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 5bcad9cb..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;
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 8dc620c8..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
@@ -16,50 +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<T extends AbsTaskEntity> implements ICmd {
-  ITaskQueue mQueue;
-  T mTaskEntity;
-  String TAG;
-  String mTargetName;
-  /**
-   * 能否执行命令
-   */
-  boolean canExeCmd = true;
+public abstract class AbsCmd<T extends AbsTaskEntity> implements ICmd{
+  protected ITaskQueue mQueue;
+  protected T mTaskEntity;
+  protected String TAG;
+  protected String mTargetName;
   /**
    * 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 isDownloadCmd = 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;
-    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;
-    }
-  }
-}
\ 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..9f447b49
--- /dev/null
+++ b/Aria/src/main/java/com/arialyy/aria/core/command/AbsCmdFactory.java
@@ -0,0 +1,30 @@
+/*
+ * 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.
+ */
+public abstract class AbsCmdFactory<CMD extends AbsCmd> {
+
+  /**
+   * @param target 创建任务的对象
+   * @param entity 下载实体
+   */
+  public abstract <T extends AbsTaskEntity> 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..f8b2e0ed
--- /dev/null
+++ b/Aria/src/main/java/com/arialyy/aria/core/command/group/AbsGroupCmd.java
@@ -0,0 +1,47 @@
+/*
+ * 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.DownloadTaskEntity;
+import com.arialyy.aria.core.inf.AbsTaskEntity;
+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
+ */
+public abstract class AbsGroupCmd<T extends AbsTaskEntity> extends AbsCmd<T> {
+
+  /**
+   * @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 DownloadTaskEntity) {
+      mQueue = DownloadTaskQueue.getInstance();
+      isDownloadCmd = true;
+    } else if (entity instanceof UploadTaskEntity) {
+      mQueue = UploadTaskQueue.getInstance();
+      isDownloadCmd = false;
+    }
+  }
+}
diff --git a/Aria/src/main/java/com/arialyy/aria/core/command/group/GroupCancelCmd.java b/Aria/src/main/java/com/arialyy/aria/core/command/group/GroupCancelCmd.java
new file mode 100644
index 00000000..5b6e5cf9
--- /dev/null
+++ b/Aria/src/main/java/com/arialyy/aria/core/command/group/GroupCancelCmd.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.
+ * 删除任务组
+ */
+class GroupCancelCmd<T extends AbsTaskEntity> extends AbsGroupCmd<T> {
+  /**
+   * @param targetName 创建任务的对象名
+   */
+  GroupCancelCmd(String targetName, T entity) {
+    super(targetName, entity);
+  }
+
+  @Override public void executeCmd() {
+
+  }
+}
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..786dd6b8
--- /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.
+ */
+public class GroupCmdFactory extends AbsCmdFactory<AbsGroupCmd> {
+  /**
+   * 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 <T extends AbsTaskEntity> AbsGroupCmd<T> 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..7fdb8465
--- /dev/null
+++ b/Aria/src/main/java/com/arialyy/aria/core/command/group/GroupStartCmd.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.
+ * 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<T extends AbsTaskEntity> extends AbsGroupCmd<T> {
+  /**
+   * @param targetName 创建任务的对象名
+   */
+  GroupStartCmd(String targetName, T entity) {
+    super(targetName, entity);
+  }
+
+  @Override public void executeCmd() {
+
+  }
+}
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<T extends AbsTaskEntity> extends AbsGroupCmd<T>{
+  /**
+   * @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..e690524d
--- /dev/null
+++ b/Aria/src/main/java/com/arialyy/aria/core/command/normal/AbsNormalCmd.java
@@ -0,0 +1,56 @@
+/*
+ * 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.DownloadTaskEntity;
+import com.arialyy.aria.core.inf.AbsTaskEntity;
+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<T extends AbsTaskEntity> extends AbsCmd<T> {
+
+  /**
+   * 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;
+    }
+  }
+}
\ 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 90%
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 44cf797f..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
@@ -14,19 +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<T extends AbsTaskEntity> extends AbsCmd<T> {
+class AddCmd<T extends AbsTaskEntity> extends AbsNormalCmd<T> {
 
   AddCmd(String targetName, T entity) {
     super(targetName, entity);
diff --git a/Aria/src/main/java/com/arialyy/aria/core/command/CancelAllCmd.java b/Aria/src/main/java/com/arialyy/aria/core/command/normal/CancelAllCmd.java
similarity index 91%
rename from Aria/src/main/java/com/arialyy/aria/core/command/CancelAllCmd.java
rename to Aria/src/main/java/com/arialyy/aria/core/command/normal/CancelAllCmd.java
index 057c8a2b..f68b3bcc 100644
--- a/Aria/src/main/java/com/arialyy/aria/core/command/CancelAllCmd.java
+++ b/Aria/src/main/java/com/arialyy/aria/core/command/normal/CancelAllCmd.java
@@ -14,23 +14,21 @@
  * 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.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.orm.DbEntity;
 import com.arialyy.aria.util.CommonUtil;
-import java.io.File;
 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<T extends AbsTaskEntity> extends AbsCmd<T> {
+final class CancelAllCmd<T extends AbsTaskEntity> extends AbsNormalCmd<T> {
   /**
    * @param targetName 产生任务的对象名
    */
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 89%
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 74079a93..d12f0cad 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
@@ -14,18 +14,17 @@
  * 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.AbsTask;
-import com.arialyy.aria.core.inf.ITask;
 import com.arialyy.aria.core.inf.AbsTaskEntity;
 
