.net webService代理类

 public class WebServiceHelper
    {
        #region InvokeWebService   
        /// < summary>   
        /// 动态调用web服务   
        /// < /summary>   
        /// < param name="url">WSDL服务地址< /param>   
        /// < param name="methodname">方法名< /param>   
        /// < param name="args">参数< /param>   
        /// < returns>< /returns>   
        public static object InvokeWebService(string url, string methodname, object[] args)   
        {   
            return WebServiceHelper.InvokeWebService(url, null, methodname, args);   
        }   
 
        /// < summary>   
        /// 动态调用web服务   
        /// < /summary>   
        /// < param name="url">WSDL服务地址< /param>   
        /// < param name="classname">类名< /param>   
        /// < param name="methodname">方法名< /param>   
        /// < param name="args">参数< /param>   
        /// < returns>< /returns>   
        public static object InvokeWebService(string url, string classname, string methodname, object[] args)   
        {   
            string @namespace = "EnterpriseServerBase.WebService.DynamicWebCalling";   
            if ((classname == null) || (classname == ""))   
            {   
                classname = WebServiceHelper.GetWsClassName(url);   
            }   
 
            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);   
                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;   
                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);   
 
                /*   
                PropertyInfo propertyInfo = type.GetProperty(propertyname);   
                return propertyInfo.GetValue(obj, null);   
                */   
            }   
            catch (Exception ex)   
            {
                throw new Exception(ex.InnerException.Message, new Exception(ex.InnerException.StackTrace));   
            }   
        }   
 
        private static string GetWsClassName(string wsUrl)   
        {   
            string[] parts = wsUrl.Split('/');   
            string[] pps = parts[parts.Length - 1].Split('.');   
 
            return pps[0];   
        }

        private static string GetArgs(object [] args)
        {
            string strArg = string.Empty;
            for (int i = 0; i < args.Length; i++)
            {
                strArg += " \targs [" + i + "]\t" + args[i].ToString() ;
            }
            return strArg;
        }

        #endregion   
    }

  //获取web服务地址
            string Url = System.Configuration.ConfigurationSettings.AppSettings["SMSEvaluationUrl"].ToString();
            DateTime dt = DateTime.Now;
            string day = dt.ToString("yyyy-MM-dd");
            int hour = DateTime.Now.Hour;
            object[] args = new object[] { 12346, day, hour, 1 };
            string ret1 = string.Empty;
            try
            {
                ret1 = (string)WebServiceHelper.InvokeWebService(Url, "GetReplyInfoByNum", args);
            }
            catch (Exception ex)
            {
                exceptionHandler("调用接口失败！", ex);
            }
            retValueHandler(ret1,args);