javascript - 在带有express和mysql的nodejs中未定义 session

Question

我正在使用express、node.js和mysql，这是我的代码

var bodyParser = require("body-parser"); 
var bcrypt = require('bcrypt'); 
var urlEncodedParser = bodyParser.urlencoded({extended: false}); 
var session = require('client-sessions'); 
var express = require('express'); 
var app = express();

//mysql

var mysql = require("mysql");


app.post('/login', function(request, response){
    var body = request.body;        
    connection.query("select * from registeration where username='"+body.username+"' and password='"+body.pwd+"'",function(err, rows){
        if(err) { 
            console.log("username and password are not matched.");      
            response.end();
        } else {
            console.log("done");
            response.send(rows);
            request.usersession.user = user;        
            response.redirect(301, '/account');
        }   
    });

});

app.get('/account', function (request, response){       
    if(request.usersession && request.usersession.user) {          
        response.Send({requ: request.usersession.user});

        response.write('user detail ' + request.usersession.user[0]['username']);
        console.log('account in');
    }else{
        console.log('session error');
        response.end();
    }
});

Answer 1

未通过身份验证时添加重定向到/login:

app.get('/account', function (request, response){       
    if(request.usersession && request.usersession.user) {          
        response.Send({requ: request.usersession.user});

        response.write('user detail ' + request.usersession.user[0]['username']);
        console.log('account in');
    }else{
        console.log('session error');

        // here you should redirect to login:
        response.redirect('/login');
        response.end();
    }
});