 /**
  * Created by lyy on 2016/9/20.
  * 取消命令
  */
-class CancelCmd<T extends AbsTaskEntity> extends AbsCmd<T> {
+class CancelCmd<T extends AbsTaskEntity> extends AbsNormalCmd<T> {
   CancelCmd(String targetName, T entity) {
     super(targetName, entity);
   }
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 95%
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 a846a41e..a52555a8 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 +13,10 @@
  * 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.AbsTask;
-import com.arialyy.aria.core.inf.ITask;
 import com.arialyy.aria.core.inf.AbsTaskEntity;
 
 /**
@@ -30,7 +29,7 @@ import com.arialyy.aria.core.inf.AbsTaskEntity;
  * 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
  */
-final class HighestPriorityCmd<T extends AbsTaskEntity> extends AbsCmd<T> {
+final class HighestPriorityCmd<T extends AbsTaskEntity> extends AbsNormalCmd<T> {
   /**
    * @param targetName 产生任务的对象名
    */
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 85%
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 e2fdf3e0..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<AbsNormalCmd> {
   /**
    * 创建任务
    */
@@ -60,16 +61,16 @@ public class CmdFactory {
    * 删除所有任务，
    */
   public static final int TASK_CANCEL_ALL = 0x131;
-  private static volatile CmdFactory INSTANCE = null;
+  private static volatile NormalCmdFactory 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;
@@ -81,7 +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 <T extends AbsTaskEntity> AbsCmd<T> createCmd(String target, T entity, int type) {
+  public <T extends AbsTaskEntity> AbsNormalCmd<T> createCmd(String target, T entity, int type) {
     switch (type) {
       case TASK_CREATE:
         return new AddCmd<>(target, entity);
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 91%
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 693b9c80..58b26bdc 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
@@ -1,4 +1,4 @@
-package com.arialyy.aria.core.command;
+package com.arialyy.aria.core.command.normal;
 
 import android.util.Log;
 import com.arialyy.aria.core.download.DownloadEntity;
@@ -6,7 +6,6 @@ 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;
 
@@ -16,7 +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<T extends AbsTaskEntity> extends AbsCmd<T> {
+final class ResumeAllCmd<T extends AbsTaskEntity> extends AbsNormalCmd<T> {
   /**
    * @param targetName 产生任务的对象名
    */
diff --git a/Aria/src/main/java/com/arialyy/aria/core/command/StartCmd.java b/Aria/src/main/java/com/arialyy/aria/core/command/normal/StartCmd.java
similarity index 94%
rename from Aria/src/main/java/com/arialyy/aria/core/command/StartCmd.java
rename to Aria/src/main/java/com/arialyy/aria/core/command/normal/StartCmd.java
index 30906615..2b042a27 100644
--- a/Aria/src/main/java/com/arialyy/aria/core/command/StartCmd.java
+++ b/Aria/src/main/java/com/arialyy/aria/core/command/normal/StartCmd.java
@@ -14,14 +14,13 @@
  * 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.AriaManager;
 import com.arialyy.aria.core.QueueMod;
 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;
 
 /**
@@ -29,7 +28,7 @@ import com.arialyy.aria.core.inf.AbsTaskEntity;
  * 开始命令
  * 队列模型{@link QueueMod#NOW}、{@link QueueMod#WAIT}
  */
-class StartCmd<T extends AbsTaskEntity> extends AbsCmd<T> {
+class StartCmd<T extends AbsTaskEntity> extends AbsNormalCmd<T> {
 
   StartCmd(String targetName, T entity) {
     super(targetName, entity);
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<T extends AbsTaskEntity> extends AbsCmd<T> {
+final class StopAllCmd<T extends AbsTaskEntity> extends AbsNormalCmd<T> {
   /**
    * @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 91%
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 dc04609b..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
@@ -14,20 +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<T extends AbsTaskEntity> extends AbsCmd<T> {
+class StopCmd<T extends AbsTaskEntity> extends AbsNormalCmd<T> {
 
   StopCmd(String targetName, T entity) {
     super(targetName, entity);
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..e1102037 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
@@ -18,7 +18,7 @@ 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.core.inf.AbsNormalEntity;
 import com.arialyy.aria.orm.Ignore;
 
 /**
@@ -27,7 +27,7 @@ import com.arialyy.aria.orm.Ignore;
  * ！！！ 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
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..e556c424
--- /dev/null
+++ b/Aria/src/main/java/com/arialyy/aria/core/download/DownloadGroupTarget.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.core.download;
+
+import com.arialyy.aria.core.inf.AbsGroupTarget;
+import com.arialyy.aria.core.inf.ITarget;
+import java.util.List;
+
+/**
+ * Created by AriaL on 2017/6/29.
+ */
+public class DownloadGroupTarget extends AbsGroupTarget<DownloadGroupTarget, DownloadTaskEntity> {
+
+  /**
+   * 设置保存路径组
+   */
+  public DownloadGroupTarget setDownloadPaths(List<String> paths) {
+
+    return this;
+  }
+
+  @Override public int getPercent() {
+    return 0;
+  }
+}
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 32a255d3..045902dd 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
@@ -20,15 +20,12 @@ import com.arialyy.aria.core.AriaManager;
 import com.arialyy.aria.core.inf.AbsReceiver;
 import com.arialyy.aria.core.inf.IEntity;
 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.DownloadSchedulers;
 import com.arialyy.aria.core.scheduler.ISchedulerListener;
-import com.arialyy.aria.orm.DbEntity;
 import com.arialyy.aria.util.CheckUtil;
 import com.arialyy.aria.util.CommonUtil;
 import java.io.File;
-import java.util.ArrayList;
 import java.util.List;
 import java.util.Set;
 
