通过

TcpChannel 类

定义

命名空间:
System.Runtime.Remoting.Channels.Tcp
程序集:
System.Runtime.Remoting.dll

提供使用 TCP 协议传输消息的通道实现。

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
继承
Object
TcpChannel
实现
IChannel IChannelReceiver IChannelSender ISecurableChannel

示例

下面的代码示例演示如何使用 a TcpChannel 设置远程处理服务器及其客户端。 该示例包含三个部分：服务器、客户端和服务器和客户端使用的远程对象。

以下代码示例演示服务器：

#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();
    }
}

以下代码示例演示此服务器的客户端：

#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());
    }
}

下面的代码示例显示了服务器和客户端使用的远程对象：

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);
    }
}

注解

重要

使用不受信任的数据调用此类中的方法存在安全风险。 仅在确保数据受信任的情况下，再从该类调用方法。 有关详细信息，请参阅验证所有输入。

通道跨远程处理边界传输消息（例如，在应用程序域上的计算机之间）。 该TcpChannel类是一个方便类，它结合了类和TcpServerChannel类的功能TcpClientChannel。

.NET框架远程处理基础结构使用通道来传输远程呼叫。 当客户端调用远程对象时，调用将序列化为客户端通道发送并由服务器通道接收的消息。 然后对其进行反序列化和处理。 任何返回的值都由服务器通道传输，并由客户端通道接收。

若要执行其他消息处理，可以指定传递所有TcpChannel消息的实现IClientChannelSinkProvider。IServerChannelSinkProvider

对象TcpChannel具有可在配置文件（通过调用静态RemotingConfiguration.Configure方法）或以编程方式（将集合传递给IDictionaryTcpChannel构造函数）中设置的关联配置属性。

构造函数

名称 说明
TcpChannel()

初始化类的新实例 TcpChannel ，仅激活客户端通道，而不是服务器通道。
TcpChannel(IDictionary, IClientChannelSinkProvider, IServerChannelSinkProvider)

使用指定的配置属性和接收器初始化类的新实例 TcpChannel 。
TcpChannel(Int32)

使用侦听指定端口的服务器通道初始化类的新实例 TcpChannel 。

属性

名称 说明
ChannelData

获取通道特定的数据。
ChannelName

获取当前通道的名称。
ChannelPriority

获取当前通道的优先级。
IsSecured

获取或设置一个布尔值，该值指示当前通道是否安全。

方法

名称 说明
CreateMessageSink(String, Object, String)

返回一个通道消息接收器，该接收器将消息传送到指定的 URL 或通道数据对象。
Equals(Object)

确定指定对象是否等于当前对象。

(继承自 Object)
GetHashCode()

用作默认哈希函数。

(继承自 Object)
GetType()

获取当前实例的 Type。

(继承自 Object)
GetUrlsForUri(String)

返回具有指定 URI 的对象的所有 URL 的数组，这些 URL 托管在当前 TcpChannel对象上。
MemberwiseClone()

创建当前 Object的浅表副本。

(继承自 Object)
Parse(String, String)

从指定的 URL 中提取通道 URI 和远程已知对象 URI。
StartListening(Object)

指示当前通道开始侦听请求。
StopListening(Object)

指示当前通道停止侦听请求。
ToString()

返回一个表示当前对象的字符串。

(继承自 Object)

适用于