diff --git a/src/main/java/com/yutou/qqbot/Controllers/AppController.java b/src/main/java/com/yutou/qqbot/Controllers/AppController.java
index 07d3800..5cc3c58 100644
--- a/src/main/java/com/yutou/qqbot/Controllers/AppController.java
+++ b/src/main/java/com/yutou/qqbot/Controllers/AppController.java
@@ -76,7 +76,7 @@ public class AppController {
     @ResponseBody
     @RequestMapping("/qq/file.do")
     public String sendFile(@RequestParam("image") MultipartFile file) throws Exception {
-        String path=AppTools.createFile("tmp",file,"tmp.png");
+        String path=AppTools.createFile("tmp",file,AppTools.getToDayNowTimeToString()+".png");
         if(StringUtils.isEmpty(path)){
             return "not file";
         }