@@ -142,8 +139,8 @@ public class DownloadReceiver extends AbsReceiver<DownloadEntity> {
    */
   @Override public void stopAllTask() {
     AriaManager.getInstance(AriaManager.APP)
-        .setCmd(CmdFactory.getInstance()
-            .createCmd(targetName, new DownloadTaskEntity(), CmdFactory.TASK_STOP_ALL))
+        .setCmd(NormalCmdFactory.getInstance()
+            .createCmd(targetName, new DownloadTaskEntity(), NormalCmdFactory.TASK_STOP_ALL))
         .exe();
   }
 
@@ -154,8 +151,8 @@ public class DownloadReceiver extends AbsReceiver<DownloadEntity> {
    */
   public void resumeAllTask() {
     AriaManager.getInstance(AriaManager.APP)
-        .setCmd(CmdFactory.getInstance()
-            .createCmd(targetName, new DownloadTaskEntity(), CmdFactory.TASK_RESUME_ALL))
+        .setCmd(NormalCmdFactory.getInstance()
+            .createCmd(targetName, new DownloadTaskEntity(), NormalCmdFactory.TASK_RESUME_ALL))
         .exe();
   }
 
@@ -169,7 +166,7 @@ public class DownloadReceiver extends AbsReceiver<DownloadEntity> {
     final AriaManager ariaManager = AriaManager.getInstance(AriaManager.APP);
     AriaManager.getInstance(AriaManager.APP)
         .setCmd(
-            CommonUtil.createCmd(targetName, new DownloadTaskEntity(), CmdFactory.TASK_CANCEL_ALL))
+            CommonUtil.createCmd(targetName, new DownloadTaskEntity(), NormalCmdFactory.TASK_CANCEL_ALL))
         .exe();
 
     Set<String> keys = ariaManager.getReceiver().keySet();
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..914c1ff7 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 +17,21 @@ 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.queue.DownloadTaskQueue;
 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<DownloadEntity, DownloadTaskEntity> {
+public class DownloadTarget extends
+    AbsNormalTarget<DownloadTarget, DownloadEntity, DownloadTaskEntity> {
 
   DownloadTarget(DownloadEntity entity, String targetName) {
-    this.entity = entity;
-    this.targetName = targetName;
-    taskEntity = new DownloadTaskEntity(entity);
-  }
-
-  @Override public void pause() {
-    super.pause();
-  }
-
-  @Override public void resume() {
-    super.resume();
+    this.mEntity = entity;
+    this.mTargetName = targetName;
+    mTaskEntity = new DownloadTaskEntity(entity);
   }
 
   /**
@@ -65,54 +55,14 @@ public class DownloadTarget extends AbsTarget<DownloadEntity, DownloadTaskEntity
     return this;
   }
 
-  @Override public int getPercent() {
-    if (entity == null) {
-      Log.e("DownloadTarget", "下载管理器中没有该任务");
-      return 0;
-    }
-    if (entity.getFileSize() != 0) {
-      return (int) (entity.getCurrentProgress() * 100 / entity.getFileSize());
-    }
-    return super.getPercent();
-  }
-
-  /**
-   * 给url请求添加头部
-   *
-   * @param key 头部key
-   * @param header 头部value
-   */
-  public DownloadTarget 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 DownloadTarget addHeaders(Map<String, String> 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;
+    return DownloadTaskQueue.getInstance().getTask(mEntity.getDownloadUrl()) != null;
   }
 
-  /**
-   * 设置请求类型
-   *
-   * @param requestEnum {@link RequestEnum}
-   */
-  public DownloadTarget setRequestMode(RequestEnum requestEnum) {
-    super._setRequestMode(requestEnum);
-    return this;
-  }
 
   /**
    * 设置文件存储路径
@@ -122,8 +72,8 @@ public class DownloadTarget extends AbsTarget<DownloadEntity, DownloadTaskEntity
       throw new IllegalArgumentException("文件保持路径不能为null");
     }
     File file = new File(downloadPath);
-    entity.setDownloadPath(downloadPath);
-    entity.setFileName(file.getName());
+    mEntity.setDownloadPath(downloadPath);
+    mEntity.setFileName(file.getName());
     return this;
   }
 
@@ -136,7 +86,7 @@ public class DownloadTarget extends AbsTarget<DownloadEntity, DownloadTaskEntity
     if (TextUtils.isEmpty(downloadName)) {
       throw new IllegalArgumentException("文件名不能为null");
     }
-    entity.setFileName(downloadName);
+    mEntity.setFileName(downloadName);
     return this;
   }
 
@@ -147,19 +97,19 @@ public class DownloadTarget extends AbsTarget<DownloadEntity, DownloadTaskEntity
     if (TextUtils.isEmpty(fileName)) {
       throw new IllegalArgumentException("文件名不能为null");
     }
-    entity.setFileName(fileName);
+    mEntity.setFileName(fileName);
     return this;
   }
 
   private DownloadEntity getDownloadEntity() {
-    return entity;
+    return mEntity;
   }
 
