基于websocket的协议，服务端未完全启动时, client连接失败后调用reconnect无效！

给你个样板代码，照猫画虎吧：

<script type="text/javascript">
    var ws, timer_id1, time_id2;

    //连接服务端
    function connect() {
       //创建websocket
       ws = new WebSocket("ws://"+document.domain+":8888");

       //当socket连接打开时
       ws.onopen = onopen;

       //当有消息时根据消息类型显示不同信息
       ws.onmessage = onmessage; 

       ws.onclose = function(e) {
          console.log("连接关闭，定时重连");
          timer_id1 = setInterval(function(){
            connect();
          }, 5000);
          timer_id2 && clearInterval(timer_id2);
       };

       ws.onerror = function() {
          console.log("出现错误");
       };

       //客户端主动发送心跳
       var timer_id2 = setInterval(function(){
           console.log("客户端定时发送心跳包");
           ws.send('{"type":"ping"}');
       }, 20000);
    }

    //连接建立时发送数据
    function onopen() {
        timer_id1 && clearInterval(timer_id1);
        ws.send('some data...');
    }

    //服务端发来消息时
    function onmessage(e){
    }
</script>