WCF应用的编码实现

先来看看代码，然后再解说一下。

    class Program
    {
        static void Main(string[] args)
        {
            AppDomain.CurrentDomain.UnhandledException += new UnhandledExceptionEventHandler(CurrentDomain_UnhandledException);

            using (ServiceHost serviceHost = new ServiceHost(typeof(ServiceMonitor)))
            {
                NetNamedPipeBinding binding = new NetNamedPipeBinding();
                binding.Security.Mode = NetNamedPipeSecurityMode.None;
                binding.ReceiveTimeout = TimeSpan.Parse("00:00:05");
                binding.MaxReceivedMessageSize = 6553600;
                binding.ReaderQuotas.MaxStringContentLength = 6553600;

                serviceHost.AddServiceEndpoint(typeof(IMonitor), binding, "net.pipe://localhost/ServiceMonitor");

                //ServiceMetadataBehavior behavior = serviceHost.Description.Behaviors.Find<ServiceMetadataBehavior>();
                //if (behavior == null)
                //{
                //    behavior = new ServiceMetadataBehavior();
                //    serviceHost.Description.Behaviors.Add(behavior);
                //}

                serviceHost.Opened += delegate
                {
                    Console.WriteLine("正在运行的服务提供IMonitor功能..");
                };
                serviceHost.Open();

                while (true)
                {
                    Console.WriteLine("服务正在运行，要退出请键入exit");
                    string cmd = Console.ReadLine();
                    if (cmd == "exit")
                        break;
                }
            }
        }

        static void CurrentDomain_UnhandledException(object sender, UnhandledExceptionEventArgs e)
        {
            Console.WriteLine("刚才的操作发生异常，信息如下：");
            Console.Write(e.ToString());
        }
    }


    [ServiceContract]
    public interface IMonitor
    {
        [OperationContract]
        void Record(string key, string value);
    }

    public class ServiceMonitor : IMonitor
    {
        public void Record(string key, string value)
        {
            Console.WriteLine(string.Format("Key = {0}", key));
            Console.WriteLine(string.Format("Value = {0}", value));
            Console.WriteLine(new string('*', 50));
        }
    }

    public static class ServiceMonitorClientManager
    {
        public static void Record(string key, string value)
        {
            try
            {
                EndpointAddress address = new EndpointAddress("net.pipe://localhost/ServiceMonitor");
                NetNamedPipeBinding binding = new NetNamedPipeBinding();
                binding.Security.Mode = NetNamedPipeSecurityMode.None;
                binding.SendTimeout = TimeSpan.Parse("00:00:01");
                binding.ReaderQuotas.MaxStringContentLength = 6553600;
                binding.MaxReceivedMessageSize = 6553600;

                IMonitor iMonitor = ChannelFactory<IMonitor>.CreateChannel(binding, address);
                using (iMonitor as IDisposable)
                {
                    iMonitor.Record(key, value);
                }
            }
            catch (System.ServiceModel.CommunicationObjectFaultedException) { }
            catch (System.ServiceModel.EndpointNotFoundException) { }
        }
    }

1、通过using (ServiceHost serviceHost = new ServiceHost(typeof(ServiceMonitor))) 初始化了一个ServiceHost对象，然后通过编码创建ServiceEndpoint然后添加到ServiceHost对象中，根据ABC规则，ServiceEndpoint的创建最少需要传入Contract、Binding、Address，例如：

serviceHost.AddServiceEndpoint(typeof(IMonitor), binding, "net.pipe://localhost/ServiceMonitor");

2、创建ServiceHost后还可以添加相应的IServiceBehavior实现例如：内置的ServiceMetadataBehavior等，也可以创建自定义的Behavior

public class CustomBehavior :IServiceBehavior

可以通过serviceHost.Description.Behaviors.Add(behavior);把内置或或自定义的Behavior添加到ServiceHost中。

3、WCF的客户端代理可以通过ChannelFactory来创建，只要为ChannelFactory<T>.CreateChannel 方法传入Binding和Address参数即可，当然也可以通过
public class ContentReceiverClient : ClientBase<T>, T
如：public class ContentReceiverClient : ClientBase<IMonitor>, IMonitor 方式创建

4、当使用ChannelFactory创建客户代理时请调用IDisposable方法关闭资源

using (iMonitor as IDisposable)

如果使用Client : ClientBase<T>, T 创建客户代理如：
base.Channel.接口方法
则需要在调用完后Client.Close()关闭资源。