   /**
    * 是否在下载
    */
   public boolean isDownloading() {
-    DownloadTask task = DownloadTaskQueue.getInstance().getTask(entity);
+    DownloadTask task = DownloadTaskQueue.getInstance().getTask(mEntity);
     return task != null && task.isRunning();
   }
 }
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..c50258f7
--- /dev/null
+++ b/Aria/src/main/java/com/arialyy/aria/core/inf/AbsGroupEntity.java
@@ -0,0 +1,140 @@
+/*
+ * 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 AbsGroupEntity<CHILD_ENTITY extends AbsNormalEntity> extends DbEntity implements IEntity, Parcelable {
+  /**
+   * 速度
+   */
+  @Ignore private long speed = 0;
+  /**
+   * 单位转换后的速度
+   */
+  @Ignore private String convertSpeed = "0b/s";
+
+  /**
+   * 扩展字段
+   */
+  private String str = "";
+  /**
+   * 文件大小
+   */
+  private long fileSize = 1;
+  private int state = STATE_WAIT;
+  /**
+   * 当前下载进度
+   */
+  private long currentProgress = 0;
+  /**
+   * 完成时间
+   */
+  private long completeTime;
+  /**
+   * 文件名
+   */
+  private String grooupName = "";
+
+  public long getSpeed() {
+    return speed;
+  }
+
+  public void setSpeed(long speed) {
+    this.speed = speed;
+  }
+
+  public String getConvertSpeed() {
+    return convertSpeed;
+  }
+
+  public void setConvertSpeed(String convertSpeed) {
+    this.convertSpeed = convertSpeed;
+  }
+
+  public String getStr() {
+    return str;
+  }
+
+  public void setStr(String str) {
+    this.str = str;
+  }
+
+  public long getFileSize() {
+    return fileSize;
+  }
+
+  public void setFileSize(long fileSize) {
+    this.fileSize = fileSize;
+  }
+
+  public int getState() {
+    return state;
+  }
+
+  public void setState(int state) {
+    this.state = state;
+  }
+
+  public long getCurrentProgress() {
+    return currentProgress;
+  }
+
+  public void setCurrentProgress(long currentProgress) {
+    this.currentProgress = currentProgress;
+  }
+
+  public long getCompleteTime() {
+    return completeTime;
+  }
+
+  public void setCompleteTime(long completeTime) {
+    this.completeTime = completeTime;
+  }
+
+  public AbsGroupEntity() {
+  }
+
+  @Override public int describeContents() {
+    return 0;
+  }
+
+  @Override public void writeToParcel(Parcel dest, int flags) {
+    dest.writeLong(this.speed);
+    dest.writeString(this.convertSpeed);
+    dest.writeString(this.str);
+    dest.writeLong(this.fileSize);
+    dest.writeInt(this.state);
+    dest.writeLong(this.currentProgress);
+    dest.writeLong(this.completeTime);
+  }
+
+  protected AbsGroupEntity(Parcel in) {
+    this.speed = in.readLong();
+    this.convertSpeed = in.readString();
+    this.str = in.readString();
+    this.fileSize = in.readLong();
+    this.state = in.readInt();
+    this.currentProgress = in.readLong();
+    this.completeTime = in.readLong();
+  }
+}
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..34834da5
--- /dev/null
+++ b/Aria/src/main/java/com/arialyy/aria/core/inf/AbsGroupTarget.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.inf;
+
+import android.support.annotation.NonNull;
+import com.arialyy.aria.core.RequestEnum;
+import java.util.Map;
+import java.util.Set;
+
+/**
+ * Created by AriaL on 2017/6/29.
+ * 任务组超类
+ */
+public abstract class AbsGroupTarget<TARGET extends AbsGroupTarget, TASK_ENTITY extends AbsTaskEntity>
+    implements ITarget<TARGET> {
+
+  protected TASK_ENTITY mTaskEntity;
+
+  @Override public void resume() {
+
+  }
+
+  @Override public void start() {
+
+  }
+
+  @Override public void stop() {
+
+  }
+
+  @Override public void cancel() {
+
+  }
+
+  @Override public long getSize() {
+    return 0;
+  }
+
+  @Override public String getConvertSize() {
+    return null;
+  }
+
+  @Override public long getCurrentProgress() {
+    return 0;
+  }
+
+  @Override public TARGET addHeader(@NonNull String key, @NonNull String header) {
+    mTaskEntity.headers.put(key, header);
+    return (TARGET) this;
+  }
+
+  @Override public TARGET addHeaders(Map<String, String> headers) {
+    if (headers != null && headers.size() > 0) {
+      Set<String> keys = headers.keySet();
+      for (String key : keys) {
+        mTaskEntity.headers.put(key, headers.get(key));
+      }
+    }
+    return (TARGET) this;
+  }
+
+  @Override public TARGET setRequestMode(RequestEnum requestEnum) {
+    mTaskEntity.requestEnum = requestEnum;
+    return (TARGET) this;
+  }
+}
diff --git a/Aria/src/main/java/com/arialyy/aria/core/inf/AbsEntity.java b/Aria/src/main/java/com/arialyy/aria/core/inf/AbsNormalEntity.java
similarity index 95%
rename from Aria/src/main/java/com/arialyy/aria/core/inf/AbsEntity.java
rename to Aria/src/main/java/com/arialyy/aria/core/inf/AbsNormalEntity.java
index e6b4d2b9..8411c960 100644
--- a/Aria/src/main/java/com/arialyy/aria/core/inf/AbsEntity.java
+++ b/Aria/src/main/java/com/arialyy/aria/core/inf/AbsNormalEntity.java
@@ -23,7 +23,7 @@ import com.arialyy.aria.orm.Ignore;
 /**
  * Created by AriaL on 2017/6/3.
  */
-public abstract class AbsEntity extends DbEntity implements IEntity, Parcelable {
+public abstract class AbsNormalEntity extends DbEntity implements IEntity, Parcelable {
   /**
    * 速度
    */
@@ -130,7 +130,7 @@ public abstract class AbsEntity extends DbEntity implements IEntity, Parcelable
     this.fileName = fileName;
   }
 
