Angular 4：Http转HttpClient，配置

Question

我在 Angular 4 中有以下代码：

constructor(private baseUrl: string, private http: Http) {}

get(url: string, config?: RequestOptionsArgs): Promise<any> {
    return this.http.get(this.prependBaseUrl(url), config)
        .toPromise();
}

我想将它重写为 HttpClient 而不是 Http，所以我修改了注入构造函数的 http 类型，但我不知道（也找不到）如何处理 config?: RequestOptionsArgs .

感谢帮助

Answer 1

尝试基本方法：

导入HttpClientModule并将其添加到imports[]

中的app.module.ts

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

@NgModule({
  imports: [
    BrowserModule,
    // import HttpClientModule after BrowserModule.
    HttpClientModule,
  ],
  declarations: [
    AppComponent,
  ],
  bootstrap: [ AppComponent ]
})
export class AppModule {}

app.service.ts

在组件

中导入HttpClient

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

@Injectable()
export class AppService{
  constructor(private http: HttpClient) { }
getData(): Observable<any>{

    return this.httpClient.get('request_url',RequestOptionsArgs)
    }
}

app.component.ts:

import {AppService} from './app.service.ts';

constructor(private appservice: AppService){
  this.appservice.getData().subscribe(response => {
  console.log(response)
})

Angular 4：Http转HttpClient，配置

Angular 4: Converting Http to HttpClient, config

rest

angular

angular-httpclient