httpTransport.call（SOAP_ACTION，envelope）;此行是给java.io.IOException异常的原因是什么

Question

我有这样的错误：

java.io.ioException 

当我执行这一行

httpTransport.call(SOAP_ACTION, envelope); 

的原因是什么......？任何人都可以帮我吗？

从昨天开始我一直在尝试这种方式，但我仍然失败。

谢谢！

Answer 1

SoapObject object=new SoapObject(NAMESPACE, METHOD_NAME); 
     object.addProperty("data", "123");// tis value u wil get frm web service it may change  
     envelope=new SoapSerializationEnvelope(SoapEnvelope.VER11); 
     envelope.dotNet=true; 
     envelope.setOutputSoapObject(object); 
     try { 
      HttpTransportSE htp=new HttpTransportSE(URL); 
      htp.call(SOAP_ACTION,envelope); 
      SoapPrimitive resultString=(SoapPrimitive) envelope.getResponse(); 
      String server_acknowledgement=resultString.toString(); 
      } 
     catch (Exception e) { 
      // TODO: handle exception 
      exceptionArise=true; 
      e.printStackTrace(); 
     }