Silverlight4在跨域访问TCP时会读取Http 80端口的跨域策略文件，可以放IIS上，也可以在服务控制台托管Http服务

例子是控制台托管TCP服务和Http跨域策略文件服务

 

配置文件：

<?xml version="1.0"?>

<configuration>

    <system.serviceModel>

      <services>

        <service name="ConsoleApplication1.DuxpexService">

          <endpoint address="" binding="netTcpBinding" bindingConfiguration="netTcpBindConfig"

            contract="ConsoleApplication1.IDuxpexService" />

          <endpoint address="mex" binding="mexHttpBinding" contract="IMetadataExchange" />

          <endpoint address="mex" binding="mexTcpBinding" contract="IMetadataExchange" />

          <host>

            <baseAddresses>

              <add baseAddress="" />

              <add baseAddress="net.tcp://localhost:4505/DuxpexService/" />

            </baseAddresses>

          </host>

        </service>

        <service name="ConsoleApplication1.DomainService">

          <endpoint address="" behaviorConfiguration="DomainServiceBehavior"

            binding="webHttpBinding" bindingConfiguration="" contract="ConsoleApplication1.IDomainService">

            <identity>

              <dns value="localhost" />

            </identity>

          </endpoint>

          <endpoint address="mex" binding="mexHttpBinding" contract="IMetadataExchange" />

          <host>

            <baseAddresses>

              <add baseAddress="" />

            </baseAddresses>

          </host>

        </service>

      </services>

      

      <bindings>

        <netTcpBinding>

          <binding name="netTcpBindConfig">

            <security mode="None"/>

          </binding>

        </netTcpBinding>

      </bindings>

     

      <behaviors>

            <serviceBehaviors>

                <behavior name="">

                    <serviceMetadata httpGetEnabled="true"/>

                    <serviceDebug includeExceptionDetailInFaults="false"/>

                </behavior>

            </serviceBehaviors>

          <endpointBehaviors>

             <behavior name="DomainServiceBehavior">

                 <webHttp/>

            </behavior>

          </endpointBehaviors>

        </behaviors>

    </system.serviceModel>

 

<startup><supportedRuntime version="v4.0" sku=".NETFramework,Version=v4.0"/></startup>

</configuration>

 

TCP跨域策略文件ClientAccessPolicy.xml

<?xml version="1.0" encoding="utf-8"?>

<access-policy>

  <cross-domain-access>

    <policy>

      <allow-from http-request-headers="*">

        <domain uri="*" />

      </allow-from>

      <grant-to>

        <socket-resource port="4502-4534" protocol="tcp"/>

  <resource path="/" include-subpaths="true"/>

      </grant-to>

    </policy>

  </cross-domain-access>

</access-policy>

 

跨域服务：

    [ServiceContract]

    public interface IDomainService

    {

        [OperationContract]

        [WebGet(UriTemplate = "ClientAccessPolicy.xml")]

        Message ProvidePolicyFile();

    }

    public class DomainService : IDomainService

    {

        public System.ServiceModel.Channels.Message ProvidePolicyFile()

        {

            XmlReader reader = XmlReader.Create(@"ClientAccessPolicy.xml");

            System.ServiceModel.Channels.Message result = Message.CreateMessage(MessageVersion.None, "", reader);

            return result;

        }

    }

 

普通双向服务：

    [ServiceBehavior(ConcurrencyMode=ConcurrencyMode.Reentrant)]

    public class DuxpexService : IDuxpexService

    {

        public int GetData()

        {

            IserviceCallBack client = OperationContext.Current.GetCallbackChannel<IserviceCallBack>();

            client.ClientMethod();

            return 10;

        }

    }

    [ServiceContract(CallbackContract = typeof(IserviceCallBack))]

    public interface IDuxpexService

    {

        [OperationContract]

        int GetData();

    }

    public interface IserviceCallBack

    {

        [OperationContract(IsOneWay = true)]

        void ClientMethod();

    }

 

启动方法：

    class Program

    {

        static void Main(string[] args)

        {

            ServiceHost host = new ServiceHost(typeof(DuxpexService));

            ServiceHost domainhost = new ServiceHost(typeof(DomainService));

            domainhost.Open();

            host.Open();

            Console.WriteLine("Service Start...");

            Console.ReadLine();

            domainhost.Close();

            host.Close();

        }

    }

ClientAccessPolicy.xml