Question

我想堆叠并将变量从路由器传递到另一个并堆叠它，所以我选择了express-session。这是我设计的计划。

savinig req.body值为req.session.cAttr obj。
移至下一页并添加其他值（每个视图已连接）
在最后一个视图中，将值保存到mongoDB

这是app.js的一部分

 // router Setup
app.use('/', routes);
//app.use('/users', require('./routes/users'));

app.use(session({
    resave: false,
    saveUninitialized: false,
    secret: '~~~~',
    store: new MongoStore({
        mongooseConnection: mongoose.connection
    })
}));
// csurf Setup
app.use(csurf({cookie:false}));
app.use(function(req, res, next){
    res.locals._csrfToken = req.csrfToken();
    next();
});
//  passport
var passport = require('./config/passport');
app.use(passport.initialize());
app.use(passport.session());

//  session
app.use(function(req, res, next){
    if(req.user){
        switch (req.user.selcUniv) {
            case 1 : req.user.stringUniv = 'arg1';
                break;
            case 2 : req.user.stringUniv = 'arg2';
                break;
            case 3 : req.user.stringUniv = 'arg3';
                break;
        }
    }
    res.locals.userSession = req.user;
    next();
});

路由器

router.post('/newClassSubmit/:stage', function(req, res, next){
var sess = req.session;
switch (req.params.stage) {
    case 'stage_1' :
        sess.cAttr = {
            var1: req.body.D1,  //I changed key & attr name for a readability
            var2: req.body.D2
        }
        console.log(cAttr);
        res.render('newStage-2');
        break;
    case 'stage_2' :
        sess.cAttr = {
            var3: req.body.D3,
            var4: req.body.D4,
            var5: req.body.D5,
            var6: req.body.D6
        }
        res.render('newStage-3');
        break;
    case 'stage_3' :
        sess.cAttr = {
            var7: req.body.D7,
            var8: req.body.D8
        }
        res.render('newStage-4');
        break;
    case 'stage_4' :
        cModel.create(sess.cAttr);
        delete sess.cAttr;
        res.render('stage-end');
        break;
}
});

并表达打印出来的Cannot set property of 'cAttr' undefined.

如何添加express-session对象？

0 个答案: