Node.js Express js会话未定义

server.js

var express=require('./config/express');
var app=express();
app.listen(3000);

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

var app=express();
    var routes=require('../app/routes/index.server.routes');
    routes(app);

    app.use(cookieParser());
        app.use(session({
            saveUninitialized: true,
            resave: true,
            secret: "This is a secret"
        }));

module.exports=function(app){
    var indexController=require('../controllers/index.server.controller');
    app.get('/',indexController.render);
}

expressjs

var express=require('./config/express');
var app=express();
app.listen(3000);

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

var app=express();
    var routes=require('../app/routes/index.server.routes');
    routes(app);

    app.use(cookieParser());
        app.use(session({
            saveUninitialized: true,
            resave: true,
            secret: "This is a secret"
        }));

module.exports=function(app){
    var indexController=require('../controllers/index.server.controller');
    app.get('/',indexController.render);
}

routes.js

var express=require('./config/express');
var app=express();
app.listen(3000);

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

var app=express();
    var routes=require('../app/routes/index.server.routes');
    routes(app);

    app.use(cookieParser());
        app.use(session({
            saveUninitialized: true,
            resave: true,
            secret: "This is a secret"
        }));

module.exports=function(app){
    var indexController=require('../controllers/index.server.controller');
    app.get('/',indexController.render);
}

控制器

exports.render=function(request,response){
    if(request.session.lastVisit){
        console.log(request.session.lastVisit);
    }
    request.session.lastVisit=new Date();
    response.render('index',{
        model:'lokesh'
    })
}

Cannot set property 'lastVisit' of undefined
   at exports.render (C:\Users\phani\Desktop\Node\app\controllers\index.server.controller.js:9:30)
   at Layer.handle [as handle_request] (C:\Users\phani\Desktop\Node\node_modules\express\lib\router\layer.js:76:5)
   at next (C:\Users\phani\Desktop\Node\node_modules\express\lib\router\route.js:100:13)
   at Route.dispatch (C:\Users\phani\Desktop\Node\node_modules\express\lib\router\route.js:81:3)
   at Layer.handle [as handle_request] (C:\Users\phani\Desktop\Node\node_modules\express\lib\router\layer.js:76:5)
   at C:\Users\phani\Desktop\Node\node_modules\express\lib\router\index.js:227:24
   at Function.proto.process_params (C:\Users\phani\Desktop\Node\node_modules\express\lib\router\index.js:305:12)
   at C:\Users\phani\Desktop\Node\node_modules\express\lib\router\index.js:221:12
   at Function.match_layer (C:\Users\phani\Desktop\Node\node_modules\express\lib\router\index.js:288:3)
   at next (C:\Users\phani\Desktop\Node\node_modules\express\lib\router\index.js:182:10)

错误

exports.render=function(request,response){
    if(request.session.lastVisit){
        console.log(request.session.lastVisit);
    }
    request.session.lastVisit=new Date();
    response.render('index',{
        model:'lokesh'
    })
}

Cannot set property 'lastVisit' of undefined
   at exports.render (C:\Users\phani\Desktop\Node\app\controllers\index.server.controller.js:9:30)
   at Layer.handle [as handle_request] (C:\Users\phani\Desktop\Node\node_modules\express\lib\router\layer.js:76:5)
   at next (C:\Users\phani\Desktop\Node\node_modules\express\lib\router\route.js:100:13)
   at Route.dispatch (C:\Users\phani\Desktop\Node\node_modules\express\lib\router\route.js:81:3)
   at Layer.handle [as handle_request] (C:\Users\phani\Desktop\Node\node_modules\express\lib\router\layer.js:76:5)
   at C:\Users\phani\Desktop\Node\node_modules\express\lib\router\index.js:227:24
   at Function.proto.process_params (C:\Users\phani\Desktop\Node\node_modules\express\lib\router\index.js:305:12)
   at C:\Users\phani\Desktop\Node\node_modules\express\lib\router\index.js:221:12
   at Function.match_layer (C:\Users\phani\Desktop\Node\node_modules\express\lib\router\index.js:288:3)
   at next (C:\Users\phani\Desktop\Node\node_modules\express\lib\router\index.js:182:10)

---

我安装所需的模块。但它仍然无法创建会话。有人能指出错误吗。更新的完整代码

在注册中间产品后注册您的路线：

var app=express();
var routes=require('../app/routes/index.server.routes');

app.use(cookieParser());
app.use(session({
    saveUninitialized: true,
    resave: true,
    secret: "This is a secret"
}));
routes(app);

---

您使用的是什么版本的express？“express”：“~4.8.8”这一行

router=require（'router'）这是什么
路由器
模块？从您的代码中，不太清楚您是如何将操作附加到路由的。在astack overflow post中写道，为了使用会话，我们需要cookieparse以及路由器模块。所以我用了什么
路由器
模块？Express 4没有任何
路由器
模块。如果需要
Router
对象，可以使用
express.Router（）。您能否添加有关如何将
render
操作实际附加到应用程序的代码？