FTP 文件夹下载

Aria/src/main/java/com/arialyy/aria/core/download/BaseGroupTarget.java

@@ -32,15 +32,15 @@ abstract class BaseGroupTarget<TARGET extends AbsTarget, TASK_ENTITY extends Abs
     extends AbsDownloadTarget<TARGET, DownloadGroupEntity, TASK_ENTITY> {
 
   List<String> mUrls = new ArrayList<>();
+  String mGroupName;
   /**
    * 子任务文件名
    */
-  List<String> mSubTaskFileName = new ArrayList<>();
+  private List<String> mSubTaskFileName = new ArrayList<>();
-  String mGroupName;
   /**
    * 是否已经设置了文件路径
    */
-  boolean isSetDirPathed = false;
+  private boolean isSetDirPathed = false;
 
   /**
    * 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

Aria/src/main/java/com/arialyy/aria/core/download/DownloadGroupEntity.java

@@ -47,7 +47,7 @@ public class DownloadGroupEntity extends AbsGroupEntity {
     return subtask;
   }
 
-  void setSubTasks(List<DownloadEntity> subTasks) {
+  public void setSubTasks(List<DownloadEntity> subTasks) {
     this.subtask = subTasks;
   }
 
@@ -63,7 +63,7 @@ public class DownloadGroupEntity extends AbsGroupEntity {
     return urls;
   }
 
-  void setUrls(List<String> urls) {
+  public void setUrls(List<String> urls) {
     this.urls = urls;
   }
 

Aria/src/main/java/com/arialyy/aria/core/download/DownloadGroupTask.java

@@ -18,8 +18,10 @@ 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.FtpDirDownloadUtil;
 import com.arialyy.aria.core.download.downloader.IDownloadUtil;
 import com.arialyy.aria.core.inf.AbsGroupTask;
+import com.arialyy.aria.core.inf.AbsTaskEntity;
 import com.arialyy.aria.core.scheduler.ISchedulers;
 import com.arialyy.aria.util.CheckUtil;
 
@@ -38,7 +40,14 @@ public class DownloadGroupTask extends AbsGroupTask<DownloadGroupTaskEntity, Dow
     mOutHandler = outHandler;
     mContext = AriaManager.APP;
     mListener = new DownloadGroupListener(this, mOutHandler);
-    mUtil = new DownloadGroupUtil(mListener, mTaskEntity);
+    switch (taskEntity.requestType) {
+      case AbsTaskEntity.HTTP:
+        mUtil = new DownloadGroupUtil(mListener, mTaskEntity);
+        break;
+      case  AbsTaskEntity.FTP_DIR:
+        mUtil = new FtpDirDownloadUtil(mListener, mTaskEntity);
+        break;
+    }
   }
 
   @Override public boolean isRunning() {

Aria/src/main/java/com/arialyy/aria/core/download/DownloadReceiver.java

@@ -185,6 +185,15 @@ public class DownloadReceiver extends AbsReceiver {
     return DbEntity.findFirst(DownloadGroupTaskEntity.class, "key=?", hashCode);
   }
 
+  /**
+   * 通过任务组key，获取任务组实体
+   * 如果是http，key为所有子任务下载地址拼接后取md5
+   * 如果是ftp，key为ftp服务器的文件夹路径
+   */
+  public DownloadGroupTaskEntity getDownloadGroupTask(String key) {
+    return DbEntity.findFirst(DownloadGroupTaskEntity.class, "key=?", key);
+  }
+
   /**
    * 下载任务是否存在
    */

Aria/src/main/java/com/arialyy/aria/core/download/FtpDirDownloadTarget.java

@@ -27,23 +27,22 @@ import com.arialyy.aria.orm.DbEntity;
 public class FtpDirDownloadTarget
     extends BaseGroupTarget<FtpDirDownloadTarget, DownloadGroupTaskEntity> {
   private final String TAG = "FtpDirDownloadTarget";
-  private String serverIp, remotePath, mGroupName;
+  private String serverIp, remotePath;
   private int port;
 
   FtpDirDownloadTarget(String url, String targetName) {
     init(url);
     String[] pp = url.split("/")[2].split(":");
-    this.serverIp = pp[0];
+    mTargetName = targetName;
-    this.port = Integer.parseInt(pp[1]);
+    serverIp = pp[0];
-    mTaskEntity.requestType = AbsTaskEntity.FTP;
+    port = Integer.parseInt(pp[1]);
+    mTaskEntity.requestType = AbsTaskEntity.FTP_DIR;
+    mTaskEntity.serverIp = serverIp;
+    mTaskEntity.port = port;
     remotePath = url.substring(url.indexOf(pp[1]) + pp[1].length(), url.length());
     if (TextUtils.isEmpty(remotePath)) {
       throw new NullPointerException("ftp服务器地址不能为null");
     }
-    mTargetName = targetName;
-    int lastIndex = url.lastIndexOf("/");
-    mTaskEntity.remotePath = remotePath;
-    mEntity.setDirPath(url.substring(lastIndex + 1, url.length()));
   }
 
   private void init(String key) {

Aria/src/main/java/com/arialyy/aria/core/download/FtpDownloadTarget.java

@@ -42,7 +42,8 @@ public class FtpDownloadTarget extends DownloadTarget {
       throw new NullPointerException("ftp服务器地址不能为null");
     }
     int lastIndex = url.lastIndexOf("/");
-    mTaskEntity.remotePath = remotePath;
+    mTaskEntity.serverIp = serverIp;
+    mTaskEntity.port = port;
     mEntity.setFileName(url.substring(lastIndex + 1, url.length()));
   }
 

