以下示例演示了一个简单的HTTP GET请求。返回具有方法的。这将返回的数据追加到数组。http.get()Observablesubscribeposts
var posts = [] getPosts(http: Http):void { this.http.get(`https://jsonplaceholder.typicode.com/posts`) .map(response => response.json()) .subscribe(post => posts.push(post)); }