Question

.save函数无法正常工作而不会将数据插入到表的集合中。当我使用mongodb命令将数据插入集合时，数据正在插入。我也在检查它的工作正常的猫鼬连接。当我在.save函数中使用else情况时，它将进入其他条件但数据不插入。模型和路线代码正在帮助解决这个问题。

var express = require('express');
    var router = express.Router();
    var User = require('../model/User');
    var bcrypt = require('bcryptjs');

    /* GET users listing. */
    router.get('/register', function(req, res, next) {
      res.render('register', {title: 'User registrations page !'});
    });
    router.get('/login', function(req, res, next){
      res.render('login', {title: 'User Login page !'});
    });
    //Register process
    router.post('/register', function (req, res) {
        var name = req.body.fullname;
        var email = req.body.email;
        var username = req.body.username;
        var password = req.body.password;


            var newUser = new User();
            newUser.name = name;
            newUser.email = email;
            newUser.username = username;
            newUser.password = password;
            newUser.save(function(err, savedUser){
              if (err) {
                console.log(err);
                return res.status(500).send();
              }
              return res.status(200).send();
            });
    });
 Creating a model user under the model folder which is including in users routes file 


var mongoose = require('mongoose');
var userSchema = mongoose.Schema({
    name:{
        type: String,
        required: true
    },
    email:{
        type: String,
        required: true
    },
    username:{
        type: String,
        required: true
    },
    password:{
        type: String,
        required: true
    }
});
var user = mongoose.model('myuser', userSchema);
mongoose.Promise = global.Promise;
mongoose.connect('mongodb://localhost:27017/userDet',{ useMongoClient: true});
var db = mongoose.connection;
db.on('error', console.error.bind(console, 'connection error:'));
db.once('open', function(err) {
    if (err) {
      console.log('Connection error');
    }
    // we're connected!
    else {
        console.log('We are connected !');
    }
  });
module.exports = user;

Answer 1

@NiteshSingh当你想从html表单中获取数据时需要进行解析。确保html form代码action必须与post route <form method="post" action="/register">相同。试试这段代码

var express = require('express');
var bodyParser = require('body-parser');
var mongoose=require('mongoose');
var User=require('../models/User');
var app = express();
var urlencodedParser = bodyParser.urlencoded({ extended: false });

var userRouter = express.Router();
userRouter.use(bodyParser.json());

userRouter.post('/register',urlencodedParser,function(req, res, next){

 var myData = new User(req.body);
 myData.save()
 .then(item => {
 res.send("item saved to database");
 })
 .catch(err => {
 res.status(400).send("unable to save to database");
 });
});

app.use('/register',userRouter);

module.exports = userRouter;

您可以点击此链接https://medium.com/@ratracegrad/hitchhikers-guide-to-back-end-development-with-examples-3f97c70e0073 从上到下阅读本文。你会明白的。希望这会有所帮助...

.save（）不会将数据插入集合而不会在快速js中显示错误

1 个答案: