我的node+express小例子

启动index.js:

var express = require("express");
var path = require("path");
var open = require("child_process");
var port = process.env.PORT || 3000;
var cookieParser = require('cookie-parser');
//bodyParser 的功能是解析客户端请求，通常是通过 POST 发送的内容
var bodyParser = require('body-parser');
var favicon = require("serve-favicon");
var logger = require('morgan');
var ejs = require('ejs');
//由于新版本不支持layout.ejs，则需要引入express-partials模块
var partials = require('express-partials');  

var MongoStore = require('connect-mongo');
var settings = require("./settings");
var app = express();


app.set(port,3000);

//设置引擎jade
//app.set("views","./views");
//app.set("view engine","jade");

// 定义EJS模板引擎和模板文件位置，也可以使用jade或其他模型引擎
app.set("views",path.join(__dirname,'ejviews'));
//app.set("view engine","ejs");


//注册html模板引擎 将模版页后缀换成.html  http://segmentfault.com/a/1190000000598557
app.engine('.html',ejs.__express);
//将模板引擎换成html
app.set('view engine', 'html');

//app.js 的中 app.configure 中添加以下内容，这样页面布局功能可以关闭和启用layout功能
app.set('view options', {
    layout: true
});

//定义icon图标
app.use(favicon(__dirname + '/public/images/icon.png'));
//定义日志和输出级别
app.use(logger('dev'));
// 定义数据解析器
app.use(bodyParser.json());
app.use(bodyParser.urlencoded({extended : false}));
// 定义cookie解析器
app.use(cookieParser());
//定义静态文件目录
app.use(express.static(path.join(__dirname,'public')));

app.use(partials());


//设置路由
app.get('/',function(req,res){
    res.redirect("/home");
    res.render('index',{title:'imooc home',name:"pfan",content:"大家好，我来自火星，我的任务是奋斗！",layout:"layout"});
    res.send('The time is ' + new Date().toString());
});

app.get('/user',function(req,res,next){
    res.writeHead(200,{"Content-Type":"text/html;charset=UTF-8"});
    res.write("hello world");
    res.write("hello world");
    console.log(req.body.title);
    res.send(req.body.title + req.body.text);
    res.end();
    //Express 提供了路由控制权转移的方法，即回调函数的第三个参数next，通过调用next()，会将路由控制权转移给后面的规则
    next();
});
app.get('/home',function(req,res,next){
    res.render('home',{title:'imooc home',name:"pfan",content:"大家好，我来自火星，我的任务是奋斗！",layout:"layout"});
});

var server = app.listen(3000,function(){
    console.log("listening on port %d",server.address().port);
});

open.exec("start http://127.0.0.1:3000");

　　路由模版:

　　layout.html

<!DOCTYPE html>
<html>
<head>
<title><%= title %></title>
<meta charset="UTF-8">
<meta name="keywords" content="express">
<meta name="description" content="express">
<meta name="author" content="pingfan">
<link rel='stylesheet' href='/stylesheets/style.css' />
</head>
<body>
<%- body %>
</body>
</html>

　　header.html

 1 <!DOCTYPE html>
 2 <html>
 3 <head>
 4 <title><%= title %></title>
 5 <meta charset="UTF-8">
 6 <meta name="keywords" content="express">
 7 <meta name="description" content="express">
 8 <meta name="author" content="pingfan">
 9 <link rel='stylesheet' href='/stylesheets/style.css' />
10 </head>
11 <body>

　　footer.html

<link rel='stylesheet' href='/javascripts/fastclick.js' />
</body>
</html>

　　home.html

<% include header.html %>
<h1><%= title %></h1>
<p>Welcome to <%= name %></p>
<div class="red_txt">
    <%= content %>
</div>
<h2>你大爷的，你不做会死啊</h2>
<% include footer.html %>

参考资料:

cookie 和 session: https://github.com/alsotang/node-lessons/tree/master/lesson16

expressjs session配置: http://droiz.me/2015/02/21/session%E9%85%8D%E7%BD%AE/

Express 4.x Node.js的Web框架: http://blog.csdn.net/u013758116/article/details/38703381

express session 不同步问题: http://www.lellansin.com/express-session-%E4%B8%8D%E5%90%8C%E6%AD%A5%E9%97%AE%E9%A2%98.html

Session原理、安全以及最基本的Express和Redis实现: http://segmentfault.com/a/1190000002630691