Accessing an ASP.NET Web Service from Java

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ASP.NET

Java

Hi guys,

I'm trying to pass a variable to a simple ASP.NET 4.0 Web Service and get it to return the value, but I'm having no luck. I've been on this for 4 days now, browsed a lot of articles (including articles on this site) but I'm still no closer to the answer.

Here is my simple Web Service:

using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.Services;
using System.Web.Services.Protocols;

namespace WebApplication2
{
    [WebService(Namespace = "http://tempuri.org/")]
    [SoapDocumentService(RoutingStyle = SoapServiceRoutingStyle.RequestElement)]
    [WebServiceBinding(ConformsTo = WsiProfiles.BasicProfile1_1)]
    [System.ComponentModel.ToolboxItem(false)]
    public class WebService1 : System.Web.Services.WebService
    {
        [WebMethod(MessageName = "HelloWorld")]
        public string HelloWorld(string myReturnString)
        {
            return "this is the returned parameter text from my web service : " + myReturnString;
        }
    }
}

And here is my Java class:

import org.apache.axis.client.Call;
import org.apache.axis.client.Service;
import javax.xml.namespace.QName;
import javax.xml.rpc.ParameterMode;

public class WebService1
{
        private static String ENCODING_STYLE_PROPERTY =
 "javax.xml.rpc.encodingstyle.namespace.uri";
    private static String NS_XSD =
 "http://www.w3.org/2001/XMLSchema";
    private static String URI_ENCODING =
 "http://schemas.xmlsoap.org/soap/encoding/";
    private static QName QNAME_TYPE_STRING = new QName(NS_XSD, "string");
    public static void main(String[] args)
    {
        try
        {
            Service service = new Service();
            Call call = (Call) service.createCall();
                    call.setTargetEndpointAddress(new java.net.URL(
"http://localhost:2855/WebService1.asmx"));
                    call.setOperationName(new QName("http://tempuri.org/","HelloWorld"));
                    call.setProperty(Call.SOAPACTION_USE_PROPERTY,
new Boolean(true));
                    call.setProperty(Call.SOAPACTION_URI_PROPERTY, "");
                    call.setProperty(ENCODING_STYLE_PROPERTY,
URI_ENCODING);
                    call.setReturnType(QNAME_TYPE_STRING);
                    call.addParameter("myReturnString", QNAME_TYPE_STRING,ParameterMode.IN);
                    String[] params = { "some value" };
                    String result = (String)call.invoke(params);
            System.out.println("\n" + result);
        }
        catch (Exception e)
        {
            e.printStackTrace();
        }
    }
}

What's infuriating is that it connects to the service fine, but when it returns, it only returns the text "this is the returned parameter text from my web service : " and my parameter always returns null. Why won't it pick up my parameter? I'm sure there's just a simple setting missing or something but I can't see what it is. :confused:

Many thanks in advance for your help


Nick