From 8fd64a91471e9af57cec6e8bcccfea87c9c6efd8 Mon Sep 17 00:00:00 2001
From: AriaLyy <511455842@qq.com>
Date: Wed, 25 Oct 2017 22:29:26 +0800
Subject: [PATCH] =?UTF-8?q?=E4=BF=AE=E5=A4=8D=20ftp=E6=96=87=E4=BB=B6?=
 =?UTF-8?q?=E5=A4=B9=E4=B8=8B=E8=BD=BD=E9=97=AE=E9=A2=98?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 .../com/arialyy/aria/core/FtpUrlEntity.java   |  12 +-
 .../com/arialyy/aria/core/TaskManager.java    |   2 +-
 .../aria/core/common/AbsFtpInfoThread.java    |  32 ++++--
 .../aria/core/common/AbsFtpThreadTask.java    | 108 ++++++++++++++----
 .../core/download/FtpDirDownloadTarget.java   |   2 -
 .../aria/core/download/FtpDownloadTarget.java |   1 -
 .../download/downloader/AbsGroupUtil.java     |  85 ++++++++------
 .../downloader/DownloadGroupUtil.java         |   8 +-
 .../downloader/FtpDirDownloadUtil.java        |  16 ++-
 .../download/downloader/FtpDirInfoThread.java |   4 +-
 .../com/arialyy/aria/util/CommonUtil.java     |  17 +++
 .../simple/download/FtpDownloadActivity.java  |   8 +-
 .../group/FTPDirDownloadActivity.java         |   2 +-
 13 files changed, 212 insertions(+), 85 deletions(-)

diff --git a/Aria/src/main/java/com/arialyy/aria/core/FtpUrlEntity.java b/Aria/src/main/java/com/arialyy/aria/core/FtpUrlEntity.java
index 15e05cd1..a684e810 100644
--- a/Aria/src/main/java/com/arialyy/aria/core/FtpUrlEntity.java
+++ b/Aria/src/main/java/com/arialyy/aria/core/FtpUrlEntity.java
@@ -23,7 +23,7 @@ import java.net.InetAddress;
  * Created by Aria.Lao on 2017/10/24.
  * ftp url 信息链接实体
  */
-public class FtpUrlEntity {
+public class FtpUrlEntity implements Cloneable {
 
   public String remotePath;
 
@@ -67,4 +67,14 @@ public class FtpUrlEntity {
    * 有效的ip地址
    */
   public InetAddress validAddr;
+
+  @Override public FtpUrlEntity clone() {
+    FtpUrlEntity entity = null;
+    try {
+      entity = (FtpUrlEntity) super.clone();
+    } catch (CloneNotSupportedException e) {
+      e.printStackTrace();
+    }
+    return entity;
+  }
 }
diff --git a/Aria/src/main/java/com/arialyy/aria/core/TaskManager.java b/Aria/src/main/java/com/arialyy/aria/core/TaskManager.java
index 2d8820e2..72c5a3d3 100644
--- a/Aria/src/main/java/com/arialyy/aria/core/TaskManager.java
+++ b/Aria/src/main/java/com/arialyy/aria/core/TaskManager.java
@@ -51,7 +51,7 @@ public class TaskManager {
    * @param task 任务
    * @return {@code true}添加成功
    */
-  public boolean addTask(String key, AbsTask task) {
+  public <T extends AbsTask> boolean addTask(String key, Class<T> clazz, T task) {
     String hash = CommonUtil.keyToHashKey(key);
     if (map.keySet().contains(hash)) {
       ALog.e(TAG, "任务【" + key + "】已存在");
diff --git a/Aria/src/main/java/com/arialyy/aria/core/common/AbsFtpInfoThread.java b/Aria/src/main/java/com/arialyy/aria/core/common/AbsFtpInfoThread.java
index 992b695c..a4a2a704 100644
--- a/Aria/src/main/java/com/arialyy/aria/core/common/AbsFtpInfoThread.java
+++ b/Aria/src/main/java/com/arialyy/aria/core/common/AbsFtpInfoThread.java
@@ -70,17 +70,30 @@ public abstract class AbsFtpInfoThread<ENTITY extends AbsEntity, TASK_ENTITY ext
     FTPClient client = null;
     try {
       client = createFtpClient();
-      if (client == null) return;
+      if (client == null) {
+        failDownload("创建FTP客户端失败", true);
+        return;
+      }
       String remotePath =
           new String(setRemotePath().getBytes(charSet), AbsFtpThreadTask.SERVER_CHARSET);
       FTPFile[] files = client.listFiles(remotePath);
+
       boolean isExist = files.length != 0;
       if (!isExist && !isUpload) {
-        client.disconnect();
         failDownload("文件不存在，任务链接【" + mTaskEntity.urlEntity.url + "】", false);
+        FTPFile[] files1 = client.listFiles();
+        if (files1.length > 0) {
+          ALog.i(TAG, "路径【" + setRemotePath() + "】该下文件列表 ===================================");
+          for (FTPFile file : files1) {
+            ALog.d(TAG, file.toString());
+          }
+          ALog.i(TAG, "================================= --end-- ===================================");
+        }
+        client.disconnect();
         return;
       }
-      mSize = getFileSize(files, client, remotePath);
+      //为了防止编码错乱，需要使用原始字符串
+      mSize = getFileSize(files, client, setRemotePath());
       int reply = client.getReplyCode();
       if (!FTPReply.isPositiveCompletion(reply)) {
         if (isUpload) {
@@ -159,10 +172,15 @@ public abstract class AbsFtpInfoThread<ENTITY extends AbsEntity, TASK_ENTITY ext
 
