cookie.js

var express = require('express');
var session = require('express-session');
var cookieParser = require('cookie-parser');

var app = express();

app.use(cookieParser());
app.use(session({
	secret: '12345',
	name: 'testapp',   //这里的name值得是cookie的name，默认cookie的name是：connect.sid
	cookie: {maxAge: 10000 },  //设置maxAge是80000ms，即10s后session和相应的cookie失效过期
	resave: false,
	saveUninitialized: true,
}));


app.get('/awesome', function(req, res){

	if(req.session.lastPage) {
		console.log('Last page was: ' + req.session.lastPage + ".");    
	}
	req.session.lastPage = '/awesome'; //每一次访问时，session对象的lastPage会自动的保存或更新内存中的session中去。
	res.send("You're Awesome. And the session expired time is: " + req.session.cookie.maxAge);
});

app.get('/radical', function(req, res){
	if (req.session.lastPage) {
		console.log('Last page was: ' + req.session.lastPage + ".");    
	}
	req.session.lastPage = '/radical';  
	res.send('What a radical visit! And the session expired time is: ' + req.session.cookie.maxAge);
});

app.get('/tubular', function(req, res){
	if (req.session.lastPage){
		console.log("Last page was: " + req.session.lastPage + ".");    
	}

	req.session.lastPage = '/tubular';
	res.send('Are you a suffer? And the session expired time is: ' + req.session.cookie.maxAge);
});


app.listen(3000,()=>{
	console.log('server start');
});