diff --git a/Aria/build.gradle b/Aria/build.gradle
index 11e56f9b..4f351abc 100644
--- a/Aria/build.gradle
+++ b/Aria/build.gradle
@@ -7,8 +7,8 @@ android {
   defaultConfig {
     minSdkVersion 9
     targetSdkVersion 23
-    versionCode 311
-    versionName "3.1.1"
+    versionCode 312
+    versionName "3.1.2"
   }
   buildTypes {
     release {
diff --git a/Aria/src/main/java/com/arialyy/aria/core/Aria.java b/Aria/src/main/java/com/arialyy/aria/core/Aria.java
index c1b20207..4b3fb688 100644
--- a/Aria/src/main/java/com/arialyy/aria/core/Aria.java
+++ b/Aria/src/main/java/com/arialyy/aria/core/Aria.java
@@ -100,7 +100,11 @@ import com.arialyy.aria.core.upload.UploadTask;
   /**
    * 下载实体
    */
-  public static final String ENTITY = "DOWNLOAD_ENTITY";
+  public static final String DOWNLOAD_ENTITY = "DOWNLOAD_ENTITY";
+  /**
+   * 上传实体
+   */
+  public static final String UPLOAD_ENTITY = "UPLOAD_ENTITY";
   /**
    * 位置
    */
diff --git a/Aria/src/main/java/com/arialyy/aria/core/Configuration.java b/Aria/src/main/java/com/arialyy/aria/core/Configuration.java
index ccc040c0..8bdc1c30 100644
--- a/Aria/src/main/java/com/arialyy/aria/core/Configuration.java
+++ b/Aria/src/main/java/com/arialyy/aria/core/Configuration.java
@@ -86,7 +86,7 @@ class Configuration {
       oldMaxTaskNum = this.maxTaskNum;
       this.maxTaskNum = maxTaskNum;
       saveKey("maxTaskNum", maxTaskNum + "");
-      DownloadTaskQueue.getInstance().setDownloadNum(maxTaskNum);
+      DownloadTaskQueue.getInstance().setMaxTaskNum(maxTaskNum);
       return this;
     }
 
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 65dcfc28..f937d321 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
@@ -69,6 +69,7 @@ public class DownloadEntity extends DbEntity implements Parcelable, IEntity {
     return failNum;
   }
 
+  @Override
   public void setFailNum(int failNum) {
     this.failNum = failNum;
   }
diff --git a/Aria/src/main/java/com/arialyy/aria/core/download/DownloadTask.java b/Aria/src/main/java/com/arialyy/aria/core/download/DownloadTask.java
index 8611e1fe..385220f5 100644
--- a/Aria/src/main/java/com/arialyy/aria/core/download/DownloadTask.java
+++ b/Aria/src/main/java/com/arialyy/aria/core/download/DownloadTask.java
