这种方式比较简单，而且也是大家喜欢的，因为不需要任何配置文件就可解决，只需知道服务契约接口和服务地址就可以调用。

string url = "http://localhost:3000/DoubleService.svc";IDoubleService proxy = WcfInvokeFactory.CreateServiceByUrl
     
      (url);int result = proxy.Add(1, 3);
     

需要用到的类

public class WcfInvokeFactory   {       #region WCF服务工厂       public static T CreateServiceByUrl
     
      (string url)       {           return CreateServiceByUrl
      
       (url, "basicHttpBinding");       }        public static T CreateServiceByUrl
       
        (string url, string bing)       {           try           {               if (string.IsNullOrEmpty(url)) throw new NotSupportedException("This url is not Null or Empty!");               EndpointAddress address = new EndpointAddress(url);               Binding binding = CreateBinding(bing);               ChannelFactory
        
          factory = new ChannelFactory
         
          (binding, address);               return factory.CreateChannel();           }           catch (Exception ex)           {               throw new Exception("创建服务工厂出现异常.");           }       }       #endregion        #region 创建传输协议       /// 
          
 /// 创建传输协议 /// 
       /// 
          传输协议名称       /// 
                 private static Binding CreateBinding(string binding)       {           Binding bindinginstance = null;           if (binding.ToLower() == "basichttpbinding")           {               BasicHttpBinding ws = new BasicHttpBinding();               ws.MaxBufferSize = 2147483647;               ws.MaxBufferPoolSize = 2147483647;               ws.MaxReceivedMessageSize = 2147483647;               ws.ReaderQuotas.MaxStringContentLength = 2147483647;               ws.CloseTimeout = new TimeSpan(0, 30, 0);               ws.OpenTimeout = new TimeSpan(0, 30, 0);               ws.ReceiveTimeout = new TimeSpan(0, 30, 0);               ws.SendTimeout = new TimeSpan(0, 30, 0);                bindinginstance = ws;           }           else if (binding.ToLower() == "nettcpbinding")           {               NetTcpBinding ws = new NetTcpBinding();               ws.MaxReceivedMessageSize = 65535000;               ws.Security.Mode = SecurityMode.None;               bindinginstance = ws;           }           else if (binding.ToLower() == "wshttpbinding")           {               WSHttpBinding ws = new WSHttpBinding(SecurityMode.None);               ws.MaxReceivedMessageSize = 65535000;               ws.Security.Message.ClientCredentialType = System.ServiceModel.MessageCredentialType.Windows;               ws.Security.Transport.ClientCredentialType = System.ServiceModel.HttpClientCredentialType.Windows;               bindinginstance = ws;           }           return bindinginstance;        }       #endregion   }
         
        
       
      
     

不需要任何配置文件，适合配置多个wcf，然后在后台win服务动态调用的使用场景。