Aria/src/main/java/com/arialyy/aria/core/download/downloader/AbsFtpInfoThread.java

@@ -19,7 +19,6 @@ import android.text.TextUtils;
 import android.util.Log;
 import com.arialyy.aria.core.AriaManager;
 import com.arialyy.aria.core.inf.AbsEntity;
-import com.arialyy.aria.core.inf.AbsGroupEntity;
 import com.arialyy.aria.core.inf.AbsTaskEntity;
 import com.arialyy.aria.util.CommonUtil;
 import java.io.IOException;
@@ -36,11 +35,10 @@ abstract class AbsFtpInfoThread<ENTITY extends AbsEntity, TASK_ENTITY extends Ab
     implements Runnable {
 
   private final String TAG = "HttpFileInfoThread";
-  private ENTITY mEntity;
+  protected ENTITY mEntity;
-  private TASK_ENTITY mTaskEntity;
+  protected TASK_ENTITY mTaskEntity;
   private int mConnectTimeOut;
   private OnFileInfoCallback mCallback;
-  private boolean isDir = false;
 
   AbsFtpInfoThread(TASK_ENTITY taskEntity, OnFileInfoCallback callback) {
     mTaskEntity = taskEntity;
@@ -48,16 +46,18 @@ abstract class AbsFtpInfoThread<ENTITY extends AbsEntity, TASK_ENTITY extends Ab
     mConnectTimeOut =
         AriaManager.getInstance(AriaManager.APP).getDownloadConfig().getConnectTimeOut();
     mCallback = callback;
-    isDir = mEntity instanceof AbsGroupEntity;
   }
 
   @Override public void run() {
     FTPClient client = null;
     try {
+      String url = mTaskEntity.getEntity().getKey();
+      String[] pp = url.split("/")[2].split(":");
+      String serverIp = pp[0];
+      int port = Integer.parseInt(pp[1]);
+      String remotePath = url.substring(url.indexOf(pp[1]) + pp[1].length(), url.length());
       client = new FTPClient();
-      String[] pp = mEntity.getKey().split("/")[2].split(":");
+      client.connect(serverIp, port);
-      String fileName = mTaskEntity.remotePath;
-      client.connect(pp[0], Integer.parseInt(pp[1]));
       if (!TextUtils.isEmpty(mTaskEntity.account)) {
         client.login(mTaskEntity.userName, mTaskEntity.userPw);
       } else {
@@ -70,13 +70,27 @@ abstract class AbsFtpInfoThread<ENTITY extends AbsEntity, TASK_ENTITY extends Ab
         return;
       }
       client.setDataTimeout(mConnectTimeOut);
+      String charSet = "UTF-8";
+      // 开启服务器对UTF-8的支持，如果服务器支持就用UTF-8编码
+      if (!TextUtils.isEmpty(mTaskEntity.charSet) || !FTPReply.isPositiveCompletion(
+          client.sendCommand("OPTS UTF8", "ON"))) {
+        charSet = mTaskEntity.charSet;
+      }
+      client.setControlEncoding(charSet);
       client.enterLocalPassiveMode();
       client.setFileType(FTP.BINARY_FILE_TYPE);
       FTPFile[] files =
-          client.listFiles(CommonUtil.strCharSetConvert(fileName, mTaskEntity.charSet));
+          client.listFiles(new String(remotePath.getBytes(charSet), ConnectionHelp.SERVER_CHARSET));
-      long size = getFileSize(files, client, fileName);
+      long size = getFileSize(files, client, remotePath);
       mEntity.setFileSize(size);
+      reply = client.getReplyCode();
+      if (!FTPReply.isPositiveCompletion(reply)) {
+        client.disconnect();
+        failDownload("获取文件信息错误，错误码为：" + reply);
+        return;
+      }
       mTaskEntity.code = reply;
+      onPreComplete();
       mEntity.update();
       mTaskEntity.update();
       mCallback.onComplete(mEntity.getKey(), reply);
@@ -85,7 +99,6 @@ abstract class AbsFtpInfoThread<ENTITY extends AbsEntity, TASK_ENTITY extends Ab
     } finally {
       if (client != null) {
         try {
-          client.logout();
           client.disconnect();
         } catch (IOException e) {
           e.printStackTrace();
@@ -94,6 +107,14 @@ abstract class AbsFtpInfoThread<ENTITY extends AbsEntity, TASK_ENTITY extends Ab
     }
   }
 
+  void start() {
+    new Thread(this).start();
+  }
+
+  protected void onPreComplete() {
+
+  }
+
   /**
    * 遍历FTP服务器上对应文件或文件夹大小
    *
@@ -105,6 +126,7 @@ abstract class AbsFtpInfoThread<ENTITY extends AbsEntity, TASK_ENTITY extends Ab
     for (FTPFile file : files) {
       if (file.isFile()) {
         size += file.getSize();
+        handleFile(path + file.getName(), file);
       } else {
         size += getFileSize(client.listFiles(
             CommonUtil.strCharSetConvert(path + file.getName(), mTaskEntity.charSet)), client,