@@ -208,7 +208,7 @@ public class DownloadTask implements ITask {
       // 发送停止下载的广播
       Intent intent = CommonUtil.createIntent(mContext.getPackageName(), Aria.ACTION_STOP);
       intent.putExtra(Aria.CURRENT_LOCATION, mEntity.getCurrentProgress());
-      intent.putExtra(Aria.ENTITY, mEntity);
+      intent.putExtra(Aria.DOWNLOAD_ENTITY, mEntity);
       mContext.sendBroadcast(intent);
     }
   }
@@ -227,7 +227,7 @@ public class DownloadTask implements ITask {
       }
       //发送取消下载的广播
       Intent intent = CommonUtil.createIntent(mContext.getPackageName(), Aria.ACTION_CANCEL);
-      intent.putExtra(Aria.ENTITY, mEntity);
+      intent.putExtra(Aria.DOWNLOAD_ENTITY, mEntity);
       mContext.sendBroadcast(intent);
     }
   }
@@ -285,7 +285,7 @@ public class DownloadTask implements ITask {
       this.task = wTask.get();
       this.downloadEntity = this.task.getDownloadEntity();
       sendIntent = CommonUtil.createIntent(context.getPackageName(), Aria.ACTION_RUNNING);
-      sendIntent.putExtra(Aria.ENTITY, downloadEntity);
+      sendIntent.putExtra(Aria.DOWNLOAD_ENTITY, downloadEntity);
       final AriaManager manager = AriaManager.getInstance(context);
       isOpenBroadCast = manager.getDownloadConfig().isOpenBreadCast();
       isConvertSpeed = manager.getDownloadConfig().isConvertSpeed();
@@ -406,7 +406,7 @@ public class DownloadTask implements ITask {
       downloadEntity.update();
       if (!isOpenBroadCast) return;
       Intent intent = CommonUtil.createIntent(context.getPackageName(), action);
-      intent.putExtra(Aria.ENTITY, downloadEntity);
+      intent.putExtra(Aria.DOWNLOAD_ENTITY, downloadEntity);
       if (location != -1) {
         intent.putExtra(Aria.CURRENT_LOCATION, location);
       }
diff --git a/Aria/src/main/java/com/arialyy/aria/core/inf/AbsTarget.java b/Aria/src/main/java/com/arialyy/aria/core/inf/AbsTarget.java
index 02feaab0..0941d294 100644
--- a/Aria/src/main/java/com/arialyy/aria/core/inf/AbsTarget.java
+++ b/Aria/src/main/java/com/arialyy/aria/core/inf/AbsTarget.java
@@ -40,6 +40,13 @@ public class AbsTarget<ENTITY extends IEntity, TASK_ENTITY extends ITaskEntity>
   protected TASK_ENTITY taskEntity;
   protected String targetName;
 
