使用k-Soap从Android的Callin Java webservice出错

WebService Code : 
        public boolean authenicateUser(@WebParam(name="username")String username,@WebParam(name="password")String password) {
                System.out.println("Inside Authenticae USER+=========="+name+"-----"+Password);//This becomes null and null
                 final String LOGIN_sql="SELECT * FROM UserDetails WHERE UserName=? and Password=?";

Web服务托管在Localhost Tomcat服务器上

Android Server Request : 
      private static String NAMESPACE = "http://src.AndroidExample.Nagesh.com/";
        private static String URL = "http://192.168.56.1:8080/AndroidLoginWS/LoginWebService?wsdl";
        private static String SOAP_ACTION = "http://src.AndroidExample.Nagesh.com/";
     Systerequest=new SoapObject(NAMESPACE,WebMethodName);
                System.out.println("Values before calling WS"+user.UserName+"------"+user.Password);
                request.addProperty("username",user.UserName);
                request.addProperty("password",user.Password);
                return request;
     SoapSerializationEnvelope envelope = new SoapSerializationEnvelope(
                        SoapEnvelope.VER11);
                envelope.setoutputSoapObject(request);
                HttpTransportSE androidHttpTransport = new HttpTransportSE(URL);
     androidHttpTransport.call(SOAP_ACTION + WebMethodName,envelope);
                    System.out.println("INside InvokeLoginWS==========RETURNED.................");
                    SoapPrimitive response = (SoapPrimitive) envelope.getResponse();
                    loginStatus = Boolean.parseBoolean(response.toString());

WSDL文件是：

This XML file does not appear to have any style information associated with it. The document tree is shown below.
<!--
 Published by JAX-WS RI (http://jax-ws.java.net). RI's version is JAX-WS RI 2.2.10 svn-revision#919b322c92f13ad085a933e8dd6dd35d4947364b. 
-->
<!--
 Generated by JAX-WS RI (http://jax-ws.java.net). RI's version is JAX-WS RI 2.2.10 svn-revision#919b322c92f13ad085a933e8dd6dd35d4947364b. 
-->
<deFinitions xmlns:wsu="http://docs.oasis-open.org/wss/2004/01/oasis-200401-wss-wssecurity-utility-1.0.xsd" xmlns:wsp="http://www.w3.org/ns/ws-policy" xmlns:wsp1_2="http://schemas.xmlsoap.org/ws/2004/09/policy" xmlns:wsam="http://www.w3.org/2007/05/addressing/Metadata" xmlns:soap="http://schemas.xmlsoap.org/wsdl/soap/" xmlns:tns="http://src.AndroidExample.Nagesh.com/" xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns="http://schemas.xmlsoap.org/wsdl/" targetNamespace="http://src.AndroidExample.Nagesh.com/" name="LoginService">
<types>
<xsd:schema>
<xsd:import namespace="http://src.AndroidExample.Nagesh.com/" schemaLocation="http://192.168.56.1:8080/AndroidLoginWS/LoginWebService?xsd=1"/>
</xsd:schema>
</types>
<message name="register">
<part name="parameters" element="tns:register"/>
</message>
<message name="registerResponse">
<part name="parameters" element="tns:registerResponse"/>
</message>
<message name="authenicateUser">
<part name="parameters" element="tns:authenicateUser"/>
</message>
<message name="authenicateUserResponse">
<part name="parameters" element="tns:authenicateUserResponse"/>
</message>
<portType name="LoginMethods">
<operation name="register">
<input wsam:Action="http://src.AndroidExample.Nagesh.com/LoginMethods/registerRequest" message="tns:register"/>
<output wsam:Action="http://src.AndroidExample.Nagesh.com/LoginMethods/registerResponse" message="tns:registerResponse"/>
</operation>
<operation name="authenicateUser">
<input wsam:Action="http://src.AndroidExample.Nagesh.com/LoginMethods/authenicateUserRequest" message="tns:authenicateUser"/>
<output wsam:Action="http://src.AndroidExample.Nagesh.com/LoginMethods/authenicateUserResponse" message="tns:authenicateUserResponse"/>
</operation>
</portType>
<binding name="LoginWSPortBinding" type="tns:LoginMethods">
<soap:binding transport="http://schemas.xmlsoap.org/soap/http" style="document"/>
<operation name="register">
<soap:operation soapAction=""/>
<input>
<soap:body use="literal"/>
</input>
<output>
<soap:body use="literal"/>
</output>
</operation>
<operation name="authenicateUser">
<soap:operation soapAction=""/>
<input>
<soap:body use="literal"/>
</input>
<output>
<soap:body use="literal"/>
</output>
</operation>
</binding>
<service name="LoginService">
<port name="LoginWSPort" binding="tns:LoginWSPortBinding">
<soap:address location="http://192.168.56.1:8080/AndroidLoginWS/LoginWebService"/>
</port>
</service>
</deFinitions>

我是Android和Creating Web Service的新手.我尝试了很多其他解决方案但它似乎不起作用.