WCF之多个协定

多个协定”示例演示如何在一个服务上实现多个协定，以及如何配置终结点以便与实现的每个协定进行通信

1.服务端代码如下（服务实现了两个协定，增加了黄色所示代码）：

   class Program
     {
         static void Main(string[] args)
         {
             //创建一个ServiceHost
             using (ServiceHost serviceHost = new ServiceHost(typeof(CalculatorService)))
             {
                 // Open the ServiceHost to create listeners
                 serviceHost.Open();
                 Console.WriteLine("服务已经开启！");
                 Console.WriteLine("按回车键结束服务！");
                 Console.WriteLine();
                 Console.ReadLine();
             }
         }       

     }
     [ServiceContract]//定义服务协定完成
     public interface ICalculator
     {
         [OperationContract]
         double Add(double n1, double n2);
         [OperationContract]
         double Subtract(double n1, double n2);
         [OperationContract]
         double Multiply(double n1, double n2);
         [OperationContract]
         double Divide(double n1, double n2);
     }

     [ServiceContract]
     public interface ICalculatorSession
     {
         [OperationContract]
         string test(string s);
     }

     public class CalculatorService : ICalculator, ICalculatorSession
     {
         public double Add(double n1, double n2)
         {
             return n1 + n2;
         }

         public double Subtract(double n1, double n2)
         {
             return n1 - n2;
         }

         public double Multiply(double n1, double n2)
         {
             return n1 * n2;
         }

         public double Divide(double n1, double n2)
         {
             return n1 / n2;
         }

         public string test(string s)
         {
             return s;
         }
     }

2.服务端的配置（增加了黄色所示的终结点）：

 <system.serviceModel>
     <services>
       <service name="Microsoft.ServiceModel.Samples.CalculatorService" behaviorConfiguration="returnFaults">
         <endpoint address="http://localhost:8000/GIX4" binding ="customBinding"
                   bindingConfiguration="compactBindingConfig" contract="Microsoft.ServiceModel.Samples.ICalculator"/>
         <endpoint address="basic" binding="basicHttpBinding" contract="Microsoft.ServiceModel.Samples.ICalculator"></endpoint>
         <endpoint address="secure" binding="wsHttpBinding" contract="Microsoft.ServiceModel.Samples.ICalculator"></endpoint>
         <endpoint address="session" binding="wsHttpBinding" contract="Microsoft.ServiceModel.Samples.ICalculatorSession"></endpoint>
         <host>
           <baseAddresses>
             <add baseAddress="http://localhost:8000/GIX4"/>
           </baseAddresses>
         </host>
       </service>
     </services>
     <bindings>
       <customBinding>
         <binding name="compactBindingConfig" receiveTimeout="00:20:00" sendTimeout="00:30:00">
           <binaryMessageEncoding>
             <readerQuotas maxDepth="" maxStringContentLength="" maxArrayLength="" maxBytesPerRead="" maxNameTableCharCount=""/>
           </binaryMessageEncoding>
           <httpTransport maxReceivedMessageSize="" />
         </binding>
       </customBinding>
     </bindings>
     <behaviors>
       <serviceBehaviors>
         <behavior name="returnFaults">
           <serviceDebug includeExceptionDetailInFaults="true"/>
           <!-- 为避免泄漏元数据信息，请在部署前将以下值设置为 false 并删除上面的元数据终节点-->
           <serviceMetadata httpGetEnabled="true"/>
         </behavior>
       </serviceBehaviors>
     </behaviors>
   </system.serviceModel>

3.客户端更新以下服务，然后对配置做适当的修改，如下黄色所示：

   <system.serviceModel>
         <bindings>
             <basicHttpBinding>
                 <binding name="BasicHttpBinding_ICalculator" />
             </basicHttpBinding>
             <customBinding>
                 <binding name="CustomBinding_ICalculator">
                     <binaryMessageEncoding />
                     <httpTransport />
                 </binding>
             </customBinding>
             <wsHttpBinding>
                 <binding name="WSHttpBinding_ICalculator" />
                 <binding name="WSHttpBinding_ICalculatorSession" />
             </wsHttpBinding>
         </bindings>
         <client>
             <endpoint address="http://localhost:8000/GIX4" binding="customBinding"
                 bindingConfiguration="CustomBinding_ICalculator" contract="Calculator.Service.ICalculator"
                 name="CustomBinding_ICalculator" />
             <endpoint address="http://localhost:8000/GIX4/basic" binding="basicHttpBinding"
                 contract="Calculator.Service.ICalculator" name="basic" />
             <endpoint address="http://localhost:8000/GIX4/secure" binding="wsHttpBinding"
                 contract="Calculator.Service.ICalculator" name="secure">
                 <identity>
                     <userPrincipalName value="chenlh@huawei" />
                 </identity>
             </endpoint>
             <endpoint address="http://localhost:8000/GIX4/session" binding="wsHttpBinding"
                 contract="Calculator.Service.ICalculatorSession" name="session">
                 <identity>
                     <userPrincipalName value="chenlh@huawei" />
                 </identity>
             </endpoint>
         </client>
     </system.serviceModel>

4.客户端调用：

  class Program
     {
         static void Main(string[] args)
         {
             CalculatorClient client = new CalculatorClient("secure");
             double n1 = 5.6;
             double n2 = 7.3;
             double result;

             result = client.Add(n2,n1);
             Console.WriteLine("执行加法后的结果为：{0}", result.ToString());

             result = client.Subtract(n2, n1);
             Console.WriteLine("执行减法后的结果为：{0}", result.ToString());

             result = client.Multiply(n1, n2);
             Console.WriteLine("执行乘法后的结果为：{0}", result.ToString());

             result = client.Divide(n1, n2);
             Console.WriteLine("执行除法后的结果为：{0}", result.ToString());

             CalculatorSessionClient clientSeesion = new CalculatorSessionClient();
             string s = clientSeesion.test("你好我做一个测试！");
             Console.WriteLine(s);

             Console.ReadLine();

         }
     }