相关疑难解决方法(0)

我使用的是使用XML而不是JSON的API.有关如何将以下XML转换为JSON或如何在ngFor指令中正确使用数据的任何建议？

此外,观察是否适合这里？

<case-file>
  <serial-number>123456789</serial-number>
    <transaction-date>20150101</transaction-date>
      <case-file-header>
       <filing-date>20140101</filing-date>
      </case-file-header>
 // ...
   <classifications>
  <classification>
   <international-code-total-no>1</international-code-total-no>
   <primary-code>025</primary-code>
  </classification>
 </classifications>
 </case-file>
 <case-file>
     <serial-number>234567890</serial-number>
    <transaction-date>20160401</transaction-date>
      <case-file-header>
       <filing-date>20160401</filing-date>
      </case-file-header>
//...
   <classifications>
  <classification>
   <international-code-total-no>1</international-code-total-no>
   <primary-code>042</primary-code>
  </classification>
 </classifications>
</case-file>

export class apiService {
   constructor (private http: Http) {}

   private _apiUrl = 'app/api';  

   getCaseFile () {
     return this.http.get(this._apiUrl)
//conversion to JSON here?
                    .map(res => <CaseFile[]> res.json().data)
                     .catch(this.handleError);
   }
    private handleError (error: Response) {

     console.error(error);
    return Observable.throw(error.json().error || 'Server error');
   }
 }

<div *ngFor="#cf of case-file">{{case-file.serial-number}}</div>