Aria/src/main/java/com/arialyy/aria/core/download/downloader/AbsGroupUtil.java

@@ -0,0 +1,397 @@
+/*
+ * 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.AriaManager;
+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.
+ * 任务组核心逻辑
+ */
+abstract class AbsGroupUtil implements IDownloadUtil {
+  private final String TAG = "DownloadGroupUtil";
+  /**
+   * 任务组所有任务总大小
+   */
+  long mTotalSize = 0;
+  private long mCurrentLocation = 0;
+  private ExecutorService mExePool;
+  protected IDownloadGroupListener mListener;
+  DownloadGroupTaskEntity mTaskEntity;
+  private boolean isRunning = true;
+  private Timer mTimer;
+  /**
+   * 初始化完成的任务书数
+   */
+  int mInitNum = 0;
+  /**
+   * 初始化失败的任务数
+   */
+  int mInitFailNum = 0;
+  /**
+   * 保存所有没有下载完成的任务，key为下载地址
+   */
+  Map<String, DownloadTaskEntity> mExeMap = new HashMap<>();
+
+  /**
+   * 下载失败的映射表，key为下载地址
+   */
+  Map<String, DownloadTaskEntity> mFailMap = new HashMap<>();
+
+  /**
+   * 下载器映射表，key为下载地址
+   */
+  private Map<String, Downloader> mDownloaderMap = new HashMap<>();
+
+  /**
+   * 该任务组对应的所有任务
+   */
+  private Map<String, DownloadTaskEntity> 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
+  int mActualTaskNum = 0;
+
+  AbsGroupUtil(IDownloadGroupListener listener, DownloadGroupTaskEntity taskEntity) {
+    mListener = listener;
+    mTaskEntity = taskEntity;
+    mExePool = Executors.newFixedThreadPool(Runtime.getRuntime().availableProcessors());
+    List<DownloadTaskEntity> 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.getState() == IEntity.STATE_COMPLETE && file.exists()) {
+        mCompleteNum++;
+        mInitNum++;
+        mCurrentLocation += entity.getFileSize();
+      } else {
+        mExeMap.put(entity.getDownloadUrl(), createChildDownloadTask(entity));
+        mCurrentLocation += entity.getCurrentProgress();
+        mActualTaskNum++;
+      }
+      mTotalSize += entity.getFileSize();
+    }
+  }
+
+  @Override public long getFileSize() {
+    return mTotalSize;
+  }
+
+  @Override public long getCurrentLocation() {
+    return mCurrentLocation;
+  }
+
+  @Override public boolean isDownloading() {
+    return isRunning;
+  }
+
+  @Override public void cancelDownload() {
+    closeTimer(false);
+    mListener.onCancel();
+    onCancel();
+    if (!mExePool.isShutdown()) {
+      mExePool.shutdown();
+    }
+
+    Set<String> keys = mDownloaderMap.keySet();
+    for (String key : keys) {
+      Downloader dt = mDownloaderMap.get(key);
+      if (dt != null) {
+        dt.cancelDownload();
+      }
+    }
+    delDownloadInfo();
+    mTaskEntity.deleteData();
+  }
+
+  public void onCancel() {
+
+  }
+
+  /**
+   * 删除所有子任务的下载信息
+   */
+  private void delDownloadInfo() {
+    List<DownloadTaskEntity> 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() {
+    closeTimer(false);
+    mListener.onStop(mCurrentLocation);
+    onStop();
+    if (!mExePool.isShutdown()) {
+      mExePool.shutdown();
+    }
+
+    Set<String> keys = mDownloaderMap.keySet();
+    for (String key : keys) {
+      Downloader dt = mDownloaderMap.get(key);
+      if (dt != null) {
+        dt.stopDownload();
+      }
+    }
+  }
+
+  protected void onStop() {
+
+  }
+
+  @Override public void startDownload() {
+    isRunning = true;
+    mFailNum = 0;
+    mListener.onPre();
+    onStart();
+  }
+
+  protected void onStart() {
+
+  }
+
+  @Override public void resumeDownload() {
+    startDownload();
+    mListener.onResume(mCurrentLocation);
+  }
+
+  @Override public void setMaxSpeed(double maxSpeed) {
+
+  }
+
+  private void closeTimer(boolean isRunning) {
+    this.isRunning = isRunning;
+    if (mTimer != null) {
+      mTimer.purge();
+      mTimer.cancel();
+    }
+  }
+
+  /**
+   * 开始进度流程
+   */
+  void startRunningFlow() {
+    closeTimer(true);
+    mListener.onPostPre(mTotalSize);
+    mListener.onStart(mCurrentLocation);
+    mTimer = new Timer(true);
+    mTimer.schedule(new TimerTask() {
+      @Override public void run() {
+        if (!isRunning) {
+          closeTimer(false);
+        } else if (mCurrentLocation >= 0) {
+          mListener.onProgress(mCurrentLocation);
+        }
+      }
+    }, 0, 1000);
+  }
+
+  /**
+   * 启动子任务下载器
+   */
+  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
+   */
+  DownloadTaskEntity createChildDownloadTask(DownloadEntity entity) {
+    DownloadTaskEntity taskEntity = mTasksMap.get(entity.getDownloadUrl());
+    if (taskEntity != null) {
+      taskEntity.entity = entity;
+      //ftp登录的
+      taskEntity.userName = mTaskEntity.userName;
+      taskEntity.userPw = mTaskEntity.userPw;
+      taskEntity.account = mTaskEntity.account;
+      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.requestType = mTaskEntity.requestType;
+    //ftp登录的
+    taskEntity.userName = mTaskEntity.userName;
+    taskEntity.userPw = mTaskEntity.userPw;
+    taskEntity.account = mTaskEntity.account;
+    taskEntity.key = entity.getDownloadPath();
+    taskEntity.save();
+    return taskEntity;
+  }
+
+  /**
+   * 子任务事件监听
+   */
+  private class ChildDownloadListener implements IDownloadListener {
+
+    DownloadTaskEntity taskEntity;
+    DownloadEntity entity;
+
+    long lastLen = 0;
+
+    ChildDownloadListener(DownloadTaskEntity entity) {
+      this.taskEntity = entity;
+      this.entity = taskEntity.getEntity();
+      lastLen = this.entity.getCurrentProgress();
+      this.entity.setFailNum(0);
+    }
+
+    @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);
+      mListener.onSubStop(entity);
+    }
+
+    @Override public void onCancel() {
+      saveData(IEntity.STATE_CANCEL, -1);
+      handleSpeed(0);
+      mListener.onSubCancel(entity);
+    }
+
+    @Override public void onComplete() {
+      saveData(IEntity.STATE_COMPLETE, entity.getFileSize());
+      mCompleteNum++;
+      handleSpeed(0);
+      mListener.onSubComplete(entity);
+      //如果子任务完成的数量和总任务数一致，表示任务组任务已经完成
+      if (mCompleteNum >= mTaskEntity.getEntity().getSubTask().size()) {
+        closeTimer(false);
+        mListener.onComplete();
+      } else if (mCompleteNum + mFailNum >= mActualTaskNum) {
+        //如果子任务完成数量加上失败的数量和总任务数一致，则任务组停止下载
+        closeTimer(false);
+      }
+    }
+
+    @Override public void onFail() {
+      entity.setFailNum(entity.getFailNum() + 1);
+      saveData(IEntity.STATE_FAIL, lastLen);
+      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() {
+      synchronized (AriaManager.LOCK) {
+        if (entity.getFailNum() < 5 && isRunning) {
+          reStartTask();
+        } else {
+          mFailNum++;
+          mListener.onSubFail(entity);
+          //如果失败的任务数大于实际的下载任务数，任务组停止下载
+          if (mFailNum >= mActualTaskNum) {
+            closeTimer(false);
+            mListener.onStop(mCurrentLocation);
+          }
+        }
+      }
+    }
+
+    private void reStartTask() {
+      Timer timer = new Timer();
+      timer.schedule(new TimerTask() {
+        @Override public void run() {
+          Downloader dt = mDownloaderMap.get(entity.getDownloadUrl());
+          dt.startDownload();
+        }
+      }, 3000);
+    }
+
+    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 if (location > 0) {
+        entity.setCurrentProgress(location);
+      }
+      entity.update();
+    }
+
+    @Override public void supportBreakpoint(boolean support) {
+
+    }
+  }
+}

