Angular 6 HTTP使用HTTP基本身份验证获取请求

请参阅https://angular.io/guide/http或https://v6.angular.io/guide/http#adding-
headers

import { HttpHeaders } from '@angular/common/http';const httpOptions = {  headers: new HttpHeaders({    'Content-Type':  'application/json',    'Authorization': 'Basic ' + btoa('username:password')  })};

然后使用标题：

return this.http.get<AObjects[]>(this.postsURL, httpOptions);