使用express，socket.io，node_redis，最后但并非最不重要的是使用media fire中的示例代码。
首先，你应该（如果你还没有这样做还）安装的node.js + NPM在30秒（以正确的方式，因为你应该 运行NPM作为 ）：
echo 'export PATH=$HOME/local/bin:$PATH' >> ~/.bashrc
. ~/.bashrc
mkdir ~/local
mkdir ~/node-latest-install
cd ~/node-latest-install
curl http://nodejs.org/dist/node-latest.tar.gz | tar xz --strip-components=1
./configure --prefix=~/local
make install # ok, fine, this step probably takes more than 30 seconds...
curl http://npmjs.org/install.sh | sh
安装node + npm后，应通过以下命令安装依赖项：
npm install express
npm install socket.io
npm install hiredis redis # hiredis to use c binding for redis => FAST :)
您可以从mediafire下载完整样本。
unzip pbsb.zip # can also do via graphical interface if you prefer.
const PORT = 3000;
const HOST = 'localhost';
var express = require('express');
var app = module.exports = express.createServer();
app.use(express.staticProvider(__dirname + '/public'));
const redis = require('redis');
const client = redis.createClient();
const io = require('socket.io');
if (!module.parent) {
app.listen(PORT, HOST);
console.log("Express server listening on port %d", app.address().port)
const socket = io.listen(app);
socket.on('connection', function(client) {
const subscribe = redis.createClient();
subscribe.subscribe('pubsub'); // listen to messages from channel pubsub
subscribe.on("message", function(channel, message) {
client.send(message);
});
client.on('message', function(msg) {
});
client.on('disconnect', function() {
subscribe.quit();
});
});
}
<html>
<head>
<title>PubSub</title>
<script src="/socket.io/socket.io.js"></script>
<script src="/javascripts/jquery-1.4.3.min.js"></script>
</head>
<body>
<div id="content"></div>
<script>
$(document).ready(function() {
var socket = new io.socket('localhost', {port: 3000, rememberTransport: false/*, transports: ['xhr-polling']*/});
var content = $('#content');
socket.on('connect', function() {
});
socket.on('message', function(message){
content.prepend(message + '<br />');
}) ;
socket.on('disconnect', function() {
console.log('disconnected');
content.html("<b>Disconnected!</b>");
});
socket.connect();
});
</script>
</body>
</html>
cd pbsb
node app.js
最好是启动谷歌浏览器（因为有websockets支持，但不是必需的）。造访http://localhost:3000以查看示例（开始时您除了PubSub标题以外什么都看不到）。
但是在publish频道上pubsub您应该会看到一条消息。下面我们发布"Hello World!"到浏览器。
publish pubsub "Hello World!"
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