BinaryMessageFormatter クラス
バイナリ形式を使用して、オブジェクト、または関連付けられたオブジェクトのグラフ全体を、メッセージ キューのメッセージの本文にシリアル化、またはメッセージ キューのメッセージの本文から逆シリアル化します。
名前空間: System.Messaging
アセンブリ: System.Messaging (system.messaging.dll 内)
構文
解説
使用例
継承階層
スレッド セーフ
プラットフォーム
バージョン情報
参照
アセンブリ: System.Messaging (system.messaging.dll 内)
構文解説BinaryMessageFormatter は、効率的で、ほとんどのオブジェクトのシリアル化に使用できます。シリアル化の結果、コンパクトになり、高速に解析できるようになりますが、XmlMessageFormatter とは異なり、疎結合されたメッセージ処理はできません。疎結合されているとは、クライアントとサーバーは送信および受信された型のバージョン管理を独立して行うことができるということです。
アプリケーションが MessageQueue クラスのインスタンスを使用してメッセージをキューに送信するときに、フォーマッタはオブジェクトをストリームにシリアル化し、メッセージ本文に挿入します。MessageQueue を使用してキューから読み取るときは、フォーマッタがメッセージ データを Message の Body プロパティに逆シリアル化します。
BinaryMessageFormatter のスループットは、XmlMessageFormatter のスループットよりも高速です。疎結合されたメッセージ処理よりも速度を優先する場合は BinaryMessageFormatter を使用します。
使用例Imports System Imports System.Messaging Imports System.Drawing Imports System.IO Namespace MyProj _ Public Class MyNewQueue '************************************************** ' Provides an entry point into the application. ' ' This example sends and receives a message from ' a queue. '************************************************** Public Shared Sub Main() ' Create a new instance of the class. Dim myNewQueue As New MyNewQueue() ' Create a queue on the local computer. CreateQueue(".\myQueue") ' Send a message to a queue. myNewQueue.SendMessage() ' Receive a message from a queue. myNewQueue.ReceiveMessage() Return End Sub 'Main '************************************************** ' Creates a new queue. '************************************************** Public Shared Sub CreateQueue(queuePath As String) Try If Not MessageQueue.Exists(queuePath) Then MessageQueue.Create(queuePath) Else Console.WriteLine((queuePath + " already exists.")) End If Catch e As MessageQueueException Console.WriteLine(e.Message) End Try End Sub 'CreateQueue '************************************************** ' Sends an image to a queue, using the BinaryMessageFormatter. '************************************************** Public Sub SendMessage() Try ' Create a new bitmap. ' The file must be in the \bin\debug or \bin\retail folder, or ' you must give a full path to its location. Dim myImage As Image = Bitmap.FromFile("SentImage.bmp") ' Connect to a queue on the local computer. Dim myQueue As New MessageQueue(".\myQueue") Dim myMessage As New Message(myImage, New BinaryMessageFormatter()) ' Send the image to the queue. myQueue.Send(myMessage) Catch e As ArgumentException Console.WriteLine(e.Message) End Try Return End Sub 'SendMessage '************************************************** ' Receives a message containing an image. '************************************************** Public Sub ReceiveMessage() Try ' Connect to the a queue on the local computer. Dim myQueue As New MessageQueue(".\myQueue") ' Set the formatter to indicate body contains an Order. myQueue.Formatter = New BinaryMessageFormatter() ' Receive and format the message. Dim myMessage As System.Messaging.Message = myQueue.Receive() Dim myImage As Bitmap = CType(myMessage.Body, Bitmap) ' This will be saved in the \bin\debug or \bin\retail folder. myImage.Save("ReceivedImage.bmp", System.Drawing.Imaging.ImageFormat.Bmp) 'Catch ' Handle Message Queuing exceptions. ' Handle invalid serialization format. Catch e As InvalidOperationException Console.WriteLine(e.Message) Catch e As IOException End Try ' Handle file access exceptions. ' Catch other exceptions as necessary. Return End Sub 'ReceiveMessage End Class 'MyNewQueue End Namespace 'MyProj
using System; using System.Messaging; using System.Drawing; using System.IO; namespace MyProject { /// <summary> /// Provides a container class for the example. /// </summary> public class MyNewQueue { //************************************************** // Provides an entry point into the application. // // This example sends and receives a message from // a queue. //************************************************** public static void Main() { // Create a new instance of the class. MyNewQueue myNewQueue = new MyNewQueue(); // Create a queue on the local computer. CreateQueue(".