fix bug https://github.com/AriaLyy/Aria/issues/107

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

@@ -56,17 +56,23 @@ public class DownloadTarget
   }
 
   private void initTask(DownloadEntity entity) {
-    mTaskEntity = DbEntity.findFirst(DownloadTaskEntity.class, "key=? and isGroupTask='false'",
-        entity.getDownloadPath());
+    mTaskEntity =
+        DbEntity.findFirst(DownloadTaskEntity.class, "key=? and isGroupTask='false' and url=?",
+            entity.getDownloadPath(), entity.getUrl());
     if (mTaskEntity == null) {
       mTaskEntity = new DownloadTaskEntity();
+      mTaskEntity.url = entity.getUrl();
       mTaskEntity.key = entity.getDownloadPath();
       mTaskEntity.entity = entity;
       mTaskEntity.save();
-    }
-    if (mTaskEntity.entity == null || TextUtils.isEmpty(mTaskEntity.entity.getUrl())) {
+    } else if (mTaskEntity.entity == null || TextUtils.isEmpty(mTaskEntity.entity.getUrl())) {
       mTaskEntity.entity = entity;
       mTaskEntity.save();
+    } else if (!mTaskEntity.entity.getUrl().equals(entity.getUrl())) {  //处理地址切换而保存路径不变
+      mTaskEntity.entity.deleteData();
+      mTaskEntity.entity = entity;
+      entity.save();
+      mTaskEntity.save();
     }
 
     mEntity = mTaskEntity.entity;

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

@@ -27,6 +27,11 @@ public class DownloadTaskEntity extends AbsTaskEntity<DownloadEntity> {
 
   @OneToOne(table = DownloadEntity.class, key = "downloadPath") public DownloadEntity entity;
 
+  /**
+   * 任务的url
+   */
+  public String url = "";
+
   /**
    * 所属的任务组组名，如果不属于任务组，则为null
    */

Aria/src/main/java/com/arialyy/aria/orm/DBConfig.java

@@ -33,7 +33,7 @@ import java.util.Map;
 class DBConfig {
   static Map<String, Class> mapping = new HashMap<>();
   static String DB_NAME;
-  static int VERSION = 13;
+  static int VERSION = 14;
 
   static {
     if (TextUtils.isEmpty(DB_NAME)) {