TcpChannel Classe

Définition

public ref class TcpChannel : System::Runtime::Remoting::Channels::IChannelReceiver, System::Runtime::Remoting::Channels::IChannelSender

public ref class TcpChannel : System::Runtime::Remoting::Channels::IChannelReceiver, System::Runtime::Remoting::Channels::IChannelSender, System::Runtime::Remoting::Channels::ISecurableChannel

public class TcpChannel : System.Runtime.Remoting.Channels.IChannelReceiver, System.Runtime.Remoting.Channels.IChannelSender

public class TcpChannel : System.Runtime.Remoting.Channels.IChannelReceiver, System.Runtime.Remoting.Channels.IChannelSender, System.Runtime.Remoting.Channels.ISecurableChannel

type TcpChannel = class
    interface IChannelReceiver
    interface IChannelSender
    interface IChannel

type TcpChannel = class
    interface IChannelReceiver
    interface IChannelSender
    interface IChannel
    interface ISecurableChannel

type TcpChannel = class
    interface IChannelReceiver
    interface IChannel
    interface IChannelSender
    interface ISecurableChannel

Public Class TcpChannel
Implements IChannelReceiver, IChannelSender

Public Class TcpChannel
Implements IChannelReceiver, IChannelSender, ISecurableChannel

Héritage

Object

TcpChannel

Implémente

IChannel IChannelReceiver IChannelSender ISecurableChannel

Exemples

L’exemple de code suivant montre comment utiliser un TcpChannel pour configurer un serveur de communication à distance et son client. L’exemple contient trois parties : un serveur, un client et un objet distant utilisé par le serveur et le client.

L’exemple de code suivant montre un serveur :

#using <System.Runtime.Remoting.dll>
#using <System.dll>
#using <common.dll>

using namespace System;
using namespace System::Runtime::Remoting;
using namespace System::Runtime::Remoting::Channels;
using namespace System::Runtime::Remoting::Channels::Tcp;
using namespace System::Security::Permissions;

[SecurityPermission(SecurityAction::Demand)]
int main(array<String^>^ args)
{
    // Create the server channel.
    TcpChannel^ serverChannel = gcnew TcpChannel(9090);

    // Register the server channel.
    ChannelServices::RegisterChannel(serverChannel);

    // Show the name of the channel.
    Console::WriteLine("The name of the channel is {0}.", 
        serverChannel->ChannelName);

    // Show the priority of the channel.
    Console::WriteLine("The priority of the channel is {0}.", 
        serverChannel->ChannelPriority);

    // Show the URIs associated with the channel.
    ChannelDataStore^ data = (ChannelDataStore^) serverChannel->ChannelData;
    for each (String^ uri in data->ChannelUris)
    {
        Console::WriteLine("The channel URI is {0}.", uri);
    }

    // Expose an object for remote calls.
    RemotingConfiguration::RegisterWellKnownServiceType(
        RemoteObject::typeid, "RemoteObject.rem", 
        WellKnownObjectMode::Singleton);

    // Parse the channel's URI.
    array<String^>^ urls = serverChannel->GetUrlsForUri("RemoteObject.rem");
    if (urls->Length > 0)
    {
        String^ objectUrl = urls[0];
        String^ objectUri;
        String^ channelUri = serverChannel->Parse(objectUrl, objectUri);
        Console::WriteLine("The object URL is {0}.", objectUrl);
        Console::WriteLine("The object URI is {0}.", objectUri);
        Console::WriteLine("The channel URI is {0}.", channelUri);
    }
        
    // Wait for the user prompt.
    Console::WriteLine("Press ENTER to exit the server.");
    Console::ReadLine();
}

using System;
using System.Runtime.Remoting;
using System.Runtime.Remoting.Channels;
using System.Runtime.Remoting.Channels.Tcp;

public class Server
{
    public static void Main(string[] args)
    {
        // Create the server channel.
        TcpChannel serverChannel = new TcpChannel(9090);

        // Register the server channel.
        ChannelServices.RegisterChannel(serverChannel);

        // Show the name of the channel.
        Console.WriteLine("The name of the channel is {0}.",
            serverChannel.ChannelName);

        // Show the priority of the channel.
        Console.WriteLine("The priority of the channel is {0}.",
            serverChannel.ChannelPriority);

        // Show the URIs associated with the channel.
        ChannelDataStore data = (ChannelDataStore) serverChannel.ChannelData;
        foreach (string uri in data.ChannelUris)
        {
            Console.WriteLine("The channel URI is {0}.", uri);
        }

        // Expose an object for remote calls.
        RemotingConfiguration.RegisterWellKnownServiceType(
            typeof(RemoteObject), "RemoteObject.rem",
            WellKnownObjectMode.Singleton);

        // Parse the channel's URI.
        string[] urls = serverChannel.GetUrlsForUri("RemoteObject.rem");
        if (urls.Length > 0)
        {
            string objectUrl = urls[0];
            string objectUri;
            string channelUri = serverChannel.Parse(objectUrl, out objectUri);
            Console.WriteLine("The object URL is {0}.", objectUrl);
            Console.WriteLine("The object URI is {0}.", objectUri);
            Console.WriteLine("The channel URI is {0}.", channelUri);
        }

