使用session认证用户

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

var app = express();
// 传入中间件
app.use(cookieParser('sessiontest'));
app.use(session({
secret: 'sessiontest',//与cookieParser中的一致
resave: true,
saveUninitialized:true
}));
// 写入session
app.get('/index', function (req, res) {
    var user={
        name:"Chen-xy",
        age:"22",
        address:"bj"
    }
    req.session.user=user;
    res.send('<p>get session</p>')
})
// 读取session
app.get('/user', function (req, res) {

    if(req.session.user){
        var user=req.session.user;
        console.log(req.sessionID);
        res.send('你好'+user.name+'，欢迎来到我的家园。');
    }else{
        res.send('你还没有登录，先登录下再试试！');
    }
})

var server = app.listen(8081, function () {
    var host = server.address().address
    var port = server.address().port
    console.log("访问地址为 http://%s:%s", host, port)
})