问如何从MySQL收集数据用了显示一页的角度问题？

EN

import { Component, Directive } from '@angular/core';
import { FormGroup, FormControl } from '@angular/forms';
import { Http, Response, Headers } from '@angular/http';
import { Router, ActivatedRoute, Params } from '@angular/router';

@Component({
  selector: 'app-room-details',
  templateUrl: './room-details.component.html',
  styleUrls: ['./room-details.component.css']
})
export class RoomDetailsComponent {
    public sobe: any = [];
  http: Http;
  router: Router;
  route: ActivatedRoute;
  data: Object[];
  public id: string;
  constructor(route: ActivatedRoute, http: Http, router: Router) {
  this.http = http;
  this.router = router;
  this.route = route;
  }
  ngOnInit() {

 this.id = this.route.snapshot.paramMap.get('id');
let hisid=+this.id;
console.log(hisid);
  let headers = new Headers();
  headers.append('Content-Type', 'application/x-www-form-urlencoded');
  headers.append("token",localStorage.getItem("token"));
  this.http.get('http://localhost/it255/getroom.php?id='+hisid,{headers:headers}).subscribe( data => {
       this.room = JSON.parse(data['_body']).rooms;
      console.log(this.room);

},
err=> {  alert("No rooms");});

}}

<table class="table" align="center">
  <thead>
    <tr>
      <th>Name</th>
      <th>Num beds</th>
      <th>TV</th>
    </tr>
  </thead>
  <tbody>

        <tr  *ngIf="room">

            <td>{{room.roomname}}</td>
            <td>{{room.beds}}</td>
            <td>
                <span *ngIf="room.tv == '1'">
                TV: Yes
                 </span>
            <span *ngIf="room.tv != '1'">
                    TV: No
            </span>
        </td>

        </tr>
  </tbody>