我在index.js中调用它时,无法读取未定义的属性'名称'"/>
当我在index.js中调用它时,无法读取未定义的属性'名称'
当我将name:req.user.name传递给我的ejs文件时,它会给我undefined,请您帮我一下。如果需要,请告诉我。我尝试了很多方法,但没有一种奏效。谢谢您的帮助。
错误:
当我在index.js中调用它时,无法读取未定义的属性'名称'
app.js
const express = require("express");
const expressLayouts = require('express-ejs-layouts');
const mongoose = require("mongoose");
const app = express();
const passport = require('passport');
const flash = require('connect-flash');
const session = require('express-session');
const PORT = process.env.PORT || 3000;
const nodemailer = require("nodemailer");
const bodyParser = require("body-parser");
var exphbs = require('express-handlebars');
app.engine('handlebars', exphbs());
app.set('view engine', 'handlebars');
app.use(bodyParser.urlencoded({ extended: true }));
app.use(express.static("public"));
app.get("/home", function(req, res) {
res.sendFile(__dirname + "/index.html")
})
app.get("/login", function(req, res) {
res.sendFile(__dirname + "/login.ejs")
})
app.get("/signup", function(req, res) {
res.sendFile(__dirname + "/register.html")
})
app.get("/payment", function(req, res) {
res.sendFile(__dirname + "/payment.html")
})
app.get("/companyInfo", function(req, res) {
res.sendFile(__dirname + "/companyInfo.html")
})
app.get("/FAQ", function(req, res) {
res.sendFile(__dirname + "/Faq.html")
})
app.get("/contactUs", function(req, res) {
res.sendFile(__dirname + "/contactUs.html")
})
app.post("/contactUs", function(req, res) {
const output = `
<h1>You have a new feedback</h1>
<ul>
<h3>Full Name: ${req.body.name}</h3>
<h3>Full Email: ${req.body.email}</h3>
<h3>Order Number: ${req.body.orderNumber}</h3>
</ul>
<h1>The Subject</h3>
<h3>${req.body.subject}</h1>
`;
var transporter = nodemailer.createTransport({
service: 'gmail',
auth: {
user: "[email protected]",
pass: "Sziaszia12"
}
});
var mailOptions = {
from: req.body.email,
to: '[email protected]',
subject: 'Costumers Email',
html: output
};
transporter.sendMail(mailOptions, function(error, info) {
if (error) {
console.log(error);
res.sendFile(__dirname + ("/failed.html"), { msg: "email sent" });
} else {
console.log('Email sent: ' + info.response);
res.sendFile(__dirname + ("/success.html"), { msg: "email sent" });
}
});
});
//bodyparser
app.use(express.urlencoded({ extended: false }))
const db = require("./config/keys").mongoURI;
require('./config/passport')(passport);
// Express session
app.use(
session({
secret: 'secret',
resave: true,
saveUninitialized: true
})
);
// Passport middleware
app.use(passport.initialize());
app.use(passport.session());
// connect flash
app.use(flash());
// Global variables
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();
});
//connect mangodb using mongoose
mongoose.connect(db, { useNewUrlParser: true, useUnifiedTopology: true })
.then(() => console.log("mongoo bd connected"))
.catch(() => console.log(err));
//ejs
app.use(expressLayouts);
app.set('view engine', 'ejs');
app.use("/", require("./routes/index"));
app.use("/dashboard", require("./routes/index"));
app.use("/users", require("./routes/users"))
app.listen(PORT, console.log(`we are live on ${PORT}`));
*
index.js *
const express = require("express");
const router = express.Router();
const mongoose = require("mongoose");
const bcrypt = require('bcryptjs');
const User = require('../models/User');
const users = require("./users");
const LocalStrategy = require('passport-local').Strategy;
const { ensureAuthenticated } = require("../config/auth")
router.get("/", users, (req, res) =>
res.render("welcome", {
login: req.isAuthenticated(),
name: req.user.name //undefined
}))
user.js
const express = require("express");
const router = express.Router();
const bcrypt = require("bcryptjs");
const User = require("../models/User");
const passport = require("passport")
router.get("/login", (req, res) => res.render("login"));
router.get("/register", (req, res) => res.render("register"));
router.post('/register', (req, res) => {
const { name, email, password, password2 } = req.body;
let errors = [];
if (!name || !email || !password || !password2) {
errors.push({ msg: 'Please enter all fields' });
}
if (password != password2) {
errors.push({ msg: 'Passwords do not match' });
}
if (password.length < 6) {
errors.push({ msg: 'Password must be at least 6 characters' });
}
if (errors.length > 0) {
res.render('register', {
errors,
name,
email,
password,
password2
});
} else {
User.findOne({ email: email }).then(user => {
if (user) {
errors.push({ msg: 'Email already exists' });
res.render('register', {
errors,
name,
email,
password,
password2
});
} else {
const newUser = new User({
name,
email,
password
});
bcrypt.genSalt(10, (err, salt) => {
bcrypt.hash(newUser.password, salt, (err, hash) => {
if (err) throw err;
newUser.password = hash;
newUser
.save()
.then(user => {
req.flash(
'success_msg',
'You are now registered and can log in'
);
res.redirect('/users/login');
})
.catch(err => console.log(err));
});
});
}
});
}
});
// Login
router.post('/login', (req, res, next) => {
passport.authenticate('local', {
successRedirect: '/',
failureRedirect: '/users/login',
failureFlash: true,
})(req, res, next);
});
// Logout
router.get('/logout', (req, res) => {
req.logout();
req.flash('success_msg', 'You are logged out');
res.redirect('/users/login');
});
module.exports = router;
passport.js
const LocalStrategy = require('passport-local').Strategy;
const bcrypt = require('bcryptjs');
// Load User model
const User = require('../models/User');
module.exports = function(passport) {
passport.use(
new LocalStrategy({ usernameField: 'email' }, (email, password, done) => {
// Match user
User.findOne({
email: email
}).then(user => {
if (!user) {
return done(null, false, { message: 'That email is not registered' });
}
// Match password
bcryptpare(password, user.password, (err, isMatch) => {
if (err) throw err;
if (isMatch) {
return done(null, user);
} else {
return done(null, false, { message: 'Password incorrect' });
}
});
});
})
);
passport.serializeUser(function(user, done) {
done(null, user.id);
});
passport.deserializeUser(function(id, done) {
User.findById(id, function(err, user) {
done(err, user);
});
});
}
auth.js
module.exports = {
ensureAuthenticated: function(req, res, next) {
if (req.isAuthenticated()) {
return next();
}
req.flash('error_msg', 'Please log in to view that resource');
res.redirect('/users/login');
},
forwardAuthenticated: function(req, res, next) {
if (!req.isAuthenticated()) {
return next();
}
res.redirect('/');
}
}
回答如下:在这里,您需要添加ensureAuthenticated
,因为这是您对用户进行身份验证的地方。
router.get("/", ensureAuthenticated, (req, res) =>
res.render('welcome', {
user: req.user
}));
module.exports = router;
并且在Welcome.ejs
文件中添加<h1><%= user.name %> </h1>
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当我在index.js中调用它时,无法读取未定义的属性'名称'
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