diff --git a/controllers/event_controller.go b/controllers/event_controller.go
index f7649937b..666e2d58b 100644
--- a/controllers/event_controller.go
+++ b/controllers/event_controller.go
@@ -42,8 +42,8 @@ var heartbit = make(chan *Message)
 var upgrader = websocket.Upgrader{}
 
 type Message struct {
-	UserID string      `json:"userID"`
-	Data   interface{} `json:"data"`
+	UserID string `json:"userID"`
+	Data   string `json:"data"`
 }
 
 // @Title 测试websocket
@@ -174,6 +174,7 @@ func handleMessages() {
 				}
 			}
 		case h := <-heartbit:
+			globals.SugarLogger.Debugf("h %v", utils.Format4Output(h, false))
 			if err := heartClients[h.UserID].WriteJSON(&Message{
 				Data: "pang",
 			}); err != nil {