！C#动态调用Java Web Service有关问题

求助！！！急！！在线等。C#动态调用Java Web Service问题

public static object InvokeWebService(string url, string classname, string methodname, object[] args)

        {

            string @namespace = "EnterpriseServerBase.WebService.DynamicWebCalling";

            if ((classname == null) || (classname == ""))

            {

                classname = WSHelper.GetWsClassName(url);

            }

            try

            { //获取WSDL 

                WebClient wc = new WebClient();

                Stream stream = wc.OpenRead(url);

                ServiceDescription sd = ServiceDescription.Read(stream);

                ServiceDescriptionImporter sdi = new ServiceDescriptionImporter();

                sdi.AddServiceDescription(sd, "", "");

                CodeNamespace cn = new CodeNamespace(@namespace);

                //生成客户端代理类代码 

                CodeCompileUnit ccu = new CodeCompileUnit();

                ccu.Namespaces.Add(cn);

                sdi.Import(cn, ccu);

                CSharpCodeProvider icc = new CSharpCodeProvider();

                //设定编译参数 

                CompilerParameters cplist = new CompilerParameters();

                cplist.GenerateExecutable = false;

                cplist.GenerateInMemory = true;

                cplist.ReferencedAssemblies.Add("System.dll");

                cplist.ReferencedAssemblies.Add("System.XML.dll");

                cplist.ReferencedAssemblies.Add("System.Web.Services.dll");

                cplist.ReferencedAssemblies.Add("System.Data.dll");

                //编译代理类 

                CompilerResults cr = icc.CompileAssemblyFromDom(cplist, ccu);

                if (true == cr.Errors.HasErrors)

                {

                    System.Text.StringBuilder sb = new System.Text.StringBuilder();

                    foreach (System.CodeDom.Compiler.CompilerError ce in cr.Errors)

                    {

                        sb.Append(ce.ToString());

                        sb.Append(System.Environment.NewLine);

                    }

                    throw new Exception(sb.ToString());

                }

                //生成代理实例，并调用方法 

                System.Reflection.Assembly assembly = cr.CompiledAssembly;