\\myQueue"); // Send a message to a queue. myNewQueue.SendMessage(); // Receive a message from a queue. myNewQueue.ReceiveMessage(); return; } //************************************************** // Creates a new queue. //************************************************** public static void CreateQueue(string queuePath) { try { if(!MessageQueue.Exists(queuePath)) { MessageQueue.Create(queuePath); } else { Console.WriteLine(queuePath + " already exists."); } } catch (MessageQueueException e) { Console.WriteLine(e.Message); } } //************************************************** // Sends an image to a queue, using the BinaryMessageFormatter. //************************************************** public void SendMessage() { try{ // Create a new bitmap. // The file must be in the \bin\debug or \bin\retail folder, or // you must give a full path to its location. Image myImage = Bitmap.FromFile("SentImage.bmp"); // Connect to a queue on the local computer. MessageQueue myQueue = new MessageQueue(".\\myQueue"); Message myMessage = new Message(myImage, new BinaryMessageFormatter()); // Send the image to the queue. myQueue.Send(myMessage); } catch(ArgumentException e) { Console.WriteLine(e.Message); } return; } //************************************************** // Receives a message containing an image. //************************************************** public void ReceiveMessage() { try { // Connect to the a queue on the local computer. MessageQueue myQueue = new MessageQueue(".\\myQueue"); // Set the formatter to indicate body contains an Order. myQueue.Formatter = new BinaryMessageFormatter(); // Receive and format the message. System.Messaging.Message myMessage = myQueue.Receive(); Bitmap myImage = (Bitmap)myMessage.Body; // This will be saved in the \bin\debug or \bin\retail folder. myImage.Save("ReceivedImage.bmp",System.Drawing.Imaging.ImageFormat.Bmp); } catch (MessageQueueException) { // Handle Message Queuing exceptions. } // Handle invalid serialization format. catch (InvalidOperationException e) { Console.WriteLine(e.Message); } catch (IOException e) { // Handle file access exceptions. } // Catch other exceptions as necessary. return; } } }
#using <system.dll> #using <system.messaging.dll> #using <system.drawing.dll> using namespace System; using namespace System::Messaging; using namespace System::Drawing; using namespace System::IO; /// <summary> /// Provides a container class for the example. /// </summary> ref class MyNewQueue { public: //************************************************* // Creates a new queue. //************************************************* static void CreateQueue( String^ queuePath ) { try { if ( !MessageQueue::Exists( queuePath ) ) { MessageQueue::Create( queuePath ); } else { Console::WriteLine( "{0} already exists.", queuePath ); } } catch ( MessageQueueException^ e ) { Console::WriteLine( e->Message ); } } //************************************************* // Sends an image to a queue, using the BinaryMessageFormatter. //************************************************* void SendMessage() { try { // Create a new bitmap. // The file must be in the \bin\debug or \bin\retail folder, or // you must give a full path to its location. Image^ myImage = Bitmap::FromFile( "SentImage::bmp" ); // Connect to a queue on the local computer. MessageQueue^ myQueue = gcnew MessageQueue( ".\\myQueue" ); Message^ myMessage = gcnew Message( myImage,gcnew BinaryMessageFormatter ); // Send the image to the queue. myQueue->Send( myMessage ); } catch ( ArgumentException^ e ) { Console::WriteLine( e->Message ); } return; } //************************************************* // Receives a message containing an image. //************************************************* void ReceiveMessage() { try { // Connect to the a queue on the local computer. MessageQueue^ myQueue = gcnew MessageQueue( ".\\myQueue" ); // Set the formatter to indicate body contains an Order. myQueue->Formatter = gcnew BinaryMessageFormatter; // Receive and format the message. Message^ myMessage = myQueue->Receive(); Bitmap^ myImage = static_cast<Bitmap^>(myMessage->Body); // This will be saved in the \bin\debug or \bin\retail folder. myImage->Save( "ReceivedImage::bmp", System::Drawing::Imaging::ImageFormat::Bmp ); } catch ( MessageQueueException^ ) { // Handle Message Queuing exceptions. } // Handle invalid serialization format. catch ( InvalidOperationException^ e ) { Console::WriteLine( e->Message ); } catch ( IOException^ e ) { // Handle file access exceptions. } // Catch other exceptions as necessary. return; } }; //************************************************* // Provides an entry point into the application. // // This example sends and receives a message from // a queue. //************************************************* int main() { // Create a new instance of the class. MyNewQueue^ myNewQueue = gcnew MyNewQueue; // Create a queue on the local computer. MyNewQueue::CreateQueue( ".