Message コンストラクタ (Object)
アセンブリ: System.Messaging (system.messaging.dll 内)
構文
解説
このオーバーロードを使用して、body パラメータによって指定された Body を含む Message クラスの新しいインスタンスを作成します。bodyパラメータに指定できるのは、テキスト文字列、構造体オブジェクト、クラス インスタンス、埋め込みオブジェクトなど、シリアル化できる任意のオブジェクトです。Message が送信される前に Formatter プロパティを変更しない限り、本文は、XmlMessageFormatter を使ってシリアル化されます。Send を呼び出す前に Body プロパティまたは Formatter プロパティを変更すると、メッセージは新しいプロパティ値に従ってシリアル化されます。
XmlMessageFormatter は疎結合であるため、この形式を使用する場合に、送信側と受信側のオブジェクト型が同じである必要はありません。ActiveXMessageFormatter と BinaryMessageFormatter は、データをシリアル化してバイナリ表現にします。ActiveXMessageFormatter は COM コンポーネントを送受信するときに使用されます。
Message のインスタンスの初期プロパティ値を次の表に示します。
AcknowledgeType | AcknowledgeType.None |
AdministrationQueue | null 参照 (Visual Basic では Nothing) |
AppSpecific | 0 |
AttachSenderId | |
AuthenticationProviderName | |
AuthenticationProviderType | CryptoProviderType.RSA_FULL |
BodyStream | Stream.null |
BodyType | 0 |
ConnectorType | Guid.Empty |
CorrelationId | 空の文字列 ("") |
DestinationSymmetricKey | |
EncryptionAlgorithm | EncryptionAlgorithm.RC2 |
XmlMessageFormatter | |
HashAlgorithm | HashAlgorithm.MD5 |
空の文字列 ("") | |
MessagePriority.Normal | |
Recoverable | |
ResponseQueue | null 参照 (Visual Basic では Nothing) |
SenderCertificate | |
TimeToBeReceived | Message.InfiniteTimeout |
TimeToReachQueue | Message.InfiniteTimeout |
TransactionStatusQueue | null 参照 (Visual Basic では Nothing) |
UseAuthentication | |
UseDeadLetterQueue | |
UseEncryption | |
UseJournalQueue | |
UseTracing |
新しいキューを作成し、オーダーを含むメッセージをキューに送信し、最後にメッセージを受信するコード例を次に示します。
Imports System Imports System.Messaging Imports System.Drawing Imports System.IO ' The following example ' sends to a queue and receives from a queue. Public Class Order Public orderId As Integer Public orderTime As DateTime End Class 'Order ' Provides a container class for the example. 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 Order to a queue. Public Sub SendMessage() Try ' Create a new order and set values. Dim sentOrder As New Order() sentOrder.orderId = 3 sentOrder.orderTime = DateTime.Now ' Connect to a queue on the local computer. Dim myQueue As New MessageQueue(".\myQueue") ' Create the new order. Dim myMessage As New Message(sentOrder) ' Send the order 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 order. Public Sub ReceiveMessage() ' 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 XmlMessageFormatter(New Type() {GetType(Order)}) Try ' Receive and format the message. Dim myMessage As Message = myQueue.Receive() Dim myOrder As Order = CType(myMessage.Body, Order) ' Display message information. Console.WriteLine(("Order ID: " + myOrder.orderId.ToString())) Console.WriteLine(("Sent: " + myOrder.orderTime.ToString())) ' Handle invalid serialization format. Catch e As InvalidOperationException Console.WriteLine(e.Message) End Try ' Catch other exceptions as necessary. Return End Sub 'ReceiveMessage End Class 'MyNewQueue
using System; using System.Messaging; using System.Drawing; using System.IO; namespace MyProject { // The following example // sends to a queue and receives from a queue. public class Order { public int orderId; public DateTime orderTime; }; /// <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 Order to a queue. //************************************************** public void SendMessage() { try { // Create a new order and set values. Order sentOrder = new Order(); sentOrder.orderId = 3; sentOrder.orderTime = DateTime.Now; // Connect to a queue on the local computer. MessageQueue myQueue = new MessageQueue(".