bug299：处理重复提交的问题

yudao-module-ecw/yudao-module-ecw-impl/src/main/java/cn/iocoder/yudao/module/ecw/controller/app/messageLeave/AppMessageLeaveController.java

@@ -48,6 +48,7 @@ public class AppMessageLeaveController {
     @PutMapping("/reply")
     @ApiOperation("回复留言")
     @PreAuthenticated
+    @Idempotent(timeout = 5)
     public CommonResult<Boolean> reply(@Valid @RequestBody MessageLeaveReplyReqVO replyReqVO) {
         replyReqVO.setReplyUserId(WebFrameworkUtils.getLoginUserId());