android - 如何在ionic2中重新加载api url

Question

将数据发布到 api url 后。我想刷新 api url 以获取最后更新的数据

我是这样称呼自己的

this.http.get('api url here',{headers: headers}).map(res => res.json()).subscribe(data => {
                this.items=data;
            },
            err => {
                console.log('Err!')
            });

请给点建议

Answer 1

试试这个:

添加提供者:

 @Injectable()
 export class ServiceProvider {

 baseUrl: string = 'https://...';

 constructor(public http: Http) {
  this.http = http;
 }

 getPosts(){
 return this.http.get(this.baseUrl)
  .map(res => res.json())
  .toPromise();// executa uma function e retorna JSON
 }

然后在首页:

 ngOnInit(){
   this.getPostsSite();
 }

 getPostsSite(){
   this.serviceProvider.getPosts().then(
     response => { 
       this.items = response.data.children
   });

 }