android上使用Soap协议

package XXX;

import org.ksoap2.SoapEnvelope;
import org.ksoap2.serialization.SoapObject;
import org.ksoap2.serialization.SoapSerializationEnvelope;
import org.ksoap2.transport.HttpTransportSE;
import org.xmlpull.v1.XmlPullParserException;

import java.io.IOException;
import java.net.InetSocketAddress;

/**
 * 获取应用XX关系类.
 */
public class OrderRelation {

    /** 命名空间. */
    private final static String NAME_SPACE = "urn:AppBackgroundSpEngine";

    /** 方法. */
    private final static String METHOD_NAME = "appSignRight";

    /** WSDL文件的URL. */
    private final static String WSDL_URL = "http://xxx/services/AppBackgroundSpEngine?wsdl";

    /**
     * <p>
     * 获取应用的XX关系接口
     * </p>
     * 
     * @param in XX关系的输入参数
     * @return XX关系结果
     */
    public static OrderRelationResult fetch(OrderRalationInput in) {
        if(in == null) {
            throw new IllegalArgumentException("Input parameter is null");
        }
        
        final OrderRelationResult result = new OrderRelationResult();
        final SoapObject so = new SoapObject(NAME_SPACE, METHOD_NAME);
        so.addProperty("transId", in.getTransId());
        so.addProperty("mobile", in.getUserId());
        so.addProperty("imsi", in.getImsi());
        so.addProperty("appId", in.getAppId());
        so.addProperty("timeStamp", in.getTimeStamp());
        so.addProperty("clientType", in.getClientType());
        so.addProperty("sig", in.getSig());

        final SoapSerializationEnvelope se = new SoapSerializationEnvelope(SoapEnvelope.VER11);
        se.bodyOut = so;
        final HttpTransportSE ht = new HttpTransportSE(WSDL_URL);
        try {
            ht.call(NAME_SPACE, se);
            final SoapObject response = (SoapObject) se.bodyIn;
            if (response != null) {
                System.out.println("response:"+ response);
                result.setResultCode(Integer.parseInt(response.getPropertyAsString("resultCode")));
                result.setTransId(response.getPropertyAsString("transId"));
                result.setType(Integer.parseInt(response.getPropertyAsString("type")));
            }
        } catch (IOException e) {
            e.printStackTrace();
            return null;
        } catch (XmlPullParserException e) {
            e.printStackTrace();
            return null;
        } catch (NullPointerException e) {
            e.printStackTrace();
            return null;
        }
        return result;
    }
}