fix

server/websocket/internal/handler/datatransferhandler.go

@@ -119,6 +119,7 @@ func (w *wsConnectItem) heartbeat() {
 		T: constants.WEBSOCKET_HEARTBEAT,
 		D: "",
 	}
+	b, _ := json.Marshal(rsp)
 	for {
 		time.Sleep(time.Second * 10)
 		select {
@@ -128,7 +129,6 @@ func (w *wsConnectItem) heartbeat() {
 
 		}
 		//发送心跳信息
-		b, _ := json.Marshal(rsp)
 		if err := w.conn.WriteMessage(websocket.TextMessage, b); err != nil {
 			logx.Error("发送心跳信息异常，关闭连接:", w.flag, err)
 			w.close()