Question

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

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);
      });
    });
  }

我已经在名为selected的对象中添加了数据。

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

控制台中的

数据。但是此数据不会插入数据库中。这是我的路线文件夹中的代码。

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中。这是我的模特

var mongoose = require('mongoose');

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

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

Answer 1

您不需要像在example中那样对数据进行编码，而必须返回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，您需要预订addJobList方法，http.post是可观察的，需要进行预订才能进行http调用：

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

MEAN Stack：post方法未反映在数据库中

1 个答案: