Angular 2 http.get with params

我想在GET请求中发送查询参数.我的班级看起来像这样:

 @Injectable()
 export class Loader implements TranslateLoader{
  constructor(private http: Http){
   }
   getTranslation(lang: string): Observable
   {
     return this.http.get(routes.Localization.Get) ;// in that place I need to pass params
   }
 }

我怎样才能做到这一点？

你可以利用这个URLSearchParams类:

getTranslation(lang: string): Observable {
  let params = new URLSearchParams();
  params.set('param1', 'value1');

  return this.http.get(routes.Localization.Get, { search: params });
}

这将导致像这样的URL(参数查询字符串添加)http://...?param1=value1.

请参阅此类的文档:

https://angular.io/docs/ts/latest/api/http/index/URLSearchParams-class.html

它现在提供对编码/解码参数的支持.

这非常简单 - 您可以定义URLSearchParams并在方法的第二个参数中传递它们http.get:

import { URLSearchParams } from '@angular/http'

let params: URLSearchParams = new URLSearchParams();
params.set('param1', 'someValue');
params.set('param2', 'someValue');

return this.http.get(routes.Localization.Get, { search: params });