       boolean loginSuccess = true;
       if (urlEntity.needLogin) {
-        if (TextUtils.isEmpty(urlEntity.account)) {
-          loginSuccess = client.login(urlEntity.user, urlEntity.password);
-        } else {
-          loginSuccess = client.login(urlEntity.user, urlEntity.password, urlEntity.account);
+        try {
+          if (TextUtils.isEmpty(urlEntity.account)) {
+            loginSuccess = client.login(urlEntity.user, urlEntity.password);
+          } else {
+            loginSuccess = client.login(urlEntity.user, urlEntity.password, urlEntity.account);
+          }
+        } catch (IOException e) {
+          ALog.e(TAG, client.getReplyString());
+          return null;
         }
       }
 
diff --git a/Aria/src/main/java/com/arialyy/aria/core/common/AbsFtpThreadTask.java b/Aria/src/main/java/com/arialyy/aria/core/common/AbsFtpThreadTask.java
index a9a89205..05ee1609 100644
--- a/Aria/src/main/java/com/arialyy/aria/core/common/AbsFtpThreadTask.java
+++ b/Aria/src/main/java/com/arialyy/aria/core/common/AbsFtpThreadTask.java
@@ -20,8 +20,10 @@ import com.arialyy.aria.core.FtpUrlEntity;
 import com.arialyy.aria.core.inf.AbsNormalEntity;
 import com.arialyy.aria.core.inf.AbsTaskEntity;
 import com.arialyy.aria.core.inf.IEventListener;
-import com.arialyy.aria.util.CommonUtil;
+import com.arialyy.aria.util.ALog;
 import java.io.IOException;
+import java.net.InetAddress;
+import java.net.UnknownHostException;
 import org.apache.commons.net.ftp.FTP;
 import org.apache.commons.net.ftp.FTPClient;
 import org.apache.commons.net.ftp.FTPReply;
@@ -32,7 +34,8 @@ import org.apache.commons.net.ftp.FTPReply;
  */
 public abstract class AbsFtpThreadTask<ENTITY extends AbsNormalEntity, TASK_ENTITY extends AbsTaskEntity<ENTITY>>
     extends AbsThreadTask<ENTITY, TASK_ENTITY> {
-  protected String charSet, serverIp, port;
+  private final String TAG = "AbsFtpThreadTask";
+  protected String charSet, port;
   /**
    * FTP 服务器编码
    */
@@ -46,36 +49,91 @@ public abstract class AbsFtpThreadTask<ENTITY extends AbsNormalEntity, TASK_ENTI
   /**
    * 构建FTP客户端
    */
-  protected FTPClient createClient() throws IOException {
-    FTPClient client = new FTPClient();
+  protected FTPClient createClient() {
+    FTPClient client = null;
     final FtpUrlEntity urlEntity = mTaskEntity.urlEntity;
-    client.connect(urlEntity.validAddr, Integer.parseInt(urlEntity.port));
-
-    if (urlEntity.needLogin) {
-      if (TextUtils.isEmpty(urlEntity.account)) {
-        client.login(urlEntity.user, urlEntity.password);
-      } else {
-        client.login(urlEntity.user, urlEntity.password, urlEntity.account);
+    if (urlEntity.validAddr == null) {
+      try {
+        InetAddress[] ips = InetAddress.getAllByName(urlEntity.hostName);
+        client = connect(new FTPClient(), ips, 0, Integer.parseInt(urlEntity.port));
+        if (client == null) {
+          return null;
+        }
+      } catch (UnknownHostException e) {
+        e.printStackTrace();
+      }
+    } else {
+      client = new FTPClient();
+      try {
+        client.connect(urlEntity.validAddr, Integer.parseInt(urlEntity.port));
+      } catch (IOException e) {
+        ALog.e(TAG, ALog.getExceptionString(e));
+        return null;
       }
     }
 
