我是新来的角度。我试图得到一个简单的http get请求并得到这个json:https://jsonplaceholder.typicode.com/users,特别是我只想循环这些名称。
在app.module.ts中,我添加了httpclientmodule:

import { HttpClientModule } from '@angular/common/http';

在workers.component.ts中,这是我所拥有的:
import { Component, OnInit } from '@angular/core';

import { HttpClient } from '@angular/common/http';

@Component({
  selector: 'app-workers',
  templateUrl: './workers.component.html',
  styleUrls: ['./workers.component.css']
})
export class WorkersComponent implements OnInit {
  showList = [];
  http: HttpClient;

  constructor() { }

  ngOnInit() {
    //THIS IS WHAT I TRIED
    let obs = this.http.get('https://jsonplaceholder.typicode.com/users');
    obs.subscribe(() => console.log('Got the response, yay.'));

    //Later I would try to get the name with response[0].name

  }

}

workers.component.html非常简单:
          <table class="table">
          <thead>
              <tr>
                <th scope="col">Name</th>
              </tr>
            </thead>
            <tbody>
              <tr>
                <td *nfFor="let name of names">{{name}}</td>
              </tr>
            </tbody>
      </table>

目前,我只得到一个错误:
错误类型错误:无法读取未定义的属性“get”
在workers component.push../src/app/workers/workers.component.ts.workerscomponent.ngonit(workers.component.ts:29)

最佳答案

您需要在构造函数中注入HTTP,不要声明为变量类型,

constructor(private http: HttpClient) { }

DEMO

09-07 18:51