Node + Express + Passport + Mongoose：req.user未定义

login时，定义了req.user，但在其他path上，req.user未定义。 也许我做错了什么，我跑出了想法。

也绝望从未被称为

server.js：

var LocalStrategy = require('passport-local').Strategy; const User = require('./models/user'); const app = express(); mongoose.Promise = global.Promise; const mongoDB = 'mongodb://mlab.com:21494/tester'; mongoose.connect(mongoDB, { useMongoClient: true }) const db = mongoose.connection; db.on('error', console.error.bind(console, 'MongoDB connection error:')); app.use(function (req, res, next) { res.header('Access-Control-Allow-Credentials', 'true'); res.header('Access-Control-Allow-Origin', '*'); res.header('Access-Control-Allow-Methods', 'GET,PUT,POST,DELETE,OPTIONS'); res.header('Access-Control-Allow-Headers', 'X-Requested-With, X-HTTP-Method-Override, Content-Type, Accept, Authorization'); if ('OPTIONS' == req.method) { res.sendStatus(200); } else { next(); } }); app.use(logger('dev')); app.use(compression()); ////////////////////////////////////////////////// passport.use(new LocalStrategy( function(username, password, done) { console.log('Strategy>>>>'); User.findOne({ username: username }, function (err, user) { if (err) { return done(err); } if (!user) { return done(null, false); } if (!user.verifyPassword(password)) { return done(null, false); } return done(null, user); }); } )); passport.use(User.createStrategy()); passport.serializeUser(function (user, done) { console.log('SERIALIZE', user); //called done(null, user.id); }); passport.deserializeUser(function (id, done) { console.log('DESIRIALIZE'); // not called User.findById(id, function (err, user) { console.log('USER Desirialise', user); done(err, user); }); }); app.use(bodyParser.json()); app.use(bodyParser.urlencoded({ extended: false })); app.use(cookieParser()); // Session app.use(require('express-session')({ secret: 'keyboard cat', resave: false, saveUninitialized: false })); app.use(passport.initialize()); app.use(passport.session()); //=====================LOGIN================================== app.use('/', require('./routes/userRouters')); 

userRouters.js：

 const router = require('express').Router(); const jwt = require('jsonwebtoken'); const passport = require('passport'); const User = require('../models/user'); router.post('/signin', passport.authenticate('local'), function (req, res, next) { console.log('SIGN IN'); const { user } = req const token = jwt.sign({ username: user.username, email: user.email, _id: user._id }, 'RESTFULAPIs') console.log('REQ USER>>', req.user); // defined console.log('SESION', req.session.cookie); // passport defined res.json({ user: { user: user.username, email: user.email, created: user.created }, token: token }); }) router.get('/test', function (req, res) { console.log('============================================'); console.log('reqUSER', req.user); //undefined console.log('SESION', req.session.cookie); // passport undefined res.json(req.user); }); /////////////////////////////////////////////////// router.post('/register', function (req, res, next) { const { username, email, password } = req.body; User.register( new User({ username, email, password }), req.body.password, (err, account) => { if (err) { res.send({ status: 400, error: err.message, data: { errorName: err.name } }); return; } passport.authenticate('local')(req, res, function () { console.log('REG req.user:>>>>', req.user); // defined res.send({ auth: true }) }); }); }) router.get('/logout', function (req, res) { console.log('============================================'); console.log('reqUSER', req.user); //undefined console.log('SESION', req.session.cookie); // passport undefined req.logout(); res.json({ messageSuccessful: 'Logout successful' }); consol.log(req.user)// null }); 

客户：

  signUp(user) { const { cookies } = this.props; const date = new Date(); date.setDate(date.getDate() + 2000) axios.post(`${URL}/register`, user).then((result) => { console.log('RESULT SIGNIN', result); if (result.data.error) { this.setState({ error: result.data.error }) } this.setState({ message: result.data.message, auth: result.data.auth }) } } ) } signIn(user) { const { cookies } = this.props; const date = new Date(); date.setDate(date.getDate() + 2000); axios.post(`${URL}/signin`, user).then((result) => { console.log('RESULT SIGNIN', result); if (result.data.error) { this.setState({ loginErrorMessage: result.data.error }) } this.setState({ loginErrorMessage: '', modalIsOpen: false, auth: true }) } } ) }; 

请帮助，我试图改变会议的设置，但没有帮助。 我正在尝试修复超过一个星期。

PS检查通过邮递员，一切工作在那里，deserializeUser被调用和req.user定义

Answer 1

问题出在客户端上。 我希望这可以帮助别人。

不起作用：

 axios.post(`${URL}/signin`, user).then((result) => { //something }) 

加工：

 const myInit = { method: 'post', headers: { 'Accept': 'application/json', 'Content-Type': 'application/json' }, body: JSON.stringify(user), mode: 'cors', credentials: "include", }; fetch(`${URL}/signin`, myInit).then(res => res.json()) .then(res => { console.log(res) });