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我嘗試通過表單輸入在mongoDB中插入數據。問題是，我重定向到「/新」，並收到「文件未找到」錯誤，而不是「成功插入」這個說法。我嘗試將用戶信息存儲在現有集合'user'中 - 之後，我想要在路徑'/retrieve.pug'中輸入表單中的數據並將其顯示在客戶端。我深深體會到，如果有人可以幫助我這個，這是我的代碼：通過表單輸入在mongodb中插入數據+ Express.js
app.js
var express = require('express');
var bodyParser = require('body-parser');
var methodOverride = require('method-override');
var mongoose = require('mongoose');
var passport = require('passport');
var session = require('express-session');
var MongoStore = require('connect-mongo')(session);
var User = require('./models/user');
var app = express();
// mongodb connection
mongoose.connect("mongodb://localhost:27017/socialempireclub");
var db = mongoose.connection;
// mongo error
db.on('error', console.error.bind(console, 'connection error:'));
// use sessions for tracking logins
app.use(session({
secret: 'treehouse loves you',
resave: true,
saveUninitialized: false,
store: new MongoStore({
mongooseConnection: db
})
}));
// make user ID available in templates
app.use(function (req, res, next){
res.locals.currentUser = req.session.userId;
next();
});
// parse incoming requests
app.use(bodyParser.json());
app.use(bodyParser.urlencoded({ extended: false }));
app.use(require('express-method-override')('method_override_param_name'));
// serve static files from /public
app.use(express.static(__dirname + '/public'));
// view engine setup
app.set('view engine', 'pug');
app.set('views', __dirname + '/views');
// include routes
var routes = require('./routes/index');
app.use('/', routes);
// catch 404 and forward to error handler
app.use(function(req, res, next) {
var err = new Error('File Not Found');
err.status = 404;
next(err);
});
// error handler
// define as the last app.use callback
app.use(function(err, req, res, next) {
res.status(err.status || 500);
res.render('error', {
message: err.message,
error: {}
});
});
app.post('/new', function(req, res){
new user({
country: req.body.country
}).save(function(err, user){
if(err) res.json(err);
else res.send('Sucessfully inserted');
});
});
app.get('/retrieve', function(req, res){
user.find({}, function(err, user){
if(err) res.json(err);
else res.render('retrieve', {users: docs});
});
});
// listen on port 3000
app.listen(3000, function() {
console.log('Express app listening on port 3000');
});
user.js的模型
var mongoose = require('mongoose');
var bcrypt = require('bcrypt');
var UserSchema = new mongoose.Schema({
username: {
type: String,
unique: true,
required: true,
trim: true
},
email: {
type: String,
unique: true,
required: true,
trim: true
},
password: {
type: String,
required: true
},
country: String
});
// authenticate input against database documents
UserSchema.statics.authenticate = function(email, password, callback) {
User.findOne({ email: email })
.exec(function (error, user){
if (error) {
return callback(error);
} else if (!user) {
var err = new Error('User not found.');
err.status = 401;
return callback(err);
}
bcrypt.compare(password, user.password, function(error, result){
if (result === true) {
return callback(null, user);
} else {
return callback();
}
})
});
}
// hash password before saving to database
UserSchema.pre('save', function(next){
var user = this;
bcrypt.hash(user.password, 10, function(err, hash){
if (err) {
return next(err);
}
user.password = hash;
next();
})
});
var user = mongoose.model('user', UserSchema);
module.exports = user;
profile.pug //帕格模板引擎//用戶信息+形式輸入
p.heading-profile Contact details
form(action='/new', method='POST')
p
| First name
input.form-control.input-first-name(type='text', placeholder='First name', aria-describedby='sizing-addon3')
p
| Last name
input.form-control.input-last-name(type='text', placeholder='Last name', aria-describedby='sizing-addon3')
p
| Street address
input.form-control.input-street-address(type='text', placeholder='Street address', aria-describedby='sizing-addon3')
p
| City
input.form-control.input-city(type='text', placeholder='City', aria-describedby='sizing-addon3')
p
| State/Province
input.form-control.input-state(type='text', placeholder='State/Province', aria-describedby='sizing-addon3')
p
| Zip/Post Code
input.form-control.input-zip(type='text', placeholder='Zip/Post code', aria-describedby='sizing-addon3')
label(for='country') Country
input.form-control.input-country(type='text', name='country', aria-describedby='sizing-addon3')
input.button(type='submit', value='Edit')
最後，retrieve.pug
html
head
title Registration Form
body
ul
each user in users
form(action='', method='POST')
label(for='user[email]') Email:
input(type='text', name="user[_id]", value=user._id)
br
label(for='user[country]') Country:
input(type='text', name="user[country]", value=user.country)
br
input(type='submit')
你可以在這裏發佈錯誤？ – abdulbarik
感謝您的評論，錯誤是'文件未找到'。在表單輸入中點擊「提交」按鈕後顯示，路由爲「/新」。這是我得到的唯一的錯誤，我有點無知，這是怎麼回事。 – Thimxo
關於'/ new'哪個帕格是你渲染和它在哪裏？ – abdulbarik