-    int reply = client.getReplyCode();
-    if (!FTPReply.isPositiveCompletion(reply)) {
-      client.disconnect();
-      fail(STATE.CURRENT_LOCATION, "无法连接到ftp服务器，错误码为：" + reply, null);
+    if (client == null){
       return null;
     }
-    // 开启服务器对UTF-8的支持，如果服务器支持就用UTF-8编码
-    charSet = "UTF-8";
-    if (!TextUtils.isEmpty(mTaskEntity.charSet) || !FTPReply.isPositiveCompletion(
-        client.sendCommand("OPTS UTF8", "ON"))) {
-      charSet = mTaskEntity.charSet;
+
+    try {
+      if (urlEntity.needLogin) {
+        if (TextUtils.isEmpty(urlEntity.account)) {
+          client.login(urlEntity.user, urlEntity.password);
+        } else {
+          client.login(urlEntity.user, urlEntity.password, urlEntity.account);
+        }
+      }
+      int reply = client.getReplyCode();
+      if (!FTPReply.isPositiveCompletion(reply)) {
+        client.disconnect();
+        fail(STATE.CURRENT_LOCATION, "无法连接到ftp服务器，错误码为：" + reply, null);
+        return null;
+      }
+      // 开启服务器对UTF-8的支持，如果服务器支持就用UTF-8编码
+      charSet = "UTF-8";
+      if (!TextUtils.isEmpty(mTaskEntity.charSet) || !FTPReply.isPositiveCompletion(
+          client.sendCommand("OPTS UTF8", "ON"))) {
+        charSet = mTaskEntity.charSet;
+      }
+      client.setControlEncoding(charSet);
+      client.setDataTimeout(10 * 1000);
+      client.enterLocalPassiveMode();
+      client.setFileType(FTP.BINARY_FILE_TYPE);
+      client.setControlKeepAliveTimeout(5);
+    } catch (IOException e) {
+      e.printStackTrace();
     }
-    client.setControlEncoding(charSet);
-    client.setDataTimeout(10 * 1000);
-    client.enterLocalPassiveMode();
-    client.setFileType(FTP.BINARY_FILE_TYPE);
-    client.setControlKeepAliveTimeout(5);
     return client;
   }
+
+  /**
+   * 连接到ftp服务器
+   */
+  private FTPClient connect(FTPClient client, InetAddress[] ips, int index, int port) {
+    try {
+      client.connect(ips[index], port);
+      mTaskEntity.urlEntity.validAddr = ips[index];
+      return client;
+    } catch (IOException e) {
+      try {
+        if (client.isConnected()) {
+          client.disconnect();
+        }
+      } catch (IOException e1) {
+        e1.printStackTrace();
+      }
+      if (index + 1 >= ips.length) {
+        ALog.w(TAG, "遇到[ECONNREFUSED-连接被服务器拒绝]错误，已没有其他地址，链接失败");
+        return null;
+      }
+      try {
+        Thread.sleep(1000);
+      } catch (InterruptedException e1) {
+        e1.printStackTrace();
+      }
+      ALog.w(TAG, "遇到[ECONNREFUSED-连接被服务器拒绝]错误，正在尝试下一个地址");
+      return connect(new FTPClient(), ips, index + 1, port);
+    }
+  }
 }
diff --git a/Aria/src/main/java/com/arialyy/aria/core/download/FtpDirDownloadTarget.java b/Aria/src/main/java/com/arialyy/aria/core/download/FtpDirDownloadTarget.java
index bb8a1f13..206887b9 100644
--- a/Aria/src/main/java/com/arialyy/aria/core/download/FtpDirDownloadTarget.java
+++ b/Aria/src/main/java/com/arialyy/aria/core/download/FtpDirDownloadTarget.java
@@ -16,7 +16,6 @@
 package com.arialyy.aria.core.download;
 