-  public AbsEntity() {
+  public AbsNormalEntity() {
   }
 
   @Override public int describeContents() {
@@ -149,7 +149,7 @@ public abstract class AbsEntity extends DbEntity implements IEntity, Parcelable
     dest.writeString(this.fileName);
   }
 
-  protected AbsEntity(Parcel in) {
+  protected AbsNormalEntity(Parcel in) {
     this.speed = in.readLong();
     this.convertSpeed = in.readString();
     this.failNum = in.readInt();
diff --git a/Aria/src/main/java/com/arialyy/aria/core/inf/AbsTarget.java b/Aria/src/main/java/com/arialyy/aria/core/inf/AbsNormalTarget.java
similarity index 61%
rename from Aria/src/main/java/com/arialyy/aria/core/inf/AbsTarget.java
rename to Aria/src/main/java/com/arialyy/aria/core/inf/AbsNormalTarget.java
index c3dcbb48..c281b038 100644
--- a/Aria/src/main/java/com/arialyy/aria/core/inf/AbsTarget.java
+++ b/Aria/src/main/java/com/arialyy/aria/core/inf/AbsNormalTarget.java
@@ -20,31 +20,29 @@ 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.command.normal.NormalCmdFactory;
 import com.arialyy.aria.core.download.DownloadEntity;
 import com.arialyy.aria.core.upload.UploadEntity;
 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.
  */
-public abstract class AbsTarget<ENTITY extends AbsEntity, TASK_ENTITY extends AbsTaskEntity> {
-  protected ENTITY entity;
-  protected TASK_ENTITY taskEntity;
-  protected String targetName;
+public abstract class AbsNormalTarget<TARGET extends AbsNormalTarget, ENTITY extends AbsNormalEntity, TASK_ENTITY extends AbsTaskEntity>
+    implements ITarget<TARGET> {
+  protected ENTITY mEntity;
+  protected TASK_ENTITY mTaskEntity;
+  protected String mTargetName;
 
   /**
    * 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);
+  public AbsNormalTarget setExtendField(String str) {
+    mEntity.setStr(str);
     return this;
   }
 
@@ -53,7 +51,7 @@ public abstract class AbsTarget<ENTITY extends AbsEntity, TASK_ENTITY extends Ab
    * 设置扩展字段{@link #setExtendField(String)}
    */
   public String getExtendField() {
-    return entity.getStr();
+    return mEntity.getStr();
   }
 
   /**
@@ -62,7 +60,7 @@ public abstract class AbsTarget<ENTITY extends AbsEntity, TASK_ENTITY extends Ab
    * @return {@link IEntity}
    */
   public int getTaskState() {
-    return entity.getState();
+    return mEntity.getState();
   }
 
   /**
@@ -76,7 +74,7 @@ public abstract class AbsTarget<ENTITY extends AbsEntity, TASK_ENTITY extends Ab
    */
   protected void setHighestPriority() {
     AriaManager.getInstance(AriaManager.APP)
-        .setCmd(CommonUtil.createCmd(targetName, taskEntity, CmdFactory.TASK_HIGHEST_PRIORITY))
+        .setCmd(CommonUtil.createCmd(mTargetName, mTaskEntity, NormalCmdFactory.TASK_HIGHEST_PRIORITY))
         .exe();
   }
 
@@ -85,17 +83,33 @@ public abstract class AbsTarget<ENTITY extends AbsEntity, TASK_ENTITY extends Ab
    */
   protected void _setRedirectUrlKey(String redirectUrlKey) {
     if (TextUtils.isEmpty(redirectUrlKey)) {
-      Log.w("AbsTarget", "重定向后，新url的key不能为null");
+      Log.w("AbsNormalTarget", "重定向后，新url的key不能为null");
       return;
     }
-    taskEntity.redirectUrlKey = redirectUrlKey;
+    mTaskEntity.redirectUrlKey = redirectUrlKey;
+  }
+
+  /**
+   * 获取任务进度百分比
+   *
+   * @return 返回任务进度
+   */
+  @Override public int getPercent() {
+    if (mEntity == null) {
+      Log.e("AbsNormalTarget", "下载管理器中没有该任务");
+      return 0;
+    }
+    if (mEntity.getFileSize() != 0) {
+      return (int) (mEntity.getCurrentProgress() * 100 / mEntity.getFileSize());
+    }
+    return 0;
   }
 
   /**
    * 删除记录
    */
   public void removeRecord() {
-    entity.deleteData();
+    mEntity.deleteData();
   }
 
