VB.NET MessageQueue构造函数代码示例

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本文整理汇总了VB.NET中System.Messaging.MessageQueue.MessageQueue构造函数的典型用法代码示例。如果您正苦于以下问题：VB.NET MessageQueue构造函数的具体用法？VB.NET MessageQueue怎么用？VB.NET MessageQueue使用的例子？那么恭喜您, 这里精选的构造函数代码示例或许可以为您提供帮助。您也可以进一步了解该构造函数所在类System.Messaging.MessageQueue的用法示例。

在下文中一共展示了MessageQueue构造函数的2个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于我们的系统推荐出更棒的VB.NET代码示例。

示例1: MyNewQueue

' 导入命名空间
Imports System.Messaging

Public Class MyNewQueue


        
        ' Provides an entry point into the application.
        '		 
        ' This example demonstrates several ways to set
        ' a queue's path.
        

        Public Shared Sub Main()

            ' Create a new instance of the class.
            Dim myNewQueue As New MyNewQueue()

            myNewQueue.SendPublic()
            myNewQueue.SendPrivate()
            myNewQueue.SendByLabel()
            myNewQueue.SendByFormatName()
            myNewQueue.MonitorComputerJournal()
            myNewQueue.MonitorQueueJournal()
            myNewQueue.MonitorDeadLetter()
            myNewQueue.MonitorTransactionalDeadLetter()

            Return

        End Sub


        ' References public queues.
        Public Sub SendPublic()

            Dim myQueue As New MessageQueue(".\myQueue")
            myQueue.Send("Public queue by path name.")

            Return

        End Sub


        ' References private queues.
        Public Sub SendPrivate()

            Dim myQueue As New MessageQueue(".\Private$\myQueue")
            myQueue.Send("Private queue by path name.")

            Return

        End Sub


        ' References queues by label.
        Public Sub SendByLabel()

            Dim myQueue As New MessageQueue("Label:TheLabel")
            myQueue.Send("Queue by label.")

            Return

        End Sub


        ' References queues by format name.
        Public Sub SendByFormatName()

            Dim myQueue As New _
                MessageQueue("FormatName:Public=" + _
                    "5A5F7535-AE9A-41d4-935C-845C2AFF7112")
            myQueue.Send("Queue by format name.")

            Return

        End Sub


        ' References computer journal queues.
        Public Sub MonitorComputerJournal()

            Dim computerJournal As New MessageQueue(".\Journal$")

            While True

                Dim journalMessage As Message = _
                    computerJournal.Receive()

                ' Process the journal message.

            End While

            Return
        End Sub


        ' References queue journal queues.
        Public Sub MonitorQueueJournal()

            Dim queueJournal As New _
                            MessageQueue(".\myQueue\Journal$")

            While True

                Dim journalMessage As Message = _
                    queueJournal.Receive()

                ' Process the journal message.

            End While

            Return
        End Sub


        ' References dead-letter queues.
        Public Sub MonitorDeadLetter()
            Dim deadLetter As New MessageQueue(".\DeadLetter$")

            While True

                Dim deadMessage As Message = deadLetter.Receive()

                ' Process the dead-letter message.

            End While

            Return

        End Sub


        ' References transactional dead-letter queues.
        Public Sub MonitorTransactionalDeadLetter()

            Dim TxDeadLetter As New MessageQueue(".\XactDeadLetter$")

            While True

                Dim txDeadLetterMessage As Message = _
                    TxDeadLetter.Receive()

                ' Process the transactional dead-letter message.

            End While

            Return

        End Sub

End Class

开发者ID:VB.NET开发者，项目名称:System.Messaging，代码行数:151，代码来源:MessageQueue

示例2: MyNewQueue

' 导入命名空间
Imports System.Messaging

Public Class MyNewQueue


        ' Provides an entry point into the application.
        '		 
        ' This example connects to a message queue, and
        ' requests exclusive read access to the queue.
 

        Public Shared Sub Main()

            ' Create a new instance of the class.
            Dim myNewQueue As New MyNewQueue()

            ' Output the count of Lowest priority messages.
            myNewQueue.GetExclusiveAccess()

            Return

        End Sub


  
        ' Requests exlusive read access to the queue. If
        ' access is granted, receives a message from the 
        ' queue.
  

        Public Sub GetExclusiveAccess()

            Try

                ' Request exclusive read access to the queue.
                Dim myQueue As New MessageQueue(".\myQueue", True)

                ' Receive a message. This is where a SharingViolation 
                ' exception would be thrown.
                Dim myMessage As Message = myQueue.Receive()

            Catch e As MessageQueueException

                ' Handle request for denial of exclusive read access.
                If e.MessageQueueErrorCode = _
                    MessageQueueErrorCode.SharingViolation Then

                    Console.WriteLine("Denied exclusive read access.")

                End If

                ' Handle other sources of a MessageQueueException.

                ' Handle other exceptions as necessary.

            End Try

            Return

        End Sub

End Class

开发者ID:VB.NET开发者，项目名称:System.Messaging，代码行数:63，代码来源:MessageQueue

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