 import android.text.TextUtils;
-import android.util.Log;
 import com.arialyy.aria.core.inf.AbsTaskEntity;
 import com.arialyy.aria.orm.DbEntity;
 import com.arialyy.aria.util.ALog;
@@ -35,7 +34,6 @@ public class FtpDirDownloadTarget
     mTargetName = targetName;
     mTaskEntity.urlEntity = CommonUtil.getFtpUrlInfo(url);
     mTaskEntity.requestType = AbsTaskEntity.FTP_DIR;
-    Log.d(TAG, "FTP_TARGET_MD5:" + mTaskEntity.hashCode());
   }
 
   private void init(String key) {
diff --git a/Aria/src/main/java/com/arialyy/aria/core/download/FtpDownloadTarget.java b/Aria/src/main/java/com/arialyy/aria/core/download/FtpDownloadTarget.java
index e28769df..fa7d8aa2 100644
--- a/Aria/src/main/java/com/arialyy/aria/core/download/FtpDownloadTarget.java
+++ b/Aria/src/main/java/com/arialyy/aria/core/download/FtpDownloadTarget.java
@@ -17,7 +17,6 @@ package com.arialyy.aria.core.download;
 
 import android.support.annotation.NonNull;
 import android.text.TextUtils;
-import android.util.Log;
 import com.arialyy.aria.core.inf.AbsTaskEntity;
 import com.arialyy.aria.util.ALog;
 import com.arialyy.aria.util.CommonUtil;
diff --git a/Aria/src/main/java/com/arialyy/aria/core/download/downloader/AbsGroupUtil.java b/Aria/src/main/java/com/arialyy/aria/core/download/downloader/AbsGroupUtil.java
index cc0ec1b6..97bacaf5 100644
--- a/Aria/src/main/java/com/arialyy/aria/core/download/downloader/AbsGroupUtil.java
+++ b/Aria/src/main/java/com/arialyy/aria/core/download/downloader/AbsGroupUtil.java
@@ -43,6 +43,15 @@ import java.util.concurrent.Executors;
  */
 public abstract class AbsGroupUtil implements IUtil {
   private final String TAG = "AbsGroupUtil";
+  /**
+   * FTP文件夹
+   */
+  protected int FTP_DIR = 0xa1;
+  /**
+   * HTTP 任务组
+   */
+  protected int HTTP_GROUP = 0xa2;
+
   /**
    * 任务组所有任务总长度
    */
@@ -50,7 +59,7 @@ public abstract class AbsGroupUtil implements IUtil {
   long mCurrentLocation = 0;
   private ExecutorService mExePool;
   protected IDownloadGroupListener mListener;
-  protected DownloadGroupTaskEntity mTaskEntity;
+  protected DownloadGroupTaskEntity mGTEntity;
   private boolean isRunning = false;
   private Timer mTimer;
   /**
@@ -82,34 +91,32 @@ public abstract class AbsGroupUtil implements IUtil {
   private int mFailNum = 0;
   //停止的任务数
   private int mStopNum = 0;
-
   //实际的下载任务数
   int mActualTaskNum = 0;
   //初始化完成的任务数
   int mInitNum = 0;
   // 初始化失败的任务数
   int mInitFailNum = 0;
-
   //任务组大小
   int mGroupSize = 0;
 
