问如何创建一个返回json数组的http get请求，该数组将用于填充ngfor指令？

EN

constructor(private router:Router, private rec:RecommendationsService ){}
      ngOnInit(){
        this.rec.getRecommendations().subscribe(
          data=>{
            this.x = JSON.stringify(data);
            alert(this.x);
            this.list = this.x;
          }
        );
      }

import 'rxjs/Rx';

@Injectable()
export class RecommendationsService{

  url="//Users/Daniel/Desktop/Reccomendations.json";

  constructor(private http:Http){};

  getRecommendations(){
    return this.http.get(this.url).map(res => res.json);
  }
}

 <div *ngFor="let item of list, let i = index" data-toggle="modal" data-target="#recModal">
                <div class="row rowTopBuffer rowDiv" (click)="toModal(item.name, item.description, item.recLocLat, item.recLocLong, item.picturePath)">
                    <div class="col-sm-12 col-md-4 titleDiv" >
                        <img class="recommendationImages img-responsive img-rounded" src={{item.picturePath}}>
                    </div>
                    <div class="col-sm-12 col-md-6 descDiv">

                    <p class="itemTitle">{{item.name}}</p>
                    <p id="{{desc+i}}">{{item.description}}</p>

                    </div>
                </div>
            </div>