server.js

let express = require('express');
let path = require('path');
let bodyParser = require('body-parser');
let session = require('express-session');
let MongoStore = require('connect-mongo')(session);
let flash = require('connect-flash');

let app = express();

app.set('view engine', 'html');
app.set('views', path.resolve('views'));
app.engine('html', require('ejs').__express);


app.use(bodyParser.urlencoded({
    extended: true
}));
app.use(express.static(path.resolve('node_modules')));
app.use(express.static(path.resolve('public')));

app.use(session({
    resave: true,
    secret: 'sec',
    cookie: {
        maxAge: 3600*1000
    },
    saveUninitialized: true,
    store:new MongoStore({
        url:require('./config').dbUrl
    })
}));
//flash 必须要放在session下面执行 因为flash基于session
app.use(flash());
let index = require('./routes/index');
let user = require('./routes/user');
let article = require('./routes/article');
app.use(function (req, res, next) {
    //在locals里面放数据
    res.locals.user = req.session.user;
    res.locals.keyword = '';
    res.locals.success = req.flash('success').toString();
    res.locals.error = req.flash('error').toString();
    next();
});
app.use('/', index);
app.use('/user', user);
app.use('/article', article);

app.listen(8088);