1.动态操作webService类

public static class WebServiceHelper    {        #region InvokeWebService        //动态调用web服务        public static object InvokeWebService(string url, string methodname, object[] args)        {            return WebServiceHelper.InvokeWebService(url, null, methodname, args);        }        public static object InvokeWebService(string url, string classname, string methodname, object[] args)        {            string @namespace = "bloodWeb";            if ((classname == null) || (classname == ""))            {                classname = WebServiceHelper.GetWsClassName(url);            }            try            {                               //使用 XmlTextReader 对象，创建和格式化 WSDL 文档                XmlTextReader reader = new XmlTextReader(url + "?wsdl");                ServiceDescription sd = ServiceDescription.Read(reader);                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];        }        #endregion    }

2.以天天气预报为例 地址：

3.取获得的省份 代码如下

object obj = WebServiceHelper.InvokeWebService("http://www.webxml.com.cn/WebServices/WeatherWebService.asmx", "getSupportProvince", null);  string[] ss = obj as string[];

4结果如下图：