+  /**
+   * 将该任务优先级提到最高
+   */
+  protected void setToFirst(){
+
+  }
+
   /**
    * 重定向后，新url的key，默认为location
    */
diff --git a/Aria/src/main/java/com/arialyy/aria/core/inf/IEntity.java b/Aria/src/main/java/com/arialyy/aria/core/inf/IEntity.java
index 992d21a5..fcca2e5e 100644
--- a/Aria/src/main/java/com/arialyy/aria/core/inf/IEntity.java
+++ b/Aria/src/main/java/com/arialyy/aria/core/inf/IEntity.java
@@ -60,4 +60,6 @@ public interface IEntity {
   @Ignore public static final int STATE_CANCEL = 7;
 
   public int getState();
+
+  public void setFailNum(int failNum);
 }
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 7fc1d722..bdccfe9c 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
@@ -16,6 +16,7 @@
 
 package com.arialyy.aria.core.queue;
 
+import android.util.Log;
 import com.arialyy.aria.core.inf.IEntity;
 import com.arialyy.aria.core.inf.ITask;
 import com.arialyy.aria.core.inf.ITaskEntity;
@@ -24,8 +25,89 @@ import com.arialyy.aria.core.queue.pool.ExecutePool;
 
 /**
  * Created by Aria.Lao on 2017/2/23.
+ * 任务队列
  */
 abstract class AbsTaskQueue<TASK extends ITask, TASK_ENTITY extends ITaskEntity, ENTITY extends IEntity>
     implements ITaskQueue<TASK, TASK_ENTITY, ENTITY> {
+  private final String TAG = "AbsTaskQueue";
   CachePool<TASK> mCachePool = new CachePool<>();
+  ExecutePool<TASK> mExecutePool = null;
+
+  /**
+   * 获取任务执行池
+   */
+  public ExecutePool getExecutePool() {
+    return mExecutePool;
+  }
+
+  /**
+   * 获取缓存池
+   */
+  public CachePool getCachePool() {
+    return mCachePool;
+  }
+
+  /**
+   * 获取缓存任务数
+   *
+   * @return 获取缓存的任务数
+   */
+  @Override public int cachePoolSize() {
+    return mCachePool.size();
+  }
+
+  /**
+   * 获取当前运行的任务数
+   *
+   * @return 当前正在执行的任务数
+   */
+  @Override public int executePoolSize() {
+    return mExecutePool.size();
+  }
+
+  @Override public TASK getTask(String url) {
+    TASK task = mExecutePool.getTask(url);
+    if (task == null) {
+      task = mCachePool.getTask(url);
+    }
+    return task;
+  }
+
+  @Override public void startTask(TASK task) {
+    if (mExecutePool.putTask(task)) {
+      mCachePool.removeTask(task);
+      task.getEntity().setFailNum(0);
+      task.start();
+    }
+  }
+
+  @Override public void stopTask(TASK task) {
+    if (!task.isRunning()) Log.w(TAG, "停止任务失败，【任务已经停止】");
+    if (mExecutePool.removeTask(task)) {
+      task.stop();
+    } else {
+      task.stop();
+      Log.w(TAG, "停止任务失败，【任务已经停止】");
+    }
+  }
+
+  @Override public void reTryStart(TASK task) {
+    if (task == null) {
+      Log.w(TAG, "重试下载失败，task 为null");
+      return;
+    }
+    if (!task.isRunning()) {
+      task.start();
+    } else {
+      Log.w(TAG, "任务没有完全停止，重试下载失败");
+    }
+  }
+
+  @Override public void cancelTask(TASK task) {
+    task.cancel();
+  }
+
+  @Override public TASK getNextTask() {
+    return mCachePool.pollTask();
+  }
 }
diff --git a/Aria/src/main/java/com/arialyy/aria/core/queue/DownloadTaskQueue.java b/Aria/src/main/java/com/arialyy/aria/core/queue/DownloadTaskQueue.java
index 210b835e..0986e74a 100644
--- a/Aria/src/main/java/com/arialyy/aria/core/queue/DownloadTaskQueue.java
+++ b/Aria/src/main/java/com/arialyy/aria/core/queue/DownloadTaskQueue.java
@@ -23,7 +23,6 @@ import com.arialyy.aria.core.download.DownloadEntity;
 import com.arialyy.aria.core.download.DownloadTask;
 import com.arialyy.aria.core.download.DownloadTaskEntity;
 import com.arialyy.aria.core.inf.IEntity;
-import com.arialyy.aria.core.queue.pool.CachePool;
 import com.arialyy.aria.core.queue.pool.ExecutePool;
 import com.arialyy.aria.core.scheduler.DownloadSchedulers;
 
@@ -36,7 +35,6 @@ public class DownloadTaskQueue
   private static final String TAG = "DownloadTaskQueue";
   private static volatile DownloadTaskQueue INSTANCE = null;
   private static final Object LOCK = new Object();
-  private ExecutePool<DownloadTask> mExecutePool = new ExecutePool<>(true);
 
   public static DownloadTaskQueue getInstance() {
     if (INSTANCE == null) {
@@ -48,79 +46,10 @@ public class DownloadTaskQueue
   }
 
