1
我试图显示来自firebase的数据,当点击一个按钮但它不显示。以下是我写的3个文件。来自firebase的数据没有显示角度2测试版
firebase.service.ts
import { Injectable } from 'angular2/core';
import { Http, Response } from 'angular2/http';
const myFirebase = 'https://*****.firebaseio.com';
@Injectable()
export class FirebaseService {
constructor(private _http: Http) {}
getPages() {
return this._http.get(myFirebase + '/pages_name.json')
.map((res:Response) => res.json());
}
}
app.component.ts
import { Component } from 'angular2/core';
import { FirebaseService } from '../../../firebase.service';
@Component({
selector: 'app',
template: require('./app.template.html'),
providers: [
FirebaseService
]
})
export class LoginTest {
public pages;
constructor(private _firebaseService: FirebaseService) {}
onGetPages() {
this._firebaseService.getPages()
.subscribe(
data => { this.pages = data},
error => console.log(error)
);
}
}
app.template.html
<div class="fixed_width" id="sec2_holder">
<div id="get-pages">
<h2 style="color: white">Get Pages</h2>
<button (click)="onGetPages()">Get Pages</button>
</div>
<ul>
<li *ngFor="#page of pages">{{page.name}}</li>
</ul>
</div>
他re是我的firebase中的分支: pages in firebase
我的代码有什么问题吗?
您使用的是什么版本的'angular2'? – PierreDuc
我正在使用2.0.0-beta.15 – Yin
除此之外,建议您更新,您是否可以将'data => {this.pages = data}'更改为'data => {console.log(data)}' ,并在你的回答中添加输出 – PierreDuc