2019-08-15 node各种小知识
2019-08-15 本文已影响0人
DreamNeverDie
1.原生接收和设置cookie
const http=require('http')
let app=http.createServer(function(req,res){
console.log(req.headers['cookie'])
res.setHeader('set-cookie',"who=me")
res.write('aaa')
res.end();
})
app.listen(3000)
2.原生实现session
const http = require('http')
let session = {}
let app = http.createServer(function (req, res) {
if (req.url == '/favicon.ico') {
res.end()
return;
}
let sessionID='';
if(req.headers['cookie']){
req.headers['cookie'].split(';').forEach((item) => {
let [name, value] = item.split('=');
if (name = 'sessID')
sessionID = value;
})
}
if (sessionID) {
if (!session[sessionID]) {
session[sessionID] = {}
}
} else {
sessionID = Math.floor(Math.random() * 10000000000)
res.setHeader('set-cookie', `sessID=${sessionID}`)
session[sessionID] = {}
}
session[sessionID].view = session[sessionID].view || 0;
session[sessionID].view++;
res.write(`<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<meta http-equiv="X-UA-Compatible" content="ie=edge">
<title>Document</title>
</head>
<body>
欢迎你第${session[sessionID].view}次访问本站
</body>
</html>`)
res.end()
})
app.listen(3000)
