyy/aria/core/queue/pool/UploadExecutePool.java
@@ -0,0 +1,28 @@
+/*
+ * Copyright (C) 2016 AriaLyy(https://github.com/AriaLyy/Aria)
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package com.arialyy.aria.core.queue.pool;
+
+import com.arialyy.aria.core.AriaManager;
+import com.arialyy.aria.core.inf.AbsTask;
+
+/**
+ * Created by Aria.Lao on 2017/7/17.
+ */
+public class UploadExecutePool extends BaseExecutePool {
+  @Override protected int getMaxSize() {
+    return AriaManager.getInstance(AriaManager.APP).getUploadConfig().getMaxTaskNum();
+  }
+}
diff --git a/Aria/src/main/java/com/arialyy/aria/core/queue/pool/UploadSharePool.java b/Aria/src/main/java/com/arialyy/aria/core/queue/pool/UploadSharePool.java
new file mode 100644
index 00000000..f75af152
--- /dev/null
+++ b/Aria/src/main/java/com/arialyy/aria/core/queue/pool/UploadSharePool.java
@@ -0,0 +1,43 @@
+/*
+ * Copyright (C) 2016 AriaLyy(https://github.com/AriaLyy/Aria)
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package com.arialyy.aria.core.queue.pool;
+
+import com.arialyy.aria.core.AriaManager;
+
+/**
+ * Created by Aria.Lao on 2017/7/17.
+ * 下载任务池，该池子为简单任务和任务组共用
+ */
+public class UploadSharePool {
+  private static volatile UploadSharePool INSTANCE;
+
+  public UploadExecutePool executePool;
+  public BaseCachePool cachePool;
+
+  private UploadSharePool() {
+    executePool = new UploadExecutePool();
+    cachePool = new BaseCachePool<>();
+  }
+
+  public static UploadSharePool getInstance() {
+    if (INSTANCE == null) {
+      synchronized (AriaManager.LOCK) {
+        INSTANCE = new UploadSharePool();
+      }
+    }
+    return INSTANCE;
+  }
+}
diff --git a/Aria/src/main/java/com/arialyy/aria/core/scheduler/AbsSchedulers.java b/Aria/src/main/java/com/arialyy/aria/core/scheduler/AbsSchedulers.java
index f53bf4e7..8e40eacb 100644
--- a/Aria/src/main/java/com/arialyy/aria/core/scheduler/AbsSchedulers.java
+++ b/Aria/src/main/java/com/arialyy/aria/core/scheduler/AbsSchedulers.java
@@ -21,9 +21,9 @@ import android.util.Log;
 import com.arialyy.aria.core.AriaManager;
 import com.arialyy.aria.core.download.DownloadTask;
 import com.arialyy.aria.core.inf.AbsEntity;
+import com.arialyy.aria.core.inf.AbsTask;
 import com.arialyy.aria.core.inf.AbsTaskEntity;
 import com.arialyy.aria.core.inf.IEntity;
-import com.arialyy.aria.core.inf.ITask;
 import com.arialyy.aria.core.queue.ITaskQueue;
 import com.arialyy.aria.core.upload.UploadTask;
 import java.util.Iterator;
@@ -33,28 +33,32 @@ import java.util.concurrent.ConcurrentHashMap;
 
 /**
  * Created by lyy on 2017/6/4.
+ * 事件调度器，用于处理任务状态的调度
  */
-public abstract class AbsSchedulers, QUEUE extends ITaskQueue>
+abstract class AbsSchedulers, QUEUE extends ITaskQueue>
     implements ISchedulers {
-  private static final String TAG = "AbsSchedulers";
+  private final String TAG = "AbsSchedulers";
 
-  /**
-   * 下载的动态生成的代理类后缀
-   */
-  String DOWNLOAD_PROXY_CLASS_SUFFIX = "$$DownloadListenerProxy";
-
-  /**
-   * 上传的动态生成的代理类后缀
-   */
-  String UPLOAD_PROXY_CLASS_SUFFIX = "$$UploadListenerProxy";
+  static final int DOWNLOAD = 0xa1;
+  static final int UPLOAD = 0xa2;
+  static final int DOWNLOAD_GROUP = 0xa3;
 
   protected QUEUE mQueue;
-  protected boolean isDownload = true;
 
   private Map> mSchedulerListeners = new ConcurrentHashMap<>();
 
   private Map> mObservers = new ConcurrentHashMap<>();
 
+  /**
+   * 设置调度器类型
+   */
+  abstract int getSchedulerType();
+
+  /**
+   * 设置代理类后缀名
+   */
+  abstract String getProxySuffix();
+
   /**
    * @param targetName 观察者，创建该监听器的对象类名
    * @param schedulerListener {@link ISchedulerListener}
@@ -109,18 +113,14 @@ public abstract class AbsSchedulers createListener(String targetName) {
     AbsSchedulerListener listener = null;
     try {
-      Class clazz = Class.forName(
-          targetName + (isDownload ? DOWNLOAD_PROXY_CLASS_SUFFIX : UPLOAD_PROXY_CLASS_SUFFIX));
+      Class clazz = Class.forName(targetName + getProxySuffix());
       listener = (AbsSchedulerListener) clazz.newInstance();
     } catch (ClassNotFoundException e) {
       Log.e(TAG, targetName + "，没有Aria的Download或Upload注解方法");
-      //e.printStackTrace();
     } catch (InstantiationException e) {
       Log.e(TAG, e.getMessage());
-      //e.printStackTrace();
     } catch (IllegalAccessException e) {
       Log.e(TAG, e.getMessage());
-      //e.printStackTrace();
     }
     return listener;
   }
@@ -131,7 +131,6 @@ public abstract class AbsSchedulers 0;
+  }
+
+  /**
+   * 获取正在执行的队列数
+   */
+  int getExeTaskNum() {
+    return mQueue.getCurrentExePoolNum();
+  }
 }
diff --git a/Aria/src/main/java/com/arialyy/aria/core/scheduler/DQueueMapping.java b/Aria/src/main/java/com/arialyy/aria/core/scheduler/DQueueMapping.java
new file mode 100644
index 00000000..623a4a0e
--- /dev/null
+++ b/Aria/src/main/java/com/arialyy/aria/core/scheduler/DQueueMapping.java
@@ -0,0 +1,89 @@
+/*
+ * Copyright (C) 2016 AriaLyy(https://github.com/AriaLyy/Aria)
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package com.arialyy.aria.core.scheduler;
+
+import com.arialyy.aria.core.AriaManager;
+import com.arialyy.aria.core.queue.DownloadGroupTaskQueue;
+import com.arialyy.aria.core.queue.DownloadTaskQueue;
+import java.util.Iterator;
+import java.util.LinkedHashMap;
+import java.util.Map;
+
+/**
+ * Created by Aria.Lao on 2017/7/13.
+ * 下载任务和队列的映射表
+ */
+public class DQueueMapping {
+
+  public static final int QUEUE_TYPE_DOWNLOAD = 0xa1;
+  public static final int QUEUE_TYPE_DOWNLOAD_GROUP = 0xa2;
+  public static final int QUEUE_NONE = 0xab2;
+  private LinkedHashMap types = new LinkedHashMap<>();
+
+  private static volatile DQueueMapping instance = null;
+
+  private DQueueMapping() {
+
+  }
+
+  public static DQueueMapping getInstance() {
+    if (instance == null) {
+      synchronized (AriaManager.LOCK) {
+        instance = new DQueueMapping();
+      }
+    }
+    return instance;
+  }
+
+  /**
+   * map中增加类型
+   *
+   * @param key 任务的key
+   * @param type {@link #QUEUE_TYPE_DOWNLOAD}、{@link #QUEUE_TYPE_DOWNLOAD}
+   */
+  public void addType(String key, int type) {
+    types.put(key, type);
+  }
+
+  /**
+   * @param key 任务的key
+   */
+  public void removeType(String key) {
+    types.remove(key);
+  }
+
+  /**
+   * 获取下一个任务类型
+   *
+   * @return {@link #QUEUE_TYPE_DOWNLOAD}、{@link #QUEUE_TYPE_DOWNLOAD}
+   */
+  public int nextType() {
+    Iterator> iter = types.entrySet().iterator();
+    if (iter.hasNext()) {
+      Map.Entry next = iter.next();
+      int type = next.getValue();
+      iter.remove();
+      return type;
+    }
+    return QUEUE_NONE;
+  }
+
+  public boolean canStart() {
+    return DownloadTaskQueue.getInstance().getCurrentExePoolNum()
+        + DownloadGroupTaskQueue.getInstance().getCurrentExePoolNum() >= AriaManager.getInstance(
+        AriaManager.APP).getDownloadConfig().getMaxTaskNum();
+  }
+}
diff --git a/Aria/src/main/java/com/arialyy/aria/core/scheduler/DownloadGroupSchedulers.java b/Aria/src/main/java/com/arialyy/aria/core/scheduler/DownloadGroupSchedulers.java
new file mode 100644
index 00000000..dd4dde4a
--- /dev/null
+++ b/Aria/src/main/java/com/arialyy/aria/core/scheduler/DownloadGroupSchedulers.java
@@ -0,0 +1,74 @@
+/*
+ * Copyright (C) 2016 AriaLyy(https://github.com/AriaLyy/Aria)
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package com.arialyy.aria.core.scheduler;
+
+import com.arialyy.aria.core.AriaManager;
+import com.arialyy.aria.core.download.DownloadGroupEntity;
+import com.arialyy.aria.core.download.DownloadGroupTask;
+import com.arialyy.aria.core.download.DownloadGroupTaskEntity;
+import com.arialyy.aria.core.queue.DownloadGroupTaskQueue;
+
+/**
+ * Created by AriaL on 2017/7/2.
+ * 任务组调度器
+ */
+public class DownloadGroupSchedulers extends
+    AbsSchedulers {
+  private final String TAG = "DownloadGroupSchedulers";
+  private static volatile DownloadGroupSchedulers INSTANCE = null;
+
+  private DownloadGroupSchedulers() {
+    mQueue = DownloadGroupTaskQueue.getInstance();
+  }
+
+  public static DownloadGroupSchedulers getInstance() {
+    if (INSTANCE == null) {
+      synchronized (AriaManager.LOCK) {
+        INSTANCE = new DownloadGroupSchedulers();
+      }
+    }
+    return INSTANCE;
+  }
+
+  @Override int getSchedulerType() {
+    return DOWNLOAD_GROUP;
+  }
+
+  @Override String getProxySuffix() {
+    return "$$DownloadGroupListenerProxy";
+  }
+
+  @Override protected void startNextTask() {
+    if (getExeTaskNum() + DownloadSchedulers.getInstance().getExeTaskNum()
+        >= AriaManager.getInstance(AriaManager.APP).getDownloadConfig().getMaxTaskNum()) {
+      return;
+    }
+    if (!DownloadSchedulers.getInstance().hasNextTask()) {
+      nextSelf();
+    } else {
+      Integer nextType = DQueueMapping.getInstance().nextType();
+      if (nextType == DQueueMapping.QUEUE_TYPE_DOWNLOAD) {
+        DownloadSchedulers.getInstance().nextSelf();
+      } else {
+        nextSelf();
+      }
+    }
+  }
+
+  void nextSelf() {
+    super.startNextTask();
+  }
+}
diff --git a/Aria/src/main/java/com/arialyy/aria/core/scheduler/DownloadSchedulers.java b/Aria/src/main/java/com/arialyy/aria/core/scheduler/DownloadSchedulers.java
index f6137abf..5226c13b 100644
--- a/Aria/src/main/java/com/arialyy/aria/core/scheduler/DownloadSchedulers.java
+++ b/Aria/src/main/java/com/arialyy/aria/core/scheduler/DownloadSchedulers.java
@@ -16,11 +16,13 @@
 
 package com.arialyy.aria.core.scheduler;
 
+import com.arialyy.aria.core.Aria;
 import com.arialyy.aria.core.AriaManager;
 import com.arialyy.aria.core.download.DownloadTaskEntity;
 import com.arialyy.aria.core.queue.DownloadTaskQueue;
 import com.arialyy.aria.core.download.DownloadEntity;
 import com.arialyy.aria.core.download.DownloadTask;
+import java.nio.MappedByteBuffer;
 
 /**
  * Created by lyy on 2016/8/16.
@@ -29,12 +31,11 @@ import com.arialyy.aria.core.download.DownloadTask;
 public class DownloadSchedulers
     extends AbsSchedulers {
 
-  private static final String TAG = "DownloadSchedulers";
+  private final String TAG = "DownloadSchedulers";
   private static volatile DownloadSchedulers INSTANCE = null;
 
   private DownloadSchedulers() {
     mQueue = DownloadTaskQueue.getInstance();
-    isDownload = true;
   }
 
   public static DownloadSchedulers getInstance() {
@@ -45,4 +46,33 @@ public class DownloadSchedulers
     }
     return INSTANCE;
   }
+
+  @Override int getSchedulerType() {
+    return DOWNLOAD;
+  }
+
+  @Override String getProxySuffix() {
+    return "$$DownloadListenerProxy";
+  }
+
+  @Override protected void startNextTask() {
+    if (getExeTaskNum() + DownloadGroupSchedulers.getInstance().getExeTaskNum()
+        >= AriaManager.getInstance(AriaManager.APP).getDownloadConfig().getMaxTaskNum()) {
+      return;
+    }
+    if (!DownloadGroupSchedulers.getInstance().hasNextTask()) {
+      nextSelf();
+    } else {
+      Integer nextType = DQueueMapping.getInstance().nextType();
+      if (nextType == DQueueMapping.QUEUE_TYPE_DOWNLOAD_GROUP) {
+        DownloadGroupSchedulers.getInstance().nextSelf();
+      } else {
+        nextSelf();
+      }
+    }
+  }
+
+  void nextSelf() {
+    super.startNextTask();
+  }
 }
diff --git a/Aria/src/main/java/com/arialyy/aria/core/scheduler/ISchedulers.java b/Aria/src/main/java/com/arialyy/aria/core/scheduler/ISchedulers.java
index 7549b55a..a88e1f29 100644
--- a/Aria/src/main/java/com/arialyy/aria/core/scheduler/ISchedulers.java
+++ b/Aria/src/main/java/com/arialyy/aria/core/scheduler/ISchedulers.java
@@ -17,54 +17,54 @@
 package com.arialyy.aria.core.scheduler;
 
 import android.os.Handler;
-import com.arialyy.aria.core.inf.ITask;
+import com.arialyy.aria.core.inf.AbsTask;
 
 /**
  * Created by lyy on 2016/11/2.
  * 调度器功能接口
  */
-public interface ISchedulers extends Handler.Callback {
+public interface ISchedulers extends Handler.Callback {
   /**
    * 断点支持
    */
-  public static final int SUPPORT_BREAK_POINT = 9;
+  int SUPPORT_BREAK_POINT = 9;
   /**
    * 任务预加载
    */
-  public static final int PRE = 0;
+  int PRE = 0;
   /**
    * 任务预加载完成
    */
-  public static final int POST_PRE = 1;
+  int POST_PRE = 1;
 
   /**
    * 任务开始
    */
-  public static final int START = 2;
+  int START = 2;
   /**
    * 任务停止
    */
-  public static final int STOP = 3;
+  int STOP = 3;
   /**
    * 任务失败
    */
-  public static final int FAIL = 4;
+  int FAIL = 4;
   /**
    * 任务取消
    */
-  public static final int CANCEL = 5;
+  int CANCEL = 5;
   /**
    * 任务完成
    */
-  public static final int COMPLETE = 6;
+  int COMPLETE = 6;
   /**
    * 任务处理中
    */
-  public static final int RUNNING = 7;
+  int RUNNING = 7;
   /**
    * 恢复任务
    */
-  public static final int RESUME = 8;
+  int RESUME = 8;
 
   /**
    * 注册下载器监听，一个观察者只能注册一次监听
@@ -72,26 +72,25 @@ public interface ISchedulers extends Handler.Callback {
    * @param targetName 观察者，创建该监听器的对象类名
    * @param schedulerListener {@link ISchedulerListener}
    */
-  public void addSchedulerListener(String targetName, ISchedulerListener schedulerListener);
+  void addSchedulerListener(String targetName, ISchedulerListener schedulerListener);
 
   /**
    * @param targetName 观察者，创建该监听器的对象类名
    * 取消注册监听器
    */
-  public void removeSchedulerListener(String targetName,
-      ISchedulerListener schedulerListener);
+  void removeSchedulerListener(String targetName, ISchedulerListener schedulerListener);
 
   /**
    * 将当前类注册到Aria
    *
    * @param obj 观察者类
    */
-  public void register(Object obj);
+  void register(Object obj);
 
   /**
    * 移除注册
    *
    * @param obj 观察者类
    */
-  public void unRegister(Object obj);
+  void unRegister(Object obj);
 }
\ No newline at end of file
diff --git a/Aria/src/main/java/com/arialyy/aria/core/scheduler/UploadSchedulers.java b/Aria/src/main/java/com/arialyy/aria/core/scheduler/UploadSchedulers.java
index c3dfd361..be260d57 100644
--- a/Aria/src/main/java/com/arialyy/aria/core/scheduler/UploadSchedulers.java
+++ b/Aria/src/main/java/com/arialyy/aria/core/scheduler/UploadSchedulers.java
@@ -32,7 +32,6 @@ public class UploadSchedulers
 
   private UploadSchedulers() {
     mQueue = UploadTaskQueue.getInstance();
-    isDownload = false;
   }
 
   public static UploadSchedulers getInstance() {
@@ -44,4 +43,12 @@ public class UploadSchedulers
 
     return INSTANCE;
   }
+
+  @Override int getSchedulerType() {
+    return UPLOAD;
+  }
+
+  @Override String getProxySuffix() {
+    return "$$UploadListenerProxy";
+  }
 }
diff --git a/Aria/src/main/java/com/arialyy/aria/core/upload/IUploadListener.java b/Aria/src/main/java/com/arialyy/aria/core/upload/IUploadListener.java
index 02a9e28c..2a8cab14 100644
--- a/Aria/src/main/java/com/arialyy/aria/core/upload/IUploadListener.java
+++ b/Aria/src/main/java/com/arialyy/aria/core/upload/IUploadListener.java
@@ -15,60 +15,12 @@
  */
 package com.arialyy.aria.core.upload;
 
+import com.arialyy.aria.core.inf.IEventListener;
+
 /**
  * Created by lyy on 2017/2/9.
  * 上传监听
  */
-public interface IUploadListener {
+interface IUploadListener extends IEventListener {
 
-  /**
-   * 预处理
-   */
-  public void onPre();
-
-  /**
-   * 预处理完成
-   */
-  public void onPostPre(long fileSize);
-
-  /**
-   * 开始上传
-   */
-  public void onStart();
-
-  /**
-   * 恢复上传
-   *
-   * @param resumeLocation 上次上传停止位置
-   */
-  public void onResume(long resumeLocation);
-
-  /**
-   * 停止上传
-   *
-   * @param stopLocation 上传停止位置
-   */
-  public void onStop(long stopLocation);
-
-  /**
-   * 上传进度
-   *
-   * @param currentLocation 当前进度
-   */
-  public void onProgress(long currentLocation);
-
-  /**
-   * 取消上传
-   */
-  public void onCancel();
-
-  /**
-   * 上传成功
-   */
-  public void onComplete();
-
-  /**
-   * 上传失败
-   */
-  public void onFail();
 }
diff --git a/Aria/src/main/java/com/arialyy/aria/core/upload/ProxyHelper.java b/Aria/src/main/java/com/arialyy/aria/core/upload/ProxyHelper.java
new file mode 100644
index 00000000..7162301a
--- /dev/null
+++ b/Aria/src/main/java/com/arialyy/aria/core/upload/ProxyHelper.java
@@ -0,0 +1,78 @@
+/*
+ * Copyright (C) 2016 AriaLyy(https://github.com/AriaLyy/Aria)
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package com.arialyy.aria.core.upload;
+
+import com.arialyy.aria.core.AriaManager;
+import java.lang.reflect.InvocationTargetException;
+import java.lang.reflect.Method;
+import java.util.Set;
+
+import static java.util.Collections.unmodifiableSet;
+
+/**
+ * Created by Aria.Lao on 2017/7/10.
+ * 代理参数获取
+ */
+public class ProxyHelper {
+  public Set downloadCounter, uploadCounter, downloadGroupCounter;
+
+  public static volatile ProxyHelper INSTANCE = null;
+
+  private ProxyHelper() {
+    init();
+  }
+
+  public static ProxyHelper getInstance() {
+    if (INSTANCE == null) {
+      synchronized (AriaManager.LOCK) {
+        INSTANCE = new ProxyHelper();
+      }
+    }
+    return INSTANCE;
+  }
+
+  private void init() {
+    try {
+      Class clazz = Class.forName("com.arialyy.aria.ProxyClassCounter");
+      Method download = clazz.getMethod("getDownloadCounter");
+      Method downloadGroup = clazz.getMethod("getDownloadGroupCounter");
+      Method upload = clazz.getMethod("getUploadCounter");
+      Object object = clazz.newInstance();
+      Object dc = download.invoke(object);
+      if (dc != null) {
+        downloadCounter = unmodifiableSet((Set) dc);
+      }
+      Object dgc = downloadGroup.invoke(object);
+      if (dgc != null) {
+        downloadGroupCounter = unmodifiableSet((Set) dgc);
+      }
+      Object uc = upload.invoke(object);
+      if (uc != null) {
+        uploadCounter = unmodifiableSet((Set) uc);
+      }
+    } catch (ClassNotFoundException e) {
+      e.printStackTrace();
+    } catch (InstantiationException e) {
+      e.printStackTrace();
+    } catch (IllegalAccessException e) {
+      e.printStackTrace();
+    } catch (NoSuchMethodException e) {
+      e.printStackTrace();
+    } catch (InvocationTargetException e) {
+      e.printStackTrace();
+    }
+  }
+}
diff --git a/Aria/src/main/java/com/arialyy/aria/core/upload/UploadEntity.java b/Aria/src/main/java/com/arialyy/aria/core/upload/UploadEntity.java
index dafc69d9..05bfc5cf 100644
--- a/Aria/src/main/java/com/arialyy/aria/core/upload/UploadEntity.java
+++ b/Aria/src/main/java/com/arialyy/aria/core/upload/UploadEntity.java
@@ -17,25 +17,18 @@ package com.arialyy.aria.core.upload;
 
 import android.os.Parcel;
 import android.os.Parcelable;
-import com.arialyy.aria.core.inf.AbsEntity;
+import com.arialyy.aria.core.inf.AbsNormalEntity;
 import com.arialyy.aria.orm.Ignore;
+import com.arialyy.aria.orm.Primary;
 
 /**
  * Created by lyy on 2017/2/9.
  * 上传文件实体
  */
-public class UploadEntity extends AbsEntity implements Parcelable {
-
+public class UploadEntity extends AbsNormalEntity implements Parcelable {
+  @Primary
   private String filePath;  //文件路径
-  private boolean isComplete = false;
 
-  public boolean isComplete() {
-    return isComplete;
-  }
-
-  public void setComplete(boolean complete) {
-    isComplete = complete;
-  }
 
   public String getFilePath() {
     return filePath;
@@ -45,6 +38,10 @@ public class UploadEntity extends AbsEntity implements Parcelable {
     this.filePath = filePath;
   }
 
+  @Override public String getKey() {
+    return filePath;
+  }
+
   public UploadEntity() {
   }
 
@@ -55,13 +52,11 @@ public class UploadEntity extends AbsEntity implements Parcelable {
   @Override public void writeToParcel(Parcel dest, int flags) {
     super.writeToParcel(dest, flags);
     dest.writeString(this.filePath);
-    dest.writeByte(this.isComplete ? (byte) 1 : (byte) 0);
   }
 
   protected UploadEntity(Parcel in) {
     super(in);
     this.filePath = in.readString();
-    this.isComplete = in.readByte() != 0;
   }
 
   @Ignore public static final Creator CREATOR = new Creator() {
diff --git a/Aria/src/main/java/com/arialyy/aria/core/upload/UploadListener.java b/Aria/src/main/java/com/arialyy/aria/core/upload/UploadListener.java
index b8cfcb6a..a4c432ae 100644
--- a/Aria/src/main/java/com/arialyy/aria/core/upload/UploadListener.java
+++ b/Aria/src/main/java/com/arialyy/aria/core/upload/UploadListener.java
@@ -18,8 +18,7 @@ package com.arialyy.aria.core.upload;
 /**
  * Created by lyy on 2017/2/23.
  */
-
-public class UploadListener implements IUploadListener {
+class UploadListener implements IUploadListener {
   @Override public void onPre() {
 
   }
@@ -28,7 +27,7 @@ public class UploadListener implements IUploadListener {
 
   }
 
-  @Override public void onStart() {
+  @Override public void onStart(long startLocation) {
 
   }
 
diff --git a/Aria/src/main/java/com/arialyy/aria/core/upload/UploadReceiver.java b/Aria/src/main/java/com/arialyy/aria/core/upload/UploadReceiver.java
index 38e71953..eab63b7c 100644
--- a/Aria/src/main/java/com/arialyy/aria/core/upload/UploadReceiver.java
+++ b/Aria/src/main/java/com/arialyy/aria/core/upload/UploadReceiver.java
@@ -17,30 +17,24 @@ package com.arialyy.aria.core.upload;
 
 import android.support.annotation.NonNull;
 import com.arialyy.aria.core.AriaManager;
-import com.arialyy.aria.core.command.AbsCmd;
-import com.arialyy.aria.core.command.CmdFactory;
-import com.arialyy.aria.core.download.DownloadReceiver;
-import com.arialyy.aria.core.inf.IEntity;
+import com.arialyy.aria.core.command.normal.NormalCmdFactory;
+import com.arialyy.aria.core.download.DownloadTaskEntity;
+import com.arialyy.aria.core.inf.AbsReceiver;
 import com.arialyy.aria.core.inf.IReceiver;
-import com.arialyy.aria.core.scheduler.DownloadSchedulers;
 import com.arialyy.aria.core.scheduler.ISchedulerListener;
 import com.arialyy.aria.core.scheduler.UploadSchedulers;
 import com.arialyy.aria.orm.DbEntity;
 import com.arialyy.aria.util.CheckUtil;
 import com.arialyy.aria.util.CommonUtil;
-import java.util.ArrayList;
 import java.util.List;
 import java.util.Set;
-import java.util.regex.Pattern;
 
