契约

新建一个WCF服务类库项目，在其中添加两个WCF服务：GameService，PlayerService

代码如下：

[ServiceContract]
public interface IGameService
{
 [OperationContract]
 Task<string> DoWork(string arg);
}

public class GameService : IGameService
{
 public async Task<string> DoWork(string arg)
 {
 return await Task.FromResult($"Hello {arg}, I am the GameService.");
 }
}

[ServiceContract]
public interface IPlayerService
{
 [OperationContract]
 Task<string> DoWork(string arg);
}

public class PlayerService : IPlayerService
{
 public async Task<string> DoWork(string arg)
 {
 return await Task.FromResult($"Hello {arg}, I am the PlayerService.");
 }
}

服务端

新建一个控制台应用程序，添加一个类 ServiceHostManager

public interface IServiceHostManager : IDisposable
{
 void Start();
 void Stop();
}

public class ServiceHostManager<TService> : IServiceHostManager
 where TService : class
{
 ServiceHost _host;

 public ServiceHostManager()
 {
 _host = new ServiceHost(typeof(TService));
 _host.Opened += (s, a) => {
 Console.WriteLine("WCF监听已启动！{0}", _host.Description.Endpoints[0].Address);
 };
 _host.Closed += (s, a) =>
 {
 Console.WriteLine("WCF服务已终止！{0}", _host.Description.Endpoints[0].Name);
 }; 
 }
 public void Start()
 {
 Console.WriteLine("正在开启WCF服务...{0}", _host.Description.Endpoints[0].Name);
 _host.Open();
 }
 public void Stop()
 {
 if (_host != null && _host.State == CommunicationState.Opened)
 {
 Console.WriteLine("正在关闭WCF服务...{0}", _host.Description.Endpoints[0].Name);
 _host.Close();
 }
 }
 public void Dispose()
 {
 Stop();
 }

 public static Task StartNew(CancellationTokenSource cancelTokenSource)
 {
 var theTask = Task.Factory.StartNew(() =>
 {
 IServiceHostManager shs = null;
 try
 {
 shs = new ServiceHostManager<TService>();
 shs.Start();
 while (true)
 {
 if (cancelTokenSource.IsCancellationRequested && shs != null)
 {
 shs.Stop();
 break;
 }
 }
 }
 catch (Exception ex)
 {
 Console.WriteLine(ex);
 if (shs != null)
 shs.Stop();
 }
 }, cancelTokenSource.Token);

 return theTask;
 }
}

在Main方法中启动WCF主机

class Program
 {
 static Program()
 {
 Console.WriteLine("初始化...");
 Console.WriteLine("服务运行期间，请不要关闭窗口。");
 Console.WriteLine();
 }

 static void Main(string[] args)
 {
 Console.Title = "WCF主机 x.（按 [Esc] 键停止服务）";
 var cancelTokenSource = new CancellationTokenSource();
 ServiceHostManager<WcfContract.Services.GameService>.StartNew(cancelTokenSource);
 ServiceHostManager<WcfContract.Services.PlayerService>.StartNew(cancelTokenSource);
 while (true)
 {
 if (Console.ReadKey().Key == ConsoleKey.Escape)
 {
 Console.WriteLine();
 cancelTokenSource.Cancel();
 break;
 }
 }
 Console.ReadLine();
 }
 }

服务端配置

在控制台应用程序的App.config中配置system.serviceModel

<system.serviceModel>
 <services>
 <service name="Wettery.WcfContract.Services.GameService" behaviorConfiguration="gameMetadataBehavior">
 <endpoint address="net.tcp://localhost:19998/Wettery/GameService" binding="netTcpBinding" contract="Wettery.WcfContract.Services.IGameService" bindingConfiguration="netTcpBindingConfig">
 <identity>
 <dns value="localhost" />
 </identity>
 </endpoint>
 </service>
 <service name="Wettery.WcfContract.Services.PlayerService" behaviorConfiguration="playerMetadataBehavior">
 <endpoint address="net.tcp://localhost:19998/Wettery/PlayerService" binding="netTcpBinding" contract="Wettery.WcfContract.Services.IPlayerService" bindingConfiguration="netTcpBindingConfig">
 <identity>
 <dns value="localhost" />
 </identity>
 </endpoint>
 </service>
 </services>
 <bindings>
 <netTcpBinding>
 <binding name="netTcpBindingConfig" closeTimeout="00:30:00" openTimeout="00:30:00" receiveTimeout="00:30:00" sendTimeout="00:30:00" transactionFlow="false" transferMode="Buffered" transactionProtocol="OleTransactions" hostNameComparisonMode="StrongWildcard" listenBacklog="100" maxBufferPoolSize="21474837" maxBufferSize="21474837" maxConnections="100" maxReceivedMessageSize="21474837">
 <readerQuotas maxDepth="" maxStringContentLength="21474837" maxArrayLength="21474837 " maxBytesPerRead="4096" maxNameTableCharCount="16384" />
 <reliableSession ordered="true" inactivityTimeout="00:30:00" enabled="false" />
 <security mode="Transport">
 <transport clientCredentialType="Windows" protectionLevel="EncryptAndSign" />
 </security>
 </binding>
 </netTcpBinding>
 </bindings>
 <behaviors>
 <serviceBehaviors>
 <behavior name="gameMetadataBehavior">
 <serviceMetadata httpGetEnabled="True" httpGetUrl="http://localhost:8081/Wettery/GameService/MetaData" />
 <serviceDebug includeExceptionDetailInFaults="True" />
 <serviceThrottling maxConcurrentCalls="1000" maxConcurrentInstances="1000" maxConcurrentSessions="1000" />
 </behavior>
 <behavior name="playerMetadataBehavior">
 <serviceMetadata httpGetEnabled="True" httpGetUrl="http://localhost:8081/Wettery/PlayerService/MetaData" />
 <serviceDebug includeExceptionDetailInFaults="True" />
 <serviceThrottling maxConcurrentCalls="1000" maxConcurrentInstances="1000" maxConcurrentSessions="1000" />
 </behavior>
 </serviceBehaviors>
 </behaviors>
 </system.serviceModel>

未避免元数据泄露，部署时将HttpGetEnable设为False

运行控制台应用程序

按[ESC]键终止服务

客户端测试

服务端运行后，用wcftestclient工具测试，服务地址即behavior中配置的元数据GET地址

http://localhost:8081/Wettery/GameService/MetaData

http://localhost:8081/Wettery/PlayerService/MetaData

总结