如何在Windows服务C#中设置TcpListener

Question

我是一个Windows服务的初学者，我有一个控制台应用程序用于在客户端和服务器之间传输文件。现在我想将我的服务器应用程序转换为Windows服务以便同时监听多个客户端。我将我的控制台应用程序代码放置在onstart()中。但是，在部署Windows服务后，它无法正常工作或监听。有什么建议吗？

- eurekha_ananth

---

你能从运行服务的同一台机器上使用telnet吗？ - ABH

Answer 1

这里有一篇关于在Windows服务中编写TCP监听器的完整文章。虽然有点旧了，但也许它能帮到你。

- ABH

Answer 2

你好，我知道这个问题已经存在很久了，我查看了许多关于StackOverflow或其他网站的文章，但没有一个让我满意。最头疼的是：它是一个Windows服务，在服务启动时监听器的while循环不应该被阻塞。

最终，我自己想出了一个解决方案，也许不太友好，但非常简单并且正常工作（我同时打开了3个telnet到这个服务器，并且它按照我的期望工作）:-)

以下是代码：

`protected override void OnStart(string[] args)
{
        tcpServerStart(); 
}

private void tcpServerStart()
{
    try
    {
        IPAddress ipAddress = IPAddress.Parse("127.0.0.1");
        //port 5555, or any port number you want
        listener = new TcpListener(ipAddress, 5555);  
        listener.Start();


        var whileThread = new Thread(() =>
        {
            while (true)
            {
                // in order to avoid while loop turn into an infinite loop, 
                // we have to use AcceptTcpClient() to block it.
                TcpClient client = listener.AcceptTcpClient(); 


                // for each connection we just fork a thread to handle it.
                var childThread = new Thread(() =>
                {

                    // Get a stream object for reading and writing
                    NetworkStream stream = client.GetStream(); // not blocking call

                    StreamReader streamreader = new StreamReader(client.GetStream(), Encoding.ASCII);
                    string line = null;

                    // below while loop is your logic code, change it to your needs.
                    // defined "<EOF>" as mine quit message 
                    while ((line = streamreader.ReadLine()) != "<EOF>") 
                    {
                     // WriteToFile is a function of mineto log system status
                        WriteToFile(line); 
                    }

                    stream.Close();
                    client.Close();
                });

                childThread.Start();

            } // end of while(true) loop
        });
        whileThread.Start();
    }
    catch (Exception e)
    {
    }
}  '  

- Mike Xue

Answer 3

此服务器开启线程，否则无法运行服务。

protected override void OnStart(string[] args)
    {
        TcpServer server=new TcpServer();
        server.Start();
    }

class TcpServer
{
    // clase prar crear un listener
    private TcpListener server;

    private bool isRunning;
    private int port = 13000;
    public void Start()
    {
        // client found.
        // create a thread to handle communication
        Thread tServer = new Thread(new ParameterizedThreadStart(StartThread));
        tServer.Start();
    }

    public void StartThread(object o)
    {
        //iniciar configuraciones
        Configuracion.init();
        // crear un nuevo servidor
        server = new TcpListener(IPAddress.Any, port);
        //inicializar el servidor
        server.Start();
        //variable para indicar queesta corriendo el server
        isRunning = true;
        LoopClients();//thread
    }}
public void LoopClients()
    {
        while (isRunning)
        {
            // wait for client connection
            TcpClient newClient = server.AcceptTcpClient();

            // client found.
            // create a thread to handle communication
            Thread t = new Thread(new ParameterizedThreadStart(HandleClient));
            t.Start(newClient);

        }
    }

- Hector Medina