Aria/src/main/java/com/arialyy/aria/core/download/downloader/AbsThreadTask.java

@@ -154,6 +154,8 @@ abstract class AbsThreadTask implements Runnable {
         STATE.isStop = true;
         if (ex != null) {
           Log.e(TAG, msg + "\n" + CommonUtil.getPrintException(ex));
+        }else {
+          Log.e(TAG, msg);
         }
         if (mConfig.IS_SUPPORT_BREAK_POINT) {
           writeConfig(false, currentLocation);

Aria/src/main/java/com/arialyy/aria/core/download/downloader/ConnectionHelp.java

@@ -26,12 +26,18 @@ import java.util.Set;
 import javax.net.ssl.HttpsURLConnection;
 import javax.net.ssl.SSLContext;
 import javax.net.ssl.SSLSocketFactory;
+import org.apache.commons.net.ftp.FTPClient;
 
 /**
  * Created by lyy on 2017/1/18.
  * 链接帮助类
  */
 class ConnectionHelp {
+  /**
+   * FTP 服务器编码
+   */
+  static String SERVER_CHARSET = "ISO-8859-1";
+
   /**
    * 处理链接
    *

Aria/src/main/java/com/arialyy/aria/core/download/downloader/DownloadGroupUtil.java

@@ -16,19 +16,10 @@
 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;
 
@@ -36,153 +27,37 @@ import java.util.concurrent.Executors;
  * Created by AriaL on 2017/6/30.
  * 任务组下载工具
  */
-public class DownloadGroupUtil implements IDownloadUtil {
+public class DownloadGroupUtil extends AbsGroupUtil 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 IDownloadGroupListener 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<String, DownloadTaskEntity> mExeMap = new HashMap<>();
-
-  /**
-   * 下载失败的映射表，key为下载地址
-   */
-  private Map<String, DownloadTaskEntity> mFailMap = new HashMap<>();
-
-  /**
-   * 下载器映射表，key为下载地址
-   */
-  private Map<String, Downloader> mDownloaderMap = new HashMap<>();
 
