using System;using System.Collections.Generic;using System.Linq;using System.Text;using System.Net;using System.Web.Services.Description;using System.CodeDom;using Microsoft.CSharp;using System.CodeDom.Compiler;using System.IO;namespace IBO.XJMYQP.Utility{    public class WebServiceInvoke    {        public static object InvokeWebService(string url, string methodname)        {            return InvokeWebService("", url, null, methodname, null);        }        public static object InvokeWebService(string url, string methodname, object[] args)        {            return InvokeWebService("", url, null, methodname, args);        }        public static object InvokeWebService(string nameSpace, string url, string methodname, object[] args)        {            return InvokeWebService(nameSpace, url, null, methodname, args);        }        public static object InvokeWebService(string nameSpace, string url, string classname, string methodname, object[] args)        {            string @namespace = nameSpace;            if ((classname == null) || (classname == ""))            {                classname = 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 csc = new CSharpCodeProvider();                ICodeCompiler icc = csc.CreateCompiler();                //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);            }            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];        }    }}

调用：

WebServiceInvoke.InvokeWebService(url, "GetServiceStatus");

其他博客：

另外一种动态方式： 记录一个.net平台下动态调用webservice的处理类(动态编辑请求soap信息)

实质上就是基于Http get/post请求来调用webservice 

C#动态调用webservice方法