Android调用一个。 Net WebService

Question

一直试图让Ksoap2调用在vb.net中创建的简单web服务但返回错误，我已经能够追踪我的Android代码，并在响应中发现了这个错误代码，“System.Web.Services.Protocols。 SoapException：服务器无法识别HTTP Header SOAPAction的值“。 当我在浏览器中调用相同的webservice方法时，我注意到实际的SOAP响应不包含SOAP Header，那会是问题的原因吗？

提前感谢任何建议。

private static final String SOAP_ACTION = "http://192.168.1.105/Service1.asmx/TestQuery";

private static final String METHOD_NAME = "TestQuery";

private static final String NAMESPACE = "http://localhost/";

private static final String URL = "http://192.168.1.105/Service1.asmx";

public void call()
{
    try {



        SoapObject request = new SoapObject(NAMESPACE, METHOD_NAME);



        SoapSerializationEnvelope envelope = new SoapSerializationEnvelope(SoapEnvelope.VER12);

        envelope.dotNet=true;

        envelope.setOutputSoapObject(request);

        Toast.makeText(this, METHOD_NAME, Toast.LENGTH_LONG).show();


        HttpTransportSE androidHttpTransport = new HttpTransportSE(URL);

        androidHttpTransport.debug = true;

        TV1.setText("Error: " + androidHttpTransport.requestDump);

        androidHttpTransport.call(SOAP_ACTION, envelope);

        Object result = (Object)envelope.getResponse();

        Toast.makeText(this, result.toString(), Toast.LENGTH_LONG).show();

    } catch (Exception e) {
        Toast.makeText(this, e.getLocalizedMessage(), Toast.LENGTH_LONG).show();
        }
}