   private DownloadTaskQueue() {
+    mExecutePool = new ExecutePool<>(true);
   }
 
-  /**
-   * 获取任务执行池
-   */
-  public ExecutePool getExecutePool() {
-    return mExecutePool;
-  }
-
-  /**
-   * 获取缓存池
-   */
-  public CachePool getCachePool() {
-    return mCachePool;
-  }
-
-  /**
-   * 获取当前运行的任务数
-   *
-   * @return 当前正在执行的任务数
-   */
-  public int getCurrentTaskNum() {
-    return mExecutePool.size();
-  }
-
-  /**
-   * 获取缓存任务数
-   *
-   * @return 获取缓存的任务数
-   */
-  public int getCacheTaskNum() {
-    return mCachePool.size();
-  }
-
-  @Override public void startTask(DownloadTask task) {
-    if (mExecutePool.putTask(task)) {
-      mCachePool.removeTask(task);
-      task.getDownloadEntity().setFailNum(0);
-      task.start();
-    }
-  }
-
-  @Override public void stopTask(DownloadTask task) {
-    if (!task.isRunning()) Log.w(TAG, "停止任务失败，【任务已经停止】");
-    if (mExecutePool.removeTask(task)) {
-      task.stop();
-    } else {
-      task.stop();
-      Log.w(TAG, "停止任务失败，【任务已经停止】");
-    }
-  }
-
-  @Override public void cancelTask(DownloadTask task) {
-    task.cancel();
-  }
-
-  @Override public void reTryStart(DownloadTask task) {
-    if (task == null) {
-      Log.w(TAG, "重试下载失败，task 为null");
-      return;
-    }
-    if (!task.isRunning()) {
-      task.start();
-    } else {
-      Log.w(TAG, "任务没有完全停止，重试下载失败");
-    }
-  }
-
-  @Override public int size() {
-    return mExecutePool.size();
-  }
-
-  @Override public void setDownloadNum(int downloadNum) {
+  @Override public void setMaxTaskNum(int downloadNum) {
     //原始长度
     int size = AriaManager.getInstance(AriaManager.APP).getDownloadConfig().oldMaxTaskNum;
     int diff = downloadNum - size;
@@ -164,14 +93,6 @@ public class DownloadTaskQueue
     return getTask(entity.getDownloadUrl());
   }
 
-  @Override public DownloadTask getTask(String url) {
-    DownloadTask task = mExecutePool.getTask(url);
-    if (task == null) {
-      task = mCachePool.getTask(url);
-    }
-    return task;
-  }
-
   @Override public void removeTask(DownloadEntity entity) {
     DownloadTask task = mExecutePool.getTask(entity.getDownloadUrl());
     if (task != null) {
@@ -183,7 +104,4 @@ public class DownloadTaskQueue
     }
   }
 
-  @Override public DownloadTask getNextTask() {
-    return mCachePool.pollTask();
-  }
 }
\ No newline at end of file
diff --git a/Aria/src/main/java/com/arialyy/aria/core/queue/ITaskQueue.java b/Aria/src/main/java/com/arialyy/aria/core/queue/ITaskQueue.java
index 8469cb0f..95da95f3 100644
--- a/Aria/src/main/java/com/arialyy/aria/core/queue/ITaskQueue.java
+++ b/Aria/src/main/java/com/arialyy/aria/core/queue/ITaskQueue.java
@@ -37,40 +37,45 @@ public interface ITaskQueue<TASK extends ITask, TASK_ENTITY extends ITaskEntity,
    *
    * @param task {@link DownloadTask}、{@link UploadTask}
    */
-  public void startTask(TASK task);
+  void startTask(TASK task);
 
   /**
    * 停止任务
    *
    * @param task {@link DownloadTask}、{@link UploadTask}
    */
-  public void stopTask(TASK task);
+  void stopTask(TASK task);
 
   /**
    * 取消任务
    *
    * @param task {@link DownloadTask}、{@link UploadTask}
    */
-  public void cancelTask(TASK task);
+  void cancelTask(TASK task);
 
   /**
    * 重试下载
    *
    * @param task {@link DownloadTask}、{@link UploadTask}
    */
-  public void reTryStart(TASK task);
+  void reTryStart(TASK task);
 
   /**
    * 任务池队列大小
    */
-  public int size();
+  int executePoolSize();
+
+  /**
+   * 任务缓存池大小
+   */
+  int cachePoolSize();
 
   /**
    * 设置最大任务数
    *
    * @param newMaxNum 下载任务数
    */
-  public void setDownloadNum(int newMaxNum);
+  void setMaxTaskNum(int newMaxNum);
 
   /**
    * 创建一个新的任务，创建时只是将新任务存储到缓存池
@@ -79,7 +84,7 @@ public interface ITaskQueue<TASK extends ITask, TASK_ENTITY extends ITaskEntity,
    * @param targetName 生成该任务的对象
    * @return {@link DownloadTask}、{@link UploadTask}
    */
-  public TASK createTask(String targetName, TASK_ENTITY entity);
+  TASK createTask(String targetName, TASK_ENTITY entity);
 