 /**
  * Created by lyy on 2017/2/6.
  * 上传功能接收器
  */
-public class UploadReceiver implements IReceiver {
+public class UploadReceiver extends AbsReceiver {
   private static final String TAG = "DownloadReceiver";
-  public String targetName;
-  public Object obj;
   public ISchedulerListener listener;
 
   /**
@@ -50,17 +44,7 @@ public class UploadReceiver implements IReceiver {
    */
   public UploadTarget load(@NonNull String filePath) {
     CheckUtil.checkUploadPath(filePath);
-    UploadEntity entity = UploadEntity.findData(UploadEntity.class, "filePath=?", filePath);
-    if (entity == null) {
-      entity = new UploadEntity();
-    }
-    String regex = "[/|\\\\|//]";
-    Pattern p = Pattern.compile(regex);
-    String[] strs = p.split(filePath);
-    String fileName = strs[strs.length - 1];
-    entity.setFileName(fileName);
-    entity.setFilePath(filePath);
-    return new UploadTarget(entity, targetName);
+    return new UploadTarget(filePath, targetName);
   }
 
   /**
@@ -68,41 +52,39 @@ public class UploadReceiver implements IReceiver {
    */
   public UploadEntity getUploadEntity(String filePath) {
     CheckUtil.checkUploadPath(filePath);
-    return DbEntity.findData(UploadEntity.class, "filePath=?", filePath);
+    return DbEntity.findFirst(UploadEntity.class, "filePath=?", filePath);
   }
 
   /**
    * 下载任务是否存在
    */
   @Override public boolean taskExists(String filePath) {
-    return DbEntity.findData(UploadEntity.class, "filePath=?", filePath) != null;
+    return DbEntity.findFirst(UploadEntity.class, "filePath=?", filePath) != null;
   }
 
-  @Override public List getTaskList() {
+  @Override public List getSimpleTaskList() {
     return DbEntity.findAllData(UploadEntity.class);
   }
 
   @Override public void stopAllTask() {
-    List allEntity = DbEntity.findAllData(UploadEntity.class);
-    List stopCmds = new ArrayList<>();
-    for (UploadEntity entity : allEntity) {
-      if (entity.getState() == IEntity.STATE_RUNNING) {
-        stopCmds.add(
-            CommonUtil.createCmd(targetName, new UploadTaskEntity(entity), CmdFactory.TASK_STOP));
-      }
-    }
-    AriaManager.getInstance(AriaManager.APP).setCmds(stopCmds).exe();
+    AriaManager.getInstance(AriaManager.APP)
+        .setCmd(NormalCmdFactory.getInstance()
+            .createCmd(targetName, new UploadTaskEntity(), NormalCmdFactory.TASK_STOP_ALL))
+        .exe();
   }
 
-  @Override public void removeAllTask() {
+  /**
+   * 删除所有任务
+   *
+   * @param removeFile {@code true} 删除已经上传完成的任务，不仅删除上传记录，还会删除已经上传完成的文件，{@code false}
+   * 如果文件已经上传完成，只删除上传记录
+   */
+  @Override public void removeAllTask(boolean removeFile) {
     final AriaManager am = AriaManager.getInstance(AriaManager.APP);
-    List allEntity = DbEntity.findAllData(UploadEntity.class);
-    List cancelCmds = new ArrayList<>();
-    for (UploadEntity entity : allEntity) {
-      cancelCmds.add(
-          CommonUtil.createCmd(targetName, new UploadTaskEntity(entity), CmdFactory.TASK_CANCEL));
-    }
-    am.setCmds(cancelCmds).exe();
+
+    am.setCmd(CommonUtil.createCmd(targetName, new DownloadTaskEntity(),
+        NormalCmdFactory.TASK_CANCEL_ALL)).exe();
+
     Set keys = am.getReceiver().keySet();
     for (String key : keys) {
       IReceiver receiver = am.getReceiver().get(key);
@@ -118,14 +100,19 @@ public class UploadReceiver implements IReceiver {
 
   /**
    * 添加调度器回调
+   *
+   * @see #register()
    */
-  public UploadReceiver addSchedulerListener(ISchedulerListener listener) {
+  @Deprecated public UploadReceiver addSchedulerListener(ISchedulerListener listener) {
     this.listener = listener;
     UploadSchedulers.getInstance().addSchedulerListener(targetName, listener);
     return this;
   }
 
-  @Override public void removeSchedulerListener() {
+  /**
+   * @see #unRegister()
+   */
+  @Deprecated @Override public void removeSchedulerListener() {
     if (listener != null) {
       UploadSchedulers.getInstance().removeSchedulerListener(targetName, listener);
     }
@@ -135,11 +122,19 @@ public class UploadReceiver implements IReceiver {
    * 将当前类注册到Aria
    */
   public UploadReceiver register() {
-    UploadSchedulers.getInstance().register(obj);
+    String className = obj.getClass().getName();
+    Set cCounter = ProxyHelper.getInstance().uploadCounter;
+    if (cCounter != null && cCounter.contains(className)) {
+      UploadSchedulers.getInstance().register(obj);
+    }
     return this;
   }
 
   @Override public void unRegister() {
-    UploadSchedulers.getInstance().unRegister(obj);
+    String className = obj.getClass().getName();
+    Set dCounter = ProxyHelper.getInstance().uploadCounter;
+    if (dCounter != null && dCounter.contains(className)) {
+      UploadSchedulers.getInstance().unRegister(obj);
+    }
   }
 }
\ No newline at end of file
diff --git a/Aria/src/main/java/com/arialyy/aria/core/upload/UploadTarget.java b/Aria/src/main/java/com/arialyy/aria/core/upload/UploadTarget.java
index 1868d51c..dd372289 100644
--- a/Aria/src/main/java/com/arialyy/aria/core/upload/UploadTarget.java
+++ b/Aria/src/main/java/com/arialyy/aria/core/upload/UploadTarget.java
@@ -16,28 +16,49 @@
 package com.arialyy.aria.core.upload;
 
 import android.support.annotation.NonNull;
-import com.arialyy.aria.core.RequestEnum;
-import com.arialyy.aria.core.inf.AbsTarget;
+import com.arialyy.aria.core.inf.AbsNormalTarget;
 import com.arialyy.aria.core.queue.UploadTaskQueue;
 import com.arialyy.aria.orm.DbEntity;
-import java.util.Map;
+import java.util.regex.Pattern;
 
 /**
  * Created by lyy on 2017/2/28.
  */
-public class UploadTarget extends AbsTarget {
+public class UploadTarget extends AbsNormalTarget {
 
-  UploadTarget(UploadEntity entity, String targetName) {
-    this.entity = entity;
-    this.targetName = targetName;
-    taskEntity = new UploadTaskEntity(entity);
+  UploadTarget(String filePath, String targetName) {
+    this.mTargetName = targetName;
+    mTaskEntity = DbEntity.findFirst(UploadTaskEntity.class, "key=?", filePath);
+    if (mTaskEntity == null) {
+      mTaskEntity = new UploadTaskEntity();
+      mTaskEntity.entity = getUploadEntity(filePath);
+    }
+    if (mTaskEntity.entity == null) {
+      mTaskEntity.entity = getUploadEntity(filePath);
+    }
+    mEntity = mTaskEntity.entity;
+  }
+
+  private UploadEntity getUploadEntity(String filePath) {
+    UploadEntity entity = UploadEntity.findFirst(UploadEntity.class, "filePath=?", filePath);
+    if (entity == null) {
+      entity = new UploadEntity();
+      String regex = "[/|\\\\|//]";
+      Pattern p = Pattern.compile(regex);
+      String[] strs = p.split(filePath);
+      String fileName = strs[strs.length - 1];
+      entity.setFileName(fileName);
+      entity.setFilePath(filePath);
+      entity.insert();
+    }
+    return entity;
   }
 
   /**
    * 设置userAgent
    */
   public UploadTarget setUserAngent(@NonNull String userAgent) {
-    taskEntity.userAgent = userAgent;
+    mTaskEntity.userAgent = userAgent;
     return this;
   }
 
@@ -47,7 +68,7 @@ public class UploadTarget extends AbsTarget {
    * @param uploadUrl 上传路径
    */
   public UploadTarget setUploadUrl(@NonNull String uploadUrl) {
-    taskEntity.uploadUrl = uploadUrl;
+    mTaskEntity.uploadUrl = uploadUrl;
     return this;
   }
 
@@ -57,7 +78,7 @@ public class UploadTarget extends AbsTarget {
    * @param attachment 附件key
    */
   public UploadTarget setAttachment(@NonNull String attachment) {
-    taskEntity.attachment = attachment;
+    mTaskEntity.attachment = attachment;
     return this;
   }
 
@@ -65,7 +86,7 @@ public class UploadTarget extends AbsTarget {
    * 设置文件名
    */
   public UploadTarget setFileName(String fileName) {
-    entity.setFileName(fileName);
+    mEntity.setFileName(fileName);
     return this;
   }
 
@@ -75,28 +96,7 @@ public class UploadTarget extends AbsTarget {
    * @param contentType tip：multipart/form-data
    */
   public UploadTarget setContentType(String contentType) {
-    taskEntity.contentType = contentType;
-    return this;
-  }
-
-  /**
-   * 给url请求添加头部
-   *
-   * @param key 头部key
-   * @param header 头部value
-   */
-  public UploadTarget addHeader(@NonNull String key, @NonNull String header) {
-    super._addHeader(key, header);
-    return this;
-  }
-
-  /**
-   * 给url请求添加头部
-   *
-   * @param headers key为http头部的key，Value为http头对应的配置
-   */
-  public UploadTarget addHeaders(Map headers) {
-    super._addHeaders(headers);
+    mTaskEntity.contentType = contentType;
     return this;
   }
 
@@ -104,28 +104,14 @@ public class UploadTarget extends AbsTarget {
    * 下载任务是否存在
    */
   @Override public boolean taskExists() {
-    return UploadTaskQueue.getInstance().getTask(entity.getFilePath()) != null;
-  }
-
-  /**
-   * 设置请求类型
-   *
-   * @param requestEnum {@link RequestEnum}
-   */
-  public UploadTarget setRequestMode(RequestEnum requestEnum) {
-    super._setRequestMode(requestEnum);
-    return this;
-  }
-
-  private UploadEntity getDownloadEntity() {
-    return entity;
+    return UploadTaskQueue.getInstance().getTask(mEntity.getFilePath()) != null;
   }
 
   /**
    * 是否在下载
    */
   public boolean isUploading() {
-    UploadTask task = UploadTaskQueue.getInstance().getTask(entity);
+    UploadTask task = UploadTaskQueue.getInstance().getTask(mEntity);
     return task != null && task.isRunning();
   }
 }
diff --git a/Aria/src/main/java/com/arialyy/aria/core/upload/UploadUtil.java b/Aria/src/main/java/com/arialyy/aria/core/upload/UploadUtil.java
index 88a87caa..c0ee07d7 100644
--- a/Aria/src/main/java/com/arialyy/aria/core/upload/UploadUtil.java
+++ b/Aria/src/main/java/com/arialyy/aria/core/upload/UploadUtil.java
@@ -51,7 +51,7 @@ final class UploadUtil implements Runnable {
   UploadUtil(UploadTaskEntity taskEntity, IUploadListener listener) {
     mTaskEntity = taskEntity;
     CheckUtil.checkTaskEntity(taskEntity);
-    mUploadEntity = taskEntity.uploadEntity;
+    mUploadEntity = taskEntity.getEntity();
     if (listener == null) {
       throw new IllegalArgumentException("上传监听不能为空");
     }
@@ -109,7 +109,7 @@ final class UploadUtil implements Runnable {
       for (String key : keys) {
         addFormField(writer, key, mTaskEntity.formFields.get(key));
       }
-      mListener.onStart();
+      mListener.onStart(0);
       uploadFile(writer, mTaskEntity.attachment, uploadFile);
       Log.d(TAG, finish(writer) + "");
     } catch (IOException e) {
@@ -162,11 +162,11 @@ final class UploadUtil implements Runnable {
     writer.append("Content-Disposition: form-data; name=\"")
         .append(attachment)
         .append("\"; filename=\"")
-        .append(mTaskEntity.uploadEntity.getFileName())
+        .append(mTaskEntity.getEntity().getFileName())
         .append("\"")
         .append(LINE_END);
     writer.append("Content-Type: ")
-        .append(URLConnection.guessContentTypeFromName(mTaskEntity.uploadEntity.getFileName()))
+        .append(URLConnection.guessContentTypeFromName(mTaskEntity.getEntity().getFileName()))
         .append(LINE_END);
     writer.append("Content-Transfer-Encoding: binary").append(LINE_END);
     writer.append(LINE_END);
diff --git a/Aria/src/main/java/com/arialyy/aria/orm/DBConfig.java b/Aria/src/main/java/com/arialyy/aria/orm/DBConfig.java
index faf40925..b8178ba5 100644
--- a/Aria/src/main/java/com/arialyy/aria/orm/DBConfig.java
+++ b/Aria/src/main/java/com/arialyy/aria/orm/DBConfig.java
@@ -17,7 +17,11 @@ package com.arialyy.aria.orm;
 
 import android.text.TextUtils;
 import com.arialyy.aria.core.download.DownloadEntity;
+import com.arialyy.aria.core.download.DownloadGroupEntity;
+import com.arialyy.aria.core.download.DownloadGroupTaskEntity;
+import com.arialyy.aria.core.download.DownloadTaskEntity;
 import com.arialyy.aria.core.upload.UploadEntity;
+import com.arialyy.aria.core.upload.UploadTaskEntity;
 import java.util.HashMap;
 import java.util.Map;
 
@@ -28,7 +32,7 @@ import java.util.Map;
 public class DBConfig {
   static Map mapping = new HashMap<>();
   static String DB_NAME;
-  static int VERSION = 3;
+  static int VERSION = 10;
 
   static {
     if (TextUtils.isEmpty(DB_NAME)) {
@@ -41,6 +45,10 @@ public class DBConfig {
 
   static {
     mapping.put("DownloadEntity", DownloadEntity.class);
+    mapping.put("DownloadGroupEntity", DownloadGroupEntity.class);
+    mapping.put("DownloadTaskEntity", DownloadTaskEntity.class);
+    mapping.put("DownloadGroupTaskEntity", DownloadGroupTaskEntity.class);
     mapping.put("UploadEntity", UploadEntity.class);
+    mapping.put("UploadTaskEntity", UploadTaskEntity.class);
   }
 }
diff --git a/Aria/src/main/java/com/arialyy/aria/orm/DbEntity.java b/Aria/src/main/java/com/arialyy/aria/orm/DbEntity.java
index fc42e75c..f872e5d2 100644
--- a/Aria/src/main/java/com/arialyy/aria/orm/DbEntity.java
+++ b/Aria/src/main/java/com/arialyy/aria/orm/DbEntity.java
@@ -19,8 +19,10 @@ package com.arialyy.aria.orm;
 import android.support.annotation.NonNull;
 import com.arialyy.aria.util.CommonUtil;
 import java.lang.reflect.Field;
+import java.lang.reflect.Type;
 import java.util.ArrayList;
 import java.util.List;
+import java.util.Map;
 
 /**
  * Created by lyy on 2015/11/2.
@@ -34,6 +36,13 @@ public class DbEntity {
 
   }
 
+  /**
+   * 直接执行sql语句
+   */
+  public static void exeSql(String sql) {
+    DbUtil.getInstance().exeSql(sql);
+  }
+
   /**
    * 查询所有数据
    *
@@ -55,7 +64,7 @@ public class DbEntity {
   /**
    * 查询一组数据
    * 
-   * DownloadEntity.findData(DownloadEntity.class, "downloadUrl=?", downloadUrl);
+   * DownloadEntity.findFirst(DownloadEntity.class, "downloadUrl=?", downloadUrl);
    * 
    *
    * @return 没有数据返回null
@@ -68,12 +77,12 @@ public class DbEntity {
   /**
    * 查询一行数据
    * 
-   * DownloadEntity.findData(DownloadEntity.class, "downloadUrl=?", downloadUrl);
+   * DownloadEntity.findFirst(DownloadEntity.class, "downloadUrl=?", downloadUrl);
    * 
    *
    * @return 没有数据返回null
    */
-  public static  T findData(Class clazz, String... expression) {
+  public static  T findFirst(Class clazz, String... expression) {
     DbUtil util = DbUtil.getInstance();
     List datas = util.findData(clazz, expression);
     return datas == null ? null : datas.size() > 0 ? datas.get(0) : null;
@@ -97,7 +106,6 @@ public class DbEntity {
    * 删除当前数据
    */
   public void deleteData() {
-    //mUtil.delData(getClass(), new Object[] { "rowid" }, new Object[] { rowID });
     deleteData(getClass(), "rowid=?", rowID + "");
   }
 
@@ -124,7 +132,7 @@ public class DbEntity {
    */
   public void save() {
     synchronized (LOCK) {
-      if (DbUtil.getInstance().tableExists(getClass()) && thisIsExist()) {
+      if (thisIsExist()) {
         update();
       } else {
         insert();
@@ -136,7 +144,8 @@ public class DbEntity {
    * 查找数据在表中是否存在
    */
   private boolean thisIsExist() {
-    return findData(getClass(), "rowid=?", rowID + "") != null;
+    DbUtil util = DbUtil.getInstance();
+    return util.isExist(getClass(), rowID);
   }
 
   /**
@@ -147,7 +156,7 @@ public class DbEntity {
     updateRowID();
   }
 
-  private  T findData(Class clazz, @NonNull String[] wheres,
+  private  T findFirst(Class clazz, @NonNull String[] wheres,
       @NonNull String[] values) {
     DbUtil util = DbUtil.getInstance();
     List list = util.findData(clazz, wheres, values);
@@ -156,7 +165,7 @@ public class DbEntity {
 
   private void updateRowID() {
     try {
-      Field[] fields = CommonUtil.getFields(getClass());
+      List fields = CommonUtil.getAllFields(getClass());
       List where = new ArrayList<>();
       List values = new ArrayList<>();
       for (Field field : fields) {
@@ -165,9 +174,22 @@ public class DbEntity {
           continue;
         }
         where.add(field.getName());
-        values.add(field.get(this) + "");
+        Type type = field.getType();
+        if (SqlHelper.isOneToOne(field)) {
+          values.add(SqlHelper.getOneToOneParams(field));
+        } else if (type == List.class) {
+          if (SqlHelper.isOneToMany(field)) {
+            values.add(SqlHelper.getOneToManyElementParams(field));
+          } else {
+            values.add(SqlHelper.list2Str(this, field));
+          }
+        } else if (type == Map.class) {
+          values.add(SqlHelper.map2Str((Map) field.get(this)));
+        } else {
+          values.add(field.get(this) + "");
+        }
       }
-      DbEntity entity = findData(getClass(), where.toArray(new String[where.size()]),
+      DbEntity entity = findFirst(getClass(), where.toArray(new String[where.size()]),
           values.toArray(new String[values.size()]));
       if (entity != null) {
         rowID = entity.rowID;
diff --git a/Aria/src/main/java/com/arialyy/aria/orm/DbUtil.java b/Aria/src/main/java/com/arialyy/aria/orm/DbUtil.java
index e02fd7d4..32cf7b03 100644
--- a/Aria/src/main/java/com/arialyy/aria/orm/DbUtil.java
+++ b/Aria/src/main/java/com/arialyy/aria/orm/DbUtil.java
@@ -64,6 +64,13 @@ public class DbUtil {
     return INSTANCE;
   }
 
+  /**
+   * 执行sql语句
+   */
+  void exeSql(String sql) {
+    mDb.execSQL(sql);
+  }
+
   /**
    * 删除某条数据
    */
@@ -97,6 +104,18 @@ public class DbUtil {
     return SqlHelper.findData(mDb, clazz, expression);
   }
 
+  /**
+   * 通过rowId判断数据是否存在
+   */
+  synchronized  boolean isExist(Class clazz, int rowId) {
+    checkDb();
+    String sql = "SELECT rowid FROM " + CommonUtil.getClassName(clazz) + " WHERE rowid=" + rowId;
+    Cursor cursor = mDb.rawQuery(sql, null);
+    boolean isExist = cursor.getCount() > 0;
+    cursor.close();
+    return isExist;
+  }
+
   /**
    * 条件查寻数据
    */
@@ -127,7 +146,7 @@ public class DbUtil {
     SqlHelper.createTable(mDb, clazz, tableName);
   }
 
-  private void checkDb(){
+  private void checkDb() {
     if (mDb == null || !mDb.isOpen()) {
       mDb = mHelper.getReadableDatabase();
     }
@@ -175,7 +194,7 @@ public class DbUtil {
       Log.e(TAG, "请输入删除条件");
       return -1;
     } else if (wheres.length != values.length) {
-      Log.e(TAG, "key 和 vaule 长度不相等");
+      Log.e(TAG, "groupName 和 vaule 长度不相等");
       return -1;
     }
     StringBuilder sb = new StringBuilder();
diff --git a/Aria/src/main/java/com/arialyy/aria/orm/NormalList.java b/Aria/src/main/java/com/arialyy/aria/orm/NormalList.java
new file mode 100644
index 00000000..2d2ba512
--- /dev/null
+++ b/Aria/src/main/java/com/arialyy/aria/orm/NormalList.java
@@ -0,0 +1,32 @@
+/*
+ * Copyright (C) 2016 AriaLyy(https://github.com/AriaLyy/Aria)
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package com.arialyy.aria.orm;
+
+import java.lang.annotation.ElementType;
+import java.lang.annotation.Retention;
+import java.lang.annotation.RetentionPolicy;
+import java.lang.annotation.Target;
+
+/**
+ * Created by AriaL on 2017/7/4.
+ * 基本类型的List，只能用于常见的数据类型，如果是一对多的复杂数据结构，需要使用{@link OneToMany}
+ */
+@Target(ElementType.FIELD) @Retention(RetentionPolicy.RUNTIME) public @interface NormalList {
+  /**
+   * 数据类型
+   */
+  Class clazz();
+}
diff --git a/Aria/src/main/java/com/arialyy/aria/orm/OneToMany.java b/Aria/src/main/java/com/arialyy/aria/orm/OneToMany.java
new file mode 100644
index 00000000..8f529e1b
--- /dev/null
+++ b/Aria/src/main/java/com/arialyy/aria/orm/OneToMany.java
@@ -0,0 +1,36 @@
+/*
+ * Copyright (C) 2016 AriaLyy(https://github.com/AriaLyy/Aria)
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package com.arialyy.aria.orm;
+
+import java.lang.annotation.ElementType;
+import java.lang.annotation.Retention;
+import java.lang.annotation.RetentionPolicy;
+import java.lang.annotation.Target;
+
+/**
+ * Created by AriaL on 2017/7/4.
+ * 一对多
+ */
+@Target(ElementType.FIELD) @Retention(RetentionPolicy.RUNTIME) public @interface OneToMany {
+  /**
+   * 关联的表
+   */
+  Class table();
+  /**
+   * 关联的主键
+   */
+  String key();
+}
diff --git a/Aria/src/main/java/com/arialyy/aria/orm/OneToOne.java b/Aria/src/main/java/com/arialyy/aria/orm/OneToOne.java
new file mode 100644
index 00000000..7641fd55
--- /dev/null
+++ b/Aria/src/main/java/com/arialyy/aria/orm/OneToOne.java
@@ -0,0 +1,38 @@
+/*
+ * Copyright (C) 2016 AriaLyy(https://github.com/AriaLyy/Aria)
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package com.arialyy.aria.orm;
+
+import java.lang.annotation.ElementType;
+import java.lang.annotation.Retention;
+import java.lang.annotation.RetentionPolicy;
+import java.lang.annotation.Target;
+
+/**
+ * Created by AriaL on 2017/7/4.
+ * 一对一
+ */
+@Target(ElementType.FIELD) @Retention(RetentionPolicy.RUNTIME) public @interface OneToOne {
+
+  /**
+   * 关联的表
+   */
+  Class table();
+
+  /**
+   * 关联的主键
+   */
+  String key();
+}
diff --git a/Aria/src/main/java/com/arialyy/aria/orm/Id.java b/Aria/src/main/java/com/arialyy/aria/orm/Primary.java
similarity index 97%
rename from Aria/src/main/java/com/arialyy/aria/orm/Id.java
rename to Aria/src/main/java/com/arialyy/aria/orm/Primary.java
index a59b85d9..365f1713 100644
--- a/Aria/src/main/java/com/arialyy/aria/orm/Id.java
+++ b/Aria/src/main/java/com/arialyy/aria/orm/Primary.java
@@ -25,6 +25,6 @@ import java.lang.annotation.Target;
  * Created by lyy on 2015/11/2.
  * 表ID字段指定
  */
-@Target(ElementType.FIELD) @Retention(RetentionPolicy.RUNTIME) public @interface Id {
+@Target(ElementType.FIELD) @Retention(RetentionPolicy.RUNTIME) public @interface Primary {
   int value() default -1;
 }
\ No newline at end of file
diff --git a/Aria/src/main/java/com/arialyy/aria/orm/SqlHelper.java b/Aria/src/main/java/com/arialyy/aria/orm/SqlHelper.java
index 784900b1..2cdc017d 100644
--- a/Aria/src/main/java/com/arialyy/aria/orm/SqlHelper.java
+++ b/Aria/src/main/java/com/arialyy/aria/orm/SqlHelper.java
@@ -28,9 +28,13 @@ import com.arialyy.aria.util.CheckUtil;
 import com.arialyy.aria.util.CommonUtil;
 import java.lang.reflect.Field;
 import java.lang.reflect.Modifier;
+import java.lang.reflect.Type;
 import java.util.ArrayList;
 import java.util.Date;
+import java.util.HashMap;
+import java.util.Iterator;
 import java.util.List;
+import java.util.Map;
 import java.util.Set;
 
