golang-gin-websocket问题

//聊一聊接口
func Handler(c *gin.Context) {
	fmt.Println("进入函数")
	//获取发送者uid和被发送者uid
	token := module.WsGetTokenFromHeader(c.Request.Header)
	fmt.Println(token)
	stuNum := dao.Redis.Get(token).Val()
	toStuNum := c.Query("toStuNum")
	if stuNum == toStuNum {
		c.JSON(http.StatusOK, gin.H{
			"status": 203,
			"msg":    "自己无法与自己建立沟通",
		})
		return
	}
	//升级websocket协议
	conn, err := (&websocket.Upgrader{
		CheckOrigin: func(r *http.Request) bool {
			return true
		},
		//将获取的参数放进这个数组
		Subprotocols: []string{token},
	}).Upgrade(c.Writer, c.Request, nil) //升级ws协议
	if err != nil {
		http.NotFound(c.Writer, c.Request)
		return
	}
	//创建一个用户实例
	client := &models.Client{
		ID:           createID(stuNum, toStuNum), //1->2
		SendID:       createID(toStuNum, stuNum), //2->1
		FromUsername: stuNum,
		ToUsername:   toStuNum,
		Socket:       conn,
		Send:         make(chan []byte),
	}
	//用户注册到用户管理上
	mux.Lock()
	models.Manager.Register <- client
	mux.Unlock()
	go client.Read()
	go client.Write()
	go models.BatchRead(toStuNum, stuNum)
}

如果前端使用Sec-WebSocket-Protocol字段传递token的话会引发websocket刚连接上就断开的问题
届时需要在Upgrader添加

		//将获取的参数放进这个数组
		Subprotocols: []string{token},

以建立连接

	conn, err := (&websocket.Upgrader{
		CheckOrigin: func(r *http.Request) bool {
			return true
		},
		//将获取的参数放进这个数组
		Subprotocols: []string{token},
	}).Upgrade(c.Writer, c.Request, nil) //升级ws协议
	if err != nil {
		http.NotFound(c.Writer, c.Request)
		return
	}