C# 动态调用Webservice 速度慢

seizetheday007 2012-03-23 01:38:52

下面的代码调试通过，与大家分享。
不过执行速度比较慢，调用一次一般要3-4秒。

请大家给点建议或分析下原因。

谢谢。



try

            {

                // 获取WSDL

                WebClient wc = new WebClient();

                Stream stream = wc.OpenRead(url + "?WSDL");

                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);



                // 抛出异常

                if (cr.Errors.HasErrors)

                {

                    StringBuilder sb = new StringBuilder();

                    foreach (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;

                Type t = assembly.GetType(@namespace + "." + classname, true, true);

                object obj = Activator.CreateInstance(t);

                System.Reflection.MethodInfo mi = t.GetMethod(methodname);



                return mi.Invoke(obj, args);

            }

            catch (Exception ex)

            {

                throw new Exception(ex.InnerException.Message, new Exception(ex.InnerException.StackTrace));

            }