c# - TcpListener.AcceptSocket()在Windows服务中失败

Question

我有以下代码的实例，可以在Debug中或作为独立的Windows应用程序正确执行:

TcpListener tcpListener = new TcpListener(IPAddress.Any, 4554);
tcpListener.Start();

while (true)
{
    try
    {
        using (Socket socket = tcpListener.AcceptSocket())
        {
            // Code here is reached in Debug or as a Console Application
            // but not as a Windows Service
        }
    }
    catch (SocketException se)
    {
        // This is never reached
    }
    catch (Exception ex)
    {
        // This is never reached
    }
    finally
    {
        // This is never reached in the Windows Service
    }
}

但是，当我将其安装为Windows服务时，它在 tcpListener.AcceptSocket()上崩溃，并将以下内容记录到事件查看器中:

An unhandled exception ('System.Net.Sockets.SocketException') occurred in MyService.exe [768]. Just-In-Time debugging this exception failed with the following error: The operation attempted is not supported.

即使试图捕获异常，我也无法再记录任何内容。在Debug中单步执行代码不会完成任何操作，因为代码成功阻止了应用程序并等待客户端连接。

有没有一种方法可以为Windows服务实现呢？

Answer 1

usr的建议(和this answer)使我发现了代码中的一个错误。 ServiceBase类包含以下内容:

protected override void OnStart(string[] args)
{
    _worker = new Thread(ExecuteService);
    _worker.Start();
}

private void ExecuteService()
{
    for (;;)
    {
         if (_stop.WaitOne(1000))
        {
            new TcpServer().StartTcpServer();
            return;
        }
    }
}

正确的实现是删除 for循环，该循环重新实例化了监听器。这是最终代码:

protected override void OnStart(string[] args)
{
    _worker = new Thread(ExecuteService);
    _worker.Start();
}

private static void ExecuteService()
{
    new TcpServer().StartTcpServer();
}