我知道也有类似的问题，但是我无法为我的问题找到解决方案。
我正在尝试创建一个用户个人资料页面，用户可以在其中通过使用POST请求的表单来更改其信息。但是，当在输入字段中输入值时，它将返回null。读取用于验证用户身份的输入数据时，我没有这个问题。
还可以找到用户，但是req.body返回一个空对象。
使用的工具：
找到的用户：
{ _id: 5daf5ef80fb0d909e099d211,
username: 'assa',
email: 'easy@gmail.com',
password:
'$2b$05$A81bqD56TDmNoWhiHJVwR.2L7iqZBrRwYu1FEe/bp0TlkTMEUREvS',
firstName: 'test',
__v: 0 }
app.js：
let express = require("express"),
app = express(),
bodyParser = require("body-parser"),
cookieParser = require('cookie-parser'),
session = require("express-session"),
mongoose = require("mongoose"),
passport = require("passport"),
flash = require('connect-flash'),
validator = require('express-validator'),
LocalStrategy = require("passport-local"),
MongoStore = require('connect-mongo')(session);
let indexRoutes = require('./routes/index');
let userRoutes = require('./routes/user');
let User = require("./models/user");
// APP CONFIGURATION
mongoose.connect("mongodb://localhost:27017/test", { useNewUrlParser: true, useUnifiedTopology: true, }).then(() => {
console.log("Connected to MongoDB");
}).catch((error) => {
console.log("Something is wrong...");
});
require('./config/passport');
// View engine setup
app.set("view engine", "ejs");
app.use(express.static(__dirname + "/public"));
// Initial setup
app.use(bodyParser.json());
app.use(bodyParser.urlencoded({ extended: true }));
app.use(validator());
// Session setup
app.use(cookieParser());
app.use(session({
secret: 'somesecretforbytox',
resave: false,
saveUninitialized: false
}));
app.use(flash());
// Initialize passport
app.use(passport.initialize());
app.use(passport.session());
app.use(function (req, res, next) {
res.locals.currentUser = req.user;
res.locals.session = req.session;
next();
});
// ======================
// Connect to route files
// ======================
app.use('/user', userRoutes);
app.use(indexRoutes);
app.listen(3033, function () {
console.log("Listening at port 3033...");
});
user.js
let express = require('express'),
router = express.Router(),
passport = require('passport');
let User = require("../models/user");
// user profile
router.get("/profile", isLoggedIn, function (req, res) {
res.render("user/profile", { currentUser: req.user });
});
router.post('/profile', (req, res) => {
updateRecord(req, res);
res.redirect('/user/profile');
});
function updateRecord(req, res) {
User.findOne({ 'id': req.user.id }, function (err, user) {
let firstName = req.body.firstName;
user.firstName = firstName;
user.save(function (err, doc) {
if (err) {
return done(err);
}
return done(null, doc);
});
});
}
router.get("/profile/edit", isLoggedIn, function (req, res) {
res.render("user/edit", { currentUser: req.user });
});
// ...sign in and signup routes
module.exports = router;
// middleware
function isLoggedIn(req, res, next) {
if (req.isAuthenticated()) {
return next();
}
res.redirect('/user/login');
}
profile.ejs：
<form action="/user/profile" method="POST" class="form-validate form-horizontal">
<fieldset>
<legend>Edit addresss</legend>
<!-- email -->
<div class="control-group">
<div class="control-label">
<label id="jform_email1-lbl" for="jform_email" class="hasPopover required" title="" data-content="Въведете имейл адрес." data-original-title="Email Address">
Email<span class="star"> *</span></label>
</div>
<div class="controls">
<input type="email" name="email" class="validate-email required" id="jform_email" value="<%= (typeof currentUser.email != 'undefined' ? currentUser.email : '') %>" size="30" autocomplete="email" required aria-required="true">
</div>
</div>
<!-- name -->
<div class="control-group">
<div class="control-label">
<label id="jform_fname-lbl" for="jform_fname" class="hasPopover required" title="" data-content="Въведете име." data-original-title="Name">
Name<span class="star"> *</span></label>
</div>
<div class="controls">
<input type="text" name="firstName" id="jform_fname" value="<%= (typeof currentUser.firstName != 'undefined' ? currentUser.firstName : '') %>" class="required" size="30" required aria-required="true">
</div>
</div>
</fieldset>
<div class="form-actions">
<!-- <input type="hidden" name="_csrf" value=" csrfToken "> -->
<button type="submit" class="btn btn-primary validate">
<span>Save</span>
</button>
<!-- <input type="hidden" name="_csrf" value=" csrfToken "> -->
<a class="btn" href="/" title="Cancel">Cancel</a>
</div>
</form>
用户架构：
let mongoose = require('mongoose');
let Schema = mongoose.Schema;
let bcrypt = require('bcrypt');
let userSchema = new Schema({
username: { type: String, required: true },
email: { type: String, required: true },
password: { type: String, required: true },
firstName: { type: String },
lastName: { type: String },
address: { type: String },
zip: { type: String },
country: { type: String },
phone: { type: String }
});
userSchema.methods.encryptPassword = function (password) {
return bcrypt.hashSync(password, bcrypt.genSaltSync(5), null);
};
userSchema.methods.validPassword = function (password) {
return bcrypt.compareSync(password, this.password);
}
module.exports = mongoose.model('user', userSchema);
答案 0 :(得分：1)
按照Subburaj和Matheus Hatje的建议将查询更改为User.findOne({ '_id': req.user.id }即可解决问题。
答案 1 :(得分：0)
快照：
router.post('/profile', (req, res) => {
ModelName.create(req.body).then(result => {
if(result){
res.redirect('/user/profile');
}).catch(err){
res.send(err)
}
});
创建函数单独编写，请勿与更新函数进行比较。