如何从服务器控制客户端 [英] How to control client from server

问题描述

嗨！
我创建了两个通过套接字进行通信的应用程序，一个是客户端，另一个是服务器.我希望有人告诉我如何从服务器控制客户端.

请告诉我从哪里开始以及如何开始.

提前谢谢！



这是服务器

Hi!
I have created two applications communicating over sockets, one being the client and the other being a server. I want someone to tell me how I can control the client from the server.

Please tell me where and how to start.

Thanks in advance!



here is the Server

Imports System.Net.Sockets

Imports System.Threading
Imports System.Windows.Forms
Imports System.IO


Public Class broadcast



    Private conn As Socket
    Private readthread As Thread
    Private socketstream As NetworkStream
    Private writer As BinaryWriter
    Dim c As String

    Private reader As BinaryReader
    Public Sub New()
        MyBase.New()



        readthread = New Thread(AddressOf RunServer)
        readthread.Start()



    End Sub

    Public Sub RunServer()
        Dim listener As New TcpListener(5234)
        Dim counter As Integer = 1
        Try

            listener.Start()
            While True

                Dim b As String

                b = "C:\Users\Public\Videos\Sample Videos\Wildlife.wmv" ''

                conn = listener.AcceptSocket
                socketstream = New NetworkStream(conn)
                writer = New BinaryWriter(socketstream)
                reader = New BinaryReader(socketstream)

                Dim theReplay As String = ""
                Select Case c ''here i need to control the clinet play,pause,mute....etc but  this select statment did''nt worked 
                    Case "play"
                        frmMain.AxWindowsMediaPlayer1.Ctlcontrols.play()



                End Select
                Try



                    writer.Write(b)

                    writer.Write(c)


                    ''Catch inputputputexception As IOException
                Catch inputputputexception As Exception
                    MessageBox.Show("Clinet application closing")
                Finally

                    writer.Close()
                    reader.Close()
                    socketstream.Close()
                    conn.Close()
                    counter += 1

                End Try

            End While

        Catch inpitoutputException As IOException
            MessageBox.Show("Server application Closing")

        End Try
    End Sub


End Class

衣襟:

the Clinet :

<pre lang="msil">Imports System.Net.Sockets
Imports System.Windows.Forms
Imports System.IO
Imports System.Threading
Public Class recieve

    Private output As NetworkStream
    Private reader As BinaryReader
    Private writer As BinaryWriter
    Private message As String = ""
    Private readthred As Thread
    Public Sub New()
        MyBase.New()

        readthred = New Thread(AddressOf runClinet)
       readthred.Start()

    End Sub

    Public Sub runClinet()
        Dim clinet As TcpClient
        Try
            clinet = New TcpClient()
            clinet.Connect("127.0.0.1", 5234)
            output = clinet.GetStream()
            writer = New BinaryWriter(output)
            reader = New BinaryReader(output)
            Try
                               Dim r As String

                message = reader.ReadString'' Here must recive the video and action of the controls
                               frmMain.AxWindowsMediaPlayer1.URL = message
                frmMain.Playlist.Items.Add(message)
                MessageBox.Show(message & ":" & frmMain.Playlist.Items.Count)
                       Catch inputoutputException As IOException
                MessageBox.Show("Clinet application Closing")
            Finally
                writer.Close()
                reader.Close()
                output.Close()
                clinet.Close()
            End Try
            
        Catch inputoutputException As IOException
            MessageBox.Show("Clinet application Close")
        End Try
    End Sub
End Class

推荐答案

有许多方法可以实现客户端/服务器应用程序. Internet上已对最基本的内容进行了全面描述，因此您可以搜索适当的实现.检查以下文章: http://www.switchonthecode.com/tutorials/csharp-tutorial -simple-threaded-tcp-server [ ^ ]
关于

Hi,
there are plenty of ways in implementing a client/server applications. The most basic ones are described fully in the internet, so you can search for the appropriate implementation. Check the following article: http://www.switchonthecode.com/tutorials/csharp-tutorial-simple-threaded-tcp-server[^]
Regards

严格来说，只要您说从服务器控制客户端"，至少在此转义上，这一切立即超出了客户端-服务器范式.我真的很感谢这种想法，因为纯"客户端-服务器体系结构非常局限性或对许多应用程序都要求轮询(总是无效).

它与inversion of control的概念有关，请参见 http://en.wikipedia.org/wiki/Inversion_of_control [ ^ ].另请参阅本文档底部的非常有用的参考，例如观察者模式( http://en.wikipedia.org/wiki/Observer_pattern [ ^ ])，推送器/订阅者( http://en.wikipedia.org/wiki/Publish/订阅 [ ^ ])等等.

由于您没有分享您正在考虑的控制和工作流程类型，因此我只能根据您过去回答类似主题时提出的一些建议向您提出建议:
来自同一端口号的多个客户端 [

Strictly speaking, as soon as you say "control client from server", all this immediately goes beyond the client-server paradigm, at least in the narrow sense of this turn. I really appreciate it come to this idea as the "pure" client-server architecture is very limiting or entailing (always ineffective) polling for many applications.

It is related to the idea of inversion of control, see http://en.wikipedia.org/wiki/Inversion_of_control[^]. Please also see the very useful references on the bottom of this document, such as Observer pattern (http://en.wikipedia.org/wiki/Observer_pattern[^]), Pulisher/Subscriber (http://en.wikipedia.org/wiki/Publish/subscribe[^]) and more.

As you don''t share what kind of control and work flow you''re thinking of, I can only suggest you some ideas from my past answer on a similar topic:
Multple clients from same port Number[^].

—SA

据我了解，最接近服务器上控制客户端的定义是bot-server/bot-client体系结构有时称为 C& C (命令和控制).我想，周围没有多少人愿意详细解释这个话题(尽管这很有趣).
谢尔盖·吉普林(Sergey Chepurin).

As i understand, the closest to the definition to control client from server is bot-server/bot-client architecture sometimes called C&C (command and control). I guess, there are not so many people around that are ready to explain this topic in detail (though it is interesting one).
Sergey Chepurin.

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