-  AbsGroupUtil(IDownloadGroupListener listener, DownloadGroupTaskEntity taskEntity) {
+  AbsGroupUtil(IDownloadGroupListener listener, DownloadGroupTaskEntity groupEntity) {
     mListener = listener;
-    mTaskEntity = taskEntity;
+    mGTEntity = groupEntity;
     mExePool = Executors.newFixedThreadPool(Runtime.getRuntime().availableProcessors());
     List<DownloadTaskEntity> tasks =
-        DbEntity.findDatas(DownloadTaskEntity.class, "groupName=?", mTaskEntity.key);
+        DbEntity.findDatas(DownloadTaskEntity.class, "groupName=?", mGTEntity.key);
     if (tasks != null && !tasks.isEmpty()) {
       for (DownloadTaskEntity te : tasks) {
-        te.removeFile = mTaskEntity.removeFile;
+        te.removeFile = mGTEntity.removeFile;
         if (te.getEntity() == null) continue;
         mTasksMap.put(te.getEntity().getUrl(), te);
       }
     }
-    mGroupSize = mTaskEntity.entity.getSubTask().size();
-    mTotalLen = taskEntity.getEntity().getFileSize();
+    mGroupSize = mGTEntity.entity.getSubTask().size();
+    mTotalLen = groupEntity.getEntity().getFileSize();
     isNeedLoadFileSize = mTotalLen <= 1;
-    for (DownloadEntity entity : mTaskEntity.entity.getSubTask()) {
+    for (DownloadEntity entity : mGTEntity.entity.getSubTask()) {
       File file = new File(entity.getDownloadPath());
       if (entity.getState() == IEntity.STATE_COMPLETE && file.exists()) {
         mCompleteNum++;
@@ -126,10 +133,20 @@ public abstract class AbsGroupUtil implements IUtil {
     updateFileSize();
   }
 
+  /**
+   * 获取任务类型
+   *
+   * @return {@link #FTP_DIR}、{@link #HTTP_GROUP}
+   */
+  abstract int getTaskType();
+
+  /**
+   * 更新任务组文件大小
+   */
   void updateFileSize() {
     if (isNeedLoadFileSize) {
-      mTaskEntity.getEntity().setFileSize(mTotalLen);
-      mTaskEntity.getEntity().update();
+      mGTEntity.getEntity().setFileSize(mTotalLen);
+      mGTEntity.getEntity().update();
     }
   }
 
@@ -170,7 +187,7 @@ public abstract class AbsGroupUtil implements IUtil {
    * @param url 子任务下载地址
    */
   public void cancelSubTask(String url) {
-    List<String> urls = mTaskEntity.entity.getUrls();
+    List<String> urls = mGTEntity.entity.getUrls();
     if (urls != null && !urls.isEmpty() && urls.contains(url)) {
       urls.remove(url);
       DownloadTaskEntity det =
@@ -183,7 +200,7 @@ public abstract class AbsGroupUtil implements IUtil {
           mListener.onCancel();
         }
       }
-      mTaskEntity.update();
+      mGTEntity.update();
     }
     Downloader d = getDownloader(url, false);
     if (d != null) {
@@ -254,7 +271,7 @@ public abstract class AbsGroupUtil implements IUtil {
       }
     }
     delDownloadInfo();
-    mTaskEntity.deleteData();
+    mGTEntity.deleteData();
   }
 
   public void onCancel() {
@@ -266,20 +283,20 @@ public abstract class AbsGroupUtil implements IUtil {
    */
   private void delDownloadInfo() {
     List<DownloadTaskEntity> tasks =
-        DbEntity.findDatas(DownloadTaskEntity.class, "groupName=?", mTaskEntity.key);
+        DbEntity.findDatas(DownloadTaskEntity.class, "groupName=?", mGTEntity.key);
     if (tasks != null && !tasks.isEmpty()) {
       for (DownloadTaskEntity taskEntity : tasks) {
-        CommonUtil.delDownloadTaskConfig(mTaskEntity.removeFile, taskEntity);
+        CommonUtil.delDownloadTaskConfig(mGTEntity.removeFile, taskEntity);
       }
     }
 