\\myQueue"); // Create the new order. Message myMessage = new Message(sentOrder); // Send the order to the queue. myQueue.Send(myMessage); } catch(ArgumentException e) { Console.WriteLine(e.Message); } return; } //************************************************** // Receives a message containing an order. //************************************************** public void ReceiveMessage() { // 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 XmlMessageFormatter(new Type[] {typeof(MyProject.Order)}); try { // Receive and format the message. Message myMessage = myQueue.Receive(); Order myOrder = (Order)myMessage.Body; // Display message information. Console.WriteLine("Order ID: " + myOrder.orderId.ToString()); Console.WriteLine("Sent: " + myOrder.orderTime.ToString()); } catch (MessageQueueException) { // Handle Message Queuing exceptions. } // Handle invalid serialization format. catch (InvalidOperationException e) { Console.WriteLine(e.Message); } // 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; ref class Order { public: int orderId; DateTime orderTime; }; ref class MyNewQueue { public: 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 ); } } void SendMessage() { try { // Create a new order and set values. Order^ sentOrder = gcnew Order; sentOrder->orderId = 3; sentOrder->orderTime = DateTime::Now; // Connect to a queue on the local computer. MessageQueue^ myQueue = gcnew MessageQueue( ".\\myQueue" ); // Create the new order. Message^ myMessage = gcnew Message( sentOrder ); // Send the order to the queue. myQueue->Send( myMessage ); } catch ( ArgumentException^ e ) { Console::WriteLine( e->Message ); } return; } void ReceiveMessage() { // Connect to the a queue on the local computer. MessageQueue^ myQueue = gcnew MessageQueue( ".\\myQueue" ); // Set the formatter to indicate body contains an Order. array<Type^>^p = gcnew array<Type^>(1); p[ 0 ] = Order::typeid; myQueue->Formatter = gcnew XmlMessageFormatter( p ); try { // Receive and format the message. Message^ myMessage = myQueue->Receive(); Order^ myOrder = dynamic_cast<Order^>(myMessage->Body); // Display message information. Console::WriteLine( "Order ID: {0}", myOrder->orderId ); Console::WriteLine( "Sent: {0}", myOrder->orderTime ); } catch ( MessageQueueException^ ) { // Handle Message Queuing exceptions. } // Handle invalid serialization format. catch ( InvalidOperationException^ e ) { Console::WriteLine( e->Message ); } // Catch other exceptions as necessary. return; } }; 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.*; // The following example // sends to a queue and receives from a queue. public class Order { public int orderId; public DateTime orderTime; } //Order /// <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 Order to a queue. //************************************************** public void SendMessage() { try { // Create a new order and set values. Order sentOrder = new Order(); sentOrder.orderId = 3; sentOrder.orderTime = DateTime.get_Now(); // Connect to a queue on the local computer. MessageQueue myQueue = new MessageQueue(".\\myQueue"); // Create the new order. Message myMessage = new Message(sentOrder); // Send the order to the queue. myQueue.Send(myMessage); } catch (ArgumentException e) { Console.WriteLine(e.get_Message()); } return; } //SendMessage //************************************************** // Receives a message containing an order. //************************************************** public void ReceiveMessage() { // 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 XmlMessageFormatter(new Type[] { MyProject.Order.class.ToType() })); try { // Receive and format the message. Message myMessage = myQueue.Receive(); Order myOrder = (Order)myMessage.get_Body(); // Display message information. Console.WriteLine("Order ID: " + Convert.ToString(myOrder.orderId)); Console.WriteLine("Sent: " + myOrder.orderTime.ToString()); } catch (MessageQueueException exp) { // Handle Message Queuing exceptions. } // Handle invalid serialization format. catch (InvalidOperationException e) { Console.WriteLine(e.get_Message()); } // Catch other exceptions as necessary. return; } //ReceiveMessage } //MyNewQueue
プラットフォーム
Windows 98, Windows 2000 SP4, Windows CE, Windows Millennium Edition, Windows Mobile for Pocket PC, Windows Mobile for Smartphone, 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。
参照
Message コンストラクタ (Object, IMessageFormatter)
アセンブリ: System.Messaging (system.messaging.dll 内)
構文