 /**
@@ -186,11 +190,26 @@ final class SqlHelper extends SQLiteOpenHelper {
     sql = String.format(sql, params);
     print(FIND_DATA, sql);
     Cursor cursor = db.rawQuery(sql, null);
-    List data = cursor.getCount() > 0 ? newInstanceEntity(clazz, cursor) : null;
+    List data = cursor.getCount() > 0 ? newInstanceEntity(db, clazz, cursor) : null;
+    cursor.close();
     close(db);
     return data;
   }
 
+  /**
+   * 条件查寻数据
+   */
+  static synchronized  List findData(SQLiteDatabase db, String tableName,
+      String... expression) {
+    Class clazz = null;
+    try {
+      clazz = (Class) Class.forName(tableName);
+    } catch (ClassNotFoundException e) {
+      e.printStackTrace();
+    }
+    return findData(db, clazz, expression);
+  }
+
   /**
    * 条件查寻数据
    */
@@ -201,7 +220,7 @@ final class SqlHelper extends SQLiteOpenHelper {
       Log.e(TAG, "请输入查询条件");
       return null;
     } else if (wheres.length != values.length) {
-      Log.e(TAG, "key 和 vaule 长度不相等");
+      Log.e(TAG, "groupName 和 vaule 长度不相等");
       return null;
     }
     StringBuilder sb = new StringBuilder();
@@ -214,7 +233,8 @@ final class SqlHelper extends SQLiteOpenHelper {
     }
     print(FIND_DATA, sb.toString());
     Cursor cursor = db.rawQuery(sb.toString(), null);
-    List data = cursor.getCount() > 0 ? newInstanceEntity(clazz, cursor) : null;
+    List data = cursor.getCount() > 0 ? newInstanceEntity(db, clazz, cursor) : null;
+    cursor.close();
     close(db);
     return data;
   }
@@ -228,7 +248,8 @@ final class SqlHelper extends SQLiteOpenHelper {
     sb.append("SELECT rowid, * FROM ").append(CommonUtil.getClassName(clazz));
     print(FIND_ALL_DATA, sb.toString());
     Cursor cursor = db.rawQuery(sb.toString(), null);
-    List data = cursor.getCount() > 0 ? newInstanceEntity(clazz, cursor) : null;
+    List data = cursor.getCount() > 0 ? newInstanceEntity(db, clazz, cursor) : null;
+    cursor.close();
     close(db);
     return data;
   }
@@ -270,11 +291,26 @@ final class SqlHelper extends SQLiteOpenHelper {
         }
         sb.append(i > 0 ? ", " : "");
         try {
-          Object value = field.get(dbEntity);
-          sb.append(field.getName())
-              .append("='")
-              .append(value == null ? "" : value.toString())
-              .append("'");
+          String value;
+          sb.append(field.getName()).append("='");
+          Type type = field.getType();
+          if (type == Map.class) {
+            value = map2Str((Map) field.get(dbEntity));
+          } else if (type == List.class) {
+            if (isOneToMany(field)) {
+              value = getOneToManyElementParams(field);
+            } else {
+              value = list2Str(dbEntity, field);
+            }
+          } else if (isOneToOne(field)) {
+            value = getOneToOneParams(field);
+          } else {
+            Object obj = field.get(dbEntity);
+            value = obj == null ? "" : obj.toString();
+          }
+
+          sb.append(value == null ? "" : value);
+          sb.append("'");
         } catch (IllegalAccessException e) {
           e.printStackTrace();
         }
@@ -304,24 +340,39 @@ final class SqlHelper extends SQLiteOpenHelper {
           continue;
         }
         sb.append(i > 0 ? ", " : "");
+        //sb.append(getFieldName(field.getType(), field));
         sb.append(field.getName());
         i++;
       }
       sb.append(") VALUES (");
       i = 0;
-      for (Field field : fields) {
-        field.setAccessible(true);
-        if (ignoreField(field)) {
-          continue;
+      try {
+        for (Field field : fields) {
+          field.setAccessible(true);
+          if (ignoreField(field)) {
+            continue;
+          }
+          sb.append(i > 0 ? ", " : "");
+          sb.append("'");
+          Type type = field.getType();
+          if (type == Map.class) {
+            sb.append(map2Str((Map) field.get(dbEntity)));
+          } else if (type == List.class) {
+            if (isOneToMany(field)) {
+              sb.append(getOneToManyElementParams(field));
+            } else {
+              sb.append(list2Str(dbEntity, field));
+            }
+          } else if (isOneToOne(field)) {
+            sb.append(getOneToOneParams(field));
+          } else {
+            sb.append(field.get(dbEntity));
+          }
+          sb.append("'");
+          i++;
         }
-        sb.append(i > 0 ? ", " : "");
-        sb.append("'");
-        try {
-          sb.append(field.get(dbEntity)).append("'");
-        } catch (IllegalAccessException e) {
-          e.printStackTrace();
-        }
-        i++;
+      } catch (IllegalAccessException e) {
+        e.printStackTrace();
       }
       sb.append(")");
       print(INSERT_DATA, sb.toString());
@@ -330,6 +381,104 @@ final class SqlHelper extends SQLiteOpenHelper {
     close(db);
   }
 
+  /**
+   * 获取一对一参数
+   */
+  static String getOneToOneParams(Field field) {
+    OneToOne oneToOne = field.getAnnotation(OneToOne.class);
+    if (oneToOne == null) {
+      throw new IllegalArgumentException("@OneToOne注解的对象必须要有@Primary注解的字段");
+    }
+    return oneToOne.table().getName() + "$$" + oneToOne.key();
+  }
+
+  /**
+   * 获取List一对多参数
+   *
+   * @param field list反射字段
+   */
+  static String getOneToManyElementParams(Field field) {
+    OneToMany oneToMany = field.getAnnotation(OneToMany.class);
+    if (oneToMany == null) {
+      throw new IllegalArgumentException("一对多元素必须被@OneToMany注解");
+    }
+    //关联的表名
+    String tableName = oneToMany.table().getName();
+    //关联的字段
+    String key = oneToMany.key();
+    return tableName + "$$" + key;
+  }
+
+  /**
+   * 列表数据转字符串
+   *
+   * @param field list反射字段
+   */
+  static String list2Str(DbEntity dbEntity, Field field) throws IllegalAccessException {
+    NormalList normalList = field.getAnnotation(NormalList.class);
+    if (normalList == null) {
+      throw new IllegalArgumentException("List中元素必须被@NormalList注解");
+    }
+    List list = (List) field.get(dbEntity);
+    if (list == null || list.isEmpty()) return "";
+    StringBuilder sb = new StringBuilder();
+    for (Object aList : list) {
+      sb.append(aList).append("$$");
+    }
+    return sb.toString();
+  }
+
+  /**
+   * 字符串转列表
+   *
+   * @param str 数据库中的字段
+   * @return 如果str为null，则返回null
+   */
+  private static List str2List(String str, Field field) {
+    NormalList normalList = field.getAnnotation(NormalList.class);
+    if (normalList == null) {
+      throw new IllegalArgumentException("List中元素必须被@NormalList注解");
+    }
+    if (TextUtils.isEmpty(str)) return null;
+    String[] datas = str.split("$$");
+    List list = new ArrayList();
+    String type = normalList.clazz().getName();
+    for (String data : datas) {
+      list.add(checkData(data, type));
+    }
+    return list;
+  }
+
+  private static Object checkData(String type, String data) {
+    switch (type) {
+      case "String":
+        return data;
+      case "int":
+      case "Integer":
+        return Integer.parseInt(data);
+      case "double":
+      case "Double":
+        return Double.parseDouble(data);
+      case "float":
+      case "Float":
+        return Float.parseFloat(data);
+    }
+    return null;
+  }
+
+  /**
+   * 查找class的主键字段
+   *
+   * @return 返回主键字段名
+   */
+  private static String getPrimaryName(Class clazz) {
+    List fields = CommonUtil.getAllFields(clazz);
+    for (Field field : fields) {
+      if (isPrimary(field)) return field.getName();
+    }
+    return null;
+  }
+
   /**
    * 查找表是否存在
    *
@@ -380,9 +529,13 @@ final class SqlHelper extends SQLiteOpenHelper {
         if (ignoreField(field)) {
           continue;
         }
-        sb.append(field.getName());
         Class type = field.getType();
-        if (type == String.class) {
+        sb.append(field.getName());
+        if (type == String.class
+            || type == Map.class
+            || type == List.class
+            || isOneToOne(field)
+            || type.isEnum()) {
           sb.append(" varchar");
         } else if (type == int.class || type == Integer.class) {
           sb.append(" interger");
@@ -401,6 +554,10 @@ final class SqlHelper extends SQLiteOpenHelper {
         } else {
           continue;
         }
+        if (isPrimary(field)) {
+          //sb.append(" PRIMARY KEY");
+          sb.append(" NOT NULL");
+        }
         sb.append(",");
       }
       String str = sb.toString();
@@ -447,8 +604,8 @@ final class SqlHelper extends SQLiteOpenHelper {
   /**
    * 根据数据游标创建一个具体的对象
    */
-  static synchronized  List newInstanceEntity(Class clazz,
-      Cursor cursor) {
+  private static synchronized  List newInstanceEntity(SQLiteDatabase db,
+      Class clazz, Cursor cursor) {
     List fields = CommonUtil.getAllFields(clazz);
     List entitys = new ArrayList<>();
     if (fields != null && fields.size() > 0) {
@@ -479,8 +636,39 @@ final class SqlHelper extends SQLiteOpenHelper {
               field.set(entity, new Date(cursor.getString(column)));
             } else if (type == byte[].class) {
               field.set(entity, cursor.getBlob(column));
-            } else {
-              continue;
+            } else if (type == Map.class) {
+              field.set(entity, str2Map(cursor.getString(column)));
+            } else if (type == List.class) {
+              String value = cursor.getString(column);
+              if (isOneToMany(field)) {
+                //主键字段
+                String primaryKey = getPrimaryName(clazz);
+                if (TextUtils.isEmpty(primaryKey)) {
+                  throw new IllegalArgumentException("List中的元素对象必须需要@Primary注解的字段");
+                }
+                //list字段保存的数据
+                int kc = cursor.getColumnIndex(primaryKey);
+                String primaryData = cursor.getString(kc);
+                if (TextUtils.isEmpty(primaryData)) continue;
+                List list = findForeignData(db, primaryData, value);
+                if (list == null) continue;
+                field.set(entity, findForeignData(db, primaryData, value));
+              } else {
+                field.set(entity, str2List(value, field));
+              }
+            } else if (isOneToOne(field)) {
+              String primaryKey = getPrimaryName(clazz);
+              if (TextUtils.isEmpty(primaryKey)) {
+                throw new IllegalArgumentException("@OneToOne的注解对象必须需要@Primary注解的字段");
+              }
+              int kc = cursor.getColumnIndex(primaryKey);
+              String params = cursor.getString(column);
+              String primaryData = cursor.getString(kc);
+              if (TextUtils.isEmpty(primaryData) || primaryData.equalsIgnoreCase("null")) continue;
+              List list = findForeignData(db, primaryData, params);
+              if (list != null && list.size() > 0) {
+                field.set(entity, list.get(0));
+              }
             }
           }
           entity.rowID = cursor.getInt(cursor.getColumnIndex("rowid"));
@@ -496,6 +684,53 @@ final class SqlHelper extends SQLiteOpenHelper {
     return entitys;
   }
 
+  /**
+   * 查找一对多、一对一的关联数据
+   *
+   * @param primary 当前表的主键
+   * @param childParams 当前表关联数据的类名 $$ 主键名
+   */
+  private static  List findForeignData(SQLiteDatabase db, String primary,
+      String childParams) {
+    String[] params = childParams.split("\\$\\$");
+    return findData(db, params[0], params[1] + "=?", primary);
+  }
+
+  /**
+   * 字符串转Map，只支持
+   * 
+   *   {@code Map}
+   * 

+   */
+  private static Map str2Map(String str) {
+    Map map = new HashMap<>();
+    if (TextUtils.isEmpty(str)) {
+      return map;
+    }
+    String[] element = str.split(",");
+    for (String data : element) {
+      String[] s = data.split("\\$");
+      map.put(s[0], s[1]);
+    }
+    return map;
+  }
+
+  /**
+   * Map转字符串，只支持
+   * 
+   *   {@code Map}
+   * 

+   */
+  static String map2Str(Map map) {
+    StringBuilder sb = new StringBuilder();
+    Set keys = map.keySet();
+    for (String key : keys) {
+      sb.append(key).append("$").append(map.get(key)).append(",");
+    }
+    String str = sb.toString();
+    return TextUtils.isEmpty(str) ? str : str.substring(0, str.length() - 1);
+  }
+
   private static void close(SQLiteDatabase db) {
     //if (db != null && db.isOpen()) db.close();
   }
@@ -511,7 +746,7 @@ final class SqlHelper extends SQLiteOpenHelper {
    * @return true 忽略该字段
    */
   static boolean ignoreField(Field field) {
-    // field.isSynthetic(), 使用as热启动App时，AS会自动给你的clss添加change字段
+    // field.isSynthetic(), 使用as热启动App时，AS会自动给你的class添加change字段
     Ignore ignore = field.getAnnotation(Ignore.class);
     int modifiers = field.getModifiers();
     return (ignore != null && ignore.value())
@@ -520,4 +755,28 @@ final class SqlHelper extends SQLiteOpenHelper {
         || Modifier.isStatic(modifiers)
         || Modifier.isFinal(modifiers);
   }
+
+  /**
+   * 判断是否一对多注解
+   */
+  static boolean isOneToMany(Field field) {
+    OneToMany oneToMany = field.getAnnotation(OneToMany.class);
+    return oneToMany != null;
+  }
+
+  /**
+   * 判断是否是一对一注解
+   */
+  static boolean isOneToOne(Field field) {
+    OneToOne oneToOne = field.getAnnotation(OneToOne.class);
+    return oneToOne != null;
+  }
+
+  /**
+   * 判断是否是主键
+   */
+  static boolean isPrimary(Field field) {
+    Primary pk = field.getAnnotation(Primary.class);
+    return pk != null;
+  }
 }
\ No newline at end of file
diff --git a/Aria/src/main/java/com/arialyy/aria/util/CheckUtil.java b/Aria/src/main/java/com/arialyy/aria/util/CheckUtil.java
index c083c46e..34c54227 100644
--- a/Aria/src/main/java/com/arialyy/aria/util/CheckUtil.java
+++ b/Aria/src/main/java/com/arialyy/aria/util/CheckUtil.java
@@ -24,6 +24,7 @@ import com.arialyy.aria.core.inf.AbsTaskEntity;
 import com.arialyy.aria.core.upload.UploadEntity;
 import com.arialyy.aria.core.upload.UploadTaskEntity;
 import com.arialyy.aria.exception.FileException;
+import java.util.List;
 import java.util.regex.Matcher;
 import java.util.regex.Pattern;
 
@@ -76,6 +77,24 @@ public class CheckUtil {
     if (TextUtils.isEmpty(downloadUrl)) throw new IllegalArgumentException("下载链接不能为null");
   }
 
+  /**
+   * 检测下载链接组是否为null
+   */
+  public static void checkDownloadUrls(List urls) {
+    if (urls == null || urls.isEmpty()) {
+      throw new IllegalArgumentException("链接组不能为null");
+    }
+  }
+
+  /**
+   * 检查下载任务组保存路径
+   */
+  public static void checkDownloadPaths(List paths) {
+    if (paths == null || paths.isEmpty()) {
+      throw new IllegalArgumentException("链接保存路径不能为null");
+    }
+  }
+
   /**
    * 检测上传地址是否为null
    */
@@ -88,9 +107,9 @@ public class CheckUtil {
    */
   public static void checkTaskEntity(AbsTaskEntity entity) {
     if (entity instanceof DownloadTaskEntity) {
-      checkDownloadTaskEntity(((DownloadTaskEntity) entity).downloadEntity);
+      checkDownloadTaskEntity(((DownloadTaskEntity) entity).getEntity());
     } else if (entity instanceof UploadTaskEntity) {
-      checkUploadTaskEntity(((UploadTaskEntity) entity).uploadEntity);
+      checkUploadTaskEntity(((UploadTaskEntity) entity).getEntity());
     }
   }
 
@@ -103,7 +122,7 @@ public class CheckUtil {
   public static boolean checkCmdEntity(AbsTaskEntity entity, boolean checkType) {
     boolean b = false;
     if (entity instanceof DownloadTaskEntity) {
-      DownloadEntity entity1 = ((DownloadTaskEntity) entity).downloadEntity;
+      DownloadEntity entity1 = ((DownloadTaskEntity) entity).getEntity();
       if (entity1 == null) {
         Log.e(TAG, "下载实体不能为空");
       } else if (checkType && TextUtils.isEmpty(entity1.getDownloadUrl())) {
@@ -114,7 +133,7 @@ public class CheckUtil {
         b = true;
       }
     } else if (entity instanceof UploadTaskEntity) {
-      UploadEntity entity1 = ((UploadTaskEntity) entity).uploadEntity;
+      UploadEntity entity1 = ((UploadTaskEntity) entity).getEntity();
       if (entity1 == null) {
         Log.e(TAG, "上传实体不能为空");
       } else if (TextUtils.isEmpty(entity1.getFilePath())) {
diff --git a/Aria/src/main/java/com/arialyy/aria/util/CommonUtil.java b/Aria/src/main/java/com/arialyy/aria/util/CommonUtil.java
index 28d447ad..b4d6db90 100644
--- a/Aria/src/main/java/com/arialyy/aria/util/CommonUtil.java
+++ b/Aria/src/main/java/com/arialyy/aria/util/CommonUtil.java
@@ -22,9 +22,14 @@ import android.content.SharedPreferences;
 import android.net.Uri;
 import android.text.TextUtils;
 import android.util.Log;
-import com.arialyy.aria.core.command.CmdFactory;
-import com.arialyy.aria.core.command.AbsCmd;
+import com.arialyy.aria.core.AriaManager;
+import com.arialyy.aria.core.command.normal.NormalCmdFactory;
+import com.arialyy.aria.core.command.normal.AbsNormalCmd;
+import com.arialyy.aria.core.download.DownloadEntity;
+import com.arialyy.aria.core.download.DownloadTaskEntity;
 import com.arialyy.aria.core.inf.AbsTaskEntity;
+import com.arialyy.aria.core.upload.UploadEntity;
+import com.arialyy.aria.core.upload.UploadTaskEntity;
 import java.io.File;
 import java.io.FileFilter;
 import java.io.FileInputStream;
@@ -42,6 +47,11 @@ import java.util.Collections;
 import java.util.List;
 import java.util.Properties;
 import java.util.regex.Pattern;
+import java.lang.reflect.GenericArrayType;
+import java.lang.reflect.ParameterizedType;
+import java.lang.reflect.Type;
+import java.lang.reflect.TypeVariable;
+import java.lang.reflect.WildcardType;
 
 /**
  * Created by lyy on 2016/1/22.
@@ -49,10 +59,140 @@ import java.util.regex.Pattern;
 public class CommonUtil {
   private static final String TAG = "CommonUtil";
 
+  /**
+   * 实例化泛型的实际类型参数
+   *
+   * @throws Exception
+   */
+  public static void typeCheck(Type type) throws Exception {
+    System.out.println("该类型是" + type);
+    // 参数化类型
+    if (type instanceof ParameterizedType) {
+      Type[] typeArguments = ((ParameterizedType) type).getActualTypeArguments();
+      for (int i = 0; i < typeArguments.length; i++) {
+        // 类型变量
+        if (typeArguments[i] instanceof TypeVariable) {
+          System.out.println("第" + (i + 1) + "个泛型参数类型是类型变量" + typeArguments[i] + "，无法实例化。");
+        }
+        // 通配符表达式
+        else if (typeArguments[i] instanceof WildcardType) {
+          System.out.println("第" + (i + 1) + "个泛型参数类型是通配符表达式" + typeArguments[i] + "，无法实例化。");
+        }
+        // 泛型的实际类型，即实际存在的类型
+        else if (typeArguments[i] instanceof Class) {
+          System.out.println("第" + (i + 1) + "个泛型参数类型是:" + typeArguments[i] + "，可以直接实例化对象");
+        }
+      }
+      // 参数化类型数组或类型变量数组
+    } else if (type instanceof GenericArrayType) {
+      System.out.println("该泛型类型是参数化类型数组或类型变量数组，可以获取其原始类型。");
+      Type componentType = ((GenericArrayType) type).getGenericComponentType();
+      // 类型变量
+      if (componentType instanceof TypeVariable) {
+        System.out.println("该类型变量数组的原始类型是类型变量" + componentType + "，无法实例化。");
+      }
+      // 参数化类型，参数化类型数组或类型变量数组
+      // 参数化类型数组或类型变量数组也可以是多维的数组，getGenericComponentType()方法仅仅是去掉最右边的[]
+      else {
+        // 递归调用方法自身
+        typeCheck(componentType);
+      }
+    } else if (type instanceof TypeVariable) {
+      System.out.println("该类型是类型变量");
+    } else if (type instanceof WildcardType) {
+      System.out.println("该类型是通配符表达式");
+    } else if (type instanceof Class) {
+      System.out.println("该类型不是泛型类型");
+    } else {
+      throw new Exception();
+    }
+  }
+
+  /**
+   * 根据下载任务组的url创建key
+   *
+   * @return urls 为 null 或者 size为0，返回""
+   */
+  public static String getMd5Code(List urls) {
+    if (urls == null || urls.size() < 1) return "";
+    String md5 = "";
+    StringBuilder sb = new StringBuilder();
+    for (String url : urls) {
+      sb.append(url);
+    }
+    try {
+      MessageDigest md = MessageDigest.getInstance("MD5");
+      md.update(sb.toString().getBytes());
+      md5 = new BigInteger(1, md.digest()).toString(16);
+    } catch (NoSuchAlgorithmException e) {
+      Log.e(TAG, e.getMessage());
+    }
+    return md5;
+  }
+
+  /**
+   * 删除上传任务的配置，包括
+   *
+   * @param removeFile {@code true} 不仅删除任务数据库记录，还会删除已经下载完成的文件
+   * {@code false}如果任务已经完成，只删除任务数据库记录
+   */
+  public static void delUploadTaskConfig(boolean removeFile, UploadTaskEntity tEntity) {
+    UploadEntity uEntity = tEntity.getEntity();
+    File file = new File(uEntity.getFilePath());
+    if (removeFile) {
+      if (file.exists()) {
+        file.delete();
+      }
+    } else {
+      if (!uEntity.isComplete()) {
+        if (file.exists()) {
+          file.delete();
+        }
+      }
+    }
+    File config = new File(
+        AriaManager.APP.getFilesDir().getPath() + "/temp/" + uEntity.getFileName() + ".properties");
+    if (config.exists()) {
+      config.delete();
+    }
+    uEntity.deleteData();
+    tEntity.deleteData();
+  }
+
+  /**
+   * 删除下载任务的配置，包括
+   *
+   * @param removeFile {@code true} 不仅删除任务数据库记录，还会删除已经下载完成的文件
+   * {@code false}如果任务已经完成，只删除任务数据库记录
+   */
+  public static void delDownloadTaskConfig(boolean removeFile, DownloadTaskEntity tEntity) {
+    DownloadEntity dEntity = tEntity.getEntity();
+    File file = new File(dEntity.getDownloadPath());
+    if (removeFile) {
+      if (file.exists()) {
+        file.delete();
+      }
+    } else {
+      if (!dEntity.isComplete()) {
+        if (file.exists()) {
+          file.delete();
+        }
+      }
+    }
+
+    File config = new File(
+        AriaManager.APP.getFilesDir().getPath() + "/temp/" + dEntity.getFileName() + ".properties");
+    if (config.exists()) {
+      config.delete();
+    }
+    dEntity.deleteData();
+    tEntity.deleteData();
+  }
+
   /**
    * 获取CPU核心数
    */
-  public static int getNumCores() {
+  public static int getCoresNum() {
     //Private Class to display only CPU devices in the directory listing
     class CpuFilter implements FileFilter {
       @Override public boolean accept(File pathname) {
@@ -180,8 +320,8 @@ public class CommonUtil {
     }
   }
 
-  public static  AbsCmd createCmd(String target, T entity, int cmd) {
-    return CmdFactory.getInstance().createCmd(target, entity, cmd);
+  public static  AbsNormalCmd createCmd(String target, T entity, int cmd) {
+    return NormalCmdFactory.getInstance().createCmd(target, entity, cmd);
   }
 
   /**
@@ -230,6 +370,10 @@ public class CommonUtil {
     List fields = new ArrayList<>();
     Class personClazz = clazz.getSuperclass();
     if (personClazz != null) {
+      Class rootClazz = personClazz.getSuperclass();
+      if (rootClazz != null) {
+        Collections.addAll(fields, rootClazz.getDeclaredFields());
+      }
       Collections.addAll(fields, personClazz.getDeclaredFields());
     }
     Collections.addAll(fields, clazz.getDeclaredFields());
@@ -397,9 +541,11 @@ public class CommonUtil {
   }
 
