WPF服务器启动器切换视图后丢失CMD进程连接问题求助

基于.NET Framework开发WPF服务器启动器，用于替代手动调整文件的操作。当前已实现通过GUI与服务器批处理文件交互，但切换视图（如进入设置、日志页面等）时，会丢失与运行中CMD进程的连接，输入输出停止工作，尽管服务器进程仍在运行。

关键组件说明 #

• tb：用于命令输入的TextBox
• lb：显示服务器状态的Label
• CurrentServer：代表各控件中选中的服务器实例

已尝试方案 #

• 使用类似逻辑切换到PowerShell
• 在独立线程中运行进程
• 不依赖批处理文件，直接通过代码参数启动进程
• 在主窗口中存储命令处理器实例
• 所有UI操作通过Dispatcher.Invoke执行
• 借助AI工具寻求解决方案

相关代码 #

private Process cmdProcess;
private bool isServerOnline = false;

public void ComandPromptRun()
{
    MainWindow mainWindow = (MainWindow)Application.Current.MainWindow;

    // Check if the process for the current server already exists
    if (mainWindow.MinecraftJavaCmdProcesses.ContainsKey(mainWindow.CurrentServer) && mainWindow.MinecraftJavaCmdProcesses[mainWindow.CurrentServer] != null)
    {
        cmdProcess = mainWindow.MinecraftJavaCmdProcesses[mainWindow.CurrentServer];

        if (cmdProcess != null && !cmdProcess.HasExited)
        {
            // Reattach output event handler
            cmdProcess.OutputDataReceived -= CmdProcess_OutputDataReceived; 
            cmdProcess.OutputDataReceived += CmdProcess_OutputDataReceived;

            // Ensure the process is still reading output
            if (cmdProcess.StandardOutput.BaseStream.CanRead)
            {
                cmdProcess.BeginOutputReadLine(); // Reattach reading
            }
            else
            {
                MessageBox.Show("The output stream is unavailable. Please restart the process.");
            }

            // Load previous logs if any
            foreach (var log in mainWindow.MinecraftJavaLogs[mainWindow.CurrentServer])
            {
                Dispatcher.Invoke(() =>
                {
                    TB_ComandPromptOutput.AppendText(log + Environment.NewLine);
                });
            }

            return; // Avoid starting a new process
        }
        else
        {
            MessageBox.Show("Process has exited or is unavailable. You will need to restart the server.");
            mainWindow.MinecraftJavaCmdProcesses[mainWindow.CurrentServer] = null;
        }
    }

    // Start a new process if it doesn't exist
    StartNewMinecraftProcess(mainWindow);
}

private void StartNewMinecraftProcess(MainWindow mainWindow)
{
    string selectedServerPath = mainWindow.MinecraftJavaServers[mainWindow.CurrentServer];

    // Start a new thread to run the server process
    new Thread(() =>
    {
        try
        {
            MessageBox.Show($"Starting server at: {selectedServerPath}");
            Thread.CurrentThread.IsBackground = true;

            cmdProcess = new Process
            {
                StartInfo = new ProcessStartInfo
                {
                    FileName = $@"{selectedServerPath}\Run.bat",
                    WorkingDirectory = selectedServerPath,
                    UseShellExecute = false,
                    RedirectStandardOutput = true,
                    RedirectStandardInput = true,
                    CreateNoWindow = true
                }
            };

            cmdProcess.OutputDataReceived += CmdProcess_OutputDataReceived;
            cmdProcess.Start();
            cmdProcess.BeginOutputReadLine();

            // Store the new process in the dictionary
            mainWindow.MinecraftJavaCmdProcesses[mainWindow.CurrentServer] = cmdProcess;
        }
        catch (Exception ex)
        {
            Dispatcher.Invoke(() => MessageBox.Show($"Failed to start server: {ex.Message}"));
        }

    }).Start();
}

private void CmdProcess_OutputDataReceived(object sender, DataReceivedEventArgs e)
{
    if (!string.IsNullOrEmpty(e.Data))
    {
        Dispatcher.Invoke(() =>
        {
            // Append to TextBox
            TB_ComandPromptOutput.AppendText(e.Data + Environment.NewLine);

            // Store log in the MainWindow dictionary
            MainWindow mainWindow = (MainWindow)Application.Current.MainWindow;
            if (!mainWindow.MinecraftJavaLogs.ContainsKey(mainWindow.CurrentServer))
            {
                mainWindow.MinecraftJavaLogs[mainWindow.CurrentServer] = new List<string>();
            }
            mainWindow.MinecraftJavaLogs[mainWindow.CurrentServer].Add(e.Data);
        });
    }
}

public void CmdProcess_IncomeDataSent(string inputData)
{
    if (!string.IsNullOrEmpty(inputData))
    {
        Dispatcher.Invoke(() =>
        {
            if (cmdProcess != null && !cmdProcess.HasExited)
            {
                if (cmdProcess.StandardInput != null && !cmdProcess.StandardInput.BaseStream.CanWrite)
                {
                    MessageBox.Show("The input stream is closed or unavailable.");
                    return;
                }

                cmdProcess.StandardInput.WriteLine(inputData);
                cmdProcess.StandardInput.Flush();
            }
            else
            {
                MessageBox.Show("Command prompt process is not running or has exited.");
            }
        });
    }
}

private void TB_ComandPromptInput_KeyDown(object sender, KeyEventArgs e)
{
    if (e.Key == Key.Enter)
    {
        CmdProcess_IncomeDataSent(TB_ComandPromptInput.Text);
        if (TB_ComandPromptInput.Text.ToLower() == "stop")
        {
            lb_IsServerOnline.Content = "Offline";
            lb_IsServerOnline.Foreground = new SolidColorBrush(Colors.Red);
            TB_ComandPromptInput.IsEnabled = false;
            isServerOnline = false;
        }
        TB_ComandPromptInput.Text = string.Empty;
    }
}

内容的提问来源于stack exchange，提问作者Damien Davey