   /**
@@ -104,30 +118,38 @@ public abstract class AbsTarget<ENTITY extends AbsEntity, TASK_ENTITY extends Ab
    * @return 文件大小
    */
   public long getFileSize() {
-    if (entity instanceof DownloadEntity) {
-      DownloadEntity entity = (DownloadEntity) this.entity;
+    return getSize();
+  }
+
+  @Override public long getSize() {
+    if (mEntity instanceof DownloadEntity) {
+      DownloadEntity entity = (DownloadEntity) this.mEntity;
       return entity.getFileSize();
-    } else if (entity instanceof UploadEntity) {
-      UploadEntity entity = (UploadEntity) this.entity;
+    } else if (mEntity instanceof UploadEntity) {
+      UploadEntity entity = (UploadEntity) this.mEntity;
       return entity.getFileSize();
     }
     return 0;
   }
 
+  @Override public String getConvertSize() {
+    if (mEntity instanceof DownloadEntity) {
+      DownloadEntity entity = (DownloadEntity) this.mEntity;
+      return CommonUtil.formatFileSize(entity.getFileSize());
+    } else if (mEntity instanceof UploadEntity) {
+      UploadEntity entity = (UploadEntity) this.mEntity;
+      return CommonUtil.formatFileSize(entity.getFileSize());
+    }
+    return "0b";
+  }
+
   /**
    * 获取单位转换后的文件大小
    *
    * @return 文件大小{@code xxx mb}
    */
   public String getConvertFileSize() {
-    if (entity instanceof DownloadEntity) {
-      DownloadEntity entity = (DownloadEntity) this.entity;
-      return CommonUtil.formatFileSize(entity.getFileSize());
-    } else if (entity instanceof UploadEntity) {
-      UploadEntity entity = (UploadEntity) this.entity;
-      return CommonUtil.formatFileSize(entity.getFileSize());
-    }
-    return "0b";
+    return getConvertSize();
   }
 
   /**
@@ -137,26 +159,17 @@ public abstract class AbsTarget<ENTITY extends AbsEntity, TASK_ENTITY extends Ab
     return false;
   }
 
-  /**
-   * 获取任务进度百分比
-   *
-   * @return 返回任务进度
-   */
-  protected int getPercent() {
-    return 0;
-  }
-
   /**
    * 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() {
-    if (entity instanceof DownloadEntity) {
-      DownloadEntity entity = (DownloadEntity) this.entity;
+    if (mEntity instanceof DownloadEntity) {
+      DownloadEntity entity = (DownloadEntity) this.mEntity;
       return entity.getCurrentProgress();
-    } else if (entity instanceof UploadEntity) {
-      UploadEntity entity = (UploadEntity) this.entity;
+    } else if (mEntity instanceof UploadEntity) {
+      UploadEntity entity = (UploadEntity) this.mEntity;
       return entity.getCurrentProgress();
     }
     return -1;
@@ -168,20 +181,22 @@ public abstract class AbsTarget<ENTITY extends AbsEntity, TASK_ENTITY extends Ab
    * @param key 头部key
    * @param header 头部value
    */
-  protected void _addHeader(@NonNull String key, @NonNull String header) {
-    taskEntity.headers.put(key, header);
+  public TARGET addHeader(@NonNull String key, @NonNull String header) {
+    mTaskEntity.headers.put(key, header);
+    return (TARGET) this;
   }
 
   /**
    * 给url请求添加头部
    */
-  protected void _addHeaders(Map<String, String> headers) {
+  public TARGET addHeaders(Map<String, String> headers) {
     if (headers != null && headers.size() > 0) {
       Set<String> keys = headers.keySet();
       for (String key : keys) {
-        taskEntity.headers.put(key, headers.get(key));
+        mTaskEntity.headers.put(key, headers.get(key));
       }
     }
+    return (TARGET) this;
   }
 
   /**
@@ -189,56 +204,60 @@ public abstract class AbsTarget<ENTITY extends AbsEntity, TASK_ENTITY extends Ab
    *
    * @param requestEnum {@link RequestEnum}
    */
-  protected void _setRequestMode(RequestEnum requestEnum) {
-    taskEntity.requestEnum = requestEnum;
+  public TARGET setRequestMode(RequestEnum requestEnum) {
+    mTaskEntity.requestEnum = requestEnum;
+    return (TARGET) this;
   }
 
   /**
    * 添加任务
    */
+
   public void add() {
     AriaManager.getInstance(AriaManager.APP)
-        .setCmd(CommonUtil.createCmd(targetName, taskEntity, CmdFactory.TASK_CREATE))
+        .setCmd(CommonUtil.createCmd(mTargetName, mTaskEntity, NormalCmdFactory.TASK_CREATE))
         .exe();
   }
 
   /**
    * 开始下载
    */
-  public void start() {
-    //List<AbsCmd> cmds = new ArrayList<>();
-    //cmds.add(CommonUtil.createCmd(targetName, taskEntity, CmdFactory.TASK_CREATE));
-    //cmds.add(CommonUtil.createCmd(targetName, taskEntity, CmdFactory.TASK_START));
-    //cmds.clear();
+  @Override public void start() {
     AriaManager.getInstance(AriaManager.APP)
-        .setCmd(CommonUtil.createCmd(targetName, taskEntity, CmdFactory.TASK_START))
+        .setCmd(CommonUtil.createCmd(mTargetName, mTaskEntity, NormalCmdFactory.TASK_START))
         .exe();
   }
 
