最近在学习WebSocket!但是总是遇到握手连接失败的问题！火狐浏览器给出的错误提示是 Firefox 无法建立到 ws://localhost:3000/ 服务器的连接。 并且错误直接定位到前端代码的这句：var ws = new WebSocket(‘ws://localhost:3000’); 自己反复调试还是不清楚哪里出了问题！希望得到帮助！ 下面贴出服务器端代码和客户端代码: app.js /**

• @todo require dependencies
• @author yiwei */ var express = require(‘express’), http = require(‘http’), wsio = require(‘websocket.io’);

/**

• @todo create app */ var app = express(http.createServer());

/**

• @todo 将websocket.io绑定到express上,这样它就能处理WebSocket请求了 */ var ws = wsio.attach(app);

app.use(express.static(‘public’));

/**

• @todo listening on connections */ ws.on(‘connection’, function (socket) { socket.on(‘message’, function (msg) { consoel.log('mogt: ’ + msg); socket.send(‘pong’); }); });

/**

• @todo listen port */ app.listen(3000, function () { console.log(‘success listen port: 3000’); });

client.js var lastMessage;

window.onload = function () { /* create socket / var ws = new WebSocket(‘ws://localhost:3000’); ws.onopen = function () { alert(‘open’); / send first ping */ ping(); };

ws.onmessage = function (ev) {
	console.log('got: ' + ev.data);
	document.querySelector('#latency').innerHTML = new Date - lastMessage;

	//ping again
	ping();
};

function ping() {
	lastMessage += new Date;
	ws.send('ping');
};

};