C#动态调用Web服务方法

C#动态调用Web服务方法：完全动态处理,传入服务服务网址,方法名和参数即可.

using System;   using System.Net;   using System.IO;   using System.CodeDom;   using Microsoft.CSharp;   using System.CodeDom.Compiler;   using System.Web.Services.Description;   using System.Web.Services.Protocols;    namespace HB.Common   {       /* 调用方式        *   string url = "http://www.webservicex.net/globalweather.asmx" ;        *   string[] args = new string[2] ;        *   args[0] = "Hangzhou";        *   args[1] = "China" ;        *   object result = WebServiceHelper.InvokeWebService(url ,"GetWeather" ,args) ;        *   Response.Write(result.ToString());        */       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];           }           #endregion       }   } 

返回时如果不是字符串,即强制转换,如返回是DataSet,则

string url = "http://www.webservicex.net/globalweather.asmx" ;   string[] args = new string[2] ;   args[0] = "Hangzhou";   args[1] = "China" ;   object result = WebServiceHelper.InvokeWebService(url ,"GetWeather" ,args) ;   DataSet DSRe=(DataSet)result;