   /**
    * 停止下载
+   *
+   * @see #stop()
    */
-  protected void pause() {
+  @Deprecated protected 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();
   }
 
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
index 4e67339e..e19d6945 100644
--- a/Aria/src/main/java/com/arialyy/aria/core/inf/AbsReceiver.java
+++ b/Aria/src/main/java/com/arialyy/aria/core/inf/AbsReceiver.java
@@ -20,7 +20,7 @@ package com.arialyy.aria.core.inf;
  * Created by AriaL on 2017/6/27.
  */
 
-public abstract class AbsReceiver<ENTITY extends AbsEntity> implements IReceiver<ENTITY>{
+public abstract class AbsReceiver<ENTITY extends AbsNormalEntity> implements IReceiver<ENTITY>{
   public String targetName;
   public Object obj;
 
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 5521a882..3be9ea52 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
@@ -21,7 +21,7 @@ import com.arialyy.aria.util.CommonUtil;
 /**
  * Created by lyy on 2017/6/3.
  */
-public abstract class AbsTask<TASK_ENTITY extends AbsTaskEntity, ENTITY extends AbsEntity>
+public abstract class AbsTask<TASK_ENTITY extends AbsTaskEntity, ENTITY extends AbsNormalEntity>
     implements ITask<ENTITY> {
 
   protected ENTITY mEntity;
diff --git a/Aria/src/main/java/com/arialyy/aria/core/inf/AbsTaskEntity.java b/Aria/src/main/java/com/arialyy/aria/core/inf/AbsTaskEntity.java
index fe63cd37..8bbb8137 100644
--- a/Aria/src/main/java/com/arialyy/aria/core/inf/AbsTaskEntity.java
+++ b/Aria/src/main/java/com/arialyy/aria/core/inf/AbsTaskEntity.java
@@ -44,5 +44,5 @@ public abstract class AbsTaskEntity {
    */
   public boolean removeFile = false;
 
-  public abstract AbsEntity getEntity();
+  public abstract AbsNormalEntity getEntity();
 }
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<TARGET extends 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<String, String> 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 27b4af9b..5535ad92 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
@@ -19,7 +19,11 @@ package com.arialyy.aria.core.inf;
  * Created by lyy on 2017/2/13.
  */
 
-public interface ITask<ENTITY extends AbsEntity> {
+public interface ITask<ENTITY extends AbsNormalEntity> {
+
+  /**
+   * 获取
+   */
 
   /**
    * 暂停任务，并让任务处于等待状态
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 0bd83e6e..c2b1d239 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
@@ -17,11 +17,9 @@
 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.inf.AbsEntity;
+import com.arialyy.aria.core.inf.AbsNormalEntity;
 import com.arialyy.aria.core.inf.AbsTask;
-import com.arialyy.aria.core.inf.ITask;
 import com.arialyy.aria.core.inf.AbsTaskEntity;
 import com.arialyy.aria.core.queue.pool.CachePool;
 import com.arialyy.aria.core.queue.pool.ExecutePool;
@@ -31,7 +29,7 @@ import java.util.Set;
  * Created by lyy on 2017/2/23.
  * 任务队列
  */
-abstract class AbsTaskQueue<TASK extends AbsTask, TASK_ENTITY extends AbsTaskEntity, ENTITY extends AbsEntity>
+abstract class AbsTaskQueue<TASK extends AbsTask, TASK_ENTITY extends AbsTaskEntity, ENTITY extends AbsNormalEntity>
     implements ITaskQueue<TASK, TASK_ENTITY, ENTITY> {
   private final String TAG = "AbsTaskQueue";
   CachePool<TASK> mCachePool = new CachePool<>();
diff --git a/Aria/src/main/java/com/arialyy/aria/core/queue/DownloadGroupTaskQueue.java b/Aria/src/main/java/com/arialyy/aria/core/queue/DownloadGroupTaskQueue.java
new file mode 100644
index 00000000..4516ae3b
--- /dev/null
+++ b/Aria/src/main/java/com/arialyy/aria/core/queue/DownloadGroupTaskQueue.java
@@ -0,0 +1,24 @@
+/*
+ * 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;
+
+/**
+ * Created by AriaL on 2017/6/29.
+ * 任务组下载队列
+ */
+public class DownloadGroupTaskQueue {
+}
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 1bafa3e7..4931e673 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
@@ -20,11 +20,10 @@ import android.os.Message;
 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.AbsNormalEntity;
 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;
@@ -35,7 +34,7 @@ import java.util.concurrent.ConcurrentHashMap;
 /**
  * Created by lyy on 2017/6/4.
  */
-public abstract class AbsSchedulers<TASK_ENTITY extends AbsTaskEntity, ENTITY extends AbsEntity, TASK extends AbsTask<TASK_ENTITY, ENTITY>, QUEUE extends ITaskQueue<TASK, TASK_ENTITY, ENTITY>>
+public abstract class AbsSchedulers<TASK_ENTITY extends AbsTaskEntity, ENTITY extends AbsNormalEntity, TASK extends AbsTask<TASK_ENTITY, ENTITY>, QUEUE extends ITaskQueue<TASK, TASK_ENTITY, ENTITY>>
     implements ISchedulers<TASK> {
   private static final String TAG = "AbsSchedulers";
 
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..e9105255 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
@@ -17,14 +17,14 @@ 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;
 
