java调用c#开发的webservice为什么传入的参数为空

java调用c#开发的webservice为什么传入的参数为空，在本地点击调用却可以正常传参，请大侠指点，谢谢！ --------------------编程问答-------------------- 你用什么方式调用的webservice？POST 还是 SOAP ？ --------------------编程问答-------------------- SOAP --------------------编程问答-------------------- java调用c#开发的webservice为什么传入的参数为空，在本地点击调用却可以正常传参，请大侠指点，谢谢！

这是net的代码
public class Service : System.Web.Services.WebService
{
    public Service () {

        //如果使用设计的组件，请取消注释以下行
        //InitializeComponent();
    }

    [WebMethod]
    public string HelloWorld(string arg0,string arg1) {
        return arg0+"-Hello World-"+arg1;
    }

    [WebMethod]
    public string HelloWorld2()
    {
        return  "-Hello ytWorld-";
    }

}

java调用的代码
public static String GetWS2(String s1,String s2)
    {
     String output= "";
     try {
       String endpoint="http://localhost:31380/ws2/Service.asmx";
       Service service = new Service();
       Call call = (Call)service.createCall();
       call.setTargetEndpointAddress(new java.net.URL(endpoint));
       call.setOperationName(new QName("http://tempuri.org","HelloWorld"));
       call.addParameter(new QName("http://tempuri.org","arg0"),org.apache.axis.encoding.XMLType.XSD_STRING,javax.xml.rpc.ParameterMode.IN);
       call.addParameter(new QName("http://tempuri.org","arg1"),org.apache.axis.encoding.XMLType.XSD_STRING,javax.xml.rpc.ParameterMode.IN);

       call.setUseSOAPAction(true);
       call.setReturnType(org.apache.axis.encoding.XMLType.XSD_STRING);

       call.setSOAPActionURI("http://tempuri.org/HelloWorld");
       Object[] s = new Object[]{s1,s2};
       output=(String)call.invoke(new Object[]{"df","fff"});
       System.out.println( "result is " + output + ".");

       }
       catch (Exception e) {System.err.println(e.toString());}
       return output;
     } --------------------编程问答--------------------
找到问题了，你自己看看吧：
http://www.cnblogs.com/ucetgg/archive/2009/06/23/1509668.html
http://www.cnblogs.com/mmmjiang13/archive/2011/04/07/2007629.html --------------------编程问答-------------------- 谢谢isjoe，按你给的帖子修改了代码，可是还是传入参数为空 --------------------编程问答-------------------- 大家看看http://localhost:31380/ws2/Service.asmx?WSDL 有问题没
<?xml version="1.0" encoding="utf-8" ?>
- <wsdl:definitions xmlns:soap="http://schemas.xmlsoap.org/wsdl/soap/" xmlns:tm="http://microsoft.com/wsdl/mime/textMatching/" xmlns:soapenc="http://schemas.xmlsoap.org/soap/encoding/" xmlns:mime="http://schemas.xmlsoap.org/wsdl/mime/" xmlns:tns="http://tempuri.org/" xmlns:s="http://www.w3.org/2001/XMLSchema" xmlns:soap12="http://schemas.xmlsoap.org/wsdl/soap12/" xmlns:http="http://schemas.xmlsoap.org/wsdl/http/" targetNamespace="http://tempuri.org/" xmlns:wsdl="http://schemas.xmlsoap.org/wsdl/">
  <wsdl:types />
- <wsdl:message name="HelloWorldSoapIn">
  <wsdl:part name="arg0" type="s:string" />
  <wsdl:part name="arg1" type="s:string" />
  </wsdl:message>
- <wsdl:message name="HelloWorldSoapOut">
  <wsdl:part name="HelloWorldResult" type="s:string" />
  </wsdl:message>
- <wsdl:message name="HelloWorld2SoapIn">
  <wsdl:part name="s" type="s:string" />
  </wsdl:message>
- <wsdl:message name="HelloWorld2SoapOut">
  <wsdl:part name="HelloWorld2Result" type="s:string" />
  </wsdl:message>
- <wsdl:portType name="ServiceSoap">
- <wsdl:operation name="HelloWorld">
  <wsdl:documentation xmlns:wsdl="http://schemas.xmlsoap.org/wsdl/">根据产品编号查询产品的价格</wsdl:documentation>
  <wsdl:input message="tns:HelloWorldSoapIn" />
  <wsdl:output message="tns:HelloWorldSoapOut" />
  </wsdl:operation>
- <wsdl:operation name="HelloWorld2">
  <wsdl:input message="tns:HelloWorld2SoapIn" />
  <wsdl:output message="tns:HelloWorld2SoapOut" />
  </wsdl:operation>
  </wsdl:portType>
- <wsdl:binding name="ServiceSoap" type="tns:ServiceSoap">
  <soap:binding transport="http://schemas.xmlsoap.org/soap/http" />
- <wsdl:operation name="HelloWorld">
  <soap:operation soapAction="http://tempuri.org/HelloWorld" style="rpc" />
- <wsdl:input>
  <soap:body use="literal" namespace="http://tempuri.org/" />
  </wsdl:input>
- <wsdl:output>
  <soap:body use="literal" namespace="http://tempuri.org/" />
  </wsdl:output>
  </wsdl:operation>
- <wsdl:operation name="HelloWorld2">
  <soap:operation soapAction="http://tempuri.org/HelloWorld2" style="rpc" />
- <wsdl:input>
  <soap:body use="literal" namespace="http://tempuri.org/" />
  </wsdl:input>
- <wsdl:output>
  <soap:body use="literal" namespace="http://tempuri.org/" />
  </wsdl:output>
  </wsdl:operation>
  </wsdl:binding>
- <wsdl:binding name="ServiceSoap12" type="tns:ServiceSoap">
  <soap12:binding transport="http://schemas.xmlsoap.org/soap/http" />
- <wsdl:operation name="HelloWorld">
  <soap12:operation soapAction="http://tempuri.org/HelloWorld" style="rpc" />
- <wsdl:input>
  <soap12:body use="literal" namespace="http://tempuri.org/" />
  </wsdl:input>
- <wsdl:output>
  <soap12:body use="literal" namespace="http://tempuri.org/" />
  </wsdl:output>
  </wsdl:operation>
- <wsdl:operation name="HelloWorld2">
  <soap12:operation soapAction="http://tempuri.org/HelloWorld2" style="rpc" />
- <wsdl:input>
  <soap12:body use="literal" namespace="http://tempuri.org/" />
  </wsdl:input>
- <wsdl:output>
  <soap12:body use="literal" namespace="http://tempuri.org/" />
  </wsdl:output>
  </wsdl:operation>
  </wsdl:binding>
- <wsdl:service name="Service">
- <wsdl:port name="ServiceSoap" binding="tns:ServiceSoap">
  <soap:address location="http://localhost:31380/ws2/Service.asmx" />
  </wsdl:port>
- <wsdl:port name="ServiceSoap12" binding="tns:ServiceSoap12">
  <soap12:address location="http://localhost:31380/ws2/Service.asmx" />
  </wsdl:port>
  </wsdl:service>
  </wsdl:definitions> --------------------编程问答-------------------- 再次顶起，达人给解决下，谢谢了 --------------------编程问答-------------------- 怎么解决的，最近也遇到这问题，郁闷中。

补充：.NET技术 ,  Web Services