如果可以，选择JSON。Android自带完整的组织。json包

要从android调用SOAP web服务，请尝试使用此客户端

不要忘记在java构建路径中添加ksoap2-android.jar

public class WsClient {
    private static final String SOAP_ACTION = "somme";
    private static final String OPERATION_NAME = "somme";
    private static final String WSDL_TARGET_NAMESPACE = "http://example.ws";
    private static final String SOAP_ADDRESS = "http://192.168.1.2:8080/axis2/services/Calculatrice?wsdl";

    public String caclculerSomme() {

        String res = null;
        SoapObject request = new SoapObject(WSDL_TARGET_NAMESPACE,
                OPERATION_NAME);
        request.addProperty("a", "5");
        request.addProperty("b", "2");

        SoapSerializationEnvelope envelope = new SoapSerializationEnvelope(
                SoapEnvelope.VER11);
        envelope.dotNet = true;
        envelope.setOutputSoapObject(request);
        HttpTransportSE httpTransport = new HttpTransportSE(SOAP_ADDRESS);

        try {
            httpTransport.call(SOAP_ACTION, envelope);
            String result = envelope.getResponse().toString();
            res = result;
            System.out.println("############# resull is :" + result);
        } catch (Exception exception) {
            System.out.println("########### ERRER" + exception.getMessage());
        }

        return res;
    }
}

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();

如果你可以使用JSON，有一个白皮书，一个视频和示例。使用PHP服务器和Android手机客户端开发应用程序服务中的代码。

我相信您可以用Axis创建一个小型SOAP客户机。轴安装说明。

请下载并添加SOAP库文件与您的项目 文件名称:ksoap2-android-assembly-3.4.0-jar-with-dependencies

清理应用程序，然后启动程序

下面是SOAP服务调用的代码

    String SOAP_ACTION = "YOUR_ACTION_NAME";
    String METHOD_NAME = "YOUR_METHOD_NAME";
    String NAMESPACE = "YOUR_NAME_SPACE";
    String URL = "YOUR_URL";
    SoapPrimitive resultString = null;

    try {
        SoapObject Request = new SoapObject(NAMESPACE, METHOD_NAME);
        addPropertyForSOAP(Request);

        SoapSerializationEnvelope soapEnvelope = new SoapSerializationEnvelope(SoapEnvelope.VER11);
        soapEnvelope.dotNet = true;
        soapEnvelope.setOutputSoapObject(Request);

        HttpTransportSE transport = new HttpTransportSE(URL);

        transport.call(SOAP_ACTION, soapEnvelope);
        resultString = (SoapPrimitive) soapEnvelope.getResponse();

        Log.i("SOAP Result", "Result Celsius: " + resultString);
    } catch (Exception ex) {
        Log.e("SOAP Result", "Error: " + ex.getMessage());
    }
    if(resultString != null) {
        return resultString.toString();
    }
    else{
        return "error";
    }

结果可能是JSONObject或JSONArray或String

为方便参考， https://trinitytuts.com/load-data-from-soap-web-service-in-android-application/

谢谢。