javascript - this.http.get不是angular8函数

我想显示使用服务使用角度8的用户列表

数据服务

import { Injectable } from '@angular/core';
import { Observable } from 'rxjs' ;
import { HttpClientModule } from '@angular/common/http';
import 'rxjs/add/operator/map';

    @Injectable({
      providedIn: 'root'})
    export class DataServiceService {
      constructor(public http:HttpClientModule) {}
      getPersone(){
        return this.http.get('https://jsonplaceholder.typicode.com/users').map(res=>res.json);
      }
    }

app.module.ts

import { BrowserModule } from '@angular/platform-browser';
import { NgModule } from '@angular/core';
import { FormsModule } from '@angular/Forms';
import {DataServiceService} from './services/data-service.service' ;
//import { HttpModule } from '@angular/Http';
import { HttpClientModule } from '@angular/common/http';

import { AppComponent } from './app.component';
import { NajibComponent } from './components/najib/najib.component';
import { EventsComponent } from './components/events/events.component';
import { CeventsComponent } from './components/cevents/cevents.component';
import { FormsComponent } from './components/forms/forms.component';
import { SComponentComponent } from './components/s-component/s-component.component';
import { from } from 'rxjs';
import { Server } from 'net';

@NgModule({
  declarations: [
    AppComponent,
    NajibComponent,
    EventsComponent,
    CeventsComponent,
    FormsComponent,
    SComponentComponent
  ],
  imports: [
    BrowserModule,
    FormsModule,
   // HttpModule
   HttpClientModule

  ],
  providers: [],
  bootstrap: [AppComponent]

})
export class AppModule { }

s-component.component.ts

import { Component, OnInit } from '@angular/core';
import { DataServiceService } from '../../services/data-service.service';

@Component({
  selector: 'app-s-component',
  templateUrl: './s-component.component.html',
  styleUrls: ['./s-component.component.css']
})
export class SComponentComponent implements OnInit {

  users:any[]=[];
  constructor(public dataService:DataServiceService) {
  this.dataService.getPersone().subscribe(users=>{
        this.users=users;
  });
   }
  ngOnInit() {
  }
}

s-component.component.html

<div class="container">
<p>s-component works!</p>

    <ul >
        <li *ngFor="let item of users">
            {{ item.id }}
        </li>
    </ul>

</div>

最佳答案

您需要使用constructor(private http: HttpClient)

在您的DataServiceService中：

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

并在constructor中注入相同内容。

您应该将HttpClient注入服务而不是HttpClientModule中的DataServiceService。

关于javascript - this.http.get不是angular8函数，我们在Stack Overflow上找到一个类似的问题：https://stackoverflow.com/questions/57205921/