通常在客户端访问WCF服务时，都需要添加服务引用，然后在客户端app.config或web.config文件中产生WCF服务的客户端配置信息。若是每添加一个服务都是这样做，这样势必会将比较麻烦，能否简单在app.config或web.config文件增加WCF服务地址，然后直接通过此地址访问WCF服务呢？可以，那就是通过自定义客户端代理类来实现。本文是通过继承ClientBase<T>类实现的自定义客户端代理类，来实现同过简单在app.config或web.config文件增加wcf服务地，然后直接通过此地址访问WCF服务。

      以下以一个简单的计算器WCF服务为例：

     解决方案项目目录结构：

    

   其中WCFExample.ServiceInterface项目是WCF服务接口、WCFExample.ServiceImplement项目是WCF服务实现、WCFExample.Host项目是服务宿主、WCFExample.ServiceClient项目自定义WCF服务客户端代理、WCFExample.ServiceClientTest项目是客户端测试

  WCF服务接口定义

    [ServiceContract]

    public interface ICalculator

    {

        [OperationContract]

        decimal Add(decimal a, decimal b);

    }

  WCF服务接口实现

   public class Calculator : ICalculator

    {

        public decimal Add(decimal a, decimal b)

        {

            return a + b;

        }

    }

  WCF服务客户端自定义代理类

    internal class CalculatorClient : ClientBase<ICalculator>,ICalculator

    {

        public CalculatorClient(Binding binding, EndpointAddress remoteAddress):base(binding,remoteAddress)

        {

        }

        public  decimal Add(decimal a,decimal b)

        {

           return base.Channel.Add(a, b);

        }

    }

   服务创建工厂

internal class ServiceFactory

    {

        public ICalculator GetCalculatorClient(string remotingAddress)

        {

            if(string.IsNullOrEmpty(remotingAddress))

            {

                return null;

            }

            try

            {

                return new CalculatorClient(this.GetInitBinding(), new EndpointAddress(remotingAddress));

            }

            catch

            {

                return null;

            }

        }

        public ICalculator GetCalculatorClient(string remotingAddress, Binding binding)

        {

            if (string.IsNullOrEmpty(remotingAddress))

            {

                return null;

            }

            try

            {

                return new CalculatorClient(binding, new EndpointAddress(remotingAddress));

            }

            catch

            {

                return null;

            }

        }

        private BasicHttpBinding GetInitBinding()

        {

            BasicHttpBinding binding = new BasicHttpBinding();

            binding.MaxBufferSize = 0x27100000;

            binding.MaxReceivedMessageSize = 0x27100000L;

            binding.MaxBufferPoolSize = 0x138800000L;

            XmlDictionaryReaderQuotas quotas = new XmlDictionaryReaderQuotas();

            quotas.MaxStringContentLength = 0x4e20000;

            binding.ReaderQuotas = quotas;

            return binding;

        }

    }

    对外服务代理类

  

public class ServiceProxy

    {

        private ICalculator m_ICalculator;

        public ServiceProxy(string remotingAddress)

        {

            m_ICalculator = new ServiceFactory().GetCalculatorClient(remotingAddress);

        }

        public ServiceProxy(string remotingAddress,Binding binding)

        {

            m_ICalculator = new ServiceFactory().GetCalculatorClient(remotingAddress, binding);

        }

        public decimal Add(decimal a,decimal b)

        {

            return m_ICalculator.Add(a, b);

        }

    }

   客户端web.config增加服务地址

<appSettings>

  <add key="WCFAddress" value=">

 </appSettings>

  客户端调用

   decimal a = 10;

   decimal b = 20;

   string url = System.Configuration.ConfigurationManager.AppSettings["WCFAddress"];

   ServiceProxy serviceProxy = new ServiceProxy(url);

   Response.Write(serviceProxy.Add(a,b));

  项目下载: