如何在GO中存储WebSocket连接

Question

I want to store client websocket connection into wsList, and send response in uniform. but it will return "use of closed network connection". How to fix it?

import {
    "code.google.com/p/go.net/websocket" 
    ...
}

var wsList []*websocket.Conn

func WShandler(ws *websocket.Conn) {
    wsList = append(wsList, ws)
    go sendmsg()
}

func sendmsg() {
    for _, conn := range wsList {
        if err := websocket.JSON.Send(conn, outmsg); err != nil {
            fmt.Printf("%s", err)   //"use of closed network connection"
        }
    }
}

Answer 1

You cannot simply assume all connections to stay open indefinitely because the other end may close them at will or a network outage may occur, forcing them to close as well.

When you try to read or write to a closed connection, you get an error

"use of closed network connection"

You should discard closed connections.