/* var express = require('express'); var app = express(); var bodyParser = require('body-parser'); var multer = require('multer'); var session = require('express-session'); app.use(session({ secret:'secret', resave:true, saveUninitialized:false, cookie:{ maxAge:1000*60*10 //过期时间设置(单位毫秒) } })); app.use(function(req, res, next){   res.locals.user = req.session.user;   var err = req.session.error;   res.locals.message = '';   if (err) res.locals.message = '
' + err + '
';   next(); }); app.set('views', __dirname); app.set( 'view engine', 'html' ); app.engine( '.html', require( 'ejs' ).__express ); app.use(bodyParser.json()); app.use(bodyParser.urlencoded({ extended: true })); app.use(multer()); app.get('/', function(req, res) {   res.render('index'); }); app.get('/home',function(req,res){   res.render('home'); }); app.get('/login',function(req,res){   res.render('login'); }); app.post('/login',function(req,res){   var user={     username:'admin',     password:'admin'   }   if(req.body.username==user.username&&req.body.password==user.password) {     res.send(200);   }else{     res.send( 404 );   } }); app.listen(80); */