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NodeJS with Express 4.x

2024-07-13 11:55:04   217人阅读

 

Express 4.x 静态资源目录设置：

//静态文件目录app.use(‘/public‘, express.static(__dirname+‘/public‘));app.use(‘/data‘, express.static(__dirname+‘/data‘));

 

//可以让 http://www.domain.com/image/aaa.jpg访问到服务器public目录下的aaa.jpgvar express = require("express"),      app       = express();app.use(‘/image‘,express.static(__dirname + ‘/public‘));

 



 


Express 4.x 零碎知识点：

//输出静态文件res.sendfile("/views/index.html");//设定输出jsonhttp.get("/haha/", function(req, res){    //設定HTTP Header    res.setHeader(‘Content-Type‘, ‘application/json‘);    res.send({a:123,b:456});});//跳转res.redirect("http://google.com");//NodeJS显示当前目录：__dirname

 

 

Express里cookie操作的信息：
https://github.com/expressjs/cookie-parser

// 1, 加载cookie模块var cookieParser = require(‘cookie-parser‘);// 2, 激活cookieapp.use(cookieParser());// 3, 在请求的req里获取cookiesJSON.stringify(req.cookies);

 


Express里的 cookie-session
https://github.com/expressjs/cookie-session

 var cookieSession    = require(‘cookie-session‘);app.use(cookieSession());//清空session # Destroying a sessionreq.session = nullvar express = require(‘express‘)var session = require(‘cookie-session‘)var app = express()app.use(session({  keys: [‘key1‘, ‘key2‘],  secureProxy: true // if you do SSL outside of node}))app.use(function (req, res, next) {  var n = req.session.views || 0  req.session.views = ++n  res.end(n + ‘ views‘)})app.listen(3000)

 


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