   /**
-   * 创建文件 当文件不存在的时候就创建一个文件，否则直接返回文件
+   * 创建文件
+   * 当文件不存在的时候就创建一个文件。
+   * 如果文件存在，先删除原文件，然后重新创建一个新文件
    */
-  public static File createFile(String path) {
+  public static void createFile(String path) {
     File file = new File(path);
     if (!file.getParentFile().exists()) {
       Log.d(TAG, "目标文件所在路径不存在，准备创建……");
@@ -408,19 +554,18 @@ public class CommonUtil {
       }
     }
     // 创建目标文件
+    if (file.exists()) {
+      final File to = new File(file.getAbsolutePath() + System.currentTimeMillis());
+      file.renameTo(to);
+      to.delete();
+    }
     try {
-      if (!file.exists()) {
-        if (file.createNewFile()) {
-          Log.d(TAG, "创建文件成功:" + file.getAbsolutePath());
-        }
-        return file;
-      } else {
-        return file;
+      if (file.createNewFile()) {
+        Log.d(TAG, "创建文件成功:" + file.getAbsolutePath());
       }
     } catch (IOException e) {
       e.printStackTrace();
     }
-    return null;
   }
 
   /**
diff --git a/Aria/src/main/res/layout/activity_aria_file_shange.xml b/Aria/src/main/res/layout/activity_aria_file_shange.xml
deleted file mode 100644
index fd652062..00000000
--- a/Aria/src/main/res/layout/activity_aria_file_shange.xml
+++ /dev/null
@@ -1,14 +0,0 @@
-
-
-
-  
-
-
\ No newline at end of file
diff --git a/Aria/src/main/res/layout/item_file.xml b/Aria/src/main/res/layout/item_file.xml
deleted file mode 100644
index 7f4c8044..00000000
--- a/Aria/src/main/res/layout/item_file.xml
+++ /dev/null
@@ -1,51 +0,0 @@
-
-
-
-  
-
-  
-
-  
-
-  
-
-
\ No newline at end of file
diff --git a/Aria/src/main/res/values/strings.xml b/Aria/src/main/res/values/strings.xml
deleted file mode 100644
index 010e9981..00000000
--- a/Aria/src/main/res/values/strings.xml
+++ /dev/null
@@ -1,8 +0,0 @@
-
-  Aria
-
-  下载实体不能为空
-  下载链接不能为空
-  存储地址不能为空
-  文件名不能为空
-
diff --git a/AriaAnnotations/build.gradle b/AriaAnnotations/build.gradle
index 0b581ad5..a9f2139b 100644
--- a/AriaAnnotations/build.gradle
+++ b/AriaAnnotations/build.gradle
@@ -11,4 +11,4 @@ dependencies {
   compile fileTree(dir: 'libs', include: ['*.jar'])
 }
 
-//apply from: 'bintray-release.gradle'
\ No newline at end of file
+apply from: 'bintray-release.gradle'
\ No newline at end of file
diff --git a/AriaAnnotations/src/main/java/com/arialyy/annotations/AriaConstance.java b/AriaAnnotations/src/main/java/com/arialyy/annotations/AriaConstance.java
index 3fd7e89a..0481539a 100644
--- a/AriaAnnotations/src/main/java/com/arialyy/annotations/AriaConstance.java
+++ b/AriaAnnotations/src/main/java/com/arialyy/annotations/AriaConstance.java
@@ -21,5 +21,25 @@ package com.arialyy.annotations;
 
 public interface AriaConstance {
   String NO_URL = "";
+
+  /**
+   * 注解方法为普通任务下载
+   */
+  int DOWNLOAD = 0xa1;
+
+  /**
+   * 注解方法为任务组下载
+   */
+  int DOWNLOAD_GROUP = 0xa2;
+
+  /**
+   * 注解方法为普通任务上传
+   */
+  int UPLOAD = 0xb1;
+
+  /**
+   * 注解方法为任务组上传
+   */
+  int UPLOAD_GROUP = 0xb2;
 }
 
diff --git a/AriaAnnotations/src/main/java/com/arialyy/annotations/Download.java b/AriaAnnotations/src/main/java/com/arialyy/annotations/Download.java
index 86df2895..41110643 100644
--- a/AriaAnnotations/src/main/java/com/arialyy/annotations/Download.java
+++ b/AriaAnnotations/src/main/java/com/arialyy/annotations/Download.java
@@ -38,63 +38,63 @@ import java.lang.annotation.Target;
   /**
    * 如果你在方法中添加{@code @Download.onPre}注解，在预处理完成时，Aria会调用该方法
    */
-  @Retention(RetentionPolicy.CLASS) @Target(ElementType.METHOD) public @interface onPre {
+  @Retention(RetentionPolicy.CLASS) @Target(ElementType.METHOD) @interface onPre {
     String[] value() default { AriaConstance.NO_URL };
   }
 
   /**
    * 如果你在方法中添加{@code @Download.onTaskPre}注解，在任务预处理完成时，Aria会调用该方法
    */
-  @Retention(RetentionPolicy.CLASS) @Target(ElementType.METHOD) public @interface onTaskPre {
+  @Retention(RetentionPolicy.CLASS) @Target(ElementType.METHOD) @interface onTaskPre {
     String[] value() default { AriaConstance.NO_URL };
   }
 
   /**
    * 如果你在方法中添加{@code @Download.onTaskResume}注解，在任务恢复下载时，Aria会调用该方法
    */
-  @Retention(RetentionPolicy.CLASS) @Target(ElementType.METHOD) public @interface onTaskResume {
+  @Retention(RetentionPolicy.CLASS) @Target(ElementType.METHOD) @interface onTaskResume {
     String[] value() default { AriaConstance.NO_URL };
   }
 
   /**
    * 如果你在方法中添加{@code @Download.onTaskStart}注解，在任务开始下载时，Aria会调用该方法
    */
-  @Retention(RetentionPolicy.CLASS) @Target(ElementType.METHOD) public @interface onTaskStart {
+  @Retention(RetentionPolicy.CLASS) @Target(ElementType.METHOD) @interface onTaskStart {
     String[] value() default { AriaConstance.NO_URL };
   }
 
   /**
    * 如果你在方法中添加{@code @Download.onTaskStop}注解，在任务停止时，Aria会调用该方法
    */
-  @Retention(RetentionPolicy.CLASS) @Target(ElementType.METHOD) public @interface onTaskStop {
+  @Retention(RetentionPolicy.CLASS) @Target(ElementType.METHOD) @interface onTaskStop {
     String[] value() default { AriaConstance.NO_URL };
   }
 
   /**
    * 如果你在方法中添加{@code @Download.onTaskCancel}l注解，在任务取消时，Aria会调用该方法
    */
-  @Retention(RetentionPolicy.CLASS) @Target(ElementType.METHOD) public @interface onTaskCancel {
+  @Retention(RetentionPolicy.CLASS) @Target(ElementType.METHOD) @interface onTaskCancel {
     String[] value() default { AriaConstance.NO_URL };
   }
 
   /**
    * 如果你在方法中添加{@code @Download.onTaskFail)注解，在任务预失败时，Aria会调用该方法
    */
-  @Retention(RetentionPolicy.CLASS) @Target(ElementType.METHOD) public @interface onTaskFail {
+  @Retention(RetentionPolicy.CLASS) @Target(ElementType.METHOD) @interface onTaskFail {
     String[] value() default { AriaConstance.NO_URL };
   }
 
   /**
    * 如果你在方法中添加{@code @Download.onTaskComplete}注解，在任务完成时，Aria会调用该方法
    */
-  @Retention(RetentionPolicy.CLASS) @Target(ElementType.METHOD) public @interface onTaskComplete {
+  @Retention(RetentionPolicy.CLASS) @Target(ElementType.METHOD) @interface onTaskComplete {
     String[] value() default { AriaConstance.NO_URL };
   }
 
   /**
    * 如果你在方法中添加{@code @Download.onTaskRunning}注解，在任务正在下载，Aria会调用该方法
    */
-  @Retention(RetentionPolicy.CLASS) @Target(ElementType.METHOD) public @interface onTaskRunning {
+  @Retention(RetentionPolicy.CLASS) @Target(ElementType.METHOD) @interface onTaskRunning {
     String[] value() default { AriaConstance.NO_URL };
   }
 
@@ -102,7 +102,7 @@ import java.lang.annotation.Target;
    * 如果你在方法中添加{@code @Download.onNoSupportBreakPoint}注解，如果该任务不支持断点，Aria会调用该方法
    */
   @Retention(RetentionPolicy.CLASS) @Target(ElementType.METHOD)
-  public @interface onNoSupportBreakPoint {
+  @interface onNoSupportBreakPoint {
     String[] value() default { AriaConstance.NO_URL };
   }
 }
diff --git a/AriaAnnotations/src/main/java/com/arialyy/annotations/DownloadGroup.java b/AriaAnnotations/src/main/java/com/arialyy/annotations/DownloadGroup.java
new file mode 100644
index 00000000..c0777d82
--- /dev/null
+++ b/AriaAnnotations/src/main/java/com/arialyy/annotations/DownloadGroup.java
@@ -0,0 +1,99 @@
+/*
+ * Copyright (C) 2016 AriaLyy(https://github.com/AriaLyy/Aria)
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package com.arialyy.annotations;
+
+import java.lang.annotation.ElementType;
+import java.lang.annotation.Retention;
+import java.lang.annotation.RetentionPolicy;
+import java.lang.annotation.Target;
+
+/**
+ * Created by Aria.Lao on 2017/6/6.
+ * Aria下载事件被注解的方法中，参数仅能有一个，参数类型为{@link com.arialyy.aria.core.download.DownloadGroupTask}
+ * 
+ *   
+ *      {@literal @}Download.onPre(groupName)
+ *       protected void onPre(DownloadGroupTask task) {
+ *       }
+ *   
+ * 

+ * {@literal @}Download.onPre("myGroupName")，如果你的注解中增加了url描述，
+ * 则表示，所有下载任务中，只有下载地址为"myGroupName"的任务才能回调该注解的方法。
+ */
+@Retention(RetentionPolicy.CLASS) @Target(ElementType.METHOD) public @interface DownloadGroup {
+  /**
+   * 如果你在方法中添加{@code @Download.onPre}注解，在预处理完成时，Aria会调用该方法
+   */
+  @Retention(RetentionPolicy.CLASS) @Target(ElementType.METHOD) @interface onPre {
+    String[] value() default { AriaConstance.NO_URL };
+  }
+
+  /**
+   * 如果你在方法中添加{@code @Download.onTaskPre}注解，在任务预处理完成时，Aria会调用该方法
+   */
+  @Retention(RetentionPolicy.CLASS) @Target(ElementType.METHOD) @interface onTaskPre {
+    String[] value() default { AriaConstance.NO_URL };
+  }
+
+  /**
+   * 如果你在方法中添加{@code @Download.onTaskResume}注解，在任务恢复下载时，Aria会调用该方法
+   */
+  @Retention(RetentionPolicy.CLASS) @Target(ElementType.METHOD) @interface onTaskResume {
+    String[] value() default { AriaConstance.NO_URL };
+  }
+
+  /**
+   * 如果你在方法中添加{@code @Download.onTaskStart}注解，在任务开始下载时，Aria会调用该方法
+   */
+  @Retention(RetentionPolicy.CLASS) @Target(ElementType.METHOD) @interface onTaskStart {
+    String[] value() default { AriaConstance.NO_URL };
+  }
+
+  /**
+   * 如果你在方法中添加{@code @Download.onTaskStop}注解，在任务停止时，Aria会调用该方法
+   */
+  @Retention(RetentionPolicy.CLASS) @Target(ElementType.METHOD) @interface onTaskStop {
+    String[] value() default { AriaConstance.NO_URL };
+  }
+
+  /**
+   * 如果你在方法中添加{@code @Download.onTaskCancel}l注解，在任务取消时，Aria会调用该方法
+   */
+  @Retention(RetentionPolicy.CLASS) @Target(ElementType.METHOD) @interface onTaskCancel {
+    String[] value() default { AriaConstance.NO_URL };
+  }
+
+  /**
+   * 如果你在方法中添加{@code @Download.onTaskFail)注解，在任务预失败时，Aria会调用该方法
+   */
+  @Retention(RetentionPolicy.CLASS) @Target(ElementType.METHOD) @interface onTaskFail {
+    String[] value() default { AriaConstance.NO_URL };
+  }
+
+  /**
+   * 如果你在方法中添加{@code @Download.onTaskComplete}注解，在任务完成时，Aria会调用该方法
+   */
+  @Retention(RetentionPolicy.CLASS) @Target(ElementType.METHOD) @interface onTaskComplete {
+    String[] value() default { AriaConstance.NO_URL };
+  }
+
+  /**
+   * 如果你在方法中添加{@code @Download.onTaskRunning}注解，在任务正在下载，Aria会调用该方法
+   */
+  @Retention(RetentionPolicy.CLASS) @Target(ElementType.METHOD) @interface onTaskRunning {
+    String[] value() default { AriaConstance.NO_URL };
+  }
+}
diff --git a/AriaAnnotations/src/main/java/com/arialyy/annotations/Upload.java b/AriaAnnotations/src/main/java/com/arialyy/annotations/Upload.java
index 7906bcc7..609c6663 100644
--- a/AriaAnnotations/src/main/java/com/arialyy/annotations/Upload.java
+++ b/AriaAnnotations/src/main/java/com/arialyy/annotations/Upload.java
@@ -39,14 +39,14 @@ import java.lang.annotation.Target;
   /**
    * 如果你在方法中添加{@code @Upload.onPre}注解，在预处理完成时，Aria会调用该方法
    */
-  @Retention(RetentionPolicy.CLASS) @Target(ElementType.METHOD) public @interface onPre {
+  @Retention(RetentionPolicy.CLASS) @Target(ElementType.METHOD) @interface onPre {
     String[] value() default { AriaConstance.NO_URL };
   }
 
   /**
    * 如果你在方法中添加{@code @Upload.onTaskPre}注解，在任务预处理完成时，Aria会调用该方法
    */
-  @Retention(RetentionPolicy.CLASS) @Target(ElementType.METHOD) public @interface onTaskPre {
+  @Retention(RetentionPolicy.CLASS) @Target(ElementType.METHOD) @interface onTaskPre {
     String[] value() default { AriaConstance.NO_URL };
   }
 
@@ -59,42 +59,42 @@ import java.lang.annotation.Target;
   /**
    * 如果你在方法中添加{@code @Upload.onTaskStart}注解，在任务开始下载时，Aria会调用该方法
    */
-  @Retention(RetentionPolicy.CLASS) @Target(ElementType.METHOD) public @interface onTaskStart {
+  @Retention(RetentionPolicy.CLASS) @Target(ElementType.METHOD) @interface onTaskStart {
     String[] value() default { AriaConstance.NO_URL };
   }
 
   /**
    * 如果你在方法中添加{@code @Upload.onTaskStop}注解，在任务停止时，Aria会调用该方法
    */
-  @Retention(RetentionPolicy.CLASS) @Target(ElementType.METHOD) public @interface onTaskStop {
+  @Retention(RetentionPolicy.CLASS) @Target(ElementType.METHOD) @interface onTaskStop {
     String[] value() default { AriaConstance.NO_URL };
   }
 
   /**
    * 如果你在方法中添加{@code @Upload.onTaskCancel}l注解，在任务取消时，Aria会调用该方法
    */
-  @Retention(RetentionPolicy.CLASS) @Target(ElementType.METHOD) public @interface onTaskCancel {
+  @Retention(RetentionPolicy.CLASS) @Target(ElementType.METHOD) @interface onTaskCancel {
     String[] value() default { AriaConstance.NO_URL };
   }
 
   /**
    * 如果你在方法中添加{@code @Upload.onTaskFail)注解，在任务预失败时，Aria会调用该方法
    */
-  @Retention(RetentionPolicy.CLASS) @Target(ElementType.METHOD) public @interface onTaskFail {
+  @Retention(RetentionPolicy.CLASS) @Target(ElementType.METHOD) @interface onTaskFail {
     String[] value() default { AriaConstance.NO_URL };
   }
 
   /**
    * 如果你在方法中添加{@code @Upload.onTaskComplete}注解，在任务完成时，Aria会调用该方法
    */
-  @Retention(RetentionPolicy.CLASS) @Target(ElementType.METHOD) public @interface onTaskComplete {
+  @Retention(RetentionPolicy.CLASS) @Target(ElementType.METHOD) @interface onTaskComplete {
     String[] value() default { AriaConstance.NO_URL };
   }
 
   /**
    * 如果你在方法中添加{@code @Upload.onTaskRunning}注解，在任务正在下载，Aria会调用该方法
    */
-  @Retention(RetentionPolicy.CLASS) @Target(ElementType.METHOD) public @interface onTaskRunning {
+  @Retention(RetentionPolicy.CLASS) @Target(ElementType.METHOD) @interface onTaskRunning {
     String[] value() default { AriaConstance.NO_URL };
   }
 
@@ -102,7 +102,7 @@ import java.lang.annotation.Target;
    * 如果你在方法中添加{@code @Upload.onNoSupportBreakPoint}注解，如果该任务不支持断点，Aria会调用该方法
    */
   @Retention(RetentionPolicy.CLASS) @Target(ElementType.METHOD)
-  public @interface onNoSupportBreakPoint {
+  @interface onNoSupportBreakPoint {
     String[] value() default { AriaConstance.NO_URL };
   }
 }
diff --git a/AriaCompiler/build.gradle b/AriaCompiler/build.gradle
index 38de01a1..a76e8659 100644
--- a/AriaCompiler/build.gradle
+++ b/AriaCompiler/build.gradle
@@ -14,4 +14,4 @@ dependencies {
   compile project(':AriaAnnotations')
 }
 
-//apply from: 'bintray-release.gradle'
\ No newline at end of file
+apply from: 'bintray-release.gradle'
\ No newline at end of file
diff --git a/AriaCompiler/src/main/java/com/arialyy/compiler/AriaProcessor.java b/AriaCompiler/src/main/java/com/arialyy/compiler/AriaProcessor.java
index 5ac4a533..814c6945 100644
--- a/AriaCompiler/src/main/java/com/arialyy/compiler/AriaProcessor.java
+++ b/AriaCompiler/src/main/java/com/arialyy/compiler/AriaProcessor.java
@@ -32,16 +32,17 @@ import javax.lang.model.element.TypeElement;
  * 事件注解扫描器
  */
 @AutoService(Processor.class) public class AriaProcessor extends AbstractProcessor {
-  ElementHandle mHandler;
+  ElementHandler mHandler;
 
   @Override public synchronized void init(ProcessingEnvironment processingEnv) {
     super.init(processingEnv);
     PrintLog.init(processingEnv.getMessager());
-    mHandler = new ElementHandle(processingEnv.getFiler(), processingEnv.getElementUtils());
+    mHandler = new ElementHandler(processingEnv.getFiler(), processingEnv.getElementUtils());
   }
 
   @Override public Set getSupportedAnnotationTypes() {
     Set annotataions = new LinkedHashSet<>();
+    //单任务下载的注解
     annotataions.add(Download.onPre.class.getCanonicalName());
     annotataions.add(Download.onNoSupportBreakPoint.class.getCanonicalName());
     annotataions.add(Download.onTaskCancel.class.getCanonicalName());
@@ -52,6 +53,18 @@ import javax.lang.model.element.TypeElement;
     annotataions.add(Download.onTaskRunning.class.getCanonicalName());
     annotataions.add(Download.onTaskStart.class.getCanonicalName());
     annotataions.add(Download.onTaskStop.class.getCanonicalName());
+    //下载任务的注解
+    annotataions.add(Download.onPre.class.getCanonicalName());
+    annotataions.add(Download.onNoSupportBreakPoint.class.getCanonicalName());
+    annotataions.add(Download.onTaskCancel.class.getCanonicalName());
+    annotataions.add(Download.onTaskComplete.class.getCanonicalName());
+    annotataions.add(Download.onTaskFail.class.getCanonicalName());
+    annotataions.add(Download.onTaskPre.class.getCanonicalName());
+    annotataions.add(Download.onTaskResume.class.getCanonicalName());
+    annotataions.add(Download.onTaskRunning.class.getCanonicalName());
+    annotataions.add(Download.onTaskStart.class.getCanonicalName());
+    annotataions.add(Download.onTaskStop.class.getCanonicalName());
+    //上传任务的注解
     annotataions.add(Upload.onPre.class.getCanonicalName());
     annotataions.add(Upload.onNoSupportBreakPoint.class.getCanonicalName());
     annotataions.add(Upload.onTaskCancel.class.getCanonicalName());
@@ -73,6 +86,7 @@ import javax.lang.model.element.TypeElement;
   public boolean process(Set annotations, RoundEnvironment roundEnv) {
     mHandler.clean();
     mHandler.handleDownload(roundEnv);
+    mHandler.handleDownloadGroup(roundEnv);
     mHandler.handleUpload(roundEnv);
     mHandler.createProxyFile();
     return true;
diff --git a/AriaCompiler/src/main/java/com/arialyy/compiler/ElementHandle.java b/AriaCompiler/src/main/java/com/arialyy/compiler/ElementHandle.java
deleted file mode 100644
index a09f4178..00000000
--- a/AriaCompiler/src/main/java/com/arialyy/compiler/ElementHandle.java
+++ /dev/null
@@ -1,405 +0,0 @@
-/*
- * Copyright (C) 2016 AriaLyy(https://github.com/AriaLyy/Aria)
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-package com.arialyy.compiler;
-
-import com.arialyy.annotations.Download;
-import com.arialyy.annotations.Upload;
-import com.squareup.javapoet.ClassName;
-import com.squareup.javapoet.CodeBlock;
-import com.squareup.javapoet.FieldSpec;
-import com.squareup.javapoet.JavaFile;
-import com.squareup.javapoet.MethodSpec;
-import com.squareup.javapoet.ParameterSpec;
-import com.squareup.javapoet.TypeSpec;
-import com.squareup.javapoet.ParameterizedTypeName;
-import java.io.IOException;
-import java.lang.annotation.Annotation;
-import java.util.Collections;
-import java.util.HashMap;
-import java.util.HashSet;
-import java.util.List;
-import java.util.Map;
-import java.util.Set;
-import javax.annotation.processing.Filer;
-import javax.annotation.processing.RoundEnvironment;
-import javax.lang.model.element.Element;
-import javax.lang.model.element.ElementKind;
-import javax.lang.model.element.ExecutableElement;
-import javax.lang.model.element.Modifier;
-import javax.lang.model.element.PackageElement;
-import javax.lang.model.element.TypeElement;
-import javax.lang.model.element.VariableElement;
-import javax.lang.model.util.Elements;
-
-/**
- * Created by lyy on 2017/6/6.
- * 元素处理
- */
-class ElementHandle {
-
-  private Filer mFiler;
-  private Elements mElementUtil;
-  private Map mMethods = new HashMap<>();
-
-  ElementHandle(Filer filer, Elements elements) {
-    mFiler = filer;
-    mElementUtil = elements;
-  }
-
-  /**
-   * VariableElement 一般代表成员变量
-   * ExecutableElement 一般代表类中的方法
-   * TypeElement 一般代表代表类
-   * PackageElement 一般代表Package
-   */
-  void handleDownload(RoundEnvironment roundEnv) {
-    saveMethod(true, roundEnv, Download.onNoSupportBreakPoint.class,
-        ProxyConstance.DOWNLOAD_TASK_NO_SUPPORT_BREAKPOINT);
-    saveMethod(true, roundEnv, Download.onPre.class, ProxyConstance.DOWNLOAD_PRE);
-    saveMethod(true, roundEnv, Download.onTaskCancel.class, ProxyConstance.DOWNLOAD_TASK_CANCEL);
-    saveMethod(true, roundEnv, Download.onTaskComplete.class,
-        ProxyConstance.DOWNLOAD_TASK_COMPLETE);
-    saveMethod(true, roundEnv, Download.onTaskFail.class, ProxyConstance.DOWNLOAD_TASK_FAIL);
-    saveMethod(true, roundEnv, Download.onTaskPre.class, ProxyConstance.DOWNLOAD_TASK_PRE);
-    saveMethod(true, roundEnv, Download.onTaskResume.class, ProxyConstance.DOWNLOAD_TASK_RESUME);
-    saveMethod(true, roundEnv, Download.onTaskRunning.class, ProxyConstance.DOWNLOAD_TASK_RUNNING);
-    saveMethod(true, roundEnv, Download.onTaskStart.class, ProxyConstance.DOWNLOAD_TASK_START);
-    saveMethod(true, roundEnv, Download.onTaskStop.class, ProxyConstance.DOWNLOAD_TASK_STOP);
-  }
-
-  void handleUpload(RoundEnvironment roundEnv) {
-    saveMethod(false, roundEnv, Upload.onNoSupportBreakPoint.class,
-        ProxyConstance.UPLOAD_TASK_NO_SUPPORT_BREAKPOINT);
-    saveMethod(false, roundEnv, Upload.onPre.class, ProxyConstance.UPLOAD_PRE);
-    saveMethod(false, roundEnv, Upload.onTaskCancel.class, ProxyConstance.UPLOAD_TASK_CANCEL);
-    saveMethod(false, roundEnv, Upload.onTaskComplete.class, ProxyConstance.UPLOAD_TASK_COMPLETE);
-    saveMethod(false, roundEnv, Upload.onTaskFail.class, ProxyConstance.UPLOAD_TASK_FAIL);
-    saveMethod(false, roundEnv, Upload.onTaskPre.class, ProxyConstance.UPLOAD_TASK_PRE);
-    //saveMethod(false, roundEnv, Upload.onTaskResume.class);
-    saveMethod(false, roundEnv, Upload.onTaskRunning.class, ProxyConstance.UPLOAD_TASK_RUNNING);
-    saveMethod(false, roundEnv, Upload.onTaskStart.class, ProxyConstance.UPLOAD_TASK_START);
-    saveMethod(false, roundEnv, Upload.onTaskStop.class, ProxyConstance.UPLOAD_TASK_STOP);
-  }
-
-  /**
-   * 在build文件夹中生成如下代码的文件
-   * 
-   *   
-   * package com.arialyy.simple.download;
-   *
-   * import com.arialyy.aria.core.download.DownloadTask;
-   * import com.arialyy.aria.core.scheduler.AbsSchedulerListener;
-   *
-   * public final class SingleTaskActivity$$DownloadListenerProxy extends
-   * AbsSchedulerListener {
-   * private SingleTaskActivity obj;
-   *
-   *    public void onPre(final DownloadTask task) {
-   *      obj.onPre((DownloadTask)task);
-   *    }
-   *
-   *    public void onTaskStart(final DownloadTask task) {
-   *      obj.onStart((DownloadTask)task);
-   *    }
-   *
-   *    public void setListener(final Object obj) {
-   *      this.obj = (SingleTaskActivity)obj;
-   *    }
-   * }
-   *   
-   * 

