MEAN Stack：post方法没有反映在数据库中 [英] MEAN Stack: post method is not reflecting in database

问题描述

我正在尝试通过HTTP post方法传递一些数据，但它没有反映在数据库中。
这是代码。

I'm trying to pass some data through HTTP post method but it is not reflecting in the database. This is code.

addJobList(jobitem) {
    let headers = new Headers();
    headers.append('Content-Type','application/json');
    var selected = {
      companyTitle : jobitem.company,
      jobTitle : jobitem.jobtitle,
      location : jobitem.location
    }
    console.log(selected);
    this.http.post('http://localhost:3000/api/appliedjobs', JSON.stringify(selected),{headers: headers})
    .map(res => res.json());
  }
//getting jobs form back-end
  getAppliedjobList() {
    if (this.jobslist) {
      return Promise.resolve(this.jobslist);
    }
    return new Promise( resolve => {
      let headers = new Headers();
      headers.append('Content-Type','application/json');
      this.http.get('http://localhost:3000/api/appliedjobs',{headers: headers})
      .map(res => res.json())
      .subscribe(data => {
        this.jobslist = data;
        resolve(this.jobslist);
      });
    });
  } 

我在名为selected的对象中输入数据。

I've data in in the object called selected.

{companyTitle: "Facebook", jobTitle: "System Engineer", location: "torinto,canada"}

来自控制台的数据。但是这些数据没有插入到数据库中。
这是我的路线文件夹中的代码。

data from console. But this data is not get inserted into the database. This is the code in my routes folder.

const jobList = require('../models/jobList');
router.post('/appliedjobs', function(req,res) {
  console.log('posting');
  jobList.create({
    companyTitle: req.body.companyTitle,
    jobTitle: req.body.jobTitle,
    location: req.body.location
  },function(err,list) {
    if (err) {
      console.log('err getting list '+ err);
    } else {
      res.json(list);
    }
  }
  );
});

我没有收到任何错误，只是数据没有插入数据库。
这是我的模特

I'm not getting any error just the data is not getting inserted into the database. This is my model

var mongoose = require('mongoose');

const joblistSchema = mongoose.Schema({
    companyTitle: String,
    jobTitle: String,
    location: String,
});

const JlSchema = module.exports = mongoose.model('JlSchema',joblistSchema,'joblist');

推荐答案

您无需对数据进行编码这个示例，您必须返回您的this.http。 post。

You don't need to encode your data like in this example and you must return your this.http.post.

addJobList(jobitem) {
    let headers = new Headers();
    headers.append('Content-Type','application/json');
    const selected = {
      companyTitle : jobitem.company,
      jobTitle : jobitem.jobtitle,
      location : jobitem.location
    }
    return this.http.post('http://localhost:3000/api/appliedjobs', selected, { headers: headers })
    .map(res => res.json());
  }

要使用它，你需要订阅你的addJobList方法，http.post是一个可观察的，需要订阅才能进行http调用：

To use it you need to subscribe to your addJobList method, http.post is an observable and needs to be subscribed to make the http call :

addJobList(theJobItem).subscribe(data => console.log(data));

这篇关于MEAN Stack：post方法没有反映在数据库中的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！