-    File dir = new File(mTaskEntity.getEntity().getDirPath());
-    if (mTaskEntity.removeFile) {
+    File dir = new File(mGTEntity.getEntity().getDirPath());
+    if (mGTEntity.removeFile) {
       if (dir.exists()) {
         dir.delete();
       }
     } else {
-      if (!mTaskEntity.getEntity().isComplete()) {
+      if (!mGTEntity.getEntity().isComplete()) {
         dir.delete();
       }
     }
@@ -387,30 +404,34 @@ public abstract class AbsGroupUtil implements IUtil {
     DownloadTaskEntity taskEntity = mTasksMap.get(entity.getUrl());
     if (taskEntity != null) {
       taskEntity.entity = entity;
-      //ftp登录的
-      taskEntity.urlEntity = createFtpUrlEntity(entity);
+      if (getTaskType() == FTP_DIR) {
+        taskEntity.urlEntity = createFtpUrlEntity(entity);
+      }
       mTasksMap.put(entity.getUrl(), taskEntity);
       return taskEntity;
     }
     taskEntity = new DownloadTaskEntity();
     taskEntity.entity = entity;
-    taskEntity.headers = mTaskEntity.headers;
-    taskEntity.requestEnum = mTaskEntity.requestEnum;
-    taskEntity.redirectUrlKey = mTaskEntity.redirectUrlKey;
-    taskEntity.removeFile = mTaskEntity.removeFile;
-    taskEntity.groupName = mTaskEntity.key;
+    taskEntity.headers = mGTEntity.headers;
+    taskEntity.requestEnum = mGTEntity.requestEnum;
+    taskEntity.redirectUrlKey = mGTEntity.redirectUrlKey;
+    taskEntity.removeFile = mGTEntity.removeFile;
+    taskEntity.groupName = mGTEntity.key;
     taskEntity.isGroupTask = true;
-    taskEntity.requestType = mTaskEntity.requestType;
-    //ftp登录的
-    taskEntity.urlEntity = createFtpUrlEntity(entity);
+    taskEntity.requestType = mGTEntity.requestType;
+    taskEntity.key = entity.getDownloadPath();
+    if (getTaskType() == FTP_DIR) {
+      taskEntity.urlEntity = createFtpUrlEntity(entity);
+    }
     taskEntity.save();
     mTasksMap.put(entity.getUrl(), taskEntity);
     return taskEntity;
   }
 
   private FtpUrlEntity createFtpUrlEntity(DownloadEntity entity) {
-    FtpUrlEntity urlEntity = CommonUtil.getFtpUrlInfo(entity.getUrl());
-    urlEntity.validAddr = mTaskEntity.urlEntity.validAddr;
+    FtpUrlEntity urlEntity = mGTEntity.urlEntity.clone();
+    urlEntity.url = entity.getUrl();
+    urlEntity.remotePath = CommonUtil.getRemotePath(entity.getUrl());
     return urlEntity;
   }
 
diff --git a/Aria/src/main/java/com/arialyy/aria/core/download/downloader/DownloadGroupUtil.java b/Aria/src/main/java/com/arialyy/aria/core/download/downloader/DownloadGroupUtil.java
index ca9f891a..82513e9a 100644
--- a/Aria/src/main/java/com/arialyy/aria/core/download/downloader/DownloadGroupUtil.java
+++ b/Aria/src/main/java/com/arialyy/aria/core/download/downloader/DownloadGroupUtil.java
@@ -43,6 +43,10 @@ public class DownloadGroupUtil extends AbsGroupUtil implements IUtil {
     mInfoPool = Executors.newCachedThreadPool();
   }
 
