a

controllers/event_controller.go

@@ -32,16 +32,18 @@ type EventController struct {
 
 //连接的客户端,吧每个客户端都放进来
 var clients = make(map[int]map[string]*websocket.Conn)
+var heartClients = make(map[string]*websocket.Conn)
 
 //广播频道(通道)
 var broadcast = make(chan *model.ImMessageRecord)
+var heartbit = make(chan *Message)
 
 // 配置升级程序(升级为websocket)
 var upgrader = websocket.Upgrader{}
 
-// 定义我们的消息对象
 type Message struct {
-	Data interface{} `json:"data"`
+	UserID string      `json:"userID"`
+	Data   interface{} `json:"data"`
 }
 
 // @Title 测试websocket
@@ -73,6 +75,7 @@ func (c *EventController) TestWebsocket() {
 	if len(messageGroups) == 0 {
 		return
 	}
+	heartClients[userID] = ws
 	clientUser[userID] = ws
 	for _, v := range messageGroups {
 		if len(clients[v.GroupID]) > 0 {
@@ -101,12 +104,17 @@ func (c *EventController) TestWebsocket() {
 		//接收客户端的消息
 		err := ws.ReadJSON(&s)
 		if err != nil {
-			globals.SugarLogger.Debugf("页面可能断开啦 ws.ReadJSON error: %v", err.Error())
-			for k, _ := range clients {
-				delete(clients[k], userID)
+			var m *Message
+			if err2 := ws.ReadJSON(&m); err2 == nil {
+				m.UserID = userID
+				heartbit <- m
+			} else {
+				globals.SugarLogger.Debugf("页面可能断开啦 ws.ReadJSON error: %v", err.Error())
+				for k, _ := range clients {
+					delete(clients[k], userID)
+				}
+				break //结束循环
 			}
-			// delete(clients, ws) //删除map中的客户端
-			break //结束循环
 		} else {
 			//接受消息 业务逻辑
 			broadcast <- s
@@ -145,23 +153,33 @@ func init() {
 //广播推送消息
 func handleMessages() {
 	for {
+		select {
 		//读取通道中的消息
-		msg := <-broadcast
-		globals.SugarLogger.Debugf("clients len %v", len(clients))
-		//循环map客户端
-		for userID, client := range clients[msg.GroupID] {
-			//把通道中的消息发送给客户端
-			user, err := dao.GetUser(dao.GetDB(), msg.UserID)
-			if err == nil {
-				msg.UserInfo = user
+		case msg := <-broadcast:
+			globals.SugarLogger.Debugf("clients len %v", len(clients))
+			//循环map客户端
+			for userID, client := range clients[msg.GroupID] {
+				//把通道中的消息发送给客户端
+				user, err := dao.GetUser(dao.GetDB(), msg.UserID)
+				if err == nil {
+					msg.UserInfo = user
+				}
+				globals.SugarLogger.Debugf("msg %v", utils.Format4Output(msg, false))
+				err = client.WriteJSON(msg)
+				if err != nil {
+					globals.SugarLogger.Debugf("client.WriteJSON error: %v", err)
+					client.Close() //关闭
+					delete(clients[msg.GroupID], userID)
+					// delete(clients, client) //删除map中的客户端
+				}
 			}
-			globals.SugarLogger.Debugf("msg %v", utils.Format4Output(msg, false))
-			err = client.WriteJSON(msg)
-			if err != nil {
-				globals.SugarLogger.Debugf("client.WriteJSON error: %v", err)
-				client.Close() //关闭
-				delete(clients[msg.GroupID], userID)
-				// delete(clients, client) //删除map中的客户端
+		case h := <-heartbit:
+			if err := heartClients[h.UserID].WriteJSON(&Message{
+				Data: "pang",
+			}); err != nil {
+				globals.SugarLogger.Debugf("userheart client.WriteJSON error: %v", err)
+				heartClients[h.UserID].Close()
+				delete(heartClients, h.UserID)
 			}
 		}
 	}