   /**
    * 文件信息回调组
    */
   private SparseArray<OnFileInfoCallback> mFileInfoCallbacks = new SparseArray<>();
-  /**
-   * 该任务组对应的所有任务
-   */
-  private Map<String, DownloadTaskEntity> 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(IDownloadGroupListener listener, DownloadGroupTaskEntity taskEntity) {
-    mListener = listener;
+    super(listener, taskEntity);
-    mTaskEntity = taskEntity;
     mInfoPool = Executors.newCachedThreadPool();
-    mExePool = Executors.newFixedThreadPool(Runtime.getRuntime().availableProcessors());
-    mActualTaskNum = mTaskEntity.entity.getSubTask().size();
-    List<DownloadTaskEntity> 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.getState() == IEntity.STATE_COMPLETE && file.exists()) {
-        mCompleteNum++;
-        mInitNum++;
-        mCurrentLocation += entity.getFileSize();
-      } else {
-        mExeMap.put(entity.getDownloadUrl(), createChildDownloadTask(entity));
-        mCurrentLocation += entity.getCurrentProgress();
-      }
-      mTotalSize += entity.getFileSize();
-    }
   }
 
-  @Override public long getFileSize() {
+  @Override public void onCancel() {
-    return mTotalSize;
+    super.onCancel();
-  }
-
-  @Override public long getCurrentLocation() {
-    return mCurrentLocation;
-  }
-
-  @Override public boolean isDownloading() {
-    return isRunning;
-  }
-
-  @Override public void cancelDownload() {
-    closeTimer(false);
-    mListener.onCancel();
     if (!mInfoPool.isShutdown()) {
       mInfoPool.shutdown();
     }
-    if (!mExePool.isShutdown()) {
-      mExePool.shutdown();
-    }
-
-    Set<String> keys = mDownloaderMap.keySet();
-    for (String key : keys) {
-      Downloader dt = mDownloaderMap.get(key);
-      if (dt != null) {
-        dt.cancelDownload();
-      }
-    }
-    delDownloadInfo();
-    mTaskEntity.deleteData();
   }
 
-  /**
+  @Override protected void onStop() {
-   * 删除所有子任务的下载信息
+    super.onStop();
-   */
-  private void delDownloadInfo() {
-    List<DownloadTaskEntity> 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() {
-    closeTimer(false);
-    mListener.onStop(mCurrentLocation);
     if (!mInfoPool.isShutdown()) {
       mInfoPool.shutdown();
     }
-    if (!mExePool.isShutdown()) {
-      mExePool.shutdown();
-    }
-
-    Set<String> keys = mDownloaderMap.keySet();
-    for (String key : keys) {
-      Downloader dt = mDownloaderMap.get(key);
-      if (dt != null) {
-        dt.stopDownload();
-      }
-    }
   }
 
-  @Override public void startDownload() {
+  @Override protected void onStart() {
-    isRunning = true;
+    super.onStart();
-    mFailNum = 0;
     Set<String> keys = mExeMap.keySet();
-    mListener.onPre();
     int i = 0;
     for (String key : keys) {
       DownloadTaskEntity taskEntity = mExeMap.get(key);
@@ -199,15 +74,6 @@ public class DownloadGroupUtil implements IDownloadUtil {
     if (i == mExeMap.size()) startRunningFlow();
   }
 
-  @Override public void resumeDownload() {
-    startDownload();
-    mListener.onResume(mCurrentLocation);
-  }
-
-  @Override public void setMaxSpeed(double maxSpeed) {
-
-  }
-
   /**
    * 创建文件信息获取线程
    */
@@ -254,193 +120,4 @@ public class DownloadGroupUtil implements IDownloadUtil {
     }
     return new HttpFileInfoThread(taskEntity, callback);
   }
-
-  private void closeTimer(boolean isRunning) {
-    this.isRunning = isRunning;
-    if (mTimer != null) {
-      mTimer.purge();
-      mTimer.cancel();
-    }
-  }
-
-  /**
-   * 开始进度流程
-   */
-  private void startRunningFlow() {
-    closeTimer(true);
-    mListener.onPostPre(mTotalSize);
-    mListener.onStart(mCurrentLocation);
-    mTimer = new Timer(true);
-    mTimer.schedule(new TimerTask() {
-      @Override public void run() {
-        if (!isRunning) {
-          closeTimer(false);
-        } else 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 implements IDownloadListener {
-
-    DownloadTaskEntity taskEntity;
-    DownloadEntity entity;
-
-    long lastLen = 0;
-
-    ChildDownloadListener(DownloadTaskEntity entity) {
-      this.taskEntity = entity;
-      this.entity = taskEntity.getEntity();
-      lastLen = this.entity.getCurrentProgress();
-      this.entity.setFailNum(0);
-    }
-
-    @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);
-      mListener.onSubStop(entity);
-    }
-
-    @Override public void onCancel() {
-      saveData(IEntity.STATE_CANCEL, -1);
-      handleSpeed(0);
-      mListener.onSubCancel(entity);
-    }
-
-    @Override public void onComplete() {
-      saveData(IEntity.STATE_COMPLETE, entity.getFileSize());
-      mCompleteNum++;
-      handleSpeed(0);
-      mListener.onSubComplete(entity);
-      //如果子任务完成的数量和总任务数一致，表示任务组任务已经完成
-      if (mCompleteNum >= mTaskEntity.getEntity().getSubTask().size()) {
-        closeTimer(false);
-        mListener.onComplete();
-      } else if (mCompleteNum + mFailNum >= mActualTaskNum) {
-        //如果子任务完成数量加上失败的数量和总任务数一致，则任务组停止下载
-        closeTimer(false);
-        mListener.onComplete();
-      }
-    }
-
-    @Override public void onFail() {
-      entity.setFailNum(entity.getFailNum() + 1);
-      saveData(IEntity.STATE_FAIL, lastLen);
-      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) {
-        reStartTask();
-      } else {
-        mFailNum++;
-        mListener.onSubFail(entity);
-        //如果失败的任务数大于实际的下载任务数，任务组停止下载
-        if (mFailNum >= mActualTaskNum) {
-          closeTimer(false);
-          mListener.onStop(mCurrentLocation);
-        }
-      }
-    }
-
-    private void reStartTask() {
-      Timer timer = new Timer();
-      timer.schedule(new TimerTask() {
-        @Override public void run() {
-          Downloader dt = mDownloaderMap.get(entity.getDownloadUrl());
-          dt.startDownload();
-        }
-      }, 3000);
-    }
-
-    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 if (location > 0) {
-        entity.setCurrentProgress(location);
-      }
-      entity.update();
-    }
-
-    @Override public void supportBreakpoint(boolean support) {
-
-    }
-  }
 }

