1.創建個項目,也就是文件夾,這裏使用testsockethtml
2.建立文件package.json,用於描述項目:node
{ "name":"testsocket", "version":"0.0.1", "description":"my first nodejs app", "dependencies":{ "express":"~4.10.2",, "socket.io":"~1.2.0" } }
3.建立index.jsjquery
var app = require('express')(); //Express初始化變量app,做爲方法應用於http服務 var http = require('http').Server(app); var io = require('socket.io')(http); //定義一個路由方法'/'用做咱們訪問網站首頁的返回結果 app.get('/', function(req, res){ res.sendFile(__dirname + '/index.html'); console.log('new link:', req); }); io.on('connection', function(socket){ socket.on('chat message', function(msg){ io.emit('chat message', msg); console.log('message: ' + msg); }); }); //監聽服務器3000端口 http.listen(3000, function(){ console.log('listening on *:3000'); });
4.建立index.htmlexpress
<!doctype html> <html> <head> <title>Socket.IO chat</title> <style> * { margin: 0; padding: 0; box-sizing: border-box; } body { font: 13px Helvetica, Arial; } form { background: #000; padding: 3px; position: fixed; bottom: 0; width: 100%; } form input { border: 0; padding: 10px; width: 90%; margin-right: .5%; } form button { width: 9%; background: rgb(130, 224, 255); border: none; padding: 10px; } #messages { list-style-type: none; margin: 0; padding: 0; } #messages li { padding: 5px 10px; } #messages li:nth-child(odd) { background: #eee; } </style> </head> <body> <ul id="messages"></ul> <form action=""> <input id="m" autocomplete="off" /><button>Send</button> </form> <script src="https://cdn.socket.io/socket.io-1.2.0.js"></script> <script src="http://code.jquery.com/jquery-1.11.1.js"></script> <script> var myid = Math.floor(Math.random() * 100) + 1; var socket = io('/'); $('form').submit(function(){ socket.emit('chat message', myid + ' says: ' + $('#m').val()); $('#m').val(''); return false; }); socket.on('chat message', function(msg){ $('#messages').append($('<li>').text(msg)); }); </script> </body> </html>
5.執行npm
安裝:json
npm install –save express瀏覽器
npm install –save socket.io服務器
node index.jsapp
瀏覽器中訪問127.0.0.1:3000dom
6.先實現這些功能再說其餘的東西吧
demo下載地址:http://files.cnblogs.com/files/renyuzhuo/testsocket.zip