C#动态调用web service

C# 动态调用Web Service的方法以下，其中URL是在App.config文件中配置的

<?xml version="1.0" encoding="utf-8" ?>
<configuration>
  <configSections>
  </configSections>

  <appSettings>
    <!--后台服务端Web Service的URL-->
    <add key="Service_URL" value="http://localhost:8080/dwglServices/services/DealData" />
  </appSettings>

  <connectionStrings>
    <!--后端服务器数据库配置信息-->
    <add name="ConnServerDatabase" connectionString="uid=sa;pwd=123;database=mdb;Server=192.168.18.2"/>

    <!--前台客户端数据库配置信息-->
    <add name="ConnClientDatabase" connectionString="uid=sa;pwd=123;database=mdb;Server=127.0.0.1,1433"/>
  </connectionStrings>

</configuration>

// 3.调用Java的API接口,把数据传递到服务器数据库中
       string url = ConfigurationManager.AppSettings["Service_URL"].ToString();
       string[] args = new string[1];
       args[0] = deviceData4JSON;  // 传送JSON数据格式
       object result = WebServiceHelper.InvokeWebService(url, "dealData", args);

/// <summary>
    /// 态调用Web服务方法二：彻底动态处理,传入服务服务网址,方法名和参数便可
    /// 调用方式:
    ///     string url = "http://www.webservicex.net/globalweather.asmx";
    ///     string[] args = new string[2];
    ///     args[0] = "Nanjing";
    ///     args[1] = "China";
    ///     object result = WebServiceHelper.InvokeWebService(url,"GetWeather",args);
    ///     Response.Write(result.ToString());
    /// </summary>
    public class WebServiceHelper
    {

        /// < 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);
            }
            catch (Exception ex)
            {
                throw new Exception(ex.InnerException.Message, new Exception(ex.InnerException.StackTrace));
            }
        }

        /// <summary>
        /// 取得Web Service类名
        /// </summary>
        /// <param name="wsUrl"></param>
        /// <returns></returns>
        private static string GetWsClassName(string wsUrl)
        {
            string[] parts = wsUrl.Split('/');
            string[] pps = parts[parts.Length - 1].Split('.');
            return pps[0];
        }

    }