node.js onclose怎么触发

JavaScript073

node.js onclose怎么触发,第1张

将触发http.ServerResponse对象的close事件.

var http=require("http")

var server=http.createServer(function(req,res){

if(req.url!=="/favicon.ico"){

res.on("close",function(){

console.log("")

})

setTimeout(function(){

res.setHeader("Content-Type","text/html")

res.write("<html><head><meta charset='utf-8' /></head>")

res.write("")

res.end()

},10000)

}

})

server.listen(1337,"localhost",function(){

console.log(""+server.address().port+"......")

})

<html>

<head>

<script type="text/javascript">

var ws = new WebSocket("ws://localhost:7272")

//申请一个WebSocket对象,参数是服务端地址,同http协议使用http://开头一样,WebSocket协议的url使用ws://开头,另外安全的WebSocket协议使用wss://开头

ws.onopen = function(){

//当WebSocket创建成功时,触发onopen事件

  console.log("open")

ws.send("hello")//将消息发送到服务端

}

ws.onmessage = function(e){

//当客户端收到服务端发来的消息时,触发onmessage事件,参数e.data包含server传递过来的数据

    var data = JSON.parse(e.data)

  switch(data['type']){

            // 服务端ping客户端

            case 'ping':

                ws.send('{"type":"pong"}')

console.log("ping: "+e.data)

                break

            // 登录 更新用户列表

            case 'login':

    console.log("login: "+e.data)

                //{"type":"login","client_id":xxx,"client_name":"xxx","client_list":"[...]","time":"xxx"}

                /*say(data['client_id'], data['client_name'],  data['client_name']+' 加入了聊天室', data['time'])

                if(data['client_list'])

                {

                    client_list = data['client_list']

                }

                else

                {

                    client_list[data['client_id']] = data['client_name']

                }

                flush_client_list()

                console.log(data['client_name']+"登录成功")*/

                break

            // 发言

            case 'say':

      console.log("say: "+e.data)

                //{"type":"say","from_client_id":xxx,"to_client_id":"all/client_id","content":"xxx","time":"xxx"}

                //say(data['from_client_id'], data['from_client_name'], data['content'], data['time'])

                break

            // 用户退出 更新用户列表

            case 'logout':

    console.log("logout: "+e.data)

                //{"type":"logout","client_id":xxx,"time":"xxx"}

              // say(data['from_client_id'], data['from_client_name'], data['from_client_name']+' 退出了', data['time'])

                //delete client_list[data['from_client_id']]

              //  flush_client_list()

        }

}

ws.onclose = function(e){

//当客户端收到服务端发送的关闭连接请求时,触发onclose事件

console.log("close")

}

ws.onerror = function(e){

//如果出现连接、处理、接收、发送数据失败的时候触发onerror事件

console.log(error)

}

function login()

{

  console.log("login:111")

    var login_data = '{"type":"login","client_name":"zyx","room_id":"1"}'

    console.log("websocket握手成功,发送登录数据:"+login_data)

    ws.send(login_data)

}

function send()

{

  console.log("send:111")

    ws.send('{"type":"say","to_client_id":"all","to_client_name":"222","content":"txt"}')

}

function send2()

{

  console.log("send:111")

    ws.send('{"type":"say","to_client_id":"7f00000108fc00000011","to_client_name":"222","content":"txt"}')

}

</script>

</head>

<body>

<div onclick="login()" style="width:100pxheight:80px">

  登录

</div>

<div onclick="send()"  style="width:100pxheight:80px">

  发送

</div>

<div onclick="send2()"  style="width:100pxheight:80px">

  发送2

</div>

</body>

</html>