-   */
-  void createProxyFile() {
-    Set keys = mMethods.keySet();
-    try {
-      for (String key : keys) {
-        ProxyEntity entity = mMethods.get(key);
-        JavaFile jf = JavaFile.builder(entity.packageName, createProxyClass(entity)).build();
-
-        jf.writeTo(mFiler);
-        // 如果需要在控制台打印生成的文件，则去掉下面的注释
-        //jf.writeTo(System.out);
-      }
-    } catch (IOException e) {
-      e.printStackTrace();
-    }
-  }
-
-  /**
-   * 创建代理方法
-   *
-   * @param isDownload 是否是下载的注解
-   * @param annotation {@link Download}、{@link Upload}
-   * @param methodName 被代理类注解的方法名
-   */
-  private MethodSpec createProxyMethod(boolean isDownload, Class annotation,
-      String methodName) {
-    ClassName task = ClassName.get(
-        isDownload ? "com.arialyy.aria.core.download" : "com.arialyy.aria.core.upload",
-        isDownload ? "DownloadTask" : "UploadTask");
-    ParameterSpec parameterSpec =
-        ParameterSpec.builder(task, "task").addModifiers(Modifier.FINAL).build();
-    StringBuilder sb = new StringBuilder();
-    sb.append("Set keys = keyMapping.get(\"")
-        .append(methodName)
-        .append("\");\n");
-    sb.append("if (keys != null) {\n\tif (keys.contains(task.getKey())) {\n")
-        .append("\t\tobj.")
-        .append(methodName)
-        .append("(")
-        .append(isDownload ? "(DownloadTask)" : "(UploadTask)")
-        .append("task);\n")
-        .append("\t}\n} else {\n")
-        .append("\tobj.")
-        .append(methodName)
-        .append("(")
-        .append(isDownload ? "(DownloadTask)" : "(UploadTask)")
-        .append("task);\n}\n");
-
-    return MethodSpec.methodBuilder(annotation.getSimpleName())
-        .addModifiers(Modifier.PUBLIC)
-        .returns(void.class)
-        .addParameter(parameterSpec)
-        .addAnnotation(Override.class)
-        .addCode(sb.toString())
-        .build();
-  }
-
-  /**
-   * 创建代理类
-   */
-  private TypeSpec createProxyClass(ProxyEntity entity) {
-    TypeSpec.Builder builder = TypeSpec.classBuilder(
-        entity.className + (entity.isDownlaod ? ProxyConstance.DOWNLOAD_PROXY_CLASS_SUFFIX
-            : ProxyConstance.UPLOAD_PROXY_CLASS_SUFFIX))
-        .addModifiers(Modifier.PUBLIC, Modifier.FINAL);
-
-    //添加被代理的类的字段
-    ClassName obj = ClassName.get(entity.packageName, entity.className);
-    FieldSpec observerField = FieldSpec.builder(obj, "obj").addModifiers(Modifier.PRIVATE).build();
-    builder.addField(observerField);
-
-    //添加url映射表
-    FieldSpec mappingField = FieldSpec.builder(
-        ParameterizedTypeName.get(ClassName.get(Map.class), ClassName.get(String.class),
-            ParameterizedTypeName.get(ClassName.get(Set.class), ClassName.get(String.class))),
-        "keyMapping").addModifiers(Modifier.PRIVATE).initializer("new $T()", HashMap.class).build();
-    builder.addField(mappingField);
-
-    //添加注解方法
-    for (Class annotation : entity.methods.keySet()) {
-      MethodSpec method =
-          createProxyMethod(entity.isDownlaod, annotation, entity.methods.get(annotation));
-      builder.addMethod(method);
-    }
-
-    //增加构造函数
-    CodeBlock.Builder cb = CodeBlock.builder();
-    cb.add("Set set = null;\n");
-    for (String methodName : entity.keyMappings.keySet()) {
-      Set keys = entity.keyMappings.get(methodName);
-      if (keys == null || keys.size() == 0) continue;
-      StringBuilder sb = new StringBuilder();
-      sb.append("set = new $T();\n");
-      for (String key : keys) {
-        if (key.isEmpty()) continue;
-        sb.append("set.add(\"").append(key).append("\");\n");
-      }
-
-      sb.append("keyMapping.put(\"").append(methodName).append("\", ").append("set);\n");
-      cb.add(sb.toString(), ClassName.get(HashSet.class));
-    }
-    MethodSpec structure =
-        MethodSpec.constructorBuilder().addModifiers(Modifier.PUBLIC).addCode(cb.build()).build();
-    builder.addMethod(structure);
-
-    //添加设置代理的类
-    ParameterSpec parameterSpec =
-        ParameterSpec.builder(Object.class, "obj").addModifiers(Modifier.FINAL).build();
-    MethodSpec listener = MethodSpec.methodBuilder(ProxyConstance.SET_LISTENER)
-        .addModifiers(Modifier.PUBLIC)
-        .returns(void.class)
-        .addParameter(parameterSpec)
-        .addAnnotation(Override.class)
-        .addCode("this.obj = (" + entity.className + ")obj;\n")
-        .build();
-    builder.addJavadoc("该文件为Aria自动生成的代理文件，请不要修改该文件的任何代码！\n");
-
-    //创建父类参数
-    ClassName superClass = ClassName.get("com.arialyy.aria.core.scheduler", "AbsSchedulerListener");
-    //创建泛型
-    ClassName typeVariableName = ClassName.get(
-        entity.isDownlaod ? "com.arialyy.aria.core.download" : "com.arialyy.aria.core.upload",
-        entity.isDownlaod ? "DownloadTask" : "UploadTask");
-    builder.superclass(ParameterizedTypeName.get(superClass, typeVariableName));
-    builder.addMethod(listener);
-    return builder.build();
-  }
-
-  void clean() {
-    mMethods.clear();
-  }
-
-  /**
-   * 查找并保存扫描到的方法
-   */
-  private void saveMethod(boolean isDownload, RoundEnvironment roundEnv,
-      Class annotationClazz, int annotationType) {
-    for (Element element : roundEnv.getElementsAnnotatedWith(annotationClazz)) {
-      ElementKind kind = element.getKind();
-      if (kind == ElementKind.METHOD) {
-        ExecutableElement method = (ExecutableElement) element;
-        TypeElement classElement = (TypeElement) method.getEnclosingElement();
-        PackageElement packageElement = mElementUtil.getPackageOf(classElement);
-        checkDownloadMethod(isDownload, method);
-        String methodName = method.getSimpleName().toString();
-        String className = method.getEnclosingElement().toString(); //全类名
-        ProxyEntity proxyEntity = mMethods.get(className);
-        if (proxyEntity == null) {
-          proxyEntity = new ProxyEntity();
-          proxyEntity.isDownlaod = isDownload;
-          proxyEntity.packageName = packageElement.getQualifiedName().toString();
-          proxyEntity.className = classElement.getSimpleName().toString();
-          mMethods.put(className, proxyEntity);
-        }
-        proxyEntity.methods.put(annotationClazz, methodName);
-        proxyEntity.keyMappings.put(methodName, getValues(method, isDownload, annotationType));
-      }
-    }
-  }
-
-  /**
-   * 获取注解的内容
-   */
-  private Set getValues(ExecutableElement method, boolean isDownload, int annotationType) {
-    String[] keys = null;
-    if (isDownload) {
-      switch (annotationType) {
-        case ProxyConstance.DOWNLOAD_PRE:
-          keys = method.getAnnotation(Download.onPre.class).value();
-          break;
-        case ProxyConstance.DOWNLOAD_TASK_PRE:
-          keys = method.getAnnotation(Download.onTaskPre.class).value();
-          break;
-        case ProxyConstance.DOWNLOAD_TASK_RESUME:
-          keys = method.getAnnotation(Download.onTaskResume.class).value();
-          break;
-        case ProxyConstance.DOWNLOAD_TASK_START:
-          keys = method.getAnnotation(Download.onTaskStart.class).value();
-          break;
-        case ProxyConstance.DOWNLOAD_TASK_RUNNING:
-          keys = method.getAnnotation(Download.onTaskRunning.class).value();
-          break;
-        case ProxyConstance.DOWNLOAD_TASK_STOP:
-          keys = method.getAnnotation(Download.onTaskStop.class).value();
-          break;
-        case ProxyConstance.DOWNLOAD_TASK_COMPLETE:
-          keys = method.getAnnotation(Download.onTaskComplete.class).value();
-          break;
-        case ProxyConstance.DOWNLOAD_TASK_CANCEL:
-          keys = method.getAnnotation(Download.onTaskCancel.class).value();
-          break;
-        case ProxyConstance.DOWNLOAD_TASK_FAIL:
-          keys = method.getAnnotation(Download.onTaskFail.class).value();
-          break;
-        case ProxyConstance.DOWNLOAD_TASK_NO_SUPPORT_BREAKPOINT:
-          keys = method.getAnnotation(Download.onNoSupportBreakPoint.class).value();
-          break;
-      }
-    } else {
-      switch (annotationType) {
-        case ProxyConstance.UPLOAD_PRE:
-          keys = method.getAnnotation(Upload.onPre.class).value();
-          break;
-        case ProxyConstance.UPLOAD_TASK_PRE:
-          keys = method.getAnnotation(Upload.onTaskPre.class).value();
-          break;
-        case ProxyConstance.UPLOAD_TASK_RESUME:
-          //keys = method.getAnnotation(Upload.onTaskResume.class).value();
-          break;
-        case ProxyConstance.UPLOAD_TASK_START:
-          keys = method.getAnnotation(Upload.onTaskStart.class).value();
-          break;
-        case ProxyConstance.UPLOAD_TASK_RUNNING:
-          keys = method.getAnnotation(Upload.onTaskRunning.class).value();
-          break;
-        case ProxyConstance.UPLOAD_TASK_STOP:
-          keys = method.getAnnotation(Upload.onTaskStop.class).value();
-          break;
-        case ProxyConstance.UPLOAD_TASK_COMPLETE:
-          keys = method.getAnnotation(Upload.onTaskComplete.class).value();
-          break;
-        case ProxyConstance.UPLOAD_TASK_CANCEL:
-          keys = method.getAnnotation(Upload.onTaskCancel.class).value();
-          break;
-        case ProxyConstance.UPLOAD_TASK_FAIL:
-          keys = method.getAnnotation(Upload.onTaskFail.class).value();
-          break;
-        case ProxyConstance.UPLOAD_TASK_NO_SUPPORT_BREAKPOINT:
-          keys = method.getAnnotation(Upload.onNoSupportBreakPoint.class).value();
-          break;
-      }
-    }
-
-    return keys == null ? null : convertSet(keys);
-  }
-
-  /**
-   * 检查和下载相关的方法，如果被注解的方法为private或参数不合法，则抛异常
-   */
-  private void checkDownloadMethod(boolean isDownload, ExecutableElement method) {
-    String methodName = method.getSimpleName().toString();
-    String className = method.getEnclosingElement().toString();
-    Set modifiers = method.getModifiers();
-    if (modifiers.contains(Modifier.PRIVATE)) {
-      throw new IllegalAccessError(className + "." + methodName + "不能为private方法");
-    }
-    List params = (List) method.getParameters();
-    if (params.size() > 1) {
-      throw new IllegalArgumentException(
-          className + "." + methodName + "参数错误, 参数只有一个，且参数必须是" + getCheckParams(isDownload));
-    }
-    if (!params.get(0).asType().toString().equals(getCheckParams(isDownload))) {
-      throw new IllegalArgumentException(className
-          + "."
-          + methodName
-          + "参数【"
-          + params.get(0).getSimpleName()
-          + "】类型错误，参数必须是"
-          + getCheckParams(isDownload));
-    }
-  }
-
-  /**
-   * 字符串数组转set
-   *
-   * @param keys 注解中查到的key
-   */
-  private Set convertSet(final String[] keys) {
-    if (keys == null || keys.length == 0) {
-      return null;
-    }
-    if (keys[0].isEmpty()) return null;
-    Set set = new HashSet<>();
-    Collections.addAll(set, keys);
-    return set;
-  }
-
-  private String getCheckParams(boolean isDownload) {
-    return isDownload ? "com.arialyy.aria.core.download.DownloadTask"
-        : "com.arialyy.aria.core.upload.UploadTask";
-  }
-}
diff --git a/AriaCompiler/src/main/java/com/arialyy/compiler/ElementHandler.java b/AriaCompiler/src/main/java/com/arialyy/compiler/ElementHandler.java
new file mode 100644
index 00000000..5cbdd005
--- /dev/null
+++ b/AriaCompiler/src/main/java/com/arialyy/compiler/ElementHandler.java
@@ -0,0 +1,601 @@
+/*
+ * Copyright (C) 2016 AriaLyy(https://github.com/AriaLyy/Aria)
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package com.arialyy.compiler;
+
+import com.arialyy.annotations.Download;
+import com.arialyy.annotations.DownloadGroup;
+import com.arialyy.annotations.Upload;
+import com.squareup.javapoet.ClassName;
+import com.squareup.javapoet.CodeBlock;
+import com.squareup.javapoet.FieldSpec;
+import com.squareup.javapoet.JavaFile;
+import com.squareup.javapoet.MethodSpec;
+import com.squareup.javapoet.ParameterSpec;
+import com.squareup.javapoet.TypeSpec;
+import com.squareup.javapoet.ParameterizedTypeName;
+import java.io.IOException;
+import java.lang.annotation.Annotation;
+import java.util.Collections;
+import java.util.HashMap;
+import java.util.HashSet;
+import java.util.List;
+import java.util.Map;
+import java.util.Set;
+import javax.annotation.processing.Filer;
+import javax.annotation.processing.RoundEnvironment;
+import javax.lang.model.element.Element;
+import javax.lang.model.element.ElementKind;
+import javax.lang.model.element.ExecutableElement;
+import javax.lang.model.element.Modifier;
+import javax.lang.model.element.PackageElement;
+import javax.lang.model.element.TypeElement;
+import javax.lang.model.element.VariableElement;
+import javax.lang.model.util.Elements;
+
+/**
+ * Created by lyy on 2017/6/6.
+ * 元素处理
+ */
+class ElementHandler {
+  private static final boolean DEBUG = false;
+
+  private Filer mFiler;
+  private Elements mElementUtil;
+  private Map mMethods = new HashMap<>();
+  private Map> mListenerClass = new HashMap<>();
+
+  ElementHandler(Filer filer, Elements elements) {
+    mFiler = filer;
+    mElementUtil = elements;
+  }
+
+  /**
+   * VariableElement 一般代表成员变量
+   * ExecutableElement 一般代表类中的方法
+   * TypeElement 一般代表代表类
+   * PackageElement 一般代表Package
+   */
+  void handleDownload(RoundEnvironment roundEnv) {
+    saveMethod(TaskEnum.DOWNLOAD, roundEnv, Download.onNoSupportBreakPoint.class,
+        ProxyConstance.TASK_NO_SUPPORT_BREAKPOINT);
+    saveMethod(TaskEnum.DOWNLOAD, roundEnv, Download.onPre.class, ProxyConstance.PRE);
+    saveMethod(TaskEnum.DOWNLOAD, roundEnv, Download.onTaskCancel.class,
+        ProxyConstance.TASK_CANCEL);
+    saveMethod(TaskEnum.DOWNLOAD, roundEnv, Download.onTaskComplete.class,
+        ProxyConstance.TASK_COMPLETE);
+    saveMethod(TaskEnum.DOWNLOAD, roundEnv, Download.onTaskFail.class, ProxyConstance.TASK_FAIL);
+    saveMethod(TaskEnum.DOWNLOAD, roundEnv, Download.onTaskPre.class, ProxyConstance.TASK_PRE);
+    saveMethod(TaskEnum.DOWNLOAD, roundEnv, Download.onTaskResume.class,
+        ProxyConstance.TASK_RESUME);
+    saveMethod(TaskEnum.DOWNLOAD, roundEnv, Download.onTaskRunning.class,
+        ProxyConstance.TASK_RUNNING);
+    saveMethod(TaskEnum.DOWNLOAD, roundEnv, Download.onTaskStart.class, ProxyConstance.TASK_START);
+    saveMethod(TaskEnum.DOWNLOAD, roundEnv, Download.onTaskStop.class, ProxyConstance.TASK_STOP);
+  }
+
+  /**
+   * 处理搜索到的下载任务组注解
+   */
+  void handleDownloadGroup(RoundEnvironment roundEnv) {
+    saveMethod(TaskEnum.DOWNLOAD_GROUP, roundEnv, DownloadGroup.onPre.class, ProxyConstance.PRE);
+    saveMethod(TaskEnum.DOWNLOAD_GROUP, roundEnv, DownloadGroup.onTaskCancel.class,
+        ProxyConstance.TASK_CANCEL);
+    saveMethod(TaskEnum.DOWNLOAD_GROUP, roundEnv, DownloadGroup.onTaskComplete.class,
+        ProxyConstance.TASK_COMPLETE);
+    saveMethod(TaskEnum.DOWNLOAD_GROUP, roundEnv, DownloadGroup.onTaskFail.class,
+        ProxyConstance.TASK_FAIL);
+    saveMethod(TaskEnum.DOWNLOAD_GROUP, roundEnv, DownloadGroup.onTaskPre.class,
+        ProxyConstance.TASK_PRE);
+    saveMethod(TaskEnum.DOWNLOAD_GROUP, roundEnv, DownloadGroup.onTaskResume.class,
+        ProxyConstance.TASK_RESUME);
+    saveMethod(TaskEnum.DOWNLOAD_GROUP, roundEnv, DownloadGroup.onTaskRunning.class,
+        ProxyConstance.TASK_RUNNING);
+    saveMethod(TaskEnum.DOWNLOAD_GROUP, roundEnv, DownloadGroup.onTaskStart.class,
+        ProxyConstance.TASK_START);
+    saveMethod(TaskEnum.DOWNLOAD_GROUP, roundEnv, DownloadGroup.onTaskStop.class,
+        ProxyConstance.TASK_STOP);
+  }
+
+  /**
+   * 处理搜索到的上传注解F
+   */
+  void handleUpload(RoundEnvironment roundEnv) {
+    saveMethod(TaskEnum.UPLOAD, roundEnv, Upload.onNoSupportBreakPoint.class,
+        ProxyConstance.TASK_NO_SUPPORT_BREAKPOINT);
+    saveMethod(TaskEnum.UPLOAD, roundEnv, Upload.onPre.class, ProxyConstance.PRE);
+    saveMethod(TaskEnum.UPLOAD, roundEnv, Upload.onTaskCancel.class, ProxyConstance.TASK_CANCEL);
+    saveMethod(TaskEnum.UPLOAD, roundEnv, Upload.onTaskComplete.class,
+        ProxyConstance.TASK_COMPLETE);
+    saveMethod(TaskEnum.UPLOAD, roundEnv, Upload.onTaskFail.class, ProxyConstance.TASK_FAIL);
+    saveMethod(TaskEnum.UPLOAD, roundEnv, Upload.onTaskPre.class, ProxyConstance.TASK_PRE);
+    //saveMethod(false, roundEnv, Upload.onTaskResume.class);
+    saveMethod(TaskEnum.UPLOAD, roundEnv, Upload.onTaskRunning.class, ProxyConstance.TASK_RUNNING);
+    saveMethod(TaskEnum.UPLOAD, roundEnv, Upload.onTaskStart.class, ProxyConstance.TASK_START);
+    saveMethod(TaskEnum.UPLOAD, roundEnv, Upload.onTaskStop.class, ProxyConstance.TASK_STOP);
+  }
+
+  /**
+   * 在build文件夹中生成如下代码的文件
+   * 
+   *   
+   * package com.arialyy.simple.download;
+   *
+   * import com.arialyy.aria.core.download.DownloadTask;
+   * import com.arialyy.aria.core.scheduler.AbsSchedulerListener;
+   *
+   * public final class SingleTaskActivity$$DownloadListenerProxy extends
+   * AbsSchedulerListener {
+   * private SingleTaskActivity obj;
+   *
+   *    public void onPre(final DownloadTask task) {
+   *      obj.onPre((DownloadTask)task);
+   *    }
+   *
+   *    public void onTaskStart(final DownloadTask task) {
+   *      obj.onStart((DownloadTask)task);
+   *    }
+   *
+   *    public void setListener(final Object obj) {
+   *      this.obj = (SingleTaskActivity)obj;
+   *    }
+   * }
+   *   
+   * 

