检测在C＃.NET应用程序停机？ [英] Detect Application Shutdown in C# NET?

问题描述

我写一个小控制台应用程序（将跑作为服务），基本上启动它运行时一个Java应用程序，自行关闭，如果在Java应用程序关闭，并关闭了Java应用程序，如果它关闭。

我想我有前两个工作正常，但我不知道如何检测，当.NET应用程序正在关闭，这样我就可以关闭Java应用之前，这种事情发生。谷歌搜索只返回了一堆东西有关检测的Windows关闭。

谁能告诉我怎么可以处理一部分，如果其余的看起来不错？

 命名空间MinecraftDaemon
{
    类节目
    {
        公共静态无效LaunchMinecraft（字符串文件，字符串memoryValue）
        {
            字符串memParams =-Xmx+ memoryValue +M+-Xms+ memoryValue +M;
            字符串的args = memParams +罐子+文件+NOGUI;
            的ProcessStartInfo processInfo =新的ProcessStartInfo（java.exe的，参数）;
            processInfo.CreateNoWindow = TRUE;
            processInfo.UseShellExecute = FALSE;

            尝试
            {
                使用（流程minecraftProcess =的Process.Start（processInfo））
                {
                    minecraftProcess.WaitForExit（）;
                }
            }
            抓住
            {
                //日志错误
            }
        }

        静态无效的主要（字串[] args）
        {
            参数的CommandLine =新的参数（参数）;

            如果（的CommandLine [档案] = NULL和放大器;！＆安培;！的CommandLine [记忆] = NULL）
            {
                //启动应用程序
                LaunchMinecraft（的CommandLine [档案]，命令行[记忆]）;
            }
            其他
            {
                LaunchMinecraft（minecraft_server.jar，1024）;
            }
        }
    }
}
 

解决方案

您需要在您的主要方法注册此事件：

  Application.ApplicationExit + =新的EventHandler（AppEvents.OnApplicationExit）;
 

和添加事件处理

 公共无效OnApplicationExit（对象发件人，EventArgs的）
{
    尝试
    {
        Console.WriteLine（应​​用程序正在关闭。）;
    }
    赶上（NotSupportedException异常）
    {
    }
}
 

I am writing a small console application (will be ran as a service) that basically starts a Java app when it is running, shuts itself down if the Java app closes, and shuts down the Java app if it closes.

I think I have the first two working properly, but I don't know how to detect when the .NET application is shutting down so that I can shutdown the Java app prior to that happening. Google search just returns a bunch of stuff about detecting Windows shutting down.

Can anyone tell me how I can handle that part and if the rest looks fine?

namespace MinecraftDaemon
{
    class Program
    {
        public static void LaunchMinecraft(String file, String memoryValue)
        {
            String memParams = "-Xmx" + memoryValue + "M" + " -Xms" + memoryValue + "M ";
            String args = memParams + "-jar " + file + " nogui";
            ProcessStartInfo processInfo = new ProcessStartInfo("java.exe", args);
            processInfo.CreateNoWindow = true;
            processInfo.UseShellExecute = false;

            try
            {
                using (Process minecraftProcess = Process.Start(processInfo))
                {
                    minecraftProcess.WaitForExit();
                }
            }
            catch
            {
                // Log Error
            }
        }

        static void Main(string[] args)
        {
            Arguments CommandLine = new Arguments(args);

            if (CommandLine["file"] != null && CommandLine["memory"] != null)
            {
                // Launch the Application
                LaunchMinecraft(CommandLine["file"], CommandLine["memory"]);
            }
            else
            {
                LaunchMinecraft("minecraft_server.jar", "1024");
            }
        }
    }
}

解决方案

You will need to register this event in your Main method:

Application.ApplicationExit += new EventHandler(AppEvents.OnApplicationExit);

and add the event handler

public void OnApplicationExit(object sender, EventArgs e)
{
    try
    {
        Console.WriteLine("The application is shutting down.");
    }
    catch(NotSupportedException)
    {
    }
}

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