angular - 使用 Http JSON AngularJS 2 时出错

Question

在尝试了几种无法使它工作的在线教程方法后，我尝试使用以下代码。

..//
import {Http, HTTP_PROVIDERS} from 'angular2/http';

@Component({

    viewProviders: [HTTP_PROVIDERS],

    template: `
    ..//
    <div class="col-md-6 col-md-offset-3 well">

        <input type="button" class="btn btn-success btn-block"
        (click)="get()" value="Fetch Users">

        <hr>
        <ul>
           <li *ngFor="#user of users">
             Id: {{ user.name }} | Name: {{ user.name }} | JSON: {{ user | json }}
           </li>
        </ul>
    </div>

    ..//

export class Mov {

    //Inicio test http

    users: Array<Object>;
    http: any;

    //
    //constructor(@Inject(HttpFactory) http) {
    //constructor(http: Http) {
    constructor(http: Http){
         //
        this.http = http;
    }

    get(){
        this.http('resources/users.json')
        .map(res => res.json())
        .subscribe(users => this.users = users);
    }

得到这个错误:

EXCEPTION: Error during evaluation of "click"

ORIGINAL EXCEPTION: TypeError: this.http is not a function

任何人都可以告诉我我做错了，我为我的英语感到抱歉。

Answer 1

嗯，由于错误消息指出 this.http 不是函数，它是一个具有多个方法的对象。你需要 this.http.get() 方法:

this.http.get('resources/users.json')
    .map(res => res.json())
    .subscribe(users => this.users = users);