        // Wait for the user prompt.
        Console.WriteLine("Press ENTER to exit the server.");
        Console.ReadLine();
    }
}

L’exemple de code suivant montre un client pour ce serveur :

#using <System.Runtime.Remoting.dll>
#using <System.dll>
#using <common.dll>

using namespace System;
using namespace System::Runtime::Remoting;
using namespace System::Runtime::Remoting::Channels;
using namespace System::Runtime::Remoting::Channels::Tcp;
using namespace System::Security::Permissions;

int main(array<String^>^ args)
{
    // Create the channel.
    TcpChannel^ clientChannel = gcnew TcpChannel();

    // Register the channel.
    ChannelServices::RegisterChannel(clientChannel, false);

    // Register as client for remote object.
    WellKnownClientTypeEntry^ remoteType = gcnew WellKnownClientTypeEntry(
        RemoteObject::typeid,"tcp://localhost:9090/RemoteObject.rem");
    RemotingConfiguration::RegisterWellKnownClientType(remoteType);

    // Create a message sink.
    String^ objectUri;
    System::Runtime::Remoting::Messaging::IMessageSink^ messageSink = 
        clientChannel->CreateMessageSink(
            "tcp://localhost:9090/RemoteObject.rem", nullptr,
            objectUri);
    Console::WriteLine("The URI of the message sink is {0}.", 
        objectUri);
    if (messageSink != nullptr)
    {
        Console::WriteLine("The type of the message sink is {0}.", 
            messageSink->GetType()->ToString());
    }

    // Create an instance of the remote object.
    RemoteObject^ service = gcnew RemoteObject(); 

    // Invoke a method on the remote object.
    Console::WriteLine("The client is invoking the remote object.");
    Console::WriteLine("The remote object has been called {0} times.",
        service->GetCount());
}

using System;
using System.Runtime.Remoting;
using System.Runtime.Remoting.Channels;
using System.Runtime.Remoting.Channels.Tcp;

public class Client
{
    public static void Main(string[] args)
    {
        // Create the channel.
        TcpChannel clientChannel = new TcpChannel();

        // Register the channel.
        ChannelServices.RegisterChannel(clientChannel, false);

        // Register as client for remote object.
        WellKnownClientTypeEntry remoteType = new WellKnownClientTypeEntry(
            typeof(RemoteObject),"tcp://localhost:9090/RemoteObject.rem");
        RemotingConfiguration.RegisterWellKnownClientType(remoteType);

        // Create a message sink.
        string objectUri;
        System.Runtime.Remoting.Messaging.IMessageSink messageSink =
            clientChannel.CreateMessageSink(
                "tcp://localhost:9090/RemoteObject.rem", null,
                out objectUri);
        Console.WriteLine("The URI of the message sink is {0}.",
            objectUri);
        if (messageSink != null)
        {
            Console.WriteLine("The type of the message sink is {0}.",
                messageSink.GetType().ToString());
        }

        // Create an instance of the remote object.
        RemoteObject service = new RemoteObject();

        // Invoke a method on the remote object.
        Console.WriteLine("The client is invoking the remote object.");
        Console.WriteLine("The remote object has been called {0} times.",
            service.GetCount());
    }
}

L’exemple de code suivant montre l’objet distant utilisé par le serveur et le client :

using namespace System;
using namespace System::Runtime::Remoting;

// Remote object.
public ref class RemoteObject: public MarshalByRefObject
{
private:
   int callCount;

public:
   RemoteObject()
      : callCount( 0 )
   {}

   int GetCount()
   {
      callCount++;
      return (callCount);
   }

};

using System;
using System.Runtime.Remoting;

// Remote object.
public class RemoteObject : MarshalByRefObject
{
    private int callCount = 0;

    public int GetCount()
    {
        callCount++;
        return(callCount);
    }
}

Remarques

Les canaux transportent les messages au-delà des limites de communication à distance (par exemple, entre des ordinateurs sur des domaines d’application). La TcpChannel classe est une classe pratique qui combine les fonctionnalités de la TcpClientChannel classe et de la TcpServerChannel classe .

Les canaux sont utilisés par l’infrastructure de communication à distance .NET Framework pour transporter les appels distants. Lorsqu’un client effectue un appel à un objet distant, l’appel est sérialisé dans un message envoyé par un canal client et reçu par un canal serveur. Il est ensuite désérialisé et traité. Toutes les valeurs retournées sont transmises par le canal serveur et reçues par le canal client.

Pour effectuer un traitement supplémentaire des messages, vous pouvez spécifier les implémentations de et IClientChannelSinkProviderIServerChannelSinkProvider par le biais desquelles tous les messages traités par le TcpChannel sont passés.

Un TcpChannel objet a des propriétés de configuration associées qui peuvent être définies au moment de l’exécution dans un fichier de configuration (en appelant la méthode statique RemotingConfiguration.Configure ) ou par programmation (en passant une IDictionary collection au TcpChannel constructeur). Pour plus d’informations sur les propriétés de configuration de canal, consultez Propriétés de configuration du canal et du formateur.

Constructeurs

Propriétés

Méthodes

S’applique à