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="64" maxStringContentLength="2147483647" maxArrayLength="2147483647" maxBytesPerRead="4096" maxNameTableCharCount="16384"/>
          </binaryMessageEncoding>
          <httpTransport maxReceivedMessageSize="2147483647" />
        </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();

        }
    }