app.js
> var debug = require('debug'); var express = require('express'); var
> path = require('path'); var favicon = require('serve-favicon'); var
> logger = require('morgan'); var cookieParser =
> require('cookie-parser'); var bodyParser = require('body-parser'); var
> exphbs = require('express-handlebars'); var mongoose =
> require('mongoose'); var session = require('express-session');
>
>
> var db = require('./dbconn');
>
>
> db.on('error', console.error.bind(console, 'connection error:'));
> db.once('open', function () {
> console.log('we are connected!'); });
>
>
> var index = require('./routes/index'); var users =
> require('./routes/users'); var signup = require('./routes/signup');
> var login = require('./routes/login'); var adreqform =
> require('./routes/adreqform') var dashboard =
> require('./routes/dashboard')
>
> var app = express();
>
>
> // view engine setup app.set('views', path.join(__dirname, 'views'));
> app.engine('hbs', exphbs({ extname: '.hbs', defaultLayout: 'layout'
> })); app.set('view engine', 'hbs');
>
> // uncomment after placing your favicon in /public
> //app.use(favicon(__dirname + '/public/favicon.ico'));
> app.use(logger('dev')); app.use(bodyParser.json());
> app.use(bodyParser.urlencoded({ extended: false }));
> app.use(cookieParser()); app.use(express.static(path.join(__dirname,
> 'public'))); app.use(session({
> secret: 'gh jewellery',
> resave: true,
> saveUninitialized: false
>
>
> })); app.use(function (req, res, next) {
>
> app.locals.currentUser = req.session.user;
> next(); });
>
> app.use('/', index); app.use('/users', users); app.use('/dashboard',
> dashboard); app.use('/signup', signup); app.use('/login', login);
> app.use('/adreqform', adreqform);
>
>
>
>
>
>
>
> // catch 404 and forward to error handler app.use(function (req, res,
> next) {
> var err = new Error('Not Found');
> err.status = 404;
> next(err); });
>
> // error handlers
>
> // development error handler // will print stacktrace if
> (app.get('env') === 'development') {
> app.use(function (err, req, res, next) {
> res.status(err.status || 500);
> res.render('error', {
> message: err.message,
> error: err
> });
> }); }
>
> // production error handler // no stacktraces leaked to user
> app.use(function (err, req, res, next) {
> res.status(err.status || 500);
> res.render('error', {
> message: err.message,
> error: {}
> }); });
>
> app.set('port', process.env.PORT || 3000);
>
> module.exports = app;
>
> var server = app.listen(app.get('port'), function () {
> debug('Express server listening on port ' + server.address().port);
>
>
> });
注意我分配了app.locals.currentUser = req.session.user;当我的路由/登录命中时，上面和req.session.user被设置，这是它的代码 .
login.js
var express = require（'express'）; var router = express.Router（）; var User = require（'../ models / user.model.js'）; var app = require（'../ app'）; / * GET注册页面 . * / router.get（'/'，function（req，res，next）{res.render（'login'）;}）; router.post（'/'，function（req，res，next）{User.findOne（{email：req.body.email}，function（err，user）{
var logged = false;
if（错误）{
的console.log（ERR）;
}
else if（！user）{
res.render（'login'，{errnoacc：'用户不存在！请注册 . '}）
}
else if（user && req.body.password == user.password）{
req.session.user = user;
res.render（ '仪表盘'）;
}
else {res.render（'login'，{errpass：'密码不匹配 . 请再试一次！'}）;}
//req.session.userId = user._id;
//user.logged = true;
//res.render('dashboard'，{user：user}）;
}）;
下一个（）;
}）; module.exports = router;
在上面的代码中，当命中route.post时，我分配req.session.user = user;如果一切都很好，然后我渲染仪表板视图，但有一个layout.hbs，其中有navbar，我希望app.locals.currentUser的数据显示假设currentUser现在保存用户对象 . 在我的layouts.hbs {}中使用不起作用 . 我是表达开发的新手，所以我知道我错过了什么......