diff --git a/business/jxstore/event/event.go b/business/jxstore/event/event.go
index 499a872bc..898a83830 100644
--- a/business/jxstore/event/event.go
+++ b/business/jxstore/event/event.go
@@ -37,7 +37,6 @@ const (
 type WSClient struct {
 	Clients      map[int]map[string]*websocket.Conn
 	ClientsHeart map[string]*websocket.Conn
-	s            *sync.RWMutex
 }
 
 func init() {
@@ -45,7 +44,6 @@ func init() {
 	clientsHeart := make(map[string]*websocket.Conn)
 	wsClient.Clients = clients
 	wsClient.ClientsHeart = clientsHeart
-	wsClient.s = new(sync.RWMutex)
 
 	go handleMessages()
 }
@@ -101,7 +99,6 @@ func ImMessage(userID string, ws *websocket.Conn) (err error) {
 	if len(messageGroups) == 0 {
 		return
 	}
-	wsClient.s.Lock()
 	clientUser[userID] = ws
 	wsClient.ClientsHeart[userID] = ws
 	for _, v := range messageGroups {
@@ -111,7 +108,6 @@ func ImMessage(userID string, ws *websocket.Conn) (err error) {
 			wsClient.Clients[v.GroupID] = clientUser
 		}
 	}
-	wsClient.s.Unlock()
 	globals.SugarLogger.Debugf("userID :%v ,clients :%v", userID, utils.Format4Output(wsClient.Clients, false))
 
 	var s *model.ImMessageRecord
@@ -174,9 +170,10 @@ func ImMessage(userID string, ws *websocket.Conn) (err error) {
 }
 
 func GetOnlineUserCount() (count int) {
-	wsClient.s.RLock()
-	defer wsClient.s.RUnlock()
+	s := new(sync.RWMutex)
+	s.Lock()
 	count = len(wsClient.ClientsHeart)
+	s.Unlock()
 	return count
 }
 
@@ -709,9 +706,7 @@ func SendSysMessage(ctx *jxcontext.Context, imMessageRecord *model.ImMessageReco
 			}
 		}
 	} else {
-		wsClient.s.RLock()
 		client := wsClient.Clients[groupID][userID]
-		wsClient.s.RUnlock()
 		globals.SugarLogger.Debugf("msg %v", utils.Format4Output(imMessageRecord, false))
 		if client == nil {
 			return