Cómo utilizar ChannelFactory

La clase ChannelFactory genérica se usa en escenarios avanzados que requieren la creación de un generador de canal que se puede utilizar para crear más de un canal.

Crear y utilizar la clase ChannelFactory

1. Compile y ejecute un servicio Windows Communication Foundation (WCF). Para obtener más información, vea , Diseño e implementación de servicios, Configuración de servicios y Servicios de hospedaje.

2. Utilice Herramienta de utilidad de metadatos de ServiceModel (Svcutil.exe) para generar el contrato (interfaz) para el cliente.

3. En el código de cliente, utilice la clase ChannelFactory para crear varios agentes de escucha de extremo.

Ejemplo

Imports System
Imports System.ServiceModel

' This code generated by svcutil.exe.
<ServiceContract()>  _
Interface IMath
    <OperationContract()>  _
    Function Add(ByVal A As Double, ByVal B As Double) As Double 
End Interface 

public class Math
    Implements IMath

    Function Add(ByVal A As Double, ByVal B As Double) As Double Implements IMath.Add
       Return A + B
    End Function
End Class

Public Class Test
    Public Shared Sub Main()
    End Sub

    Public Sub Run()
        ' This code is written by an application developer.
        ' Create a channel factory.
        Dim myBinding As New BasicHttpBinding
    Dim myEndpoint As New EndpointAddress("https://localhost/MathService/Ep1")

        Dim myChannelFactory As ChannelFactory(Of IMath) = _
        New ChannelFactory(Of IMath) (myBinding, myEndpoint) 

        'Create a channel.
        Dim wcfClient1 As IMath = myChannelFactory.CreateChannel()
        Dim s As Integer = wcfClient1.Add(3, 39)
        Console.WriteLine(s.ToString())
    Dim clientChannel As IClientChannel = CType(wcfClient1, IClientChannel)
        clientChannel.Close()

        ' Create another channel
        Dim wcfClient2 As IMath = myChannelFactory.CreateChannel()
        s = wcfClient2.Add(15, 27)
        Console.WriteLine(s.ToString())
    clientChannel = CType(wcfClient2, IClientChannel)
        clientChannel.Close()
    myChannelFactory.Close()
    End Sub
End Class

using System;
using System.ServiceModel;

// This code generated by svcutil.exe.
[ServiceContract()]
interface IMath
{
    [OperationContract()]
     double Add(double A, double B);
}

public class Math : IMath
{
    public double Add(double A, double B) 
    {
        return A + B;
    }
}

public sealed class Test
{
    static void Main()
    {
        // Code not shown.
    }

    public void Run()
    {
        // This code is written by an application developer.
        // Create a channel factory.
        BasicHttpBinding myBinding = new BasicHttpBinding();
    
        EndpointAddress myEndpoint = new EndpointAddress("https://localhost/MathService/Ep1");

        ChannelFactory<IMath> myChannelFactory = new ChannelFactory<IMath>(myBinding, myEndpoint);

        // Create a channel.
        IMath wcfClient1 = myChannelFactory.CreateChannel();
        double s = wcfClient1.Add(3, 39);
        Console.WriteLine(s.ToString());
    ((IClientChannel)wcfClient1).Close();

        // Create another channel.
        IMath wcfClient2 = myChannelFactory.CreateChannel();
        s = wcfClient2.Add(15, 27);
        Console.WriteLine(s.ToString());
    ((IClientChannel)wcfClient2).Close();
    myChannelFactory.Close();
    }
}