diff --git a/app/src/main/java/com/github/catvod/api/AliYun.java b/app/src/main/java/com/github/catvod/api/AliYun.java
index d8066fc5..6202c958 100644
--- a/app/src/main/java/com/github/catvod/api/AliYun.java
+++ b/app/src/main/java/com/github/catvod/api/AliYun.java
@@ -68,9 +68,10 @@ public class AliYun {
     private final ReentrantLock lock;
     private final Cache cache;
 
+    private MultiThreadedDownloader downloader;
     private ScheduledExecutorService service;
-    private AlertDialog dialog;
     private String refreshToken;
+    private AlertDialog dialog;
     private Share share;
 
     private static class Loader {
@@ -515,7 +516,9 @@ public class AliYun {
         if (thread == 1) {
             return new Object[]{ProxyVideo.proxy(downloadUrl, headers)};
         } else {
-            return new Object[]{new MultiThreadedDownloader(downloadUrl, headers, thread).start()};
+            if (downloader != null) downloader.destory();
+            downloader = new MultiThreadedDownloader(downloadUrl, headers, thread);
+            return new Object[]{downloader.start()};
         }
     }
 
diff --git a/app/src/main/java/com/github/catvod/utils/MultiThread.java b/app/src/main/java/com/github/catvod/utils/MultiThread.java
index 08d2bf5d..510bb6b8 100644
--- a/app/src/main/java/com/github/catvod/utils/MultiThread.java
+++ b/app/src/main/java/com/github/catvod/utils/MultiThread.java
@@ -6,8 +6,6 @@ import java.net.URLEncoder;
 import java.util.Map;
 import java.util.TreeMap;
 
-import fi.iki.elonen.NanoHTTPD;
-
 public class MultiThread {
 
     public static String url(String url, int thread) {
@@ -20,8 +18,7 @@ public class MultiThread {
         Map<String, String> headers = new TreeMap<>(String.CASE_INSENSITIVE_ORDER);
         for (String key : params.keySet()) headers.put(key, params.get(key));
         MultiThreadedDownloader downloader = new MultiThreadedDownloader(url, removeHeaders(headers), thread);
-        NanoHTTPD.Response response = downloader.start();
-        return new Object[]{response};
+        return new Object[]{downloader.start()};
     }
 
     private static Map<String, String> removeHeaders(Map<String, String> headers) {
diff --git a/app/src/main/java/com/github/catvod/utils/MultiThreadedDownloader.java b/app/src/main/java/com/github/catvod/utils/MultiThreadedDownloader.java
index fd5271a9..5099c76f 100644
--- a/app/src/main/java/com/github/catvod/utils/MultiThreadedDownloader.java
+++ b/app/src/main/java/com/github/catvod/utils/MultiThreadedDownloader.java
@@ -5,6 +5,7 @@ import static fi.iki.elonen.NanoHTTPD.newFixedLengthResponse;
 import android.os.SystemClock;
 
 import com.github.catvod.net.OkHttp;
+import com.github.catvod.spider.Init;
 
 import java.io.PipedInputStream;
 import java.io.PipedOutputStream;
@@ -12,6 +13,8 @@ import java.util.HashMap;
 import java.util.Locale;
 import java.util.Map;
 import java.util.concurrent.BlockingQueue;
+import java.util.concurrent.ExecutorService;
+import java.util.concurrent.Executors;
 import java.util.concurrent.LinkedBlockingQueue;
 import java.util.concurrent.TimeUnit;
 import java.util.concurrent.locks.Lock;
@@ -27,6 +30,7 @@ public class MultiThreadedDownloader {
     //已开始下载的 chunk 队列
     private final BlockingQueue<Chunk> readyChunkQueue;
     private final Map<String, String> headers;
+    private final ExecutorService executor;
     private final String url;
     private final Lock lock;
     //最多缓存多少个未被取走的chunk
@@ -54,6 +58,7 @@ public class MultiThreadedDownloader {
         this.numThreads = numThreads;
         this.lock = new ReentrantLock();
         this.readyChunkQueue = new LinkedBlockingQueue<>();
+        this.executor = Executors.newFixedThreadPool(numThreads);
     }
 
     //开始下载
@@ -125,7 +130,7 @@ public class MultiThreadedDownloader {
         //开启多线程下载
         running = true;
         for (int i = 0; i < numThreads; ++i) {
-            new Thread(MultiThreadedDownloader.this::worker).start();
+            executor.execute(this::worker);
         }
 
         //构造response
@@ -140,7 +145,7 @@ public class MultiThreadedDownloader {
         }
 
         //搬运数据流
-        new Thread(() -> {
+        Init.execute(() -> {
             try {
                 while (true) {
                     byte[] buffer = read();
@@ -159,7 +164,7 @@ public class MultiThreadedDownloader {
                     e.printStackTrace();
                 }
             }
-        }).start();
+        });
 
         return mResponse;
     }
@@ -194,6 +199,9 @@ public class MultiThreadedDownloader {
 
     private void worker() {
         while (running) {
+            //打斷技能
+            if (Thread.interrupted()) break;
+
             //生成下一个chunk
             Chunk chunk = null;
             lock.lock();
@@ -268,6 +276,11 @@ public class MultiThreadedDownloader {
         running = false;
     }
 
+    public void destory() {
+        running = false;
+        executor.shutdownNow();
+    }
+
     private static class Chunk {
 
         private final long startOffset;
@@ -283,7 +296,7 @@ public class MultiThreadedDownloader {
             return buffer;
         }
 
-        public void put(byte[] buffer) throws InterruptedException {
+        public void put(byte[] buffer) {
             this.buffer = buffer;
         }
     }
diff --git a/jar/custom_spider.jar b/jar/custom_spider.jar
index 5d4b964c..80f45f8e 100644
Binary files a/jar/custom_spider.jar and b/jar/custom_spider.jar differ
diff --git a/jar/custom_spider.jar.md5 b/jar/custom_spider.jar.md5
index 97d5b3bd..0ce31d01 100644
--- a/jar/custom_spider.jar.md5
+++ b/jar/custom_spider.jar.md5
@@ -1 +1 @@
-9060b67dfec8782aca6e79ba17c0979b
+b298a8b958138c4e48aa0858886e7880