このオーバーロードを使用して、body パラメータによって指定され、本文をシリアル化するための有効なフォーマッタを使用する Body を格納する、Message クラスの新しいインスタンスを作成します。bodyパラメータに指定できるのは、テキスト文字列、構造体オブジェクト、クラス インスタンス、埋め込みオブジェクトなど、シリアル化できる任意のオブジェクトです。Send を呼び出す前に Body プロパティまたは Formatter プロパティを変更すると、メッセージは新しいプロパティ値に従ってシリアル化されます。
XmlMessageFormatter は疎結合であるため、この形式を使用する場合に、送信側と受信側のオブジェクト型が同じである必要はありません。ActiveXMessageFormatter と BinaryMessageFormatter は、データをシリアル化してバイナリ表現にします。ActiveXMessageFormatter は COM コンポーネントを送受信するときに使用されます。
Message のインスタンスの初期プロパティ値を次の表に示します。
AcknowledgeType | AcknowledgeType.None |
AdministrationQueue | null 参照 (Visual Basic では Nothing) |
AppSpecific | 0 |
AttachSenderId | |
AuthenticationProviderName | |
AuthenticationProviderType | CryptoProviderType.RSA_FULL |
BodyStream | Stream.null |
BodyType | 0 |
ConnectorType | Guid.Empty |
CorrelationId | 空の文字列 ("") |
DestinationSymmetricKey | |
EncryptionAlgorithm | EncryptionAlgorithm.RC2 |
HashAlgorithm | HashAlgorithm.MD5 |
空の文字列 ("") | |
MessagePriority.Normal | |
Recoverable | |
ResponseQueue | null 参照 (Visual Basic では Nothing) |
SenderCertificate | |
TimeToBeReceived | Message.InfiniteTimeout |
TimeToReachQueue | Message.InfiniteTimeout |
TransactionStatusQueue | null 参照 (Visual Basic では Nothing) |
UseAuthentication | |
UseDeadLetterQueue | |
UseEncryption | |
UseJournalQueue | |
UseTracing |
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
プラットフォーム
Windows 98, Windows 2000 SP4, Windows CE, Windows Millennium Edition, Windows Mobile for Pocket PC, Windows Mobile for Smartphone, 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。
参照
Message コンストラクタ
アセンブリ: Microsoft.Build.Tasks (microsoft.build.tasks.dll 内)
構文
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。
参照
Message コンストラクタ
オーバーロードの一覧
名前 | 説明 |
---|---|
Message () | Message クラスの新しいインスタンスを、空の本文で初期化します。 .NET Compact Framework によってサポートされています。 |
Message (Object) | 指定したオブジェクトをメッセージの本文にシリアル化するために XmlMessageFormatter を使用して、Message クラスの新しいインスタンスを初期化します。 .NET Compact Framework によってサポートされています。 |
Message (Object, IMessageFormatter) | 指定したオブジェクトをメッセージの本文にシリアル化するために指定したフォーマッタを使用して、Message クラスの新しいインスタンスを初期化します。 .NET Compact Framework によってサポートされています。 |
Message コンストラクタ
アセンブリ: System.Web.Services (system.web.services.dll 内)
構文
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。
参照
Message コンストラクタ ()
アセンブリ: System.Messaging (system.messaging.dll 内)
構文
このオーバーロードを使用して、本文が空の Message クラスの新しいインスタンスを作成します。
Message オブジェクトを送信する前に、Body プロパティまたは BodyStream プロパティのいずれかを指定します。このうち Body プロパティには、テキスト文字列、構造体オブジェクト、クラス インスタンス、埋め込みオブジェクトなど、シリアル化できる任意のオブジェクトを使用できます。
メッセージの内容を BodyStream プロパティに直接書き込む以外は、メッセージを送信する前に Formatter プロパティを設定します。本文は、MessageQueue インスタンスで Send メソッドが呼び出された時点の Formatter プロパティの値を使ってシリアル化されます。
XmlMessageFormatter は疎結合であるため、この形式を使用する場合に、送信側と受信側のオブジェクト型が同じである必要はありません。ActiveXMessageFormatter と BinaryMessageFormatter は、データをシリアル化してバイナリ表現にします。ActiveXMessageFormatter は COM コンポーネントを送受信するときに使用されます。
Message のインスタンスの初期プロパティ値を次の表に示します。
AcknowledgeType | AcknowledgeType.None |
AdministrationQueue | null 参照 (Visual Basic では Nothing) |
AppSpecific | 0 |
AttachSenderId | |
AuthenticationProviderName | |
AuthenticationProviderType | CryptoProviderType.RSA_FULL |
null 参照 (Visual Basic では Nothing) | |
BodyStream | Stream.null |
BodyType | 0 |
ConnectorType | Guid.Empty |
CorrelationId | 空の文字列 ("") |
DestinationSymmetricKey | |
EncryptionAlgorithm | EncryptionAlgorithm.RC2 |
XmlMessageFormatter | |
HashAlgorithm | HashAlgorithm.MD5 |
空の文字列 ("") | |
MessagePriority.Normal | |
Recoverable | |
ResponseQueue | null 参照 (Visual Basic では Nothing) |
SenderCertificate | |
TimeToBeReceived | Message.InfiniteTimeout |
TimeToReachQueue | Message.InfiniteTimeout |
TransactionStatusQueue | null 参照 (Visual Basic では Nothing) |
UseAuthentication | |
UseDeadLetterQueue | |
UseEncryption | |
UseJournalQueue | |
UseTracing |
優先度が異なる 2 つのメッセージをキューに送信し、順番に取得するコード例を次に示します。