+   */
+  void createProxyFile() {
+    try {
+      createProxyListenerFile();
+      createProxyClassFile();
+    } catch (IOException e) {
+      e.printStackTrace();
+    }
+  }
+
+  /**
+   * 创建事件代理文件
+   */
+  private void createProxyListenerFile() throws IOException {
+    Set keys = mMethods.keySet();
+    for (String key : keys) {
+      ProxyMethodParam entity = mMethods.get(key);
+      for (TaskEnum taskEnum : entity.taskEnums) {
+        JavaFile jf =
+            JavaFile.builder(entity.packageName, createProxyClass(entity, taskEnum)).build();
+        createFile(jf);
+      }
+    }
+  }
+
+  private void createFile(JavaFile jf) throws IOException {
+    if (DEBUG) {
+      // 如果需要在控制台打印生成的文件，则去掉下面的注释
+      jf.writeTo(System.out);
+    } else {
+      jf.writeTo(mFiler);
+    }
+  }
+
+  /**
+   * 每一种注解对应的类集合
+   */
+  private void createProxyClassFile() throws IOException {
+    Set keys = mListenerClass.keySet();
+    TypeSpec.Builder builder = TypeSpec.classBuilder(ProxyConstance.PROXY_COUNTER_NAME)
+        .addModifiers(Modifier.PUBLIC, Modifier.FINAL);
+
+    FieldSpec mappingField = FieldSpec.builder(
+        ParameterizedTypeName.get(ClassName.get(Map.class), ClassName.get(String.class),
+            ParameterizedTypeName.get(ClassName.get(Set.class), ClassName.get(String.class))),
+        ProxyConstance.PROXY_COUNTER_MAP)
+        .addModifiers(Modifier.PRIVATE)
+        .initializer("new $T()", HashMap.class)
+        .build();
+    builder.addField(mappingField);
+
+    //增加构造函数
+    CodeBlock.Builder cb = CodeBlock.builder();
+    cb.add("Set set = null;\n");
+    for (String key : keys) {
+      addTypeData(key, mListenerClass.get(key), cb);
+    }
+    MethodSpec structure =
+        MethodSpec.constructorBuilder().addModifiers(Modifier.PUBLIC).addCode(cb.build()).build();
+    builder.addMethod(structure);
+
+    builder.addMethod(
+        creatMethod(ProxyConstance.COUNT_METHOD_DOWNLOAD, ProxyConstance.COUNT_DOWNLOAD));
+    builder.addMethod(creatMethod(ProxyConstance.COUNT_METHOD_UPLOAD, ProxyConstance.COUNT_UPLOAD));
+    builder.addMethod(creatMethod(ProxyConstance.COUNT_METHOD_DOWNLOAD_GROUP,
+        ProxyConstance.COUNT_DOWNLOAD_GROUP));
+
+    JavaFile jf = JavaFile.builder(ProxyConstance.PROXY_COUNTER_PACKAGE, builder.build()).build();
+    createFile(jf);
+  }
+
+  /**
+   * 创建不同任务类型的代理类集合
+   *
+   * @param key {@link #addListenerMapping(String, String)}
+   */
+  private MethodSpec creatMethod(String methodName, String key) {
+    MethodSpec.Builder builder = MethodSpec.methodBuilder(methodName);
+    ParameterizedTypeName returnName =
+        ParameterizedTypeName.get(ClassName.get(Set.class), ClassName.get(String.class));
+    builder.addModifiers(Modifier.PUBLIC, Modifier.FINAL)
+        .returns(returnName)
+        .addCode("return " + ProxyConstance.PROXY_COUNTER_MAP + ".get(\"" + key + "\");\n");
+    return builder.build();
+  }
+
+  /**
+   * 添加每一种注解对应类
+   *
+   * @param type {@link #addListenerMapping(String, String)}
+   */
+  private void addTypeData(String type, Set clsNames, CodeBlock.Builder cb) {
+    if (clsNames == null || clsNames.isEmpty()) return;
+    StringBuilder sb = new StringBuilder();
+    sb.append("set = new $T();\n");
+    for (String clsName : clsNames) {
+      sb.append("set.add(\"").append(clsName).append("\");\n");
+    }
+    sb.append("typeMapping.put(\"").append(type).append("\", ").append("set);\n");
+    cb.add(sb.toString(), ClassName.get(HashSet.class));
+  }
+
+  /**
+   * 创建代理方法
+   *
+   * @param taskEnum 任务类型枚举{@link TaskEnum}
+   * @param annotation {@link Download}、{@link Upload}
+   * @param methodName 被代理类注解的方法名
+   */
+  private MethodSpec createProxyMethod(TaskEnum taskEnum, Class annotation,
+      String methodName) {
+    ClassName task = ClassName.get(taskEnum.getPkg(), taskEnum.getClassName());
+
+    ParameterSpec parameterSpec =
+        ParameterSpec.builder(task, "task").addModifiers(Modifier.FINAL).build();
+    StringBuilder sb = new StringBuilder();
+    sb.append("Set keys = keyMapping.get(\"").append(methodName).append("\");\n");
+    sb.append("if (keys != null) {\n\tif (keys.contains(task.getKey())) {\n")
+        .append("\t\tobj.")
+        .append(methodName)
+        .append("((")
+        .append(taskEnum.getClassName())
+        .append(")task);\n")
+        .append("\t}\n} else {\n")
+        .append("\tobj.")
+        .append(methodName)
+        .append("((")
+        .append(taskEnum.getClassName())
+        .append(")task);\n}\n");
+
+    return MethodSpec.methodBuilder(annotation.getSimpleName())
+        .addModifiers(Modifier.PUBLIC)
+        .returns(void.class)
+        .addParameter(parameterSpec)
+        .addAnnotation(Override.class)
+        .addCode(sb.toString())
+        .build();
+  }
+
+  /**
+   * 创建代理类
+   */
+  private TypeSpec createProxyClass(ProxyMethodParam entity, TaskEnum taskEnum) {
+    TypeSpec.Builder builder = TypeSpec.classBuilder(entity.className + taskEnum.getProxySuffix())
+        .addModifiers(Modifier.PUBLIC, Modifier.FINAL);
+
+    //添加被代理的类的字段
+    ClassName obj = ClassName.get(entity.packageName, entity.className);
+    FieldSpec observerField = FieldSpec.builder(obj, "obj").addModifiers(Modifier.PRIVATE).build();
+    builder.addField(observerField);
+
+    //添加url映射表
+    FieldSpec mappingField = FieldSpec.builder(
+        ParameterizedTypeName.get(ClassName.get(Map.class), ClassName.get(String.class),
+            ParameterizedTypeName.get(ClassName.get(Set.class), ClassName.get(String.class))),
+        "keyMapping").addModifiers(Modifier.PRIVATE).initializer("new $T()", HashMap.class).build();
+    builder.addField(mappingField);
+
+    //添加注解方法
+    Map, String> temp = entity.methods.get(taskEnum);
+    if (temp != null) {
+      for (Class annotation : temp.keySet()) {
+        MethodSpec method = createProxyMethod(taskEnum, annotation, temp.get(annotation));
+        builder.addMethod(method);
+      }
+    }
+
+    //增加构造函数
+    CodeBlock.Builder cb = CodeBlock.builder();
+    cb.add("Set set = null;\n");
+    for (String methodName : entity.keyMappings.keySet()) {
+      Set keys = entity.keyMappings.get(methodName);
+      if (keys == null || keys.size() == 0) continue;
+      StringBuilder sb = new StringBuilder();
+      sb.append("set = new $T();\n");
+      for (String key : keys) {
+        if (key.isEmpty()) continue;
+        sb.append("set.add(\"").append(key).append("\");\n");
+      }
+
+      sb.append("keyMapping.put(\"").append(methodName).append("\", ").append("set);\n");
+      cb.add(sb.toString(), ClassName.get(HashSet.class));
+    }
+    MethodSpec structure =
+        MethodSpec.constructorBuilder().addModifiers(Modifier.PUBLIC).addCode(cb.build()).build();
+    builder.addMethod(structure);
+
+    //添加设置代理的类
+    ParameterSpec parameterSpec =
+        ParameterSpec.builder(Object.class, "obj").addModifiers(Modifier.FINAL).build();
+    MethodSpec listener = MethodSpec.methodBuilder(ProxyConstance.SET_LISTENER)
+        .addModifiers(Modifier.PUBLIC)
+        .returns(void.class)
+        .addParameter(parameterSpec)
+        .addAnnotation(Override.class)
+        .addCode("this.obj = (" + entity.className + ")obj;\n")
+        .build();
+    builder.addJavadoc("该文件为Aria自动生成的代理文件，请不要修改该文件的任何代码！\n");
+
+    //创建父类参数
+    ClassName superClass = ClassName.get("com.arialyy.aria.core.scheduler", "AbsSchedulerListener");
+    //创建泛型
+    ClassName typeVariableName = ClassName.get(taskEnum.getPkg(), taskEnum.getClassName());
+    builder.superclass(ParameterizedTypeName.get(superClass, typeVariableName));
+    builder.addMethod(listener);
+    return builder.build();
+  }
+
+  void clean() {
+    mMethods.clear();
+  }
+
+  /**
+   * 查找并保存扫描到的方法
+   */
+  private void saveMethod(TaskEnum taskEnum, RoundEnvironment roundEnv,
+      Class annotationClazz, int annotationType) {
+    for (Element element : roundEnv.getElementsAnnotatedWith(annotationClazz)) {
+      ElementKind kind = element.getKind();
+      if (kind == ElementKind.METHOD) {
+        ExecutableElement method = (ExecutableElement) element;
+        TypeElement classElement = (TypeElement) method.getEnclosingElement();
+        PackageElement packageElement = mElementUtil.getPackageOf(classElement);
+        checkDownloadMethod(taskEnum, method);
+        String methodName = method.getSimpleName().toString();
+        String className = method.getEnclosingElement().toString(); //全类名
+        ProxyMethodParam proxyEntity = mMethods.get(className);
+        if (proxyEntity == null) {
+          proxyEntity = new ProxyMethodParam();
+          proxyEntity.taskEnums = new HashSet<>();
+          proxyEntity.packageName = packageElement.getQualifiedName().toString();
+          proxyEntity.className = classElement.getSimpleName().toString();
+          mMethods.put(className, proxyEntity);
+        }
+        proxyEntity.taskEnums.add(taskEnum);
+        if (proxyEntity.methods.get(taskEnum) == null) {
+          proxyEntity.methods.put(taskEnum, new HashMap, String>());
+        }
+        proxyEntity.methods.get(taskEnum).put(annotationClazz, methodName);
+        proxyEntity.keyMappings.put(methodName, getValues(taskEnum, method, annotationType));
+      }
+    }
+  }
+
+  /**
+   * 获取注解的内容
+   */
+  private Set getValues(TaskEnum taskEnum, ExecutableElement method, int annotationType) {
+    String clsName = method.getEnclosingElement().toString();
+    String[] keys = null;
+    switch (taskEnum) {
+      case DOWNLOAD:
+        keys = getDownloadValues(method, annotationType);
+        addListenerMapping(clsName, ProxyConstance.COUNT_DOWNLOAD);
+        break;
+      case UPLOAD:
+        keys = getUploadValues(method, annotationType);
+        addListenerMapping(clsName, ProxyConstance.COUNT_UPLOAD);
+        break;
+      case DOWNLOAD_GROUP:
+        keys = getDownloadGroupValues(method, annotationType);
+        addListenerMapping(clsName, ProxyConstance.COUNT_DOWNLOAD_GROUP);
+        break;
+    }
+    return keys == null ? null : convertSet(keys);
+  }
+
+  /**
+   * 添加方法映射
+   *
+   * @param clsName 注解事件的类
+   * @param key {@link ProxyConstance#COUNT_DOWNLOAD}、{@link ProxyConstance#COUNT_UPLOAD}、{@link
+   * ProxyConstance#COUNT_DOWNLOAD_GROUP}
+   */
+  private void addListenerMapping(String clsName, String key) {
+    Set cls = mListenerClass.get(key);
+    if (cls == null) {
+      cls = new HashSet<>();
+      mListenerClass.put(key, cls);
+    }
+    cls.add(clsName);
+  }
+
+  /**
+   * 获取下载任务组的注解数据
+   */
+  private String[] getDownloadGroupValues(ExecutableElement method, int annotationType) {
+    String[] values = null;
+    switch (annotationType) {
+      case ProxyConstance.PRE:
+        values = method.getAnnotation(DownloadGroup.onPre.class).value();
+        break;
+      case ProxyConstance.TASK_PRE:
+        values = method.getAnnotation(DownloadGroup.onTaskPre.class).value();
+        break;
+      case ProxyConstance.TASK_RESUME:
+        values = method.getAnnotation(DownloadGroup.onTaskResume.class).value();
+        break;
+      case ProxyConstance.TASK_START:
+        values = method.getAnnotation(DownloadGroup.onTaskStart.class).value();
+        break;
+      case ProxyConstance.TASK_RUNNING:
+        values = method.getAnnotation(DownloadGroup.onTaskRunning.class).value();
+        break;
+      case ProxyConstance.TASK_STOP:
+        values = method.getAnnotation(DownloadGroup.onTaskStop.class).value();
+        break;
+      case ProxyConstance.TASK_COMPLETE:
+        values = method.getAnnotation(DownloadGroup.onTaskComplete.class).value();
+        break;
+      case ProxyConstance.TASK_CANCEL:
+        values = method.getAnnotation(DownloadGroup.onTaskCancel.class).value();
+        break;
+      case ProxyConstance.TASK_FAIL:
+        values = method.getAnnotation(DownloadGroup.onTaskFail.class).value();
+        break;
+    }
+    return values;
+  }
+
+  /**
+   * 获取上传的注解数据
+   */
+  private String[] getUploadValues(ExecutableElement method, int annotationType) {
+    String[] values = null;
+    switch (annotationType) {
+      case ProxyConstance.PRE:
+        values = method.getAnnotation(Upload.onPre.class).value();
+        break;
+      case ProxyConstance.TASK_PRE:
+        values = method.getAnnotation(Upload.onTaskPre.class).value();
+        break;
+      case ProxyConstance.TASK_RESUME:
+        //values = method.getAnnotation(Upload.onTaskResume.class).value();
+        break;
+      case ProxyConstance.TASK_START:
+        values = method.getAnnotation(Upload.onTaskStart.class).value();
+        break;
+      case ProxyConstance.TASK_RUNNING:
+        values = method.getAnnotation(Upload.onTaskRunning.class).value();
+        break;
+      case ProxyConstance.TASK_STOP:
+        values = method.getAnnotation(Upload.onTaskStop.class).value();
+        break;
+      case ProxyConstance.TASK_COMPLETE:
+        values = method.getAnnotation(Upload.onTaskComplete.class).value();
+        break;
+      case ProxyConstance.TASK_CANCEL:
+        values = method.getAnnotation(Upload.onTaskCancel.class).value();
+        break;
+      case ProxyConstance.TASK_FAIL:
+        values = method.getAnnotation(Upload.onTaskFail.class).value();
+        break;
+      case ProxyConstance.TASK_NO_SUPPORT_BREAKPOINT:
+        //values = method.getAnnotation(Upload.onNoSupportBreakPoint.class).value();
+        break;
+    }
+    return values;
+  }
+
+  /**
+   * 获取下载的注解数据
+   */
+  private String[] getDownloadValues(ExecutableElement method, int annotationType) {
+    String[] values = null;
+    switch (annotationType) {
+      case ProxyConstance.PRE:
+        values = method.getAnnotation(Download.onPre.class).value();
+        break;
+      case ProxyConstance.TASK_PRE:
+        values = method.getAnnotation(Download.onTaskPre.class).value();
+        break;
+      case ProxyConstance.TASK_RESUME:
+        values = method.getAnnotation(Download.onTaskResume.class).value();
+        break;
+      case ProxyConstance.TASK_START:
+        values = method.getAnnotation(Download.onTaskStart.class).value();
+        break;
+      case ProxyConstance.TASK_RUNNING:
+        values = method.getAnnotation(Download.onTaskRunning.class).value();
+        break;
+      case ProxyConstance.TASK_STOP:
+        values = method.getAnnotation(Download.onTaskStop.class).value();
+        break;
+      case ProxyConstance.TASK_COMPLETE:
+        values = method.getAnnotation(Download.onTaskComplete.class).value();
+        break;
+      case ProxyConstance.TASK_CANCEL:
+        values = method.getAnnotation(Download.onTaskCancel.class).value();
+        break;
+      case ProxyConstance.TASK_FAIL:
+        values = method.getAnnotation(Download.onTaskFail.class).value();
+        break;
+      case ProxyConstance.TASK_NO_SUPPORT_BREAKPOINT:
+        values = method.getAnnotation(Download.onNoSupportBreakPoint.class).value();
+        break;
+    }
+    return values;
+  }
+
+  /**
+   * 检查和下载相关的方法，如果被注解的方法为private或参数不合法，则抛异常
+   */
+  private void checkDownloadMethod(TaskEnum taskEnum, ExecutableElement method) {
+    String methodName = method.getSimpleName().toString();
+    String className = method.getEnclosingElement().toString();
+    Set modifiers = method.getModifiers();
+    if (modifiers.contains(Modifier.PRIVATE)) {
+      throw new IllegalAccessError(className + "." + methodName + "不能为private方法");
+    }
+    List params = (List) method.getParameters();
+    if (params.size() > 1) {
+      throw new IllegalArgumentException(
+          className + "." + methodName + "参数错误, 参数只有一个，且参数必须是" + getCheckParams(taskEnum));
+    }
+    if (!params.get(0).asType().toString().equals(getCheckParams(taskEnum))) {
+      throw new IllegalArgumentException(className
+          + "."
+          + methodName
+          + "参数【"
+          + params.get(0).getSimpleName()
+          + "】类型错误，参数必须是"
+          + getCheckParams(taskEnum));
+    }
+  }
+
+  /**
+   * 字符串数组转set
+   *
+   * @param keys 注解中查到的key
+   */
+  private Set convertSet(final String[] keys) {
+    if (keys == null || keys.length == 0) {
+      return null;
+    }
+    if (keys[0].isEmpty()) return null;
+    Set set = new HashSet<>();
+    Collections.addAll(set, keys);
+    return set;
+  }
+
+  private String getCheckParams(TaskEnum taskEnum) {
+    return taskEnum.pkg + "." + taskEnum.getClassName();
+  }
+}
diff --git a/AriaCompiler/src/main/java/com/arialyy/compiler/PrintLog.java b/AriaCompiler/src/main/java/com/arialyy/compiler/PrintLog.java
index 1350de4b..161a2214 100644
--- a/AriaCompiler/src/main/java/com/arialyy/compiler/PrintLog.java
+++ b/AriaCompiler/src/main/java/com/arialyy/compiler/PrintLog.java
@@ -22,7 +22,6 @@ import javax.tools.Diagnostic;
 /**
  * Created by Aria.Lao on 2017/6/6.
  */
-
 class PrintLog {
 
   private volatile static PrintLog INSTANCE = null;
diff --git a/AriaCompiler/src/main/java/com/arialyy/compiler/ProxyConstance.java b/AriaCompiler/src/main/java/com/arialyy/compiler/ProxyConstance.java
index 6ea65c33..98fcb980 100644
--- a/AriaCompiler/src/main/java/com/arialyy/compiler/ProxyConstance.java
+++ b/AriaCompiler/src/main/java/com/arialyy/compiler/ProxyConstance.java
@@ -17,43 +17,44 @@ package com.arialyy.compiler;
 
 /**
  * Created by lyy on 2017/6/7.
+ * 扫描器常量
  */
-
-public interface ProxyConstance {
+interface ProxyConstance {
   /**
    * 设置观察者的方法
    */
   String SET_LISTENER = "setListener";
 
   /**
-   * 下载的动态生成的代理类后缀
+   * 代理配置类
    */
-  String DOWNLOAD_PROXY_CLASS_SUFFIX = "$$DownloadListenerProxy";
+  String PROXY_COUNTER_PACKAGE = "com.arialyy.aria";
+  /**
+   * 代理分类统计
+   */
+  String PROXY_COUNTER_NAME = "ProxyClassCounter";
 
   /**
-   * 上传的动态生成的代理类后缀
+   * 代理分类统计映射表
    */
-  String UPLOAD_PROXY_CLASS_SUFFIX = "$$UploadListenerProxy";
+  String PROXY_COUNTER_MAP = "typeMapping";
 
-  int DOWNLOAD_PRE = 0X11;
-  int DOWNLOAD_TASK_PRE = 0X12;
-  int DOWNLOAD_TASK_RESUME = 0X13;
-  int DOWNLOAD_TASK_START = 0X14;
-  int DOWNLOAD_TASK_STOP = 0X15;
-  int DOWNLOAD_TASK_CANCEL = 0X16;
-  int DOWNLOAD_TASK_FAIL = 0X17;
-  int DOWNLOAD_TASK_COMPLETE = 0X18;
-  int DOWNLOAD_TASK_RUNNING = 0X19;
-  int DOWNLOAD_TASK_NO_SUPPORT_BREAKPOINT = 0X1A;
+  String COUNT_DOWNLOAD = "download";
+  String COUNT_DOWNLOAD_GROUP = "downloadGroup";
+  String COUNT_UPLOAD = "upload";
 
-  int UPLOAD_PRE = 0X11;
-  int UPLOAD_TASK_PRE = 0X12;
-  int UPLOAD_TASK_RESUME = 0X13;
-  int UPLOAD_TASK_START = 0X14;
-  int UPLOAD_TASK_STOP = 0X15;
-  int UPLOAD_TASK_CANCEL = 0X16;
-  int UPLOAD_TASK_FAIL = 0X17;
-  int UPLOAD_TASK_COMPLETE = 0X18;
-  int UPLOAD_TASK_RUNNING = 0X19;
-  int UPLOAD_TASK_NO_SUPPORT_BREAKPOINT = 0X1A;
+  String COUNT_METHOD_DOWNLOAD = "getDownloadCounter";
+  String COUNT_METHOD_DOWNLOAD_GROUP = "getDownloadGroupCounter";
+  String COUNT_METHOD_UPLOAD = "getUploadCounter";
+
+  int PRE = 0X11;
+  int TASK_PRE = 0X12;
+  int TASK_RESUME = 0X13;
+  int TASK_START = 0X14;
+  int TASK_STOP = 0X15;
+  int TASK_CANCEL = 0X16;
+  int TASK_FAIL = 0X17;
+  int TASK_COMPLETE = 0X18;
+  int TASK_RUNNING = 0X19;
+  int TASK_NO_SUPPORT_BREAKPOINT = 0X1A;
 }
diff --git a/AriaCompiler/src/main/java/com/arialyy/compiler/ProxyEntity.java b/AriaCompiler/src/main/java/com/arialyy/compiler/ProxyMethodParam.java
similarity index 75%
rename from AriaCompiler/src/main/java/com/arialyy/compiler/ProxyEntity.java
rename to AriaCompiler/src/main/java/com/arialyy/compiler/ProxyMethodParam.java
index 41573cfc..3cc813aa 100644
--- a/AriaCompiler/src/main/java/com/arialyy/compiler/ProxyEntity.java
+++ b/AriaCompiler/src/main/java/com/arialyy/compiler/ProxyMethodParam.java
@@ -22,12 +22,12 @@ import java.util.Set;
 
 /**
  * Created by Aria.Lao on 2017/6/7.
+ * 创建代理方法的参数
  */
-
-class ProxyEntity {
-  public String packageName;
-  public String className;
-  public boolean isDownlaod = true;
-  public Map> keyMappings = new HashMap<>();
-  public Map, String> methods = new HashMap<>();
+class ProxyMethodParam {
+  String packageName;
+  String className;
+  Set taskEnums;
+  Map> keyMappings = new HashMap<>();
+  Map, String>> methods = new HashMap<>();
 }
diff --git a/AriaCompiler/src/main/java/com/arialyy/compiler/TaskEnum.java b/AriaCompiler/src/main/java/com/arialyy/compiler/TaskEnum.java
new file mode 100644
index 00000000..7620f1df
--- /dev/null
+++ b/AriaCompiler/src/main/java/com/arialyy/compiler/TaskEnum.java
@@ -0,0 +1,53 @@
+/*
+ * Copyright (C) 2016 AriaLyy(https://github.com/AriaLyy/Aria)
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package com.arialyy.compiler;
+
+/**
+ * Created by Aria.Lao on 2017/7/10.
+ * 任务类型枚举
+ */
+enum TaskEnum {
+  DOWNLOAD("com.arialyy.aria.core.download", "DownloadTask",
+      "$$DownloadListenerProxy"), DOWNLOAD_GROUP("com.arialyy.aria.core.download",
+      "DownloadGroupTask", "$$DownloadGroupListenerProxy"), UPLOAD("com.arialyy.aria.core.upload",
+      "UploadTask", "$$UploadListenerProxy"), UPLOAD_GROUP("com.arialyy.aria.core.upload",
+      "UploadGroupTask", "$$UploadGroupListenerProxy");
+
+  String pkg, className, proxySuffix;
+
+  public String getClassName() {
+    return className;
+  }
+
+  public String getProxySuffix() {
+    return proxySuffix;
+  }
+
+  public String getPkg() {
+    return pkg;
+  }
+
+  /**
+   * @param pkg 包名
+   * @param className 任务完整类名
+   * @param proxySuffix 事件代理后缀
+   */
+  TaskEnum(String pkg, String className, String proxySuffix) {
+    this.pkg = pkg;
+    this.className = className;
+    this.proxySuffix = proxySuffix;
+  }
+}
diff --git a/README.md b/README.md
index e2776f14..1e8af13e 100644
--- a/README.md
+++ b/README.md
@@ -1,7 +1,7 @@
 # Aria
 ![图标](https://github.com/AriaLyy/DownloadUtil/blob/v_2.0/app/src/main/res/mipmap-hdpi/ic_launcher.png)

 ## [ENGLISH DOC](https://github.com/AriaLyy/Aria/blob/master/ENGLISH_README.md)

-Aria项目源于15年工作中遇到的一个文件下载管理的需求，当时被下载折磨的痛不欲生，从那时起便萌生了编写一个简单易用，稳当高效的下载框架，aria经历了1.0到3.0的开发，算是越来越接近当初所制定的目标了。
+Aria项目源于工作中遇到的一个文件下载管理的需求，当时被下载折磨的痛不欲生，从那时起便萌生了编写一个简单易用，稳当高效的下载框架，aria经历了1.0到3.0的开发，算是越来越接近当初所制定的目标了。
 
 Aria有以下特点：
  + 简单、方便
@@ -13,7 +13,7 @@ Aria有以下特点：
    - [一句代码实现速度限制](#常用接口)
    - [通过修改配置文件很容易就能修改下载线程数](#配置文件设置参数)
    - [优先下载某一个任务](#常用接口)
-
+   - [支持任务组下载，多个任务可共享一个progress](#一组任务下载)
  + 支持https地址下载
    - 在配置文件中很容易就可以设置CA证书的信息
  + 支持300、301、302重定向下载链接下载
@@ -30,13 +30,14 @@ Aria怎样使用？
 [![Download](https://api.bintray.com/packages/arialyy/maven/AriaApi/images/download.svg)](https://bintray.com/arialyy/maven/AriaApi/_latestVersion)
 [![Download](https://api.bintray.com/packages/arialyy/maven/AriaCompiler/images/download.svg)](https://bintray.com/arialyy/maven/AriaCompiler/_latestVersion)
 ```java
-compile 'com.arialyy.aria:aria-core:3.2.0'
-annotationProcessor 'com.arialyy.aria:aria-compiler:3.2.0'
+compile 'com.arialyy.aria:aria-core:3.2.6'
+annotationProcessor 'com.arialyy.aria:aria-compiler:3.2.6'
 ```
 
 ## 示例
 ![多任务下载](https://github.com/AriaLyy/DownloadUtil/blob/master/img/download_img.gif)
 ![网速下载限制](https://github.com/AriaLyy/DownloadUtil/blob/master/img/max_speed.gif)
+![下载任务组](https://github.com/AriaLyy/DownloadUtil/blob/master/img/download_group.gif)
 
 ## 性能
 ![性能展示](https://github.com/AriaLyy/DownloadUtil/blob/master/img/performance.png)
@@ -51,15 +52,8 @@ annotationProcessor 'com.arialyy.aria:aria-compiler:3.2.0'
 ```
 
 ## 使用Aria进行下载
-* 添加任务（不进行下载），当其他下载任务完成时，将自动下载等待中的任务
-  ```java
-  Aria.download(this)
-      .load(DOWNLOAD_URL)
-      .setDownloadPath(DOWNLOAD_PATH)	//文件保存路径
-      .add();
-  ```
-
-* 下载
+### 普通任务下载
+* 下载\恢复下载
 
   ```java
   Aria.download(this)
@@ -72,16 +66,34 @@ annotationProcessor 'com.arialyy.aria:aria-compiler:3.2.0'
   ```java
   Aria.download(this).load(DOWNLOAD_URL).pause();
   ```
-* 恢复下载
 
-  ```java
-  Aria.download(this).load(DOWNLOAD_URL).resume();
-  ```
 * 取消下载
 
   ```java
   Aria.download(this).load(DOWNLOAD_URL).cancel();
   ```
+### 一组任务下载
+任务组的下载和普通任务的下载基本上差不多，区别在于，任务组下载不需要对每一个子任务设置保存路径，**但是需要设置任务组保存文件夹路径，所有子任务都保存在该文件夹下**
+
+* 下载\恢复下载
+
+  ```java
+  Aria.download(this)
+      .load(urls)     //设置一主任务，参数为List
+      .setDownloadDirPath(groupDirPath)    //设置任务组的文件夹路径
+      .start();   //启动下载
+  ```
+* 暂停
+
+  ```java
+  Aria.download(this).load(urls).pause();
+  ```
+
+* 取消下载
+
+  ```java
+  Aria.download(this).load(urls).cancel();
+  ```
 
