android  ksoap2调用.net Webservice 方法直接放到一个类里：

package com.util;

import org.ksoap2.SoapEnvelope;

import org.ksoap2.serialization.SoapObject;

import org.ksoap2.serialization.SoapSerializationEnvelope;

import org.ksoap2.transport.HttpTransportSE;

public class AsmxUtil

{

	private String SOAP_ACTION = "";

	private String NAMESPACE = "http://tempuri.org/";

	private String METHOD_NAME = "";

	private String ServiceURL = "";

	SoapObject request =null;

	public AsmxUtil(String serviceurl, String methodName)

	{

		// 建立webservice连接对象

		ServiceURL = serviceurl;

		METHOD_NAME = methodName;

		SOAP_ACTION = NAMESPACE + METHOD_NAME;

		request = new SoapObject(NAMESPACE, METHOD_NAME);

	}

	public void AddProperty(String name, Object v)

	{

		//参数值

		request.addProperty(name, v);

	}

	public String Call() throws Exception

	{

		SoapSerializationEnvelope envelope = new SoapSerializationEnvelope(SoapEnvelope.VER11);

		// soap协议版本必须用SoapEnvelope.VER11（Soap V1.1）

    	envelope.bodyOut = request;

    	envelope.dotNet=true;

    	//对dotnet webservice协议的支持,如果dotnet的webservice

    	//不指定rpc方式则用true否则要用false 

    	HttpTransportSE ht = new HttpTransportSE(ServiceURL);

    	ht.debug = true;

    	try {

    		ht.call(SOAP_ACTION, envelope);

    		if (envelope.getResponse() != null)

    		{

    			String msg = envelope.getResponse().toString();

    			return msg;

    		}

    		else

    		{

    			return "error";

    		}

    	}

		catch (Exception e) {

    		throw new Exception(e.getMessage());

		}

	}

}

调用方法：

AsmxUtil au = new AsmxUtil("http://192.168.111.153/WebService2/Service1.asmx", "HelloWorld");
     au.AddProperty("username","admin");
au.AddProperty("password","123");
        String xst = null;
try {
xst = au.Call();

} catch (Exception e) {
// TODO Auto-generated catch block
e.printStackTrace();
//text1.setText(e.getMessage());
}
 
Toast.makeText(this, xst, Toast.LENGTH_LONG).show();