diff --git a/src/main/java/com/dsideal/QingLong/YunXiao/Controller/YunXiaoController.java b/src/main/java/com/dsideal/QingLong/YunXiao/Controller/YunXiaoController.java
index e5ecbafc..6d46cc7c 100644
--- a/src/main/java/com/dsideal/QingLong/YunXiao/Controller/YunXiaoController.java
+++ b/src/main/java/com/dsideal/QingLong/YunXiao/Controller/YunXiaoController.java
@@ -145,9 +145,10 @@ public class YunXiaoController extends Controller {
      * 生成视频截图
      * @param url 视频地址
      */
-    // http://10.10.21.20:9000/QingLong/yx/getLessonCover?url=
+    //  http://10.10.21.20:9000/QingLong/yx/getLessonCover?url=https://ccmsyk-video.edusoa.com/down/M3u8/73/7311BCC2-D260-4D34-9B70-3722DB884CB6.m3u8
+    //  http://10.10.21.20:9000/QingLong/yx/getLessonCover?url=https://ccschool.edusoa.com/cloud_file/project/ccyx-0012/material/5b/c5/5bc51a9075751b69a9c1c5d722c39485.mp4
     @Before(GET.class)
-    public void getLessonCover(String url) {
+    public void getLessonCover(String url) throws InterruptedException {
         //获取系统临时目录
         String tmpDir = System.getProperty("java.io.tmpdir");
         //使用guid生成一个临时文件名，然后拼接到tmpDir后面，生成完整的临时文件路径
diff --git a/src/main/java/com/dsideal/QingLong/YunXiao/Util/YunXiaoVideoUtil.java b/src/main/java/com/dsideal/QingLong/YunXiao/Util/YunXiaoVideoUtil.java
index 6701f939..ac28f634 100644
--- a/src/main/java/com/dsideal/QingLong/YunXiao/Util/YunXiaoVideoUtil.java
+++ b/src/main/java/com/dsideal/QingLong/YunXiao/Util/YunXiaoVideoUtil.java
@@ -2,7 +2,7 @@ package com.dsideal.QingLong.YunXiao.Util;
 
 import cn.hutool.core.util.RuntimeUtil;
 
-import java.io.File;
+import java.io.*;
 
 public class YunXiaoVideoUtil {
     //MP4的片头长10秒
@@ -53,18 +53,18 @@ public class YunXiaoVideoUtil {
 
     /**
      * 获取视频封面
+     *
      * @param url
      * @param JpegPath
      */
-    public static void getCover(String url, String JpegPath) {
+    public static void getCover(String url, String JpegPath) throws InterruptedException {
         String cmd = getCmd(url, JpegPath);
         //使用java调用ffmpeg命令行工具生成图片
-        RuntimeUtil.exec(cmd);
-
-        System.out.println(JpegPath);
+        Process process = RuntimeUtil.exec(cmd);
+        process.waitFor();
     }
 
-    public static void main(String[] args) {
+    public static void main(String[] args) throws InterruptedException {
         String[] a = {
                 "https://ccschool.edusoa.com/cloud_file/project/ccyx-0012/material/5b/c5/5bc51a9075751b69a9c1c5d722c39485.mp4",
                 "https://ccmsyk-video.edusoa.com/down/M3u8/BE/BECBF507-1EAF-4301-A417-AE25593A62F1.m3u8",