 /**
  * 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 {
 
   private String filePath;  //文件路径
   private boolean isComplete = false;
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 47ee5c6c..4430fb56 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
@@ -17,14 +17,12 @@ 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.command.normal.AbsNormalCmd;
+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.IEntity;
 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;
@@ -84,11 +82,11 @@ public class UploadReceiver extends AbsReceiver<UploadEntity> {
 
   @Override public void stopAllTask() {
     List<UploadEntity> allEntity = DbEntity.findAllData(UploadEntity.class);
-    List<AbsCmd> stopCmds = new ArrayList<>();
+    List<AbsNormalCmd> stopCmds = new ArrayList<>();
     for (UploadEntity entity : allEntity) {
       if (entity.getState() == IEntity.STATE_RUNNING) {
         stopCmds.add(
-            CommonUtil.createCmd(targetName, new UploadTaskEntity(entity), CmdFactory.TASK_STOP));
+            CommonUtil.createCmd(targetName, new UploadTaskEntity(entity), NormalCmdFactory.TASK_STOP));
       }
     }
     AriaManager.getInstance(AriaManager.APP).setCmds(stopCmds).exe();
@@ -105,7 +103,7 @@ public class UploadReceiver extends AbsReceiver<UploadEntity> {
 
     AriaManager.getInstance(AriaManager.APP)
         .setCmd(
-            CommonUtil.createCmd(targetName, new DownloadTaskEntity(), CmdFactory.TASK_CANCEL_ALL))
+            CommonUtil.createCmd(targetName, new DownloadTaskEntity(), NormalCmdFactory.TASK_CANCEL_ALL))
         .exe();
 
     Set<String> keys = am.getReceiver().keySet();
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..cdbde0e1 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 +16,25 @@
 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;
 
 /**
  * Created by lyy on 2017/2/28.
  */
-public class UploadTarget extends AbsTarget<UploadEntity, UploadTaskEntity> {
+public class UploadTarget extends AbsNormalTarget<UploadTarget, UploadEntity, UploadTaskEntity> {
 
   UploadTarget(UploadEntity entity, String targetName) {
-    this.entity = entity;
-    this.targetName = targetName;
-    taskEntity = new UploadTaskEntity(entity);
+    this.mEntity = entity;
+    this.mTargetName = targetName;
+    mTaskEntity = new UploadTaskEntity(entity);
   }
 
   /**
    * 设置userAgent
    */
   public UploadTarget setUserAngent(@NonNull String userAgent) {
-    taskEntity.userAgent = userAgent;
+    mTaskEntity.userAgent = userAgent;
     return this;
   }
 
@@ -47,7 +44,7 @@ public class UploadTarget extends AbsTarget<UploadEntity, UploadTaskEntity> {
    * @param uploadUrl 上传路径
    */
   public UploadTarget setUploadUrl(@NonNull String uploadUrl) {
-    taskEntity.uploadUrl = uploadUrl;
+    mTaskEntity.uploadUrl = uploadUrl;
     return this;
   }
 
@@ -57,7 +54,7 @@ public class UploadTarget extends AbsTarget<UploadEntity, UploadTaskEntity> {
    * @param attachment 附件key
    */
   public UploadTarget setAttachment(@NonNull String attachment) {
-    taskEntity.attachment = attachment;
+    mTaskEntity.attachment = attachment;
     return this;
   }
 
@@ -65,7 +62,7 @@ public class UploadTarget extends AbsTarget<UploadEntity, UploadTaskEntity> {
    * 设置文件名
    */
   public UploadTarget setFileName(String fileName) {
-    entity.setFileName(fileName);
+    mEntity.setFileName(fileName);
     return this;
   }
 
@@ -75,28 +72,7 @@ public class UploadTarget extends AbsTarget<UploadEntity, UploadTaskEntity> {
    * @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<String, String> headers) {
-    super._addHeaders(headers);
+    mTaskEntity.contentType = contentType;
     return this;
   }
 
@@ -104,28 +80,16 @@ public class UploadTarget extends AbsTarget<UploadEntity, UploadTaskEntity> {
    * 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;
+    return UploadTaskQueue.getInstance().getTask(mEntity.getFilePath()) != null;
   }
 
-  private UploadEntity getDownloadEntity() {
-    return entity;
-  }
 
   /**
    * 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/util/CommonUtil.java b/Aria/src/main/java/com/arialyy/aria/util/CommonUtil.java
index 2b42354a..d9407c60 100644
--- a/Aria/src/main/java/com/arialyy/aria/util/CommonUtil.java
+++ b/Aria/src/main/java/com/arialyy/aria/util/CommonUtil.java
@@ -23,8 +23,8 @@ import android.net.Uri;
 import android.text.TextUtils;
 import android.util.Log;
 import com.arialyy.aria.core.AriaManager;
-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.command.normal.AbsNormalCmd;
 import com.arialyy.aria.core.download.DownloadEntity;
 import com.arialyy.aria.core.inf.AbsTaskEntity;
 import com.arialyy.aria.core.upload.UploadEntity;
@@ -225,8 +225,8 @@ public class CommonUtil {
     }
   }
 
-  public static <T extends AbsTaskEntity> AbsCmd createCmd(String target, T entity, int cmd) {
-    return CmdFactory.getInstance().createCmd(target, entity, cmd);
+  public static <T extends AbsTaskEntity> AbsNormalCmd createCmd(String target, T entity, int cmd) {
+    return NormalCmdFactory.getInstance().createCmd(target, entity, cmd);
   }
 
   /**