Aria/src/main/java/com/arialyy/aria/core/download/downloader/Downloader.java

@@ -96,8 +96,10 @@ class Downloader implements Runnable, IDownloadUtil {
       mConstance.THREAD_NUM = mThreadNum;
       handleNoSupportBreakpointDownload();
     } else {
-      mThreadNum = isNewTask ? (mEntity.getFileSize() <= SUB_LEN ? 1
+      mThreadNum = isNewTask ? (
-          : AriaManager.getInstance(mContext).getDownloadConfig().getThreadNum()) : mRealThreadNum;
+          mEntity.getFileSize() <= SUB_LEN || mTaskEntity.requestType == AbsTaskEntity.FTP_DIR ? 1
+              : AriaManager.getInstance(mContext).getDownloadConfig().getThreadNum())
+          : mRealThreadNum;
       mConstance.THREAD_NUM = mThreadNum;
       mFixedThreadPool = Executors.newFixedThreadPool(mThreadNum);
       handleBreakpoint();
@@ -416,7 +418,7 @@ class Downloader implements Runnable, IDownloadUtil {
   private AbsThreadTask createThreadTask(SubThreadConfig config) {
     switch (mTaskEntity.requestType) {
       case AbsTaskEntity.FTP:
-        config.remotePath = mTaskEntity.remotePath;
+      case AbsTaskEntity.FTP_DIR:
         return new FtpThreadTask(mConstance, mListener, config);
       case AbsTaskEntity.HTTP:
         return new HttpThreadTask(mConstance, mListener, config);

Aria/src/main/java/com/arialyy/aria/core/download/downloader/FtpDirDownloadUtil.java

@@ -0,0 +1,68 @@
+/*
+ * 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.download.DownloadEntity;
+import com.arialyy.aria.core.download.DownloadGroupTaskEntity;
+import com.arialyy.aria.core.download.DownloadTaskEntity;
+import java.util.Set;
+
+/**
+ * Created by Aria.Lao on 2017/7/27.
+ * ftp文件夹下载工具
+ */
+public class FtpDirDownloadUtil extends AbsGroupUtil {
+  public FtpDirDownloadUtil(IDownloadGroupListener listener, DownloadGroupTaskEntity taskEntity) {
+    super(listener, taskEntity);
+  }
+
+  @Override protected void onStart() {
+    super.onStart();
+    if (mTaskEntity.getEntity().getFileSize() > 1) {
+      start();
+    } else {
+      new FtpDirInfoThread(mTaskEntity, new OnFileInfoCallback() {
+        @Override public void onComplete(String url, int code) {
+          if (code >= 200 && code < 300) {
+            mTotalSize = mTaskEntity.getEntity().getFileSize();
+            for (DownloadEntity entity : mTaskEntity.entity.getSubTask()) {
+              mExeMap.put(entity.getDownloadUrl(), createChildDownloadTask(entity));
+            }
+            mActualTaskNum = mTaskEntity.entity.getSubTask().size();
+            start();
+          }
+        }
+
+        @Override public void onFail(String url, String errorMsg) {
+          mListener.onFail();
+        }
+      }).start();
+    }
+  }
+
+  private void start() {
+    int i = 0;
+    Set<String> keys = mExeMap.keySet();
+    for (String key : keys) {
+      DownloadTaskEntity taskEntity = mExeMap.get(key);
+      if (taskEntity != null) {
+        startChildDownload(taskEntity);
+        i++;
+      }
+    }
+    if (i == mExeMap.size()) startRunningFlow();
+  }
+}

Aria/src/main/java/com/arialyy/aria/core/download/downloader/FtpDirInfoThread.java

@@ -15,8 +15,12 @@
  */
 package com.arialyy.aria.core.download.downloader;
 
+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.util.CommonUtil;
+import java.nio.charset.Charset;
+import java.util.ArrayList;
 import org.apache.commons.net.ftp.FTPFile;
 
