上门做菜系统的Go语言开发：如何实现菜品配送跟踪功能？

type Deliverer struct {
    Name string
    Id   int
    Tel  string
    Pos  Point
}

type Point struct {
    X, Y float64
}

//服务端
func handleOrder(w Http.ResponseWriter, r *http.Request) {
    //处理WebSocket连接请求
    conn, err := upgrader.Upgrade(w, r, nil)
    if err != nil {
        log.Println(err)
        return
    }

    //读取订单状态
    status, err := readOrderStatus()
    if err != nil {
        log.Println(err)
        return
    }

    //推送订单状态
    err = conn.WriteMessage(websocket.TextMessage, []byte(status))
    if err != nil {
        log.Println(err)
        return
    }
}

//客户端
func getOrderStatus() {
    //建立WebSocket连接
    c, _, err := websocket.DefaultDialer.Dial("ws://localhost:8080/getOrderStatus", nil)
    if err != nil {
        log.Fatal("dial:", err)
    }
    defer c.Close()

    //读取订单状态更新
    for {
        _, message, err := c.ReadMessage()
        if err != nil {
            log.Println("read:", err)
            return
        }
        log.Printf("recv: %s", message)
    }
}