   /**
    * 通过工作实体缓存池或任务池搜索下载任务，如果缓存池或任务池都没有任务，则创建新任务
@@ -87,7 +92,7 @@ public interface ITaskQueue<TASK extends ITask, TASK_ENTITY extends ITaskEntity,
    * @param entity 工作实体{@link DownloadEntity}、{@link UploadEntity}
    * @return {@link DownloadTask}、{@link UploadTask}
    */
-  public TASK getTask(ENTITY entity);
+  TASK getTask(ENTITY entity);
 
   /**
    * 通过工作实体缓存池或任务池搜索下载任务，如果缓存池或任务池都没有任务，则创建新任务
@@ -95,19 +100,19 @@ public interface ITaskQueue<TASK extends ITask, TASK_ENTITY extends ITaskEntity,
    * @param url 链接地址，如果是下载，则为下载链接，如果是上传，为文件保存路径
    * @return {@link DownloadTask}、{@link UploadTask}
    */
-  public TASK getTask(String url);
+  TASK getTask(String url);
 
   /**
    * 通过工作实体删除任务
    *
    * @param entity 工作实体{@link DownloadEntity}、{@link UploadEntity}
    */
-  public void removeTask(ENTITY entity);
+  void removeTask(ENTITY entity);
 
   /**
    * 获取缓存池的下一个任务
    *
    * @return 下载任务 or null
    */
-  public TASK getNextTask();
+  TASK getNextTask();
 }
\ No newline at end of file
diff --git a/Aria/src/main/java/com/arialyy/aria/core/queue/UploadTaskQueue.java b/Aria/src/main/java/com/arialyy/aria/core/queue/UploadTaskQueue.java
index 8ce43a40..2430782e 100644
--- a/Aria/src/main/java/com/arialyy/aria/core/queue/UploadTaskQueue.java
+++ b/Aria/src/main/java/com/arialyy/aria/core/queue/UploadTaskQueue.java
@@ -18,7 +18,6 @@ package com.arialyy.aria.core.queue;
 
 import android.text.TextUtils;
 import android.util.Log;
-import com.arialyy.aria.core.download.DownloadTask;
 import com.arialyy.aria.core.queue.pool.ExecutePool;
 import com.arialyy.aria.core.scheduler.UploadSchedulers;
 import com.arialyy.aria.core.upload.UploadEntity;
@@ -44,45 +43,8 @@ public class UploadTaskQueue extends AbsTaskQueue<UploadTask, UploadTaskEntity,
     return INSTANCE;
   }
 
-  @Override public void startTask(UploadTask task) {
-    if (mExecutePool.putTask(task)) {
-      mCachePool.removeTask(task);
-      //task.getEntity().setFailNum(0);
-      task.start();
-    }
-  }
-
-  @Override public void stopTask(UploadTask task) {
-    if (!task.isRunning()) Log.w(TAG, "停止任务失败，【任务已经停止】");
-    if (mExecutePool.removeTask(task)) {
-      task.stop();
-    } else {
-      task.stop();
-      Log.w(TAG, "停止任务失败，【任务已经停止】");
-    }
-  }
-
-  @Override public void cancelTask(UploadTask task) {
-    task.cancel();
-  }
-
-  @Override public void reTryStart(UploadTask task) {
-    if (task == null) {
-      Log.w(TAG, "重试下载失败，task 为null");
-      return;
-    }
-    if (!task.isRunning()) {
-      task.start();
-    } else {
-      Log.w(TAG, "任务没有完全停止，重试下载失败");
-    }
-  }
-
-  @Override public int size() {
-    return mExecutePool.size();
-  }
 
-  @Override public void setDownloadNum(int downloadNum) {
+  @Override public void setMaxTaskNum(int newMaxNum) {
 
   }
 
@@ -102,14 +64,6 @@ public class UploadTaskQueue extends AbsTaskQueue<UploadTask, UploadTaskEntity,
     return getTask(entity.getFilePath());
   }
 