Imports System Imports System.Messaging 'Provides a container class for the example. 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() ' Send messages to a queue. myNewQueue.SendMessage(MessagePriority.Normal, "First Message Body.") myNewQueue.SendMessage(MessagePriority.Highest, "Second Message Body.") ' Receive messages from a queue. myNewQueue.ReceiveMessage() myNewQueue.ReceiveMessage() Return End Sub 'Main ' Sends a string message to a queue. Public Sub SendMessage(priority As MessagePriority, messageBody As String) ' Connect to a queue on the local computer. Dim myQueue As New MessageQueue(".\myQueue") ' Create a new message. Dim myMessage As New Message() If priority > MessagePriority.Normal Then myMessage.Body = "High Priority: " + messageBody Else myMessage.Body = messageBody End If ' Set the priority of the message. myMessage.Priority = priority ' Send the Order to the queue. myQueue.Send(myMessage) Return End Sub 'SendMessage ' Receives a message. Public Sub ReceiveMessage() ' Connect to the a queue on the local computer. Dim myQueue As New MessageQueue(".\myQueue") ' Set the queue to read the priority. By default, it ' is not read. myQueue.MessageReadPropertyFilter.Priority = True ' Set the formatter to indicate body contains a string. myQueue.Formatter = New XmlMessageFormatter(New Type() {GetType(String)}) Try ' Receive and format the message. Dim myMessage As Message = myQueue.Receive() ' Display message information. Console.WriteLine(("Priority: " + myMessage.Priority.ToString())) Console.WriteLine(("Body: " + myMessage.Body.ToString())) ' Handle invalid serialization format. Catch e As InvalidOperationException Console.WriteLine(e.Message) End Try ' Catch other exceptions as necessary. Return End Sub 'ReceiveMessage End Class 'MyNewQueue
using System; using System.Messaging; 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(); // Send messages to a queue. myNewQueue.SendMessage(MessagePriority.Normal, "First Message Body."); myNewQueue.SendMessage(MessagePriority.Highest, "Second Message Body."); // Receive messages from a queue. myNewQueue.ReceiveMessage(); myNewQueue.ReceiveMessage(); return; } //************************************************** // Sends a string message to a queue. //************************************************** public void SendMessage(MessagePriority priority, string messageBody) { // Connect to a queue on the local computer. MessageQueue myQueue = new MessageQueue(".\\myQueue"); // Create a new message. Message myMessage = new Message(); if(priority > MessagePriority.Normal) { myMessage.Body = "High Priority: " + messageBody; } else myMessage.Body = messageBody; // Set the priority of the message. myMessage.Priority = priority; // Send the Order to the queue. myQueue.Send(myMessage); return; } //************************************************** // Receives a message. //************************************************** public void ReceiveMessage() { // Connect to the a queue on the local computer. MessageQueue myQueue = new MessageQueue(".\\myQueue"); // Set the queue to read the priority. By default, it // is not read. myQueue.MessageReadPropertyFilter.Priority = true; // Set the formatter to indicate body contains a string. myQueue.Formatter = new XmlMessageFormatter(new Type[] {typeof(string)}); try { // Receive and format the message. Message myMessage = myQueue.Receive(); // Display message information. Console.WriteLine("Priority: " + myMessage.Priority.ToString()); Console.WriteLine("Body: " + myMessage.Body.ToString()); } catch (MessageQueueException) { // Handle Message Queuing exceptions. } // Handle invalid serialization format. catch (InvalidOperationException e) { Console.WriteLine(e.Message); } // Catch other exceptions as necessary. return; } } }
