通过TCP端口接收数据

问题描述

我开发了一个通过TCP端口接收数据的Sub，该数据从RTU设备发送.我的代码工作正常，我只有一个问题，似乎可以解决问题了，对您的帮助也将不胜感激:)

问题:我的服务器可以正常工作几个小时，然后它将停止接收数据，如果我关闭应用程序并再次打开它，则它将再次接收数据.几乎就像端口停止响应一样，我需要重新启动它.

这是我的示例代码，您能否为我检查一下，并告知可能是我的问题，以及如果您有适合我的示例代码

Hi,

I have developed a Sub that receives data over a TCP Port, The data gets send from a RTU Device. My code works fine i only have one problem and can seem to get it sorted out and any help will really be appreciated :)

Problem : My server will work fine for a few hours and then it will stop receiving the data, if i close the application and open it again then it receives the data again. It almost as if the port stops responding and the i need to restart it.

Here is my sample code can u please check it for me and advise what can be my problem and if u have sample code for me

    Private Sub StartProcess()
    '// SET THE LISTENER TO LISTEN ON PORT
    Dim serverSocket As New TcpListener(4050)
    '// DeCLARE VERIBALS
    Dim iCounter As Integer
    '// START THE LISTENER FOR SERVER
    serverSocket.Start()
    '// WRITE MESSAGE TO UI
    '// WRITE MESSAGE TO UI
    Console.WriteLine(" ")
    Console.WriteLine("***** Server Started on Port:4050 *****")
    Console.WriteLine(" ")

    iCounter = 1
    '// START INFINITE LOOP
    For iCounter = 1 To 2
        iCounter = 1
        Try

            '// DECLARE NETWORK STREAM
            Dim mySocket As Socket = serverSocket.AcceptSocket()
            NetworkStream = New NetworkStream(mySocket)
            '// SET THE BYTE LENGTH
            Dim lngByte As Long = 29
            Dim bytesFrom(lngByte) As Byte
            '// READ AND WRITE BYTES FROM NETWORK STREAM
            NetworkStream.Read(bytesFrom, 0, lngByte)
            NetworkStream.Write(bytesFrom, 0, lngByte)
            '// CONVERT BYTES TO STRING
            dataFromClient = BitConverter.ToString(bytesFrom)
            '// CLOSE SOCKET
            mySocket.Close()
        Catch ex As Exception
        End Try
    Next
    serverSocket.Stop()
    ' msg("exit")
    'Console.ReadLine()
End Sub

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