 ### 下载状态获取
 如果你希望读取下载进度或下载信息，那么你需要创建事件类，并在onResume(Activity、Fragment)或构造函数(Dialog、PopupWindow)，将该事件类注册到Aria管理器。
@@ -97,12 +109,13 @@ annotationProcessor 'com.arialyy.aria:aria-compiler:3.2.0'
   }
  ```
 
-2. 使用`@Download`或`@Upload`注解你的函数

-  **注意：**
-  - 注解回掉采用Apt的方式实现，所以，你不需要担心这会影响你机器的性能
-  - 被注解的方法**不能被private修饰**
-  - 被注解的方法**只能有一个参数，并且参数类型必须是`DownloadTask`或`UploadTask`**
-  - 方法名可以为任意字符串
+2. 使用`@Download`或`@Upload`或`@DownloadGroup`注解你的函数
+
+ **注意：**
+ - 注解回掉采用Apt的方式实现，所以，你不需要担心这会影响你机器的性能
+ - 被注解的方法**不能被private修饰**
+ - 被注解的方法**只能有一个参数，并且参数类型必须是`DownloadTask`或`UploadTask`或`DownloadGroupTask`**
+ - 方法名可以为任意字符串
 
 3. 除了在widget（Activity、Fragment、Dialog、Popupwindow）中使用注解方法外，你还可以在Service、Notification等组件中使用注解函数。
 
@@ -336,6 +349,7 @@ Aria.download(this).load(DOWNLOAD_URL).setExtendField(str)
 
 
 ## 开发日志
+  + v_3.2.6 移除广播事件，增加任务组下载功能
   + v_3.1.9 修复stopAll队列没有任务时崩溃的问题，增加针对单个任务监听的功能
   + v_3.1.7 修复某些文件下载不了的bug，增加apt注解方法，事件获取更加简单了
   + v_3.1.6 取消任务时onTaskCancel回调两次的bug
@@ -345,16 +359,6 @@ Aria.download(this).load(DOWNLOAD_URL).setExtendField(str)
   + v_3.0.3 修复暂停后删除任务，闪退问题，添加删除记录的api
   + v_3.0.2 支持30x重定向链接下载
   + v_3.0.0 添加上传任务支持，修复一些已发现的bug
-  + v_2.4.4 修复不支持断点的下载链接拿不到文件大小的问题
-  + v_2.4.3 修复404链接卡顿的问题
-  + v_2.4.2 修复失败重试无效的bug
-  + v_2.4.1 修复下载慢的问题，修复application、service 不能使用的问题
-  + v_2.4.0 支持https链接下载
-  + v_2.3.8 修复数据错乱的bug、添加fragment支持
-  + v_2.3.6 添加dialog、popupWindow支持
-  + v_2.3.3 添加断点支持、修改下载逻辑，让使用更加简单、修复一个内存泄露的bug
-  + v_2.3.1 重命名为Aria，下载流程简化
-  + v_2.1.1 增加，选择最大下载任务数接口
 
 License
 -------
diff --git a/app/build.gradle b/app/build.gradle
index 247814e2..c0683d76 100644
--- a/app/build.gradle
+++ b/app/build.gradle
@@ -2,7 +2,7 @@ apply plugin: 'com.android.application'
 
 android {
   compileSdkVersion 23
-  buildToolsVersion '25.0.2'
+  buildToolsVersion '25.0.3'
 
   defaultConfig {
     applicationId "com.arialyy.simple"
@@ -42,7 +42,6 @@ dependencies {
   compile 'com.squareup.okhttp3:okhttp:3.2.0'
   compile 'com.arialyy.frame:MVVM2:2.2.0'
   compile project(':Aria')
-//  compile 'com.arialyy.aria:aria-core:3.1.8'
-//  annotationProcessor 'com.arialyy.aria:aria-compiler:3.1.8'
+  compile project(':AriaCompiler')
 
 }
diff --git a/app/src/main/AndroidManifest.xml b/app/src/main/AndroidManifest.xml
index b91acce7..4443482d 100644
--- a/app/src/main/AndroidManifest.xml
+++ b/app/src/main/AndroidManifest.xml
@@ -31,6 +31,7 @@
     
     
     
+    
 
     
   
diff --git a/app/src/main/assets/aria_config.xml b/app/src/main/assets/aria_config.xml
index f9ed36f3..474752d0 100644
--- a/app/src/main/assets/aria_config.xml
+++ b/app/src/main/assets/aria_config.xml
@@ -7,9 +7,6 @@
     
     
 
-    
-    
-
     
     
 
@@ -34,11 +31,12 @@
     
     
 
+    
+    
+
   
 
   
-    
-    
 
     
     
diff --git a/app/src/main/java/com/arialyy/simple/MainActivity.java b/app/src/main/java/com/arialyy/simple/MainActivity.java
index 7b315dab..5867a402 100644
--- a/app/src/main/java/com/arialyy/simple/MainActivity.java
+++ b/app/src/main/java/com/arialyy/simple/MainActivity.java
@@ -18,14 +18,12 @@ package com.arialyy.simple;
 
 import android.content.Intent;
 import android.os.Bundle;
-import android.support.v7.widget.Toolbar;
 import android.view.View;
-import butterknife.Bind;
 import butterknife.OnClick;
-import com.arialyy.aria.core.Aria;
 import com.arialyy.simple.base.BaseActivity;
 import com.arialyy.simple.databinding.ActivityMainBinding;
 import com.arialyy.simple.download.DownloadActivity;
+import com.arialyy.simple.download.group.DownloadGroupActivity;
 import com.arialyy.simple.test.TestMutilTaskSysDownload;
 import com.arialyy.simple.upload.UploadActivity;
 
@@ -45,15 +43,20 @@ public class MainActivity extends BaseActivity {
     return R.layout.activity_main;
   }
 
-  @OnClick(R.id.download) public void downloadDemo() {
-    startActivity(new Intent(this, DownloadActivity.class));
-  }
 
-  @OnClick(R.id.upload) public void uploadDemo() {
-    startActivity(new Intent(this, UploadActivity.class));
-  }
+  @OnClick({R.id.download, R.id.upload, R.id.download_task_group})
+  public void funcation(View view){
+    switch (view.getId()){
+      case R.id.download:
+        startActivity(new Intent(this, DownloadActivity.class));
+        break;
+      case R.id.upload:
+        startActivity(new Intent(this, UploadActivity.class));
+        break;
+      case R.id.download_task_group:
+        startActivity(new Intent(this, DownloadGroupActivity.class));
+        break;
+    }
 
-  @OnClick(R.id.multi_test) public void mutliTest() {
-    startActivity(new Intent(this, TestMutilTaskSysDownload.class));
   }
 }
diff --git a/app/src/main/java/com/arialyy/simple/base/BaseApplication.java b/app/src/main/java/com/arialyy/simple/base/BaseApplication.java
index 117a34dd..29cda1b9 100644
--- a/app/src/main/java/com/arialyy/simple/base/BaseApplication.java
+++ b/app/src/main/java/com/arialyy/simple/base/BaseApplication.java
@@ -17,7 +17,10 @@
 package com.arialyy.simple.base;
 
 import android.app.Application;
+import android.os.Build;
+import android.os.StrictMode;
 import com.arialyy.frame.core.AbsFrame;
+import com.arialyy.simple.BuildConfig;
 
 /**
  * Created by Lyy on 2016/9/27.
@@ -26,5 +29,11 @@ public class BaseApplication extends Application {
   @Override public void onCreate() {
     super.onCreate();
     AbsFrame.init(this);
+
+    if (BuildConfig.DEBUG && Build.VERSION.SDK_INT >= Build.VERSION_CODES.GINGERBREAD) {
+      StrictMode.setThreadPolicy(
+          new StrictMode.ThreadPolicy.Builder().detectAll().penaltyLog().build());
+      StrictMode.setVmPolicy(new StrictMode.VmPolicy.Builder().detectAll().penaltyLog().build());
+    }
   }
 }
\ No newline at end of file
diff --git a/app/src/main/java/com/arialyy/simple/base/adapter/AbsRVAdapter.java b/app/src/main/java/com/arialyy/simple/base/adapter/AbsRVAdapter.java
index 744ccd94..e7eecd4a 100644
--- a/app/src/main/java/com/arialyy/simple/base/adapter/AbsRVAdapter.java
+++ b/app/src/main/java/com/arialyy/simple/base/adapter/AbsRVAdapter.java
@@ -16,6 +16,8 @@
 package com.arialyy.simple.base.adapter;
 
 import android.content.Context;
+import android.databinding.DataBindingUtil;
+import android.databinding.ViewDataBinding;
 import android.support.v7.widget.RecyclerView;
 import android.view.LayoutInflater;
 import android.view.View;
@@ -45,6 +47,9 @@ public abstract class AbsRVAdapter
   @Override public Holder onCreateViewHolder(ViewGroup parent, int viewType) {
     View view =
         LayoutInflater.from(parent.getContext()).inflate(setLayoutId(viewType), parent, false);
+    //LayoutInflater inflater = LayoutInflater.from(parent.getContext());
+    //VD binding = DataBindingUtil.inflate(inflater, setLayoutId(viewType), parent, false);
+    //;
     holder = getViewHolder(view, viewType);
     return holder;
   }
@@ -55,6 +60,14 @@ public abstract class AbsRVAdapter
     bindData(holder, position, mData.get(position));
   }
 
+  @Override public void onBindViewHolder(Holder holder, int position, List payloads) {
+    if (payloads == null || payloads.isEmpty()) {
+      bindData(holder, position, mData.get(position));
+    } else {
+      bindData(holder, position, mData.get(position), payloads);
+    }
+  }
+
   public Context getContext() {
     return mContext;
   }
@@ -69,4 +82,8 @@ public abstract class AbsRVAdapter
   protected abstract int setLayoutId(int type);
 
   protected abstract void bindData(Holder holder, int position, T item);
+
+  protected void bindData(Holder holder, int position, T item, List payloads) {
+
+  }
 }
\ No newline at end of file
diff --git a/app/src/main/java/com/arialyy/simple/download/DownloadModule.java b/app/src/main/java/com/arialyy/simple/download/DownloadModule.java
index f4c2e831..faef1cf3 100644
--- a/app/src/main/java/com/arialyy/simple/download/DownloadModule.java
+++ b/app/src/main/java/com/arialyy/simple/download/DownloadModule.java
@@ -16,27 +16,16 @@
 
 package com.arialyy.simple.download;
 
-import android.content.BroadcastReceiver;
 import android.content.Context;
-import android.content.Intent;
-import android.content.IntentFilter;
 import android.content.res.Resources;
 import android.os.Environment;
-import android.os.Handler;
-import com.arialyy.aria.core.Aria;
 import com.arialyy.aria.core.download.DownloadEntity;
-import com.arialyy.aria.util.CommonUtil;
-import com.arialyy.frame.util.AndroidUtils;
-import com.arialyy.frame.util.StringUtil;
-import com.arialyy.frame.util.show.L;
 import com.arialyy.simple.R;
 import com.arialyy.simple.download.multi_download.FileListEntity;
 import com.arialyy.simple.base.BaseModule;
-import java.io.File;
 import java.util.ArrayList;
 import java.util.LinkedList;
 import java.util.List;
-import java.util.Random;
 
 /**
  * Created by Lyy on 2016/9/27.
@@ -92,69 +81,4 @@ public class DownloadModule extends BaseModule {
     return entity;
   }
 
-  /**
-   * 下载广播过滤器
-   */
-  public IntentFilter getDownloadFilter() {
-    IntentFilter filter = new IntentFilter();
-    filter.addDataScheme(getContext().getPackageName());
-    filter.addAction(Aria.ACTION_PRE);
-    filter.addAction(Aria.ACTION_POST_PRE);
-    filter.addAction(Aria.ACTION_RESUME);
-    filter.addAction(Aria.ACTION_START);
-    filter.addAction(Aria.ACTION_RUNNING);
-    filter.addAction(Aria.ACTION_STOP);
-    filter.addAction(Aria.ACTION_CANCEL);
-    filter.addAction(Aria.ACTION_COMPLETE);
-    filter.addAction(Aria.ACTION_FAIL);
-    return filter;
-  }
-
-  /**
-   * 创建Receiver
-   */
-  public BroadcastReceiver createReceiver(final Handler handler) {
-
-    return new BroadcastReceiver() {
-      long len = 0;
-
-      @Override public void onReceive(Context context, Intent intent) {
-        String action = intent.getAction();
-        switch (action) {
-          case Aria.ACTION_POST_PRE:
-            DownloadEntity entity = intent.getParcelableExtra(Aria.DOWNLOAD_ENTITY);
-            len = entity.getFileSize();
-            L.d(TAG, "download onPre");
-            handler.obtainMessage(SingleTaskActivity.DOWNLOAD_PRE, len).sendToTarget();
-            break;
-          case Aria.ACTION_START:
-            L.d(TAG, "download start");
-            break;
-          case Aria.ACTION_RESUME:
-            L.d(TAG, "download resume");
-            long location = intent.getLongExtra(Aria.CURRENT_LOCATION, 1);
-            handler.obtainMessage(SingleTaskActivity.DOWNLOAD_RESUME, location).sendToTarget();
-            break;
-          case Aria.ACTION_RUNNING:
-            long current = intent.getLongExtra(Aria.CURRENT_LOCATION, 0);
-            int progress = len == 0 ? 0 : (int) ((current * 100) / len);
-            handler.obtainMessage(SingleTaskActivity.DOWNLOAD_RUNNING, progress).sendToTarget();
-            break;
-          case Aria.ACTION_STOP:
-            L.d(TAG, "download stop");
-            handler.sendEmptyMessage(SingleTaskActivity.DOWNLOAD_STOP);
-            break;
-          case Aria.ACTION_COMPLETE:
-            handler.sendEmptyMessage(SingleTaskActivity.DOWNLOAD_COMPLETE);
-            break;
-          case Aria.ACTION_CANCEL:
-            handler.sendEmptyMessage(SingleTaskActivity.DOWNLOAD_CANCEL);
-            break;
-          case Aria.ACTION_FAIL:
-            handler.sendEmptyMessage(SingleTaskActivity.DOWNLOAD_FAILE);
-            break;
-        }
-      }
-    };
-  }
 }
\ No newline at end of file
diff --git a/app/src/main/java/com/arialyy/simple/download/HighestPriorityActivity.java b/app/src/main/java/com/arialyy/simple/download/HighestPriorityActivity.java
index aee06f79..611861dd 100644
--- a/app/src/main/java/com/arialyy/simple/download/HighestPriorityActivity.java
+++ b/app/src/main/java/com/arialyy/simple/download/HighestPriorityActivity.java
@@ -29,6 +29,7 @@ import com.arialyy.aria.core.Aria;
 import com.arialyy.aria.core.download.DownloadEntity;
 import com.arialyy.aria.core.download.DownloadTarget;
 import com.arialyy.aria.core.download.DownloadTask;
+import com.arialyy.aria.core.inf.AbsEntity;
 import com.arialyy.aria.core.inf.IEntity;
 import com.arialyy.frame.util.show.L;
 import com.arialyy.simple.R;
@@ -58,7 +59,7 @@ public class HighestPriorityActivity extends BaseActivity mData = new ArrayList<>();
+  private List mData = new ArrayList<>();
   private Set mRecord = new HashSet<>();
 
   @Override protected int setLayoutId() {
@@ -83,7 +84,7 @@ public class HighestPriorityActivity extends BaseActivity temp = Aria.download(this).getTaskList();
+    List temp = Aria.download(this).getSimpleTaskList();
     if (temp != null && !temp.isEmpty()) {
       for (DownloadEntity entity : temp) {
         if (entity.getDownloadUrl().equals(DOWNLOAD_URL)) continue;
diff --git a/app/src/main/java/com/arialyy/simple/download/SingleTaskActivity.java b/app/src/main/java/com/arialyy/simple/download/SingleTaskActivity.java
index 6e3b468e..5e4612fa 100644
--- a/app/src/main/java/com/arialyy/simple/download/SingleTaskActivity.java
+++ b/app/src/main/java/com/arialyy/simple/download/SingleTaskActivity.java
@@ -16,15 +16,8 @@
 
 package com.arialyy.simple.download;
 
-import android.content.BroadcastReceiver;
-import android.content.Context;
-import android.content.Intent;
 import android.os.Bundle;
 import android.os.Environment;
-import android.os.Handler;
-import android.os.Message;
-import android.support.v7.widget.Toolbar;
-import android.util.Log;
 import android.view.Menu;
 import android.view.MenuItem;
 import android.view.View;
@@ -36,33 +29,20 @@ import butterknife.Bind;
 import com.arialyy.annotations.Download;
 import com.arialyy.aria.core.download.DownloadTarget;
 import com.arialyy.aria.core.Aria;
-import com.arialyy.aria.core.download.DownloadEntity;
 import com.arialyy.aria.core.download.DownloadTask;
 import com.arialyy.aria.core.inf.IEntity;
-import com.arialyy.aria.util.CommonUtil;
-import com.arialyy.frame.util.FileUtil;
-import com.arialyy.frame.util.show.L;
 import com.arialyy.frame.util.show.T;
 import com.arialyy.simple.R;
 import com.arialyy.simple.base.BaseActivity;
 import com.arialyy.simple.databinding.ActivitySingleBinding;
-import com.arialyy.simple.widget.HorizontalProgressBarWithNumber;
-import java.io.File;
 
 public class SingleTaskActivity extends BaseActivity {
-  public static final int DOWNLOAD_PRE = 0x01;
-  public static final int DOWNLOAD_STOP = 0x02;
-  public static final int DOWNLOAD_FAILE = 0x03;
-  public static final int DOWNLOAD_CANCEL = 0x04;
-  public static final int DOWNLOAD_RESUME = 0x05;
-  public static final int DOWNLOAD_COMPLETE = 0x06;
-  public static final int DOWNLOAD_RUNNING = 0x07;
-  public static final int DOWNLOAD_START = 0x08;
 
   private static final String DOWNLOAD_URL =
       //"http://kotlinlang.org/docs/kotlin-docs.pdf";
       //"https://atom-installer.github.com/v1.13.0/AtomSetup.exe?s=1484074138&ext=.exe";
       "http://static.gaoshouyou.com/d/22/94/822260b849944492caadd2983f9bb624.apk";
+  //"http://down2.xiaoshuofuwuqi.com/d/file/filetxt/20170608/14/%BA%DA%CE%D7%CA%A6%E1%C8%C6%F0.txt";
   //"http://tinghuaapp.oss-cn-shanghai.aliyuncs.com/20170612201739607815";
   //"http://static.gaoshouyou.com/d/36/69/2d3699acfa69e9632262442c46516ad8.apk";
   //"http://oqcpqqvuf.bkt.clouddn.com/ceshi.txt";
@@ -70,65 +50,11 @@ public class SingleTaskActivity extends BaseActivity {
   //不支持断点的链接
   //"http://ox.konsung.net:5555/ksdc-web/download/downloadFile/?fileName=ksdc_1.0.2.apk&rRange=0-";
   //"http://172.18.104.50:8080/download/_302turn";
-  @Bind(R.id.progressBar) HorizontalProgressBarWithNumber mPb;
   @Bind(R.id.start) Button mStart;
   @Bind(R.id.stop) Button mStop;
   @Bind(R.id.cancel) Button mCancel;
-  @Bind(R.id.size) TextView mSize;
-  @Bind(R.id.speed) TextView mSpeed;
   @Bind(R.id.speeds) RadioGroup mRg;
 
-  private Handler mUpdateHandler = new Handler() {
-    @Override public void handleMessage(Message msg) {
-      super.handleMessage(msg);
-      switch (msg.what) {
-        case DOWNLOAD_RUNNING:
-          DownloadTask task = (DownloadTask) msg.obj;
-          long current = task.getCurrentProgress();
-          long len = task.getFileSize();
-          if (len == 0) {
-            mPb.setProgress(0);
-          } else {
-            mPb.setProgress((int) ((current * 100) / len));
-          }
-          mSpeed.setText(task.getConvertSpeed());
-          break;
-        case DOWNLOAD_PRE:
-          setBtState(false);
-          break;
-        case DOWNLOAD_START:
-          mSize.setText(CommonUtil.formatFileSize((Long) msg.obj));
-          break;
-        case DOWNLOAD_FAILE:
-          Toast.makeText(SingleTaskActivity.this, "下载失败", Toast.LENGTH_SHORT).show();
-          setBtState(true);
-          break;
-        case DOWNLOAD_STOP:
-          Toast.makeText(SingleTaskActivity.this, "暂停下载", Toast.LENGTH_SHORT).show();
-          mStart.setText("恢复");
-          setBtState(true);
-          break;
-        case DOWNLOAD_CANCEL:
-          mPb.setProgress(0);
-          Toast.makeText(SingleTaskActivity.this, "取消下载", Toast.LENGTH_SHORT).show();
-          mStart.setText("开始");
-          setBtState(true);
-          break;
-        case DOWNLOAD_RESUME:
-          mStart.setText("暂停");
-          setBtState(false);
-          break;
-        case DOWNLOAD_COMPLETE:
-          mPb.setProgress(100);
-          Toast.makeText(SingleTaskActivity.this, "下载完成", Toast.LENGTH_SHORT).show();
-          mStart.setText("重新开始？");
-          mCancel.setEnabled(false);
-          setBtState(true);
-          break;
-      }
-    }
-  };
-
   @Override protected void onCreate(Bundle savedInstanceState) {
     super.onCreate(savedInstanceState);
     Aria.download(this).register();
@@ -153,7 +79,7 @@ public class SingleTaskActivity extends BaseActivity {
     switch (item.getItemId()) {
       case R.id.help:
         msg = "一些小知识点：\n"
-            + "1、你可以通过task.getKey().equals(DOWNLOAD_URL)判断是否是当前页面的下载，以防止progress乱跳\n"
+            + "1、你可以在注解中增加链接，用于指定被注解的方法只能被特定的下载任务回调，以防止progress乱跳\n"
             + "2、当遇到网络慢的情况时，你可以先使用onPre()更新UI界面，待连接成功时，再在onTaskPre()获取完整的task数据，然后给UI界面设置正确的数据\n"
             + "3、你可以在界面初始化时通过Aria.download(this).load(DOWNLOAD_URL).getPercent()等方法快速获取相关任务的一些数据";
         showMsgDialog("tip", msg);
@@ -183,40 +109,54 @@ public class SingleTaskActivity extends BaseActivity {
   }
 
   @Download.onPre(DOWNLOAD_URL) protected void onPre(DownloadTask task) {
-    mUpdateHandler.obtainMessage(DOWNLOAD_PRE, task.getDownloadEntity().getFileSize())
-        .sendToTarget();
+    setBtState(false);
   }
 
   @Download.onTaskStart(DOWNLOAD_URL) void taskStart(DownloadTask task) {
-    mUpdateHandler.obtainMessage(DOWNLOAD_START, task.getDownloadEntity().getFileSize())
-        .sendToTarget();
+    getBinding().setFileSize(task.getConvertFileSize());
   }
 
   @Download.onTaskRunning(DOWNLOAD_URL) protected void running(DownloadTask task) {
-    mUpdateHandler.obtainMessage(DOWNLOAD_RUNNING, task).sendToTarget();
+    long len = task.getFileSize();
+    if (len == 0) {
+      getBinding().setProgress(0);
+    } else {
+      getBinding().setProgress(task.getPercent());
+    }
+    getBinding().setSpeed(task.getConvertSpeed());
   }
 
   @Download.onTaskResume(DOWNLOAD_URL) void taskResume(DownloadTask task) {
-    mUpdateHandler.obtainMessage(DOWNLOAD_START, task.getFileSize()).sendToTarget();
+    mStart.setText("暂停");
+    setBtState(false);
   }
 
   @Download.onTaskStop(DOWNLOAD_URL) void taskStop(DownloadTask task) {
-    mUpdateHandler.sendEmptyMessage(DOWNLOAD_STOP);
-    L.d(TAG, "task__stop");
+    mStart.setText("恢复");
+    setBtState(true);
+    getBinding().setSpeed("");
   }
 
   @Download.onTaskCancel(DOWNLOAD_URL) void taskCancel(DownloadTask task) {
-    mUpdateHandler.sendEmptyMessage(DOWNLOAD_CANCEL);
-    L.d(TAG, "task__cancel");
+    getBinding().setProgress(0);
+    Toast.makeText(SingleTaskActivity.this, "取消下载", Toast.LENGTH_SHORT).show();
+    mStart.setText("开始");
+    setBtState(true);
+    getBinding().setSpeed("");
   }
 
   @Download.onTaskFail(DOWNLOAD_URL) void taskFail(DownloadTask task) {
-    L.d(TAG, "task__fail");
-    mUpdateHandler.sendEmptyMessage(DOWNLOAD_FAILE);
+    Toast.makeText(SingleTaskActivity.this, "下载失败", Toast.LENGTH_SHORT).show();
+    setBtState(true);
   }
 
   @Download.onTaskComplete(DOWNLOAD_URL) void taskComplete(DownloadTask task) {
-    mUpdateHandler.sendEmptyMessage(DOWNLOAD_COMPLETE);
+    getBinding().setProgress(100);
+    Toast.makeText(SingleTaskActivity.this, "下载完成", Toast.LENGTH_SHORT).show();
+    mStart.setText("重新开始？");
+    mCancel.setEnabled(false);
+    setBtState(true);
+    getBinding().setSpeed("");
   }
 
   @Download.onNoSupportBreakPoint(DOWNLOAD_URL)
@@ -232,7 +172,7 @@ public class SingleTaskActivity extends BaseActivity {
     super.init(savedInstanceState);
     setTitle("单任务下载");
     DownloadTarget target = Aria.download(this).load(DOWNLOAD_URL);
-    mPb.setProgress(target.getPercent());
+    getBinding().setProgress(target.getPercent());
     if (target.getTaskState() == IEntity.STATE_STOP) {
       mStart.setText("恢复");
       mStart.setTextColor(getResources().getColor(android.R.color.holo_blue_light));
@@ -240,8 +180,7 @@ public class SingleTaskActivity extends BaseActivity {
     } else if (target.isDownloading()) {
       setBtState(false);
     }
-    mSize.setText(target.getConvertFileSize());
-    Aria.get(this).getDownloadConfig().setOpenBreadCast(true);
+    getBinding().setFileSize(target.getConvertFileSize());
   }
 
   public void onClick(View view) {
@@ -251,6 +190,7 @@ public class SingleTaskActivity extends BaseActivity {
         if (text.equals("重新开始？") || text.equals("开始")) {
           Aria.download(this)
               .load(DOWNLOAD_URL)
+              .addHeader("groupName", "value")
               .setDownloadPath(Environment.getExternalStorageDirectory().getPath() + "/test.apk")
               .start();
         } else if (text.equals("恢复")) {
diff --git a/app/src/main/java/com/arialyy/simple/download/fragment_download/DownloadFragment.java b/app/src/main/java/com/arialyy/simple/download/fragment_download/DownloadFragment.java
index d78f82fe..8e34589b 100644
--- a/app/src/main/java/com/arialyy/simple/download/fragment_download/DownloadFragment.java
+++ b/app/src/main/java/com/arialyy/simple/download/fragment_download/DownloadFragment.java
@@ -38,25 +38,20 @@ import com.arialyy.simple.widget.HorizontalProgressBarWithNumber;
  * Created by Aria.Lao on 2017/1/4.
  */
 public class DownloadFragment extends AbsFragment {
