我和KSOAP幽会过;我选择了一个相当简单的方法。

给定一个WSDL文件，为每个请求创建SOAP请求模板(例如:使用SOAP UI)，然后替换要在代码中传递的值。使用DefaultHttpClient实例将此数据发送到服务端点并获得响应流。使用XML Pull解析器解析响应流。

调用ksoap2方法。它工作得很好。

设置细节，比如

private static String mNAMESPACE=null;
private static String mURL=null;
public static Context context=null;
SoapSerializationEnvelope envelope = new SoapSerializationEnvelope(SoapEnvelope.VER11);
envelope.dotNet = true;
envelope.setOutputSoapObject(Request);

envelope.addMapping(mNAMESPACE, "UserCredentials",new UserCredendtials().getClass());
AndroidHttpTransport androidHttpTransport = new AndroidHttpTransport(mURL);

然后得到结果做

androidHttpTransport.call(SOAP_ACTION, envelope);
result = (SoapPrimitive)envelope.getResponse();

不要忘记在您的项目中添加ksoap2.jar，并添加 AndroidManifest文件中的INTERNET权限

import org.ksoap2.SoapEnvelope;
import org.ksoap2.serialization.PropertyInfo;
import org.ksoap2.serialization.SoapObject;
import org.ksoap2.serialization.SoapPrimitive;
import org.ksoap2.serialization.SoapSerializationEnvelope;
import org.ksoap2.transport.HttpTransportSE;
import android.app.Activity;
import android.os.Bundle;
import android.widget.TextView;

public class WebserviceActivity extends Activity {

    private static final String NAMESPACE = "https://api.authorize.net/soap/v1/";
    private static final String URL ="https://apitest.authorize.net/soap/v1/Service.asmx?wsdl"; 
    private static final String SOAP_ACTION = "https://api.authorize.net/soap/v1/AuthenticateTest";
    private static final String METHOD_NAME = "AuthenticateTest";
    private TextView lblResult;


    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.main);

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

        SoapObject request = new SoapObject(NAMESPACE, METHOD_NAME); 
        request.addProperty("name","44vmMAYrhjfhj66fhJN");
        request.addProperty("transactionKey","9MDQ7fghjghjh53H48k7e7n");
        SoapSerializationEnvelope envelope = new SoapSerializationEnvelope(SoapEnvelope.VER11); 
        envelope.setOutputSoapObject(request);
        HttpTransportSE androidHttpTransport = new HttpTransportSE(URL);
        try {
            androidHttpTransport.call(SOAP_ACTION, envelope);

            //SoapPrimitive  resultsRequestSOAP = (SoapPrimitive) envelope.getResponse();
            // SoapPrimitive  resultsRequestSOAP = (SoapPrimitive) envelope.getResponse();
            SoapObject resultsRequestSOAP = (SoapObject) envelope.bodyIn;


            lblResult.setText(resultsRequestSOAP.toString());
            System.out.println("Response::"+resultsRequestSOAP.toString());


        } catch (Exception e) {
            System.out.println("Error"+e);
        }

    }
}

默认情况下，Android SDK中包含defaulthttpclient。这将使您连接到WSDL。

HttpClient httpClient = new DefaultHttpClient();
HttpContext localContext = new BasicHttpContext();
HttpGet httpGet = new HttpGet("http://www.example.com/" + URL);
HttpResponse response = httpClient.execute(httpGet, localContext);

的确，由于开销过大，SOAP并不是与移动设备进行数据交换的最佳选择。但是，您可能会发现自己处于无法控制服务器输出格式的情况。

所以，如果你必须坚持使用SOAP，这里有一个为Android打补丁的kSOAP2库: http://code.google.com/p/ksoap2-android/

要从移动设备(尤其是Android手机)调用web服务，我使用了一种非常简单的方法。我没有使用任何web服务客户端API试图调用web服务。我打电话的方法如下。

Create a simple HTTP connection by using the Java standard API HttpURLConnection. Form a SOAP request. (You can make help of SOAPUI to make a SOAP request.) Set doOutPut flag as true. Set HTTP header values like content-length, Content type, and User-agent. Do not forget to set Content-length value as it is a mandatory. Write entire the SOAP request to the output stream. Call the method to make a connection and receive the response (In my case I used getResonseCode). If your received response code as It means you are succeeded to call web service. Now take an input stream on the same HTTP connection and receive the string object. This string object is a SOAP response. If the response code is other than 200 then take a ErrorInput stream on same HTTPobject and receive the error if any. Parse the received response using SAXParser (in my case) or DOMParaser or any other parsing mechanism.

我已经在Android手机上实现了这个过程，并且它正在成功运行。我能够解析响应，即使它超过700 KB。