WCF信道工厂Channel Factory

ChannelFactory<TChannel> 类
一个创建不同类型通道的工厂，客户端使用这些通道将消息发送到不同配置的服务终结点。
命名空间:   System.ServiceModel

语法
public class ChannelFactory<TChannel> : ChannelFactory, IChannelFactory<TChannel>,
    IChannelFactory, ICommunicationObject

类型参数
TChannel
由通道工厂生成的通道类型。 此类型必须为 IOutputChannel 或 IRequestChannel。

备注
使用此泛型类可实现一些更高级的方案，在这些方案中有创建通道工厂（可用于创建多个通道类型）的要求。
以编程方式添加行为时，可以在创建任何通道之前将行为添加到 Behaviors 上相应的 ChannelFactory 属性。 有关代码示例，请参见“示例”部分。

/// <summary>
/// 下面的示例演示如何创建通道工厂并用它来创建和管理通道
/// </summary>
public static void Main()
{
    BasicHttpBinding binding = new BasicHttpBinding();
    EndpointAddress address = new EndpointAddress("http://localhost:8000/ChannelApp");
    ChannelFactory<IRequestChannel> factory = new ChannelFactory<IRequestChannel>(binding, address);

    IRequestChannel channel = factory.CreateChannel();
    channel.Open();
    Message request = Message.CreateMessage(MessageVersion.Soap11, "hello");
    Message reply = channel.Request(request);
    Console.Out.WriteLine(reply.Headers.Action);
    reply.Close();
    channel.Close();
    factory.Close();
}

/// <summary>
/// 下面的代码示例演示如何在工厂创建通道对象前，以编程方式插入客户端行为。
/// </summary>
public class Client
{
  public static void Main()
  {
    try
    {
      // Picks up configuration from the config file.
      ChannelFactory<ISampleServiceChannel> factory
        = new ChannelFactory<ISampleServiceChannel>("WSHttpBinding_ISampleService");

      // Add the client side behavior programmatically to all created channels.
      factory.Endpoint.Behaviors.Add(new EndpointBehaviorMessageInspector());

      ISampleServiceChannel wcfClientChannel = factory.CreateChannel();

      // Making calls.
      Console.WriteLine("Enter the greeting to send: ");
      string greeting = Console.ReadLine();
      Console.WriteLine("The service responded: " + wcfClientChannel.SampleMethod(greeting));

      Console.WriteLine("Press ENTER to exit:");
      Console.ReadLine();

      // Done with service.
      wcfClientChannel.Close();
      Console.WriteLine("Done!");
    }
    catch (TimeoutException timeProblem)
    {
      Console.WriteLine("The service operation timed out. " + timeProblem.Message);
      Console.Read();
    }
    catch (FaultException<SampleFault> fault)
    {
      Console.WriteLine("SampleFault fault occurred: {0}", fault.Detail.FaultMessage);
      Console.Read();
    }
    catch (CommunicationException commProblem)
    {
      Console.WriteLine("There was a communication problem. " + commProblem.Message);
      Console.Read();
    }
  }