+  @Override int getTaskType() {
+    return HTTP_GROUP;
+  }
+
   @Override public void onCancel() {
     super.onCancel();
     if (!mInfoPool.isShutdown()) {
@@ -98,7 +102,7 @@ public class DownloadGroupUtil extends AbsGroupUtil implements IUtil {
             createChildDownload(te);
           }
           mInitNum++;
-          if (mInitNum + mInitFailNum >= mTaskEntity.getEntity().getSubTask().size()
+          if (mInitNum + mInitFailNum >= mGTEntity.getEntity().getSubTask().size()
               || !isNeedLoadFileSize) {
             startRunningFlow();
             updateFileSize();
@@ -121,7 +125,7 @@ public class DownloadGroupUtil extends AbsGroupUtil implements IUtil {
             if (mActualTaskNum < 0) mActualTaskNum = 0;
           }
           failNum++;
-          if (mInitNum + mInitFailNum >= mTaskEntity.getEntity().getSubTask().size()
+          if (mInitNum + mInitFailNum >= mGTEntity.getEntity().getSubTask().size()
               || !isNeedLoadFileSize) {
             startRunningFlow();
             updateFileSize();
diff --git a/Aria/src/main/java/com/arialyy/aria/core/download/downloader/FtpDirDownloadUtil.java b/Aria/src/main/java/com/arialyy/aria/core/download/downloader/FtpDirDownloadUtil.java
index ebd6dc6c..c939d53e 100644
--- a/Aria/src/main/java/com/arialyy/aria/core/download/downloader/FtpDirDownloadUtil.java
+++ b/Aria/src/main/java/com/arialyy/aria/core/download/downloader/FtpDirDownloadUtil.java
@@ -31,27 +31,31 @@ public class FtpDirDownloadUtil extends AbsGroupUtil {
     super(listener, taskEntity);
   }
 
+  @Override int getTaskType() {
+    return FTP_DIR;
+  }
+
   @Override protected void onStart() {
     super.onStart();
-    if (mTaskEntity.getEntity().getFileSize() > 1) {
+    if (mGTEntity.getEntity().getFileSize() > 1) {
       startDownload();
     } else {
-      new FtpDirInfoThread(mTaskEntity, new OnFileInfoCallback() {
+      new FtpDirInfoThread(mGTEntity, new OnFileInfoCallback() {
         @Override public void onComplete(String url, int code) {
           if (code >= 200 && code < 300) {
-            for (DownloadEntity entity : mTaskEntity.entity.getSubTask()) {
+            for (DownloadEntity entity : mGTEntity.entity.getSubTask()) {
               mExeMap.put(entity.getUrl(), createChildDownloadTask(entity));
             }
-            mActualTaskNum = mTaskEntity.entity.getSubTask().size();
+            mActualTaskNum = mGTEntity.entity.getSubTask().size();
             mGroupSize = mActualTaskNum;
-            mTotalLen = mTaskEntity.entity.getFileSize();
+            mTotalLen = mGTEntity.entity.getFileSize();
             startDownload();
           }
         }
 
         @Override public void onFail(String url, String errorMsg, boolean needRetry) {
           mListener.onFail(needRetry);
-          ErrorHelp.saveError("FTP_DIR", mTaskEntity.getEntity(), "", errorMsg);
+          ErrorHelp.saveError("FTP_DIR", mGTEntity.getEntity(), "", errorMsg);
         }
       }).start();
     }
diff --git a/Aria/src/main/java/com/arialyy/aria/core/download/downloader/FtpDirInfoThread.java b/Aria/src/main/java/com/arialyy/aria/core/download/downloader/FtpDirInfoThread.java
index a7ba36d8..caec83c6 100644
--- a/Aria/src/main/java/com/arialyy/aria/core/download/downloader/FtpDirInfoThread.java
+++ b/Aria/src/main/java/com/arialyy/aria/core/download/downloader/FtpDirInfoThread.java
@@ -37,7 +37,6 @@ class FtpDirInfoThread extends AbsFtpInfoThread<DownloadGroupEntity, DownloadGro
   }
 
   @Override protected String setRemotePath() {
-    String url = mEntity.getKey();
     return mTaskEntity.urlEntity.remotePath;
   }
 