-  @Bind(R.id.progressBar) HorizontalProgressBarWithNumber mPb;
   @Bind(R.id.start) Button mStart;
   @Bind(R.id.stop) Button mStop;
   @Bind(R.id.cancel) Button mCancel;
-  @Bind(R.id.size) TextView mSize;
-  @Bind(R.id.speed) TextView mSpeed;
 
-  private static final String DOWNLOAD_URL =
-      "http://static.ilongyuan.cn/rayark/RayarkFZ_2.0.7.apk";
+  private static final String DOWNLOAD_URL = "http://static.ilongyuan.cn/rayark/RayarkFZ_2.0.7.apk";
 
   @Override protected void init(Bundle savedInstanceState) {
     if (Aria.download(this).taskExists(DOWNLOAD_URL)) {
       DownloadTarget target = Aria.download(this).load(DOWNLOAD_URL);
-      int p = (int) (target.getCurrentProgress() * 100 / target.getFileSize());
-      mPb.setProgress(p);
+      getBinding().setProgress(target.getPercent());
     }
     DownloadEntity entity = Aria.download(this).getDownloadEntity(DOWNLOAD_URL);
     if (entity != null) {
-      mSize.setText(CommonUtil.formatFileSize(entity.getFileSize()));
+      getBinding().setFileSize(CommonUtil.formatFileSize(entity.getFileSize()));
       int state = entity.getState();
       setBtState(state != DownloadEntity.STATE_RUNNING);
     } else {
@@ -83,30 +78,29 @@ public class DownloadFragment extends AbsFragment {
   }
 
   @Download.onTaskPre public void onTaskPre(DownloadTask task) {
-    mSize.setText(CommonUtil.formatFileSize(task.getFileSize()));
+    getBinding().setFileSize(task.getConvertFileSize());
     setBtState(false);
   }
 
   @Download.onTaskStop public void onTaskStop(DownloadTask task) {
     setBtState(true);
-    mSpeed.setText("0.0kb/s");
+    getBinding().setSpeed("0.0kb/s");
   }
 
   @Download.onTaskCancel public void onTaskCancel(DownloadTask task) {
     setBtState(true);
-    mPb.setProgress(0);
-    mSpeed.setText("0.0kb/s");
+    getBinding().setProgress(0);
+    getBinding().setSpeed("0.0kb/s");
   }
 
   @Download.onTaskRunning public void onTaskRunning(DownloadTask task) {
-    long current = task.getCurrentProgress();
     long len = task.getFileSize();
     if (len == 0) {
-      mPb.setProgress(0);
+      getBinding().setProgress(0);
     } else {
-      mPb.setProgress((int) ((current * 100) / len));
+      getBinding().setProgress(task.getPercent());
     }
-    mSpeed.setText(task.getConvertSpeed());
+    getBinding().setSpeed(task.getConvertSpeed());
   }
 
   @Override protected void onDelayLoad() {
diff --git a/app/src/main/java/com/arialyy/simple/download/group/DownloadGroupActivity.java b/app/src/main/java/com/arialyy/simple/download/group/DownloadGroupActivity.java
new file mode 100644
index 00000000..b5471182
--- /dev/null
+++ b/app/src/main/java/com/arialyy/simple/download/group/DownloadGroupActivity.java
@@ -0,0 +1,131 @@
+/*
+ * Copyright (C) 2016 AriaLyy(https://github.com/AriaLyy/Aria)
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package com.arialyy.simple.download.group;
+
+import android.os.Bundle;
+import android.os.Environment;
+import android.view.View;
+import android.widget.Button;
+import butterknife.Bind;
+import com.arialyy.annotations.DownloadGroup;
+import com.arialyy.aria.core.Aria;
+import com.arialyy.aria.core.download.DownloadGroupEntity;
+import com.arialyy.aria.core.download.DownloadGroupTask;
+import com.arialyy.aria.core.download.DownloadGroupTaskEntity;
+import com.arialyy.frame.util.show.L;
+import com.arialyy.frame.util.show.T;
+import com.arialyy.simple.R;
+import com.arialyy.simple.base.BaseActivity;
+import com.arialyy.simple.databinding.ActivityDownloadGroupBinding;
+import com.arialyy.simple.widget.SubStateLinearLayout;
+import java.util.List;
+
+/**
+ * Created by Aria.Lao on 2017/7/6.
+ */
+public class DownloadGroupActivity extends BaseActivity {
+
+  @Bind(R.id.start) Button mStart;
+  @Bind(R.id.stop) Button mStop;
+  @Bind(R.id.cancel) Button mCancel;
+  @Bind(R.id.child_list) SubStateLinearLayout mChildList;
+  List mUrls;
+
+  @Override protected void init(Bundle savedInstanceState) {
+    super.init(savedInstanceState);
+    Aria.download(this).register();
+    setTitle("任务组");
+    mUrls = getModule(GroupModule.class).getUrls();
+    DownloadGroupTaskEntity entity = Aria.download(this).getDownloadGroupTask(mUrls);
+    if (entity != null && entity.getEntity() != null) {
+      DownloadGroupEntity groupEntity = entity.getEntity();
+      mChildList.addData(groupEntity.getSubTask());
+      getBinding().setFileSize(groupEntity.getConvertFileSize());
+      if (groupEntity.getFileSize() == 0) {
+        getBinding().setProgress(0);
+      } else {
+        getBinding().setProgress(groupEntity.isComplete() ? 100
+            : (int) (groupEntity.getCurrentProgress() * 100 / groupEntity.getFileSize()));
+      }
+    }
+  }
+
+  @Override protected int setLayoutId() {
+    return R.layout.activity_download_group;
+  }
+
+  public void onClick(View view) {
+    switch (view.getId()) {
+      case R.id.start:
+        Aria.download(this)
+            .load(mUrls)
+            .setDownloadDirPath(
+                Environment.getExternalStorageDirectory().getPath() + "/Download/group_test_3")
+            .setGroupAlias("任务组测试")
+            .setSubTaskFileName(getModule(GroupModule.class).getSubName())
+            .start();
+        break;
+      case R.id.stop:
+        Aria.download(this).load(mUrls).stop();
+        break;
+      case R.id.cancel:
+        Aria.download(this).load(mUrls).cancel();
+        break;
+    }
+  }
+
+  @DownloadGroup.onPre() protected void onPre(DownloadGroupTask task) {
+    L.d(TAG, "group pre");
+  }
+
+  @DownloadGroup.onTaskPre() protected void onTaskPre(DownloadGroupTask task) {
+    L.d(TAG, "group task pre");
+    getBinding().setFileSize(task.getConvertFileSize());
+  }
+
+  @DownloadGroup.onTaskStart() void taskStart(DownloadGroupTask task) {
+    L.d(TAG, "group task start");
+  }
+
+  @DownloadGroup.onTaskRunning() protected void running(DownloadGroupTask task) {
+    getBinding().setProgress(task.getPercent());
+    getBinding().setSpeed(task.getConvertSpeed());
+    mChildList.updateChildProgress(task.getEntity().getSubTask());
+  }
+
+  @DownloadGroup.onTaskResume() void taskResume(DownloadGroupTask task) {
+    L.d(TAG, "group task resume");
+  }
+
+  @DownloadGroup.onTaskStop() void taskStop(DownloadGroupTask task) {
+    L.d(TAG, "group task stop");
+    getBinding().setSpeed("");
+  }
+
+  @DownloadGroup.onTaskCancel() void taskCancel(DownloadGroupTask task) {
+    getBinding().setSpeed("");
+    getBinding().setProgress(0);
+  }
+
+  @DownloadGroup.onTaskFail() void taskFail(DownloadGroupTask task) {
+    L.d(TAG, "group task fail");
+  }
+
+  @DownloadGroup.onTaskComplete() void taskComplete(DownloadGroupTask task) {
+    getBinding().setProgress(100);
+    T.showShort(this, "任务组下载完成");
+  }
+}
diff --git a/app/src/main/java/com/arialyy/simple/download/group/GroupModule.java b/app/src/main/java/com/arialyy/simple/download/group/GroupModule.java
new file mode 100644
index 00000000..221212e4
--- /dev/null
+++ b/app/src/main/java/com/arialyy/simple/download/group/GroupModule.java
@@ -0,0 +1,54 @@
+/*
+ * Copyright (C) 2016 AriaLyy(https://github.com/AriaLyy/Aria)
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package com.arialyy.simple.download.group;
+
+import android.content.Context;
+import com.arialyy.simple.R;
+import com.arialyy.simple.base.BaseModule;
+import java.util.ArrayList;
+import java.util.Collections;
+import java.util.List;
+
+/**
+ * Created by Aria.Lao on 2017/7/6.
+ */
+public class GroupModule extends BaseModule {
+  public GroupModule(Context context) {
+    super(context);
+  }
+
+  List getUrls() {
+    List urls = new ArrayList<>();
+    String[] str = getContext().getResources().getStringArray(R.array.group_urls);
+    Collections.addAll(urls, str);
+    return urls;
+  }
+
+  List getSubName(){
+    List names = new ArrayList<>();
+    String[] str = getContext().getResources().getStringArray(R.array.group_names);
+    Collections.addAll(names, str);
+    return names;
+  }
+
+  //NormalList convertPath(NormalList urls){
+  //  NormalList paths = new ArrayList<>();
+  //
+  //  for (String url : urls){
+  //
+  //  }
+  //}
+}
diff --git a/app/src/main/java/com/arialyy/simple/download/multi_download/DownloadAdapter.java b/app/src/main/java/com/arialyy/simple/download/multi_download/DownloadAdapter.java
index 16ccf516..676d2bf8 100644
--- a/app/src/main/java/com/arialyy/simple/download/multi_download/DownloadAdapter.java
+++ b/app/src/main/java/com/arialyy/simple/download/multi_download/DownloadAdapter.java
@@ -16,6 +16,7 @@
 
 package com.arialyy.simple.download.multi_download;
 
+import android.annotation.SuppressLint;
 import android.content.Context;
 import android.content.res.Resources;
 import android.view.View;
@@ -24,12 +25,15 @@ import android.widget.TextView;
 import butterknife.Bind;
 import com.arialyy.aria.core.Aria;
 import com.arialyy.aria.core.download.DownloadEntity;
+import com.arialyy.aria.core.download.DownloadGroupEntity;
+import com.arialyy.aria.core.inf.AbsEntity;
 import com.arialyy.aria.core.inf.IEntity;
 import com.arialyy.aria.util.CommonUtil;
 import com.arialyy.simple.R;
 import com.arialyy.simple.base.adapter.AbsHolder;
 import com.arialyy.simple.base.adapter.AbsRVAdapter;
 import com.arialyy.simple.widget.HorizontalProgressBarWithNumber;
+import com.arialyy.simple.widget.SubStateLinearLayout;
 import java.util.List;
 import java.util.Map;
 import java.util.Set;
@@ -39,21 +43,32 @@ import java.util.concurrent.ConcurrentHashMap;
  * Created by Lyy on 2016/9/27.
  * 下载列表适配器
  */
-public class DownloadAdapter extends AbsRVAdapter {
+public class DownloadAdapter extends AbsRVAdapter {
   private static final String TAG = "DownloadAdapter";
   private Map mPositions = new ConcurrentHashMap<>();
 
-  public DownloadAdapter(Context context, List data) {
+  public DownloadAdapter(Context context, List data) {
     super(context, data);
     int i = 0;
-    for (DownloadEntity entity : data) {
-      mPositions.put(entity.getDownloadUrl(), i);
+    for (AbsEntity entity : data) {
+      mPositions.put(getKey(entity), i);
       i++;
     }
   }
 
-  @Override protected MyHolder getViewHolder(View convertView, int viewType) {
-    return new MyHolder(convertView);
+  private String getKey(AbsEntity entity) {
+    if (entity instanceof DownloadEntity) {
+      return ((DownloadEntity) entity).getDownloadUrl();
+    } else if (entity instanceof DownloadGroupEntity) {
+      return ((DownloadGroupEntity) entity).getGroupName();
+    }
+    return "";
+  }
+
+  @Override protected SimpleHolder getViewHolder(View convertView, int viewType) {
+    if (viewType == 1) return new SimpleHolder(convertView);
+    if (viewType == 2) return new GroupHolder(convertView);
+    return null;
   }
 
   public void addDownloadEntity(DownloadEntity entity) {
@@ -61,21 +76,33 @@ public class DownloadAdapter extends AbsRVAdapter= mData.size()) {
         return;
       }
@@ -84,15 +111,18 @@ public class DownloadAdapter extends AbsRVAdapter= mData.size()) {
       return;
     }
 
     mData.set(position, entity);
-    notifyItemChanged(position);
+    notifyItemChanged(position, entity);
   }
 
   private synchronized int indexItem(String url) {
@@ -105,51 +135,97 @@ public class DownloadAdapter extends AbsRVAdapter payloads) {
+    AbsEntity entity = (AbsEntity) payloads.get(0);
+    updateSpeed(holder, entity);
+  }
+
+  /**
+   * 只更新速度
+   */
+  private void updateSpeed(SimpleHolder holder, final AbsEntity entity) {
+    long size = entity.getFileSize();
+    long progress = entity.getCurrentProgress();
+    int current = size == 0 ? 0 : (int) (progress * 100 / size);
+    holder.speed.setText(entity.getConvertSpeed());
+    holder.fileSize.setText(covertCurrentSize(progress) + "/" + CommonUtil.formatFileSize(size));
     holder.progress.setProgress(current);
-    BtClickListener listener = new BtClickListener(item);
-    holder.bt.setOnClickListener(listener);
-    holder.name.setText("文件名：" + item.getFileName());
-    holder.url.setText("下载地址：" + item.getDownloadUrl());
-    holder.path.setText("保持路径：" + item.getDownloadPath());
+    //if (holder instanceof GroupHolder){
+    //  handleSubChild((GroupHolder) holder, entity);
+    //}
+  }
+
+  @SuppressLint("SetTextI18n")
+  private void handleProgress(SimpleHolder holder, final AbsEntity entity) {
     String str = "";
     int color = android.R.color.holo_green_light;
-    switch (item.getState()) {
-      case DownloadEntity.STATE_WAIT:
-      case DownloadEntity.STATE_OTHER:
-      case DownloadEntity.STATE_FAIL:
+    switch (entity.getState()) {
+      case IEntity.STATE_WAIT:
+      case IEntity.STATE_OTHER:
+      case IEntity.STATE_FAIL:
         str = "开始";
         break;
-      case DownloadEntity.STATE_STOP:
+      case IEntity.STATE_STOP:
         str = "恢复";
         color = android.R.color.holo_blue_light;
         break;
-      case DownloadEntity.STATE_PRE:
-      case DownloadEntity.STATE_POST_PRE:
-      case DownloadEntity.STATE_RUNNING:
+      case IEntity.STATE_PRE:
+      case IEntity.STATE_POST_PRE:
+      case IEntity.STATE_RUNNING:
         str = "暂停";
         color = android.R.color.holo_red_light;
         break;
-      case DownloadEntity.STATE_COMPLETE:
+      case IEntity.STATE_COMPLETE:
         str = "重新开始？";
         holder.progress.setProgress(100);
         break;
     }
+    long size = entity.getFileSize();
+    long progress = entity.getCurrentProgress();
+    int current = size == 0 ? 0 : (int) (progress * 100 / size);
     holder.bt.setText(str);
     holder.bt.setTextColor(getColor(color));
-    holder.speed.setText(item.getConvertSpeed());
+    holder.progress.setProgress(current);
+
+    BtClickListener listener = new BtClickListener(entity);
+    holder.bt.setOnClickListener(listener);
+    String name = (isSimpleDownload(entity) ? ((DownloadEntity) entity).getFileName()
+        : ((DownloadGroupEntity) entity).getAlias());
+    holder.name.setText("文件名：" + name);
+    holder.speed.setText(entity.getConvertSpeed());
     holder.fileSize.setText(covertCurrentSize(progress) + "/" + CommonUtil.formatFileSize(size));
+    //删除按钮事件
     holder.cancel.setOnClickListener(new View.OnClickListener() {
       @Override public void onClick(View v) {
-        mData.remove(item);
+        mData.remove(entity);
         notifyDataSetChanged();
-        Aria.download(getContext()).load(item).cancel();
+        if (isSimpleDownload(entity)) {
+          Aria.download(getContext()).load((DownloadEntity) entity).cancel();
+        } else {
+          Aria.download(getContext()).load((DownloadGroupEntity) entity).cancel();
+        }
       }
     });
+    //if (holder instanceof GroupHolder){
+    //  handleSubChild((GroupHolder) holder, entity);
+    //}
+  }
+
+  private void handleSubChild(GroupHolder holder, final AbsEntity entity) {
+    if (holder.childList.getSubData().size() > 0){
+      holder.childList.updateChildProgress(((DownloadGroupEntity)entity).getSubTask());
+    }else {
+      holder.childList.addData(((DownloadGroupEntity)entity).getSubTask());
+    }
+  }
+
+  private boolean isSimpleDownload(AbsEntity entity) {
+    return entity instanceof DownloadEntity;
   }
 
   private String covertCurrentSize(long currentSize) {
@@ -161,49 +237,67 @@ public class DownloadAdapter extends AbsRVAdapter {
   @Bind(R.id.list) RecyclerView mList;
   private DownloadAdapter mAdapter;
-  private List mData = new ArrayList<>();
-
-  String[] mFilterStr = new String[] {
-      "https://g37.gdl.netease.com/onmyoji_netease_10_1.0.20.apk",
-      "http://static.gaoshouyou.com/d/eb/f2/dfeba30541f209ab8a50d847fc1661ce.apk"
-  };
+  private List mData = new ArrayList<>();
 
   @Override protected int setLayoutId() {
     return R.layout.activity_multi_download;
@@ -56,7 +52,7 @@ public class MultiDownloadActivity extends BaseActivity temps = Aria.download(this).getTaskList();
+    List temps = Aria.download(this).getTotleTaskList();
     if (temps != null && !temps.isEmpty()) {
       mData.addAll(temps);
     }
@@ -76,40 +72,68 @@ public class MultiDownloadActivity extends BaseActivity {
   @OnClick(R.id.upload) void upload() {
     Aria.upload(this)
         .load(FILE_PATH)
-        .setUploadUrl("http://172.18.104.228:8080/upload/sign_file")
+        .setUploadUrl("http://172.18.104.129:8080/upload/sign_file")
         .setAttachment("file")
         .start();
   }
diff --git a/app/src/main/java/com/arialyy/simple/widget/NoScrollListView.java b/app/src/main/java/com/arialyy/simple/widget/NoScrollListView.java
new file mode 100644
index 00000000..b481ca64
--- /dev/null
+++ b/app/src/main/java/com/arialyy/simple/widget/NoScrollListView.java
@@ -0,0 +1,43 @@
+/*
+ * Copyright (C) 2016 AriaLyy(https://github.com/AriaLyy/Aria)
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package com.arialyy.simple.widget;
+
+import android.content.Context;
+import android.util.AttributeSet;
+import android.widget.ListView;
+
+/**
+ * Created by lyy on 2015/4/22.
+ * 不带有滑动功能的ListView
+ */
+public class NoScrollListView extends ListView {
+  public NoScrollListView(Context context) {
+    super(context);
+  }
+
+  public NoScrollListView(Context context, AttributeSet attrs) {
+    super(context, attrs);
+  }
+
+  public NoScrollListView(Context context, AttributeSet attrs, int defStyleAttr) {
+    super(context, attrs, defStyleAttr);
+  }
+
+  @Override protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) {
+    int expandSpec = MeasureSpec.makeMeasureSpec(Integer.MAX_VALUE >> 2, MeasureSpec.AT_MOST);
+    super.onMeasure(widthMeasureSpec, expandSpec);
+  }
+}
\ No newline at end of file
diff --git a/app/src/main/java/com/arialyy/simple/widget/SubStateLinearLayout.java b/app/src/main/java/com/arialyy/simple/widget/SubStateLinearLayout.java
new file mode 100644
index 00000000..6c6b4660
--- /dev/null
+++ b/app/src/main/java/com/arialyy/simple/widget/SubStateLinearLayout.java
@@ -0,0 +1,121 @@
+package com.arialyy.simple.widget;
+
+import android.content.Context;
+import android.support.annotation.Nullable;
+import android.util.AttributeSet;
+import android.view.LayoutInflater;
+import android.view.View;
+import android.widget.LinearLayout;
+import android.widget.TextView;
+import com.arialyy.aria.core.download.DownloadEntity;
+import com.arialyy.simple.R;
+import java.util.LinkedList;
+import java.util.List;
+import java.util.Map;
+import java.util.WeakHashMap;
+
+/**
+ * Created by Aria.Lao on 2017/7/17.
+ */
+public class SubStateLinearLayout extends LinearLayout {
+
+  interface OnShowCallback {
+    void onShow(boolean visibility);
+  }
+
+  OnShowCallback callback;
+
+  List mSubData = new LinkedList<>();
+  Map mPosition = new WeakHashMap<>();
+
+  public SubStateLinearLayout(Context context) {
+    super(context);
+    setOrientation(VERTICAL);
+  }
+
+  public SubStateLinearLayout(Context context, @Nullable AttributeSet attrs) {
+    super(context, attrs);
+    setOrientation(VERTICAL);
+  }
+
+  public SubStateLinearLayout(Context context, @Nullable AttributeSet attrs, int defStyleAttr) {
+    super(context, attrs, defStyleAttr);
+    setOrientation(VERTICAL);
+  }
+
+  public void addData(List datas) {
+    removeAllViews();
+    mSubData.clear();
+    mSubData.addAll(datas);
+    createShowView();
+    int i = 1;
+    for (DownloadEntity entity : datas) {
+      TextView view = createView(entity);
+      mPosition.put(entity.getDownloadPath(), i);
+      addView(view, i);
+      i++;
+    }
+  }
+
+  public void setOnShowCallback(OnShowCallback callback) {
+    this.callback = callback;
+  }
+
+  public List getSubData() {
+    return mSubData;
+  }
+
+  public void updateChildProgress(List entities) {
+    for (DownloadEntity entity : entities) {
+      Integer i = mPosition.get(entity.getDownloadPath());
+      if (i == null) return;
+      int position = i;
+      if (position != -1) {
+        TextView child = ((TextView) getChildAt(position));
+        int p = getPercent(entity);
+        child.setText(entity.getFileName() + ": " + p + "%" + "   | " + entity.getConvertSpeed());
+        child.invalidate();
+      }
+    }
+  }
+
+  private TextView createView(DownloadEntity entity) {
+    TextView view =
+        (TextView) LayoutInflater.from(getContext()).inflate(R.layout.layout_child_state, null);
+    view.setText(entity.getFileName() + ": " + getPercent(entity) + "%");
+    return view;
+  }
+
+  private void createShowView() {
+
+    TextView view =
+        (TextView) LayoutInflater.from(getContext()).inflate(R.layout.layout_child_state, null);
+    view.setText("点击显示子任务");
+    view.setOnClickListener(new OnClickListener() {
+      @Override public void onClick(View v) {
+        int visibility = getChildAt(1).getVisibility();
+        if (visibility == GONE) {
+          showChild(true);
+          ((TextView) v).setText("点击隐藏子任务");
+        } else {
+          showChild(false);
+          ((TextView) v).setText("点击显示子任务");
+        }
+      }
+    });
+    addView(view, 0);
+  }
+
+  private void showChild(boolean show) {
+    for (int i = 1, count = getChildCount(); i < count; i++) {
+      getChildAt(i).setVisibility(show ? VISIBLE : GONE);
+      invalidate();
+    }
+  }
+
+  private int getPercent(DownloadEntity entity) {
+    long size = entity.getFileSize();
+    long progress = entity.getCurrentProgress();
+    return size == 0 ? 0 : (int) (progress * 100 / size);
+  }
+}
diff --git a/app/src/main/res/layout/activity_download_group.xml b/app/src/main/res/layout/activity_download_group.xml
new file mode 100644
index 00000000..98d73bdc
--- /dev/null
+++ b/app/src/main/res/layout/activity_download_group.xml
@@ -0,0 +1,44 @@
+
+
+  
+    
+    
+    
+  
+
+  
+
+    
+
+    
+
+    
+
+  
+
diff --git a/app/src/main/res/layout/activity_main.xml b/app/src/main/res/layout/activity_main.xml
index 84e60c71..17407578 100644
--- a/app/src/main/res/layout/activity_main.xml
+++ b/app/src/main/res/layout/activity_main.xml
@@ -13,7 +13,7 @@
         android:id="@+id/download"
         android:layout_width="match_parent"
         android:layout_height="wrap_content"
-        android:text="下载  demo"
+        android:text="下载"
         style="?buttonBarButtonStyle"
         />
 
@@ -21,15 +21,15 @@
         android:id="@+id/upload"
         android:layout_width="match_parent"
         android:layout_height="wrap_content"
-        android:text="上传  demo"
+        android:text="上传"
         style="?buttonBarButtonStyle"
         />