 /**
@@ -24,6 +28,7 @@ import org.apache.commons.net.ftp.FTPFile;
  * 获取ftp文件夹信息
  */
 class FtpDirInfoThread extends AbsFtpInfoThread<DownloadGroupEntity, DownloadGroupTaskEntity> {
+  private long mSize = 0;
 
   FtpDirInfoThread(DownloadGroupTaskEntity taskEntity, OnFileInfoCallback callback) {
     super(taskEntity, callback);
@@ -31,5 +36,33 @@ class FtpDirInfoThread extends AbsFtpInfoThread<DownloadGroupEntity, DownloadGro
 
   @Override void handleFile(String remotePath, FTPFile ftpFile) {
     super.handleFile(remotePath, ftpFile);
+    mSize += ftpFile.getSize();
+    addEntity(remotePath, ftpFile);
+  }
+
+  @Override protected void onPreComplete() {
+    super.onPreComplete();
+    mEntity.setFileSize(mSize);
+  }
+
+  private void addEntity(String remotePath, FTPFile ftpFile) {
+    DownloadEntity entity = new DownloadEntity();
+    entity.setDownloadUrl("ftp://" + mTaskEntity.serverIp + ":" + mTaskEntity.port + remotePath);
+    entity.setDownloadPath(mEntity.getDirPath() + "/" + remotePath);
+    int lastIndex = remotePath.lastIndexOf("/");
+    String fileName = lastIndex < 0 ? CommonUtil.keyToHashKey(remotePath)
+        : remotePath.substring(lastIndex + 1, remotePath.length());
+    entity.setFileName(new String(fileName.getBytes(), Charset.forName(mTaskEntity.charSet)));
+    entity.setGroupName(mEntity.getGroupName());
+    entity.setGroupChild(true);
+    entity.setFileSize(ftpFile.getSize());
+    entity.insert();
+    if (mEntity.getUrls() == null) {
+      mEntity.setUrls(new ArrayList<String>());
+    }
+    if (mEntity.getSubTask() == null) {
+      mEntity.setSubTasks(new ArrayList<DownloadEntity>());
+    }
+    mEntity.getSubTask().add(entity);
   }
 }

Aria/src/main/java/com/arialyy/aria/core/download/downloader/FtpThreadTask.java

@@ -51,10 +51,13 @@ class FtpThreadTask extends AbsThreadTask {
           + "，结束位置："
           + mConfig.END_LOCATION
           + "】");
-      String[] temp = mEntity.getDownloadUrl().split("/");
+      String url = mEntity.getDownloadUrl();
-      String[] pp = temp[2].split(":");
+      String[] pp = url.split("/")[2].split(":");
+      String serverIp = pp[0];
+      int port = Integer.parseInt(pp[1]);
+      String remotePath = url.substring(url.indexOf(pp[1]) + pp[1].length(), url.length());
       client = new FTPClient();
-      client.connect(pp[0], Integer.parseInt(pp[1]));
+      client.connect(serverIp, port);
       if (!TextUtils.isEmpty(mTaskEntity.account)) {
         client.login(mTaskEntity.userName, mTaskEntity.userPw);
       } else {
@@ -66,12 +69,27 @@ class FtpThreadTask extends AbsThreadTask {
         failDownload(STATE.CURRENT_LOCATION, "无法连接到ftp服务器，错误码为：" + reply, null);
         return;
       }
+      String charSet = "UTF-8";
+      // 开启服务器对UTF-8的支持，如果服务器支持就用UTF-8编码
+      if (!TextUtils.isEmpty(mTaskEntity.charSet) || !FTPReply.isPositiveCompletion(
+          client.sendCommand("OPTS UTF8", "ON"))) {
+        charSet = mTaskEntity.charSet;
+      }
+      client.setControlEncoding(charSet);
       client.setDataTimeout(STATE.READ_TIME_OUT);
       client.enterLocalPassiveMode();
       client.setFileType(FTP.BINARY_FILE_TYPE);
       client.setRestartOffset(mConfig.START_LOCATION);
       client.allocate(mBufSize);
-      is = client.retrieveFileStream(mConfig.remotePath);
+      is = client.retrieveFileStream(
+          new String(remotePath.getBytes(charSet), ConnectionHelp.SERVER_CHARSET));
+      //发送第二次指令时，还需要再做一次判断
+      reply = client.getReplyCode();
+      if (!FTPReply.isPositivePreliminary(reply)) {
+        client.disconnect();
+        failDownload(mChildCurrentLocation, "获取文件信息错误，错误码为：" + reply, null);
+        return;
+      }
       file = new BufferedRandomAccessFile(mConfig.TEMP_FILE, "rwd", mBufSize);
       file.seek(mConfig.START_LOCATION);
       byte[] buffer = new byte[mBufSize];

Aria/src/main/java/com/arialyy/aria/core/download/downloader/SubThreadConfig.java

@@ -22,7 +22,4 @@ class SubThreadConfig {
   String CONFIG_FILE_PATH;
   DownloadTaskEntity DOWNLOAD_TASK_ENTITY;
   boolean IS_SUPPORT_BREAK_POINT = true;
-  FTPClient client;
-  //远程地址
-  String remotePath;
 }

