Question

我正在使用angular和nodejs，我从angular端数据正确注册新用户转到nodejs端，但是当我控制台req.body时，在nodejs端，它为我提供了带值的属性，但是当我想获取单个属性值时它给我错误未定义这是我的index.js

   const express = require('express');
   const bodyParser = require('body-parser');
   const cors = require('cors');
   //this line is use to connect with mongodb
   const {mongoose} = require('./db.js');

  var userController = require('./controllers/userController.js');

 const app = express();

 app.use(bodyParser.json());

 app.use(cors({ origin : 'http://localhost:4200' })); 
// it,s listening port 3000  
 app.listen(3000,() => { console.log('app listen port : 3000'); });

//here is the user operation start   
app.use('/user',userController); //end of the user operation

这是我的userController文件

 router.post('/',(req,res) => {
 var newUser = new User({
  firstName:req.body.firstName,
  firstLast:req.body.lastName,
  emailAddress:req.body.emailAddress,
  passowrd:req.body.password,
  user_role:2,
  account_status:1,
});

 var recordExist = false;

 User.findOne({emailAddress:req.body.emailAddress},(error,doc) => {
   if(doc)
   recordExist = true;
   else
   console.log('there is an error to get record with given email :' + req.body.emailAddress);

 });

res.send(req.body.emailAddress);

});

当我控制台req.body时，它会给我所有带有值的ok属性但是当我控制台req.body.emailAddress时，s给我未定义的

   firstName: "abubakkar", lastName: "khan", emailAddress: 
   "abubakkar.tahir.khan@gmail.com", password: "12345"} firstName: 
   "abubakkar" lastName: "khan" emailAddress: "abubakkar.tahir.khan@gmail.com" password: "12345"

Answer 1

您需要将req.body解析为JSON

req.body = JSON.parse(req.body) 
console.log(req.body.emailAddress) // now it will work

当我控制台req.body时，s给我所有属性值，但是当我获得单个属性值时，s给我错误undefined

1 个答案: