ksoap2 android打電話，得到null異常

Question

這是我的第一篇文章，關於堆棧溢出， 嗯這是我的問題我是一個開墾機器人，我不得不使用KSOAP2從Web服務獲取數據。所以我覺得這個網絡服務： http://www.w3schools.com/xml/tempconvert.asmx

而我試圖得到的結果只有一個TextView電視; 因此，這裏是我的代碼

final static String SOAP_ACTION = "http://www.w3schools.com/xml/CelsiusToFahrenheit"; 
final static String METHOD = "CelsiusToFahrenheit"; 
final static String URL = "http://www.w3schools.com/xml/tempconvert.asmx"; 
final static String NAME_SPACE = "http://www.w3schools.com/xml/"; 

TextView tv; 

@Override 
protected void onCreate(Bundle savedInstanceState) { 
    super.onCreate(savedInstanceState); 
    setContentView(R.layout.activity_fram_rest); 

    tv = (TextView) findViewById(R.id.myTv); 


    SoapObject request = new SoapObject(NAME_SPACE, METHOD); 


    request.addProperty("Celsius", "32"); 


    SoapSerializationEnvelope soapE = new SoapSerializationEnvelope(SoapEnvelope.VER11); 
    soapE.dotNet = true; 
    soapE.setOutputSoapObject(request); 

    HttpTransportSE AHT = new HttpTransportSE(URL); 
    try { 
     AHT.call(SOAP_ACTION, soapE); 
     tv.setText("done"); 
/*  SoapPrimitive resultString = (SoapPrimitive) soapSerializationEnvelope.getResponse(); 
     tv.setText("statut: " + resultString.toString());*/ 
    } catch (Exception e) { 
     String str = e.getMessage(); 
     tv.setText("statut error: " + str); 
    } 
} 

我使用的Internet的權限，但我得到的異常呼叫（SOAP_ACTION，...）和「Statut錯誤：空」在我的電視

感謝您的幫助！

P.S：我正在使用android studio 2.0！

Answer 1

取而代之的是

HttpTransportSE AHT = new HttpTransportSE(URL); 
    try { 
     AHT.call(SOAP_ACTION, soapE); 
     tv.setText("done"); 
/*  SoapPrimitive resultString = (SoapPrimitive) soapSerializationEnvelope.getResponse(); 
     tv.setText("statut: " + resultString.toString());*/ 
    } catch (Exception e) { 
     String str = e.getMessage(); 
     tv.setText("statut error: " + str); 
    } 

使用這樣的：

HttpTransportSE AHT = new HttpTransportSE(URL); 
try{ 
    AHT,call(SOAP_ACTION, soapE); 
SoapPrimitive response = (SoapPrimitive)soapE.getResponse(); 

tv.setText(Interger.parseInt(response.toString())); 

}catch(Exception e){ 
String msg = e.getMessage();  

}