尝试连接到webservice GetCountryByCountryCode时获取XmlPullParserException

我在尝试连接到webservice时获得此输出

org.xmlpull.v1.XmlPullParserException： 意外类型（位置：结束文档） null@1：0 i[0.0]n java.io。InputStreamReader@6cf4fb80)

package com.rim.SoapRequest；
导入net.rim.device.api.io.parser.soap.SOAPBody；
导入org.ksoap2.SoapEnvelope；
导入org.ksoap2.serialization.SoapObject；
导入org.ksoap2.serialization.SoapSerializationEnvelope；
导入org.ksoap2.transport.HttpTransport；
公共类TSOAPRequest
{   
公共字符串fnSendRequest（字符串strServerUrl、字符串strServiceNamespace、字符串strSoapAction、字符串strMethodName、字符串strLabelText）
{
System.out.println（“内部方法！！！！！！！”；
字符串strRequestData=“”；
SoapObject OSOAbObject=新的SoapObject（strServiceNamespace，strMethodName）；
SoapSerializationEnvelope oSoapEnvelope=新的SoapSerializationEnvelope（SoapEnvelope.VER11）；
//osoabObject.addProperty（“GetCountryByCountryCode”，strLabelText）；
osoabObject.addProperty（“国家代码”，strLabelText）；
osoapenvelop.bodyOut=osoabObject；
osoapenvelop.dotNet=true；
oSoapEnvelope.encodingStyle=SoapSerializationEnvelope.XSD；
oSoapEnvelope.enc=SoapSerializationEnvelope.enc；
System.out.println（“soap对象！！！！！！！\uuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuu；
System.out.println（“soap信封！！！！+OSOApenvelop.toString（））；
HttpTransport HttpTransport=新的HttpTransport（strServerUrl）；
httpTransport.setXmlVersionTag（“”）；
httpTransport.debug=true；
System.out.println（“-----------在TRY块之前…”）；
尝试
{
httpTransport.call（strSoapAction，osoapenvelop）；
System.out.println（“内部试块……）；
strRequestData=（oSoapEnvelope.getResponse（））.toString（）+“内部尝试…”；
}
捕获（例外e）
{
e、 printStackTrace（）；
strRequestData=e.toString（）+“异常！！！！！！！！！！！！！！！！！！！！！！！！！！！！！！！”；
}       
System.out.println（“请求数据===”+strRequestData）；
//System.out.println（“请求转储====”+httpTransport.requestDump）；
//strRequestData=httpTransport.requestDump+“=============DUMP==========”；
System.out.println（“===转储报告为=====”+httpTransport.requestDump）；
返回strRequestData；
}
}

从我的主屏幕，我使用这个方法调用将国家代码传递给methods

oTsoapRequest.fnSendRequest（“http://www.webservicex.net/country.asmx","http://www.webserviceX.NET","http://www.webservicex.net/country.asmx/GetCountryByCountryCode“，“GetCountryByCountryCode”，m_oZipCodeEditField.getText（））

请帮我摆脱这个例外

package com.rim.SoapRequest;

import net.rim.device.api.io.parser.soap.SOAPBody;

import org.ksoap2.SoapEnvelope;
import org.ksoap2.serialization.SoapObject;
import org.ksoap2.serialization.SoapSerializationEnvelope;
import org.ksoap2.transport.HttpTransport;

public class TSOAPRequest
{   

    public String fnSendRequest(String strServerUrl,String strServiceNamespace,String strSoapAction,String strMethodName,String strLablelText)
    {
        System.out.println("inside method !!!!!!!!");

        String strRequestData = "";

        SoapObject oSoapObject = new SoapObject(strServiceNamespace, strMethodName);
        SoapSerializationEnvelope oSoapEnvelope = new SoapSerializationEnvelope(SoapEnvelope.VER11);
//      oSoapObject.addProperty("GetCountryByCountryCode",strLablelText);
        oSoapObject.addProperty("CountryCode",strLablelText);
        oSoapEnvelope.bodyOut = oSoapObject;
        oSoapEnvelope.dotNet = true;
        oSoapEnvelope.encodingStyle = SoapSerializationEnvelope.XSD;
        oSoapEnvelope.enc = SoapSerializationEnvelope.ENC;

        System.out.println("soap Object !!!!!!________"+oSoapObject.toString());
        System.out.println("soap envelope !!!!++++++"+oSoapEnvelope.toString());

        HttpTransport httpTransport = new HttpTransport(strServerUrl);
        httpTransport.setXmlVersionTag("<?xml version=\"1.0\" encoding=\"UTF-8\"?>");   
        httpTransport.debug = true; 
        System.out.println("---------BEFORE TRY BLOCK....");
        try
        {
            httpTransport.call(strSoapAction, oSoapEnvelope);
            System.out.println("INSIDE TRY BLOCK.......");
            strRequestData = (oSoapEnvelope.getResponse()).toString()+"inside try........";         
        }
        catch (Exception e)
        {
            e.printStackTrace();
            strRequestData = e.toString()+"Exception!!!!!!!!!!!!!!!!!!!!!";
        }       
        System.out.println("Request Data======" + strRequestData);
//      System.out.println("request dump ========"+httpTransport.requestDump);

//      strRequestData = httpTransport.requestDump+"=======DUMP=======";
        System.out.println("====dump report is=============="+httpTransport.requestDump);

        return strRequestData;
    }
}