Re: Client with parameter can`t comunicate with Web Servic e

I noticed that your client uses the parameter names "NumberOne" and
"NumberTwo" (note the upper case 'N') while the .NET Web Method =
signature
uses "numberOne" and "numberTwo" (with a lowercase 'n').  I believe the =
.NET
serialization/deserialization code uses the parameter names as they =
appear
in your code to determine how to deserialize a SOAP message.  If they =
don't
match exactly, then incoming SOAP messages will not be deserialized
correctly.


-----Original Message-----
From: Discussion of implementing SOAP applications today
[mailto:[email protected]] On Behalf Of L=E1zara Camila Generoso =
de
Moraes
Sent: Tuesday, April 13, 2004 4:07 PM
To: [email protected]
Subject: [SOAP] Client with parameter can`t comunicate with Web Service

Hi everyone,

        We are developing a projet that envolves a Java application =
acessing
.Net web services remotly.=20
        Currently this application comunicates to a server that uses =
Java
tecnology and comunicate themselves using RMI. But we wish to convert =
this
server from Java to .net, besides the client application must be in =
Java.=20
        To learn how to do this, we create a simple application. We =
have a
client that must send 2 parameters to a .NET WebService. These =
parameters
will be added and returned to the client.=20
        But that Web Service is not receiving the parameters correctly =
and
always return 0, as a result.
        I`m sending the clients` code and the Web Services` code.
        It seems that the parameters are being encoded by the client
application and not correctly unmarshalled on server side, how can we =
solve
this?
        Thanks a lot
        L=E1zara Camila
=09

        CLIENTS`CODE

        import org.apache.soap.encoding.soapenc.BeanSerializer;
        import org.apache.soap.encoding.SOAPMappingRegistry;
        import org.apache.soap.util.xml.QName;
        import java.net.URL;
        import org.apache.soap.Constants;
        import org.apache.soap.Fault;
        import org.apache.soap.SOAPException;
        import org.apache.soap.rpc.Call;
        import org.apache.soap.rpc.Parameter;
        import org.apache.soap.rpc.Response;
        import java.util.Vector;
        import java.lang.Double;
        import java.util.Properties;
        import org.apache.soap.transport.http.SOAPHTTPConnection;

        public class testClient {

        public static void main(String[] args) throws Exception {

                URL url =3D new URL
("http://localhost/Teste/WebServices/Service1.asmx");
        =09
                SOAPMappingRegistry smr =3D new SOAPMappingRegistry ();
        =09
                smr.mapTypes(Constants.NS_URI_SOAP_ENC,
                new
QName("http://schemas.xmlsoap.org/soap/encoding/","double"),java.lang.Do=
uble
.class, null, new
org.apache.soap.encoding.soapenc.DoubleObjectDeserializer());

        =09
        //      StringDeserializer sd =3D new StringDeserializer ();
        //      ParameterSerializer ps=3D new ParameterSerializer ();
        //      smr.mapTypes (Constants.NS_URI_SOAP_ENC, new QName ("",
"Result"), null, null, sd);

                // create the transport and set parameters
                SOAPHTTPConnection st =3D new SOAPHTTPConnection();

                // build the call.
                Call call =3D new Call ();
                call.setSOAPTransport(st);
                call.setSOAPMappingRegistry (smr);
                call.setTargetObjectURI
("http://www.catalin.com/webservices/");
        =09
                call.setMethodName("addNumbers");
                call.setEncodingStyleURI (Constants.NS_URI_SOAP_ENC);
=09
                Vector params =3D new Vector();
                params.addElement(new Parameter("NumberOne", =
Integer.class,
new Integer(1),null ));
                params.addElement(new Parameter("NumberTwo", =
Integer.class,
new Integer(2),null ));
        =09
                call.setParams(params);
                call.setSOAPMappingRegistry(smr);
                        =09
                Response resp =3D null;

                try {
                        System.out.println( "dentro do try do invoke =
");
                        resp =3D call.invoke (url,
"http://www.catalin.com/webservices/addNumbers");=09
                =09
                }
                catch (SOAPException e) {
                =09
                        System.err.println("Caught SOAPException (" +
e.getFaultCode () + "): " + e.getMessage ());
                        return;
                }

                // check response
                if (resp !=3D null && !resp.generatedFault()) {
                        Parameter ret =3D resp.getReturnValue();
                        Object value =3D ret.getValue();
=09
                }
                else {
                        Fault fault =3D resp.getFault ();
                        System.err.println ("Generated fault: ");
                        System.out.println (" Fault Code =3D " +
fault.getFaultCode());
                        System.out.println (" Fault String =3D " +
fault.getFaultString());
                }
        }
}
=09

        WEB SERVICES` CODE

        using System;
        using System.Collections;
        using System.ComponentModel;
        using System.Data;
        using System.Diagnostics;
        using System.Web;
        using System.Web.Services;

        namespace Teste.WebServices
        {
        /// <summary>
        /// Summary description for Service1.
        /// </summary>
                public class Service1 : System.Web.Services.WebService
                {
                        public Service1()
                        {
                        //CODEGEN: This call is required by the ASP.NET =
Web
Services Designer
                        InitializeComponent();
                        }

                #region Component Designer generated code
        =09
                //Required by the Web Services Designer=20
                private IContainer components =3D null;
                        =09
                /// <summary>
                /// Required method for Designer support - do not =
modify
                /// the contents of this method with the code editor.
                /// </summary>
                private void InitializeComponent()
                {
                }

                /// <summary>
                /// Clean up any resources being used.
                /// </summary>
                protected override void Dispose( bool disposing )
                {
                        if(disposing && components !=3D null)
                        {
                                components.Dispose();
                        }
                        base.Dispose(disposing);        =09
                }
        =09
                #endregion

                [WebMethod]
        =09
                [System.Web.Services.Protocols.SoapRpcMethodAttribute(
                         =
"http://www.catalin.com/webservices/addNumbers",
=09
RequestNamespace=3D"http://www.catalin.com/webservices/"),=20
=09
ResponseNamespace=3D"http://www.catalin.com/webservices/")]
                public double addNumbers(int numberOne, int numberTwo)=20
                {
                        return numberOne + numberTwo;
                }
        }
}
=09
          =20



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