@@ -55,8 +54,7 @@ class FtpDirInfoThread extends AbsFtpInfoThread<DownloadGroupEntity, DownloadGro
   private void addEntity(String remotePath, FTPFile ftpFile) {
     final FtpUrlEntity urlEntity = mTaskEntity.urlEntity;
     DownloadEntity entity = new DownloadEntity();
-    entity.setUrl(
-        urlEntity.protocol + "://" + urlEntity.hostName + ":" + urlEntity.port + remotePath);
+    entity.setUrl(urlEntity.protocol + "://" + urlEntity.hostName + ":" + urlEntity.port + remotePath);
     entity.setDownloadPath(mEntity.getDirPath() + "/" + remotePath);
     int lastIndex = remotePath.lastIndexOf("/");
     String fileName = lastIndex < 0 ? CommonUtil.keyToHashKey(remotePath)
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 b71f89b6..5510d3e6 100644
--- a/Aria/src/main/java/com/arialyy/aria/util/CommonUtil.java
+++ b/Aria/src/main/java/com/arialyy/aria/util/CommonUtil.java
@@ -109,6 +109,23 @@ public class CommonUtil {
     return entity;
   }
 
+  /**
+   * 通过url获取FTP文件的remotePath
+   *
+   * @return remotePath。如果没有找到，返回""
+   */
+  public static String getRemotePath(String url) {
+    String remotePath = null;
+    String regex = Regular.REG_FTP_URL;
+    Pattern p = Pattern.compile(regex);
+    Matcher m = p.matcher(url);
+    if (m.find() && m.groupCount() > 0) {
+      return TextUtils.isEmpty(m.group(4)) ? "" : "/" + m.group(4);
+    }
+    ALog.w(TAG, "链接【" + url + "】没有找到remotePath");
+    return "";
+  }
+
   /**
    * 转换Url
    *
diff --git a/app/src/main/java/com/arialyy/simple/download/FtpDownloadActivity.java b/app/src/main/java/com/arialyy/simple/download/FtpDownloadActivity.java
index 65f0e100..1b12ae96 100644
--- a/app/src/main/java/com/arialyy/simple/download/FtpDownloadActivity.java
+++ b/app/src/main/java/com/arialyy/simple/download/FtpDownloadActivity.java
@@ -37,8 +37,8 @@ import java.io.File;
 public class FtpDownloadActivity extends BaseActivity<ActivityFtpDownloadBinding> {
   //private final String URL = "ftp://192.168.1.9:21/下载/AriaPrj.zip";
   //private final String URL = "ftp://192.168.1.9:21/下载/[电影天堂www.dy2018.com]赛车总动员3BD中英双字.mp4";
-  //private final String URL = "ftp://d:d@dygodj8.com:12311/[电影天堂www.dy2018.com]光辉岁月BD韩语中字.rmvb";
-  private final String URL = "ftp://172.18.104.64:21/upload/成都.mp3";
+  private final String URL = "ftp://j:j@g.dygod18.com:7978/江湖告急BD国粤双语中字[电影天堂www.dy2018.com].mkv";
+  //private final String URL = "ftp://172.18.104.64:21/upload/测试/成都.mp3";
 
   @Override protected void init(Bundle savedInstanceState) {
     super.init(savedInstanceState);
@@ -60,8 +60,8 @@ public class FtpDownloadActivity extends BaseActivity<ActivityFtpDownloadBinding
     switch (view.getId()) {
       case R.id.start:
         Aria.download(this).loadFtp(URL, true)
-            //.charSet("GBK")
-            .login("lao", "123456")
+            .charSet("GBK")
+            //.login("lao", "123456")
             .setDownloadPath("/mnt/sdcard/").start();
         break;
       case R.id.stop:
diff --git a/app/src/main/java/com/arialyy/simple/download/group/FTPDirDownloadActivity.java b/app/src/main/java/com/arialyy/simple/download/group/FTPDirDownloadActivity.java
index fa811141..a597a2ad 100644
--- a/app/src/main/java/com/arialyy/simple/download/group/FTPDirDownloadActivity.java
+++ b/app/src/main/java/com/arialyy/simple/download/group/FTPDirDownloadActivity.java
@@ -35,7 +35,7 @@ import com.arialyy.simple.widget.SubStateLinearLayout;
  * Created by Aria.Lao on 2017/7/6.
  */
 public class FTPDirDownloadActivity extends BaseActivity<ActivityDownloadGroupBinding> {
-  private static final String dir = "ftp://172.18.104.64:21/haha/";
+  private static final String dir = "ftp://172.18.104.64:21/upload/测试";
 
   @Bind(R.id.child_list) SubStateLinearLayout mChildList;