dongqu4443 2019-06-11 02:39
浏览 372
已采纳

Golang Websocket自定义JSON消息

I'm trying to send/receive custom JSON messages. There are 3 cases in which the JSON struct changes, therefore I have 3 different structs. I have to access the room string which is sent as RawMessage. My question is what type should the channel Broadcast be?

type Message struct {
    Type int64 `json:"type"`
    Msg  json.RawMessage
}

Broadcast chan interface{} // ??? RawMessage or maybe interface

          case m := <-r.Broadcast:
            // What type should chan Broadcast be?
            // If m is of type json.RawMessage should I deal with unmarshalling here?
            connections := r.Clients[m.Room] // 
            for c := range connections {
                select {
                case c.send <- m:
                default:
                    close(c.send)
                    delete(connections, c)
                    if len(connections) == 0 {
                        delete(r.Clients, m.Room)
                    }
                }
            }
for {
        msg := &Message{}
        err := c.conn.ReadJSON(&msg)
        // _, msg, err := c.conn.ReadMessage()
        if err != nil {
            if websocket.IsUnexpectedCloseError(err, websocket.CloseGoingAway, websocket.CloseAbnormalClosure) {
                log.Printf("error: %v", err)
            }
            break
        }

        if msg.Type == 0 {
            newVideo := &NewVideo{}
            if err = json.Unmarshal(msg.Msg, &newVideo); err != nil {
                fmt.Println(err)
            }
            Roomb.Broadcast <- msg.Msg // ??? should i send the RawMessage
            online[msg.Room] = msg
        } else if msg.Type == 1 {
            if _, ok := online[msg.Room]; ok {
                online[msg.Room].Start = float64(time.Now().Unix() - online[msg.Room].Timestamp)
                c.send <- online[msg.Room]
            }
        } else if msg.Type == 2 {
            Roomb.Broadcast <- msg.Msg // ??? should i send the RawMessage
        }
        fmt.Println(msg)
    }
  • 写回答

1条回答

      报告相同问题?

      相关推荐 更多相似问题

      悬赏问题

      • ¥15 求用C语言数组编程(需要完整且正确的程序)
      • ¥15 前端和swagger调导出接口乱码
      • ¥20 有没有ftps服务器可以使用公钥登录的?
      • ¥20 Ffmpeg代码层面如何实现视频陪速播放
      • ¥15 用python定义函数实现功能使用列表中动漫信息
      • ¥15 unity 使用 Vuforia 导入Model target 成功后database下拉菜单不显示导入的内容
      • ¥15 VBA跨工作簿获取目标工作簿内已有数据的列号
      • ¥30 Dijkstra‘s 最短路径
      • ¥15 在线教育培训平台,主要以点播视频和在线练习测试为主,除将视频做切片外,有其他哪种方式降低流量?(关键词-带宽速率)
      • ¥20 用c语音或c++实现银行叫号系统