相关疑难解决方法(0)

我试图在角度2中内置Http服务的包装器,以便有可能添加自定义行为(标题,参数等)

所以我创建了一个通常的类(不是服务)并从Http继承它. 类定义

import {
  Http,
  ConnectionBackend,
  RequestOptions,
  RequestOptionsArgs,
  Headers
} from '@angular/http';
import { Observable } from 'rxjs/Observable';
import {tamamApiUrl} from '../constants';
import {CustomQueryEncoder} from './CustomQueryEncoder';
import 'rxjs/Rx';

export class BaseHttp extends Http {
  protected applicationDataService;
  protected baseUrl: string = tamamApiUrl;
  protected encoder: CustomQueryEncoder;

  constructor(backend:ConnectionBackend,
              defaultOptions: RequestOptions, applicationDataService: any) {
    super(backend, defaultOptions);
    this.applicationDataService = applicationDataService;
  }


  get(url: string, options?: RequestOptionsArgs): Observable<any> {
    this.addDefaultOptions(options);
    return super.get(url, options);
  }

  post(url: string, body: any, options?: RequestOptionsArgs): Observable<any> {
    this.addDefaultOptions(options);
    this.addDefaultPostOptions(options);
    return super.post(url, …