Aria/src/main/java/com/arialyy/aria/core/inf/AbsTaskEntity.java

@@ -26,23 +26,29 @@ import java.util.Map;
  * Created by lyy on 2017/2/23.
  */
 public abstract class AbsTaskEntity<ENTITY extends AbsEntity> extends DbEntity {
+  /**
+   * HTTP下载
+   */
   public static final int HTTP = 0x11;
+  /**
+   * FTP当文件下载
+   */
   public static final int FTP = 0x12;
+  /**
+   * FTP文件夹下载，为避免登录过多，子任务由单线程进行处理
+   */
+  public static final int FTP_DIR = 0x13;
 
   /**
    * Task实体对应的key
    */
   @Primary public String key = "";
 
-  /**
-   * FTP服务器文件或文件夹路径
-   */
-  public String remotePath;
-
   /**
    * 账号和密码
    */
-  @Ignore public String userName, userPw, account;
+  @Ignore public String userName, userPw, account, serverIp;
+  @Ignore public int port;
 
   /**
    * 请求类型

Aria/src/main/java/com/arialyy/aria/core/inf/ITask.java

@@ -33,63 +33,63 @@ public interface ITask<ENTITY extends AbsEntity> {
   /**
    * 唯一标识符，DownloadTask 为下载地址，UploadTask 为文件路径
    */
-  public String getKey();
+  String getKey();
 
   /**
    * 任务是否正在执行
    *
    * @return true，正在执行；
    */
-  public boolean isRunning();
+  boolean isRunning();
 
   /**
    * 获取信息实体
    */
-  public ENTITY getEntity();
+  ENTITY getEntity();
 
-  public void start();
+  void start();
 
-  public void stop();
+  void stop();
 
-  public void cancel();
+  void cancel();
 
   /**
    * 原始byte速度
    */
-  public long getSpeed();
+  long getSpeed();
 
   /**
    * 转换单位后的速度
    */
-  public String getConvertSpeed();
+  String getConvertSpeed();
 
   /**
    * 获取百分比进度
    */
-  public int getPercent();
+  int getPercent();
 
   /**
    * 原始文件byte长度
    */
-  public long getFileSize();
+  long getFileSize();
 
   /**
    * 转换单位后的文件长度
    */
-  public String getConvertFileSize();
+  String getConvertFileSize();
 
   /**
    * 获取当前进度
    */
-  public long getCurrentProgress();
+  long getCurrentProgress();
 
   /**
    * 获取单位转换后的进度
    *
    * @return 返回 3mb
    */
-  public String getConvertCurrentProgress();
+  String getConvertCurrentProgress();
 
-  public void setTargetName(String targetName);
+  void setTargetName(String targetName);
 
 }

app/src/main/java/com/arialyy/simple/download/FtpDownloadActivity.java

@@ -36,7 +36,8 @@ import java.io.File;
  */
 public class FtpDownloadActivity extends BaseActivity<ActivityFtpDownloadBinding> {
   //private final String URL = "ftp://172.18.104.129:21/haha/large.rar";
-  private final String URL = "ftp://172.18.104.129:21/cd.mp3";
+  //private final String URL = "ftp://172.18.104.129:21/haha/large.rar";
+  private final String URL = "ftp://172.18.104.129:21/haha/很大的文件_v100.rar";
 
   @Override protected void init(Bundle savedInstanceState) {
     super.init(savedInstanceState);
@@ -61,7 +62,6 @@ public class FtpDownloadActivity extends BaseActivity<ActivityFtpDownloadBinding
             .loadFtp(URL)
             .login("lao", "123456")
             .setDownloadPath("/mnt/sdcard/")
-            .charSet("gbk")
             .start();
         break;
       case R.id.stop:

app/src/main/java/com/arialyy/simple/download/group/FTPDirDownloadActivity.java

@@ -21,7 +21,9 @@ import android.view.View;
 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;
@@ -41,19 +43,18 @@ public class FTPDirDownloadActivity extends BaseActivity<ActivityDownloadGroupBi
     super.init(savedInstanceState);
     Aria.download(this).register();
     setTitle("FTP文件夹下载");
-    //mUrls = getModule(GroupModule.class).getUrls();
+    DownloadGroupTaskEntity entity = Aria.download(this).getDownloadGroupTask(dir);
-    //DownloadGroupTaskEntity entity = Aria.download(this).getDownloadGroupTask(mUrls);
+    if (entity != null && entity.getEntity() != null) {
-    //if (entity != null && entity.getEntity() != null) {
+      DownloadGroupEntity groupEntity = entity.getEntity();
-    //  DownloadGroupEntity groupEntity = entity.getEntity();
+      mChildList.addData(groupEntity.getSubTask());
-    //  mChildList.addData(groupEntity.getSubTask());
+      getBinding().setFileSize(groupEntity.getConvertFileSize());
-    //  getBinding().setFileSize(groupEntity.getConvertFileSize());
+      if (groupEntity.getFileSize() == 0) {
-    //  if (groupEntity.getFileSize() == 0) {
+        getBinding().setProgress(0);
-    //    getBinding().setProgress(0);
+      } else {
-    //  } else {
+        getBinding().setProgress(groupEntity.isComplete() ? 100
-    //    getBinding().setProgress(groupEntity.isComplete() ? 100
+            : (int) (groupEntity.getCurrentProgress() * 100 / groupEntity.getFileSize()));
-    //        : (int) (groupEntity.getCurrentProgress() * 100 / groupEntity.getFileSize()));
+      }
-    //  }
+    }
-    //}
   }
 
   @Override protected int setLayoutId() {