-  @Override public UploadTask getTask(String url) {
-    UploadTask task = mExecutePool.getTask(url);
-    if (task == null) {
-      task = mCachePool.getTask(url);
-    }
-    return task;
-  }
-
   @Override public void removeTask(UploadEntity entity) {
     UploadTask task = mExecutePool.getTask(entity.getFilePath());
     if (task != null) {
@@ -121,7 +75,4 @@ public class UploadTaskQueue extends AbsTaskQueue<UploadTask, UploadTaskEntity,
     }
   }
 
-  @Override public UploadTask getNextTask() {
-    return mCachePool.pollTask();
-  }
 }
diff --git a/Aria/src/main/java/com/arialyy/aria/core/scheduler/DownloadSchedulers.java b/Aria/src/main/java/com/arialyy/aria/core/scheduler/DownloadSchedulers.java
index b1ff3ddb..90eaa811 100644
--- a/Aria/src/main/java/com/arialyy/aria/core/scheduler/DownloadSchedulers.java
+++ b/Aria/src/main/java/com/arialyy/aria/core/scheduler/DownloadSchedulers.java
@@ -86,7 +86,7 @@ public class DownloadSchedulers implements ISchedulers<DownloadTask> {
       case STOP:
       case CANCEL:
         mQueue.removeTask(entity);
-        if (mQueue.size() < AriaManager.getInstance(AriaManager.APP)
+        if (mQueue.executePoolSize() < AriaManager.getInstance(AriaManager.APP)
             .getUploadConfig()
             .getMaxTaskNum()) {
           startNextTask();
diff --git a/Aria/src/main/java/com/arialyy/aria/core/scheduler/UploadSchedulers.java b/Aria/src/main/java/com/arialyy/aria/core/scheduler/UploadSchedulers.java
index 0b2dd657..ef6b0b72 100644
--- a/Aria/src/main/java/com/arialyy/aria/core/scheduler/UploadSchedulers.java
+++ b/Aria/src/main/java/com/arialyy/aria/core/scheduler/UploadSchedulers.java
@@ -171,7 +171,7 @@ public class UploadSchedulers implements ISchedulers<UploadTask> {
       case STOP:
       case CANCEL:
         mQueue.removeTask(entity);
-        if (mQueue.size() < AriaManager.getInstance(AriaManager.APP)
+        if (mQueue.executePoolSize() < AriaManager.getInstance(AriaManager.APP)
             .getUploadConfig()
             .getMaxTaskNum()) {
           startNextTask();
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 816cb24c..f3d86e57 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
@@ -81,7 +81,7 @@ public class UploadEntity extends DbEntity implements IEntity, Parcelable {
     return failNum;
   }
 
-  public void setFailNum(int failNum) {
+  @Override public void setFailNum(int failNum) {
     this.failNum = failNum;
   }
 
