javascript - 如何在 typescript 的公共(public)函数中初始化Http导入？

Question

在下面的 Typescript 代码中，我想调用一个需要导入的函数。我可以在类的构造函数中初始化导入，但是如何在公共(public)函数中执行此操作？

import {Http} from "angular2/http";

export class AppComponent {

  constructor( properties.
    public http: Http
    ) {
      this.http.get(...){} //FUNCTION 1: this function works fine

      this.getAll(); //this does not work as FUNCTION 2 does not work
    }

 public getAll = function(){ //FUNCTION 2: this function does not work (cannot find name'http')
      http.get(...){} 
    }

 public otherfunction = function(){
      this.getAll(); //this does not work as FUNCTION 2 does not work
 }

Answer 1

公共(public)属性可通过this(当前实例)引用访问:

public getAll = function() {
  this.http.get(...); 
}