Question

我尝试从此网址获取数据：https://api.chucknorris.io/jokes/search?query=chuck （查克是搜索词，它可以是其他任何东西）。

我想从数组中获取value属性。邮差得到了我：

LC_TIME

我的服务（已编辑）：

     boolean foundAny = false;
     T result = null;
     for (T element : this stream) {
         if (!foundAny) {
             foundAny = true;
             result = element;
         }
         else
             result = accumulator.apply(result, element);
     }
     return foundAny ? Optional.of(result) : Optional.empty();

组分（编辑）：

{
"total": 9735,
"result": [
{
  "category": [
    "dev"
  ],
  "icon_url": "https://assets.chucknorris.host/img/avatar/chuck-norris.png",
  "id": "zdj0bfkjsmup6pkb2rpmbw",
  "url": "http://api.chucknorris.io/jokes/zdj0bfkjsmup6pkb2rpmbw",
  "value": "Chuck Norris is the only human being to display the Heisenberg 
  uncertainty principle - you can never know both exactly where and how 
  quickly he will roundhouse-kick you in the face."
 },

我有代表对象的类：

import { HttpModule } from '@angular/http';
import { Injectable } from '@angular/core';
import { Http } from '@angular/http';
import 'rxjs/add/operator/map';
import { Joke } from '../joke'

@Injectable()
export class PretragaService {
constructor(private http: Http){}
searchJokes(str: string){return 
this.http.get('https://api.chucknorris.io/jokes/search?query=' + str)
                    .map(res => res.json())
                    .map(joke => {return joke.value});
}

}

}

Answer 1

//修改myService类：

    searchJokes(str: string){return 
    this.http.get('https://api.chucknorris.io/jokes/search?query=' + str)
                        .map(res => res.json())
                        .map(joke => {return joke.value});
    }

//和组件：

    searchJoke: string;
    searchRes: any[]=[];

    constructor(private searchService: PretragaService){

    }
    searchJokes(){
       this.searchService.searchJokes(this.searchJoke)
       .subscribe(joke => {
       this.searchRes = joke;
    });

从查询字符串中获取数据

1 个答案: