响应状态:200个url:null-打字稿Angular 2(SOAP服务调用)

Question

我将响应状态作为'200'，但响应为'与状态的响应：for url：null：null'for My nativecript应用程序的soap服务调用。我正在使用帖子方法，示例代码如下所示，

import { Injectable } from 'angular2/core';
import { Http, Request, Response, Headers, RequestMethod, RequestOptions } from 'angular2/http';
import { Observable } from 'rxjs/Observable';
@Injectable()
export class PaymentsService {
private body: string = `<?xml version="1.0" encoding="utf-8"?>
<soap:Envelope xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"   
xmlns:xsd="http://www.w3.org/2001/XMLSchema"    
xmlns:soap="http://schemas.xmlsoap.org/soap/envelope/">
<soap:Body>
<HelloWorld xmlns="http://bernera.zapto.org/" />
</soap:Body>
</soap:Envelope>`;
private result;
constructor(private http: Http) { }
callSOAP() {
var headers = new Headers();
headers.append('Content-Type', 'text/xml');
headers.append('Access-Control-Request-Method', 'POST');
headers.append('Access-Control-Request-Headers', 'X-Custom-Header');
headers.append('Access-Control-Allow-Origin', 'http://localhost:3004');
this.http.post('http://bernera.zapto.org/astronomy/astronomy.asmx',
  this.body,
  { headers: headers })
  .subscribe(
  data => this.result = data,
  err => this.logError(err),
  () => console.log('Call complete')
  );
alert('result ' + this.result);
}
logError(err) {
console.error('There was an error: ' + err.statusText);
alert('There was an error: ' + err.statusText);
}
}

Answer 1

在您的服务器响应后，将您放入subscribe方法中的所有内容都是异步执行的。在您的情况下，您会使用此。填充之前。

this.http.post(whatever_url, this.body, { headers: headers }).subscribe(
   data => {
       this.result = data; 
       alert(this.data); // should return something
   },
   err => this.logError(err),
   () => console.log('Call complete')
);
alert(this.data); // <--- null, you hasn't received the server's response yet