\\myQueue" ); // Send a message to a queue. myNewQueue->SendMessage(); // Receive a message from a queue. myNewQueue->ReceiveMessage(); return 0; }
package MyProject; import System.*; import System.Messaging.*; import System.Drawing.*; import System.IO.*; /// <summary> /// Provides a container class for the example. /// </summary> public class MyNewQueue { //************************************************** // Provides an entry point into the application. // // This example sends and receives a message from // a queue. //************************************************** public static void main(String[] args) { // Create a new instance of the class. MyNewQueue myNewQueue = new MyNewQueue(); // Create a queue on the local computer. CreateQueue(".\\myQueue"); // Send a message to a queue. myNewQueue.SendMessage(); // Receive a message from a queue. myNewQueue.ReceiveMessage(); return; } //main //************************************************** // Creates a new queue. //************************************************** public static void CreateQueue(String queuePath) { try { if (!(MessageQueue.Exists(queuePath))) { MessageQueue.Create(queuePath); } else { Console.WriteLine(queuePath + " already exists."); } } catch (MessageQueueException e) { Console.WriteLine(e.get_Message()); } } //CreateQueue //************************************************** // Sends an image to a queue, using the BinaryMessageFormatter. //************************************************** public void SendMessage() { try { // Create a new bitmap. // The file must be in the \bin\debug or \bin\retail folder, or // you must give a full path to its location. Image myImage = Bitmap.FromFile("SentImage.bmp"); // Connect to a queue on the local computer. MessageQueue myQueue = new MessageQueue(".\\myQueue"); Message myMessage = new Message(myImage, new BinaryMessageFormatter()); // Send the image to the queue. myQueue.Send(myMessage); } catch (ArgumentException e) { Console.WriteLine(e.get_Message()); } return; } //SendMessage //************************************************** // Receives a message containing an image. //************************************************** public void ReceiveMessage() { try { // Connect to the a queue on the local computer. MessageQueue myQueue = new MessageQueue(".\\myQueue"); // Set the formatter to indicate body contains an Order. myQueue.set_Formatter(new BinaryMessageFormatter()); // Receive and format the message. System.Messaging.Message myMessage = myQueue.Receive(); Bitmap myImage = (Bitmap)myMessage.get_Body(); // This will be saved in the \bin\debug or \bin\retail folder. myImage.Save("ReceivedImage.bmp", System.Drawing.Imaging.ImageFormat.get_Bmp()); } catch (MessageQueueException exp) { // Handle Message Queuing exceptions. } // Handle invalid serialization format. catch (InvalidOperationException e) { Console.WriteLine(e.get_Message()); } catch (IOException e) { // Handle file access exceptions. } // Catch other exceptions as necessary. return; } //ReceiveMessage } //MyNewQueue
継承階層
System.Object
System.Messaging.BinaryMessageFormatter
System.Messaging.BinaryMessageFormatter
スレッド セーフプラットフォームWindows 98, Windows 2000 SP4, Windows Millennium Edition, Windows Server 2003, Windows XP Media Center Edition, Windows XP Professional x64 Edition, Windows XP SP2, Windows XP Starter Edition
開発プラットフォームの中には、.NET Framework によってサポートされていないバージョンがあります。サポートされているバージョンについては、「システム要件」を参照してください。
バージョン情報参照
関連項目
BinaryMessageFormatter メンバ
System.Messaging 名前空間
XmlMessageFormatter
ActiveXMessageFormatter クラス
Message.Formatter
MessageQueue.Formatter
BinaryMessageFormatter メンバ
System.Messaging 名前空間
XmlMessageFormatter
ActiveXMessageFormatter クラス
Message.Formatter
MessageQueue.Formatter
- BinaryMessageFormatter クラスのページへのリンク
