在平时开发过程中，经常会遇到和其他系统的对接，webService无疑是一个好的选择，我们可以选择.net自带的代理类。但是很多情况下，这并不一定是最好的选择。为此，在网上找到了一篇.net自代理类，现记录如下：

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       }

我们的接口调用可以采用

//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);

其中，第一个参数是需要调用的web服务的地址，第二个参数是函数名，第三个为一个object数组作为需要调用服务的参数