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Js WebSocket

Js WebSocket

作者: MakerSir | 来源:发表于2020-12-16 14:27 被阅读0次

    <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:100px;height:80px;">
    登录
    </div>

    <div onclick="send()" style="width:100px;height:80px;">
    发送
    </div>

    <div onclick="send2()" style="width:100px;height:80px;">
    发送2
    </div>
    </body>
    </html>

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