【NodeJs实战】Express实现Socket.IO

 服务端：app.js

var express = require('express');
var app = express();
var server = require('http').Server(app);
var path = require('path');
var io = require('socket.io')(server);

app.use(express.static(path.join(__dirname, 'public')));//设置静态文件存放目录在public下

server.listen(80);

app.get('/', function (req, res) {
  res.sendfile(__dirname + '/index.html');
});

io.on('connection', function (socket) {
  socket.emit('news', { hello: 'world' });
  socket.on('my other event', function (data) {
    console.log(data);
  });
});

客户端：index.html 

<script src="/socket.io/socket.io.js"></script>
<script>
  var socket = io.connect('http://localhost');
  socket.on('news', function (data) {
    console.log(data);
    socket.emit('my other event', { my: 'data' });
  });
</script>