diff --git a/Aria/src/main/java/com/arialyy/aria/core/upload/UploadTask.java b/Aria/src/main/java/com/arialyy/aria/core/upload/UploadTask.java
index 8a23431c..f8146a41 100644
--- a/Aria/src/main/java/com/arialyy/aria/core/upload/UploadTask.java
+++ b/Aria/src/main/java/com/arialyy/aria/core/upload/UploadTask.java
@@ -99,7 +99,7 @@ public class UploadTask implements ITask {
       }
       //发送取消下载的广播
       Intent intent = CommonUtil.createIntent(AriaManager.APP.getPackageName(), Aria.ACTION_CANCEL);
-      intent.putExtra(Aria.ENTITY, mUploadEntity);
+      intent.putExtra(Aria.UPLOAD_ENTITY, mUploadEntity);
       AriaManager.APP.sendBroadcast(intent);
     }
   }
@@ -201,7 +201,7 @@ public class UploadTask implements ITask {
       this.task = new WeakReference<>(task);
       uploadEntity = this.task.get().getUploadEntity();
       sendIntent = CommonUtil.createIntent(AriaManager.APP.getPackageName(), Aria.ACTION_RUNNING);
-      sendIntent.putExtra(Aria.ENTITY, uploadEntity);
+      sendIntent.putExtra(Aria.UPLOAD_ENTITY, uploadEntity);
       context = AriaManager.APP;
       final AriaManager manager = AriaManager.getInstance(context);
       isOpenBroadCast = manager.getUploadConfig().isOpenBreadCast();
@@ -301,7 +301,7 @@ public class UploadTask implements ITask {
       uploadEntity.update();
       if (!isOpenBroadCast) return;
       Intent intent = CommonUtil.createIntent(context.getPackageName(), action);
-      intent.putExtra(Aria.ENTITY, uploadEntity);
+      intent.putExtra(Aria.UPLOAD_ENTITY, uploadEntity);
       if (location != -1) {
         intent.putExtra(Aria.CURRENT_LOCATION, location);
       }
diff --git a/BroadCast.md b/BroadCast.md
index a8decd56..70591b02 100644
--- a/BroadCast.md
+++ b/BroadCast.md
@@ -6,7 +6,7 @@ private BroadcastReceiver mReceiver = new BroadcastReceiver() {
     @Override public void onReceive(Context context, Intent intent) {
       String action = intent.getAction();
       //可以通过intent获取到下载实体，下载实体中包含了各种下载状态
-      DownloadEntity entity = intent.getParcelableExtra(Aria.ENTITY);
+      DownloadEntity entity = intent.getParcelableExtra(Aria.DOWNLOAD_ENTITY);
       switch (action) {
         case Aria.ACTION_PRE:  //预处理
           break;
diff --git a/DownloadApi.md b/DownloadApi.md
index 45134f3d..5ec2421b 100644
--- a/DownloadApi.md
+++ b/DownloadApi.md
@@ -1,7 +1,7 @@
 ## 关于Aria，你还需要知道的一些东西
 - 设置下载任务数，Aria默认下载任务为**2**
 
-  ```java
+  ```java  
   Aria.get(getContext()).setMaxDownloadNum(num);
   ```
 - 停止所有下载
diff --git a/README.md b/README.md
index 0211f181..f3c1ea9f 100644
--- a/README.md
+++ b/README.md
@@ -25,7 +25,7 @@ Aria怎样使用？
 ## 下载
 [![Download](https://api.bintray.com/packages/arialyy/maven/Aria/images/download.svg)](https://bintray.com/arialyy/maven/Aria/_latestVersion)</br>
 ```java
-compile 'com.arialyy.aria:Aria:3.1.1'
+compile 'com.arialyy.aria:Aria:3.1.2'
 ```
 
 ## 示例
@@ -266,6 +266,7 @@ Aria.download(this).removeAllTask();
 
 
 ## 开发日志
+  + v_3.1.2 优化代码结构
   + v_3.1.0 添加Aria配置文件，优化代码
   + v_3.0.3 修复暂停后删除任务，闪退问题，添加删除记录的api
   + v_3.0.2 支持30x重定向链接下载
diff --git a/app/src/main/java/com/arialyy/simple/download/DownloadModule.java b/app/src/main/java/com/arialyy/simple/download/DownloadModule.java
index aa9dab49..8269134b 100644
--- a/app/src/main/java/com/arialyy/simple/download/DownloadModule.java
+++ b/app/src/main/java/com/arialyy/simple/download/DownloadModule.java
@@ -176,7 +176,7 @@ public class DownloadModule extends BaseModule {
         String action = intent.getAction();
         switch (action) {
           case Aria.ACTION_POST_PRE:
-            DownloadEntity entity = intent.getParcelableExtra(Aria.ENTITY);
+            DownloadEntity entity = intent.getParcelableExtra(Aria.DOWNLOAD_ENTITY);
             len = entity.getFileSize();
             L.d(TAG, "download pre");
             handler.obtainMessage(SingleTaskActivity.DOWNLOAD_PRE, len).sendToTarget();