从android emulator调用asp.net web服务时出错

我无法通过android代码调用我的asp.net Web服务。它抛出错误并关闭应用程序，表示遗憾的是WebServiceSample已停止工作。我找不到原因

我有一个asp.net Web服务，它接受2个数字作为输入，执行加法并返回结果。此webwervice正在本地IIS服务器中运行

The default package is "http://tempuri.org/"  
The url of my web method is "http://192.168.0.109:15700/AddDemo.asmx"      

其中15700是IIS提供的临时端口，AddDemo是我的web方法

当我在浏览器中查看服务时，它工作正常，但当我通过CallWebService.java调用服务时，它不工作。请帮我执行死刑。从android emulator调用本地系统中托管的asp.net web服务需要做一些额外的设置吗

我的CallWebService.java代码如下： 包com.example.webservicesample

import org.ksoap2.SoapEnvelope;
import org.ksoap2.serialization.PropertyInfo;
import org.ksoap2.serialization.SoapObject;
import org.ksoap2.serialization.SoapSerializationEnvelope;
//import org.ksoap2.transport.AndroidHttpTransport;
import org.ksoap2.transport.HttpTransportSE;

public class CallWebService
{
String namespace = "http://tempuri.org/";
private String url = "http://192.168.0.106:15700/AddDemo.asmx";

String res;

String SOAP_ACTION;
SoapObject request = null, objMessages = null;
SoapSerializationEnvelope envelope;
//AndroidHttpTransport androidHttpTransport;
HttpTransportSE androidHttpTransport;

public CallWebService()
{

}

protected void setEnvelope()
{
    try
    {
        envelope = new SoapSerializationEnvelope(SoapEnvelope.VER11);
        envelope.dotNet = true;
        envelope.setOutputSoapObject(request);
        //androidHttpTransport = new AndroidHttpTransport(url);
        //androidHttpTransport.debug = true;
        androidHttpTransport = new HttpTransportSE(url);
        androidHttpTransport.debug = true;
    }
    catch(Exception e)
    {
        res = "Error in setEnvelope....Details\n "+e.getMessage().toString();
    }
}

public String Add(String methodName,int param1, int param2)
{
    try
    {
        SOAP_ACTION = namespace + methodName;
        request = new SoapObject(namespace, methodName);

        PropertyInfo addData =new PropertyInfo();
        addData.setName("param1");
        addData.setValue(param1);
        addData.setType(Integer.class);
        request.addProperty(addData);

        addData.setName("param2");
        addData.setValue(param2);
        addData.setType(Integer.class);
        request.addProperty(addData);

        setEnvelope();

        try 
        {    
            //SOAP calling webservice
            androidHttpTransport.call(SOAP_ACTION, envelope); 
            res = envelope.getResponse().toString(); 
        } 
        catch (Exception e) 
        {
            res = "Error in Add method's 2nd catch block. Details "+e.getMessage().toString();
        }
    }
    catch(Exception e)
    {
        res = "Error in Add method's first catch block. Details "+e.getMessage().toString();
    }
    return res;
}
}

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请有人为此提供解决方案。我试着在这里搜索了很多次，但无法找出我到底遗漏了什么…您需要在logcat输出中查找错误堆栈跟踪。