#using <system.dll> #using <system.messaging.dll> using namespace System; using namespace System::Messaging; /// <summary> /// Provides a container class for the example. /// </summary> ref class MyNewQueue { //************************************************** // Sends a string message to a queue. //************************************************** public: void SendMessage( MessagePriority priority, String^ messageBody ) { // Connect to a queue on the local computer. MessageQueue^ myQueue = gcnew MessageQueue( ".\\myQueue" ); // Create a new message. Message^ myMessage = gcnew Message; if ( priority > MessagePriority::Normal ) { myMessage->Body = "High Priority: {0}",messageBody; } else { myMessage->Body = messageBody; } // Set the priority of the message. myMessage->Priority = priority; // Send the Order to the queue. myQueue->Send( myMessage ); return; } //************************************************** // Receives a message. //************************************************** void ReceiveMessage() { // Connect to the a queue on the local computer. MessageQueue^ myQueue = gcnew MessageQueue( ".\\myQueue" ); // Set the queue to read the priority. By default, it // is not read. myQueue->MessageReadPropertyFilter->Priority = true; // Set the formatter to indicate body contains a String^. array<Type^>^ p = gcnew array<Type^>(1); p[ 0 ] = String::typeid; myQueue->Formatter = gcnew XmlMessageFormatter( p ); try { // Receive and format the message. Message^ myMessage = myQueue->Receive(); // Display message information. Console::WriteLine( "Priority: {0}", myMessage->Priority ); Console::WriteLine( "Body: {0}", myMessage->Body ); } catch ( MessageQueueException^ ) { // Handle Message Queuing exceptions. } // Handle invalid serialization format. catch ( InvalidOperationException^ e ) { Console::WriteLine( e->Message ); } // 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; // Send messages to a queue. myNewQueue->SendMessage( MessagePriority::Normal, "First Message Body." ); myNewQueue->SendMessage( MessagePriority::Highest, "Second Message Body." ); // Receive messages from a queue. myNewQueue->ReceiveMessage(); myNewQueue->ReceiveMessage(); return 0; }
package MyProject; import System.*; import System.Messaging.*; /// <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(); // Send messages to a queue. myNewQueue.SendMessage(MessagePriority.Normal, "First Message Body."); myNewQueue.SendMessage(MessagePriority.Highest, "Second Message Body."); // Receive messages from a queue. myNewQueue.ReceiveMessage(); myNewQueue.ReceiveMessage(); return; } //main //************************************************** // Sends a string message to a queue. //************************************************** public void SendMessage(MessagePriority priority, String messageBody) { // Connect to a queue on the local computer. MessageQueue myQueue = new MessageQueue(".\\myQueue"); // Create a new message. Message myMessage = new Message(); if (priority.CompareTo(MessagePriority.Normal) > 0) { myMessage.set_Body("High Priority: " + messageBody); } else { myMessage.set_Body(messageBody); } // Set the priority of the message. myMessage.set_Priority(priority); // Send the Order to the queue. myQueue.Send(myMessage); return; } //SendMessage //************************************************** // Receives a message. //************************************************** public void ReceiveMessage() { // Connect to the a queue on the local computer. MessageQueue myQueue = new MessageQueue(".\\myQueue"); // Set the queue to read the priority. By default, it // is not read. myQueue.get_MessageReadPropertyFilter().set_Priority(true); // Set the formatter to indicate body contains a string. myQueue.set_Formatter(new XmlMessageFormatter(new Type[] { String.class.ToType() })); try { // Receive and format the message. Message myMessage = myQueue.Receive(); // Display message information. Console.WriteLine("Priority: " + myMessage.get_Priority().ToString()); Console.WriteLine("Body: " + myMessage.get_Body().ToString()); } catch (MessageQueueException exp) { // Handle Message Queuing exceptions. } // Handle invalid serialization format. catch (InvalidOperationException e) { Console.WriteLine(e.get_Message()); } // Catch other exceptions as necessary. return; } //ReceiveMessage } //MyNewQueue
プラットフォーム
Windows 98, Windows 2000 SP4, Windows CE, Windows Millennium Edition, Windows Mobile for Pocket PC, Windows Mobile for Smartphone, 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。
参照
- Message コンストラクタのページへのリンク