Question

将用户应用于会话时，我似乎遇到了问题。当我登录时，该功能运行完美，bcrypt完美检查密码。但是当req.session.user = user被调用时，我得到Cannot set property user of undefined。

这是我的users.js文件

var express = require('express');
var router = express.Router();
var mongoose = require('mongoose');
var bcrypt = require('bcryptjs');
var expressValidator = require('express-validator');
var passport = require('passport');
var LocalStrategy = require('passport-local').Strategy;
router.use(expressValidator);
var UserModel = require('../models/user');

/* GET users listing. */
router.get('/register', function(req, res, next) {
  res.send('respond with a resource');
});


router.get('/login', function(req, res, next) {
  res.send('respond with a resource');
});

router.registerUser = function(req,res){

  console.warn('Getting Here');
  var name = req.body.name;
  var email = req.body.email;
  var username = req.body.username;
  var password = req.body.password;
  var password2 = req.body.password2;

  console.log(req.body.name);

  var newUser = new UserModel({
    name:name,
    email:email,
    username:username,
    password: password
  });

  UserModel.createUser(newUser, function(err,user){
    if(err) throw err;
    console.log(user);
  });

}

router.login = function(req,res){


    var username = req.body.username;
    var password = req.body.password;


    UserModel.findById("584340be3f63a303484eccc0", function(err, user){


        console.warn(user.username);
        console.warn(user.password);

        bcrypt.compare(password , user.password, function(err,res) {
            if (err) throw err;


        });

        console.warn (user);
        req.session.user = user;
        console.warn(req.session.user);

    })




}






module.exports = router;

正如您在文件中看到的那样，我在数据库中查找用户并比较其字符串。如果字符串是正确的，我只想将用户添加到会话中。这是我的app.js文件，其中包含中间件。

var session = require('express-session');
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 expressValidator = require('express-validator');
var flash = require('connect-flash');

var passport = require('passport');
var LocalStrategy = require('passport-local'),Strategy;
var mongo = require('mongoose');
var routes = require('./routes/index');
var users = require('./routes/users');
var candidates = require('./routes/candidates.js');
var supporters = require('./routes/supporters.js');
var users = require('./routes/users');
var app = express();

// view engine setup
app.set('views', path.join(__dirname, 'views'));
app.set('view engine', 'ejs');

// uncomment after placing your favicon in /public
//app.use(favicon(path.join(__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('/', routes);
app.use('/users', users);
app.get('/candidates', candidates.findAll);
app.get('/candidates/:id', candidates.findOne);
app.put('/candidates/:id/votes', candidates.incrementUpvotes);
app.delete('/candidates/:id', candidates.deleteCandidate);

app.get('/supporters', supporters.findAll);
app.get('/supporters/:id', supporters.findOne);
app.post('/supporters',supporters.addPerson);
app.post('/candidates', candidates.addPerson);
app.post('/candidates/:id',candidates.updateCandidate);
app.post('/image',candidates.addImage);
app.post('/register', users.registerUser);
app.post('/login', users.login);

app.delete('/supporters/:id', supporters.deleteSupporter);
// catch 404 and forward to error handler


app.use(bodyParser.json());
app.use(bodyParser.urlencoded({extended: false}));
app.use(cookieParser());

app.use(session({
    cookieName: 'session',
    secret: 'random_string_goes_here',
    duration: 30 * 60 * 1000,
    activeDuration: 5 * 60 * 1000,
}));

app.use(passport.initialize());
app.use(passport.session());

app.use(expressValidator({
        errorFormatter: function(param,msg,value){
            var namespace = param.split('.'),
                root = namespace.shift(),
                formParam = root;

            while(namespace.length){
                formParam += '[' + namespace.shift() + ']';
            }
            return{
                param: formParam,
                msg: msg,
                value: value

            };
        }
    }
));

//Connect Flash

app.use(flash());

app.use(function(req,res,next){
    res.locals.success_msg = req.flash('success_msg');
    res.locals.error_msg = req.flash('error_msg');
    res.locals.error = req.flash('error');
    next();
});



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: {}
  });
});




module.exports = app;

我已经在这个问题上待了很长一段时间了，并且想知道是否有人能把我送到正确的方向。提前谢谢！

Answer 1

我发现了这个问题。在app.js中，我将一些app.use函数放在app.user（'router'）下面，这导致了问题

nodejs的会话问题

1 个答案: