Question

我有一个Windows服务，OnStart方法包含一个未启动的应用程序。我添加了

System.Diagnostics.Debugger.Launch();

在OnStart（）内部并进入代码。

protected override void OnStart(string[] args)
    { 
        System.Diagnostics.Debugger.Launch();
        System.Timers.Timer aTimer = new System.Timers.Timer(500); //500 MilliSeconds
        // Hook up the Elapsed event for the timer.
        aTimer.Elapsed += new ElapsedEventHandler(OnTimedEvent);
        // Set the Interval to 2 seconds (2000 milliseconds).
        //aTimer.Interval = 600000;  //10 minutes //2000; //2 seconds (2000 mili seconds)
        aTimer.AutoReset = false;
        aTimer.Enabled = true;
        // Keep the timer alive until the end of Main.  This allows OnStart to close in a timely fashion.
        GC.KeepAlive(aTimer);

    }

    private static void OnTimedEvent(object source, ElapsedEventArgs e)
    {
        IvrApplication.Start();// The code didn't reach here.
    }

根本没有执行IvrApplication.Start（）。所以我认为我的安装不正确。

我的安装代码：

[MTAThread]
    static void Main(string[] args)
    {
        if (args.Length == 0)
        {
            if (IsInstalled() && !Environment.UserInteractive)
            {
                // Run your service normally.
                ServiceBase[] ServicesToRun = new ServiceBase[] { new IvrService() };
                ServiceBase.Run(ServicesToRun);
            }
            else
            {
                if (Environment.UserInteractive)
                    Console.WriteLine("Debug the service only.");
                if (!IsInstalled())
                    Console.WriteLine("Service is not installed..");
                if (svcPath.ToLower() != "services.exe")
                {
                    // In an interactive session.
                    Application.EnableVisualStyles();
                    Application.SetCompatibleTextRenderingDefault(false);
                    Application.Run(new IvrInteractive());
                    return;
                }
            }
        }
        else if (args.Length == 1)
        {
            switch (args[0])
            {
                case "-install":
                    InstallService();
                    // Here to install the service.
                    break;
                case "-uninstall":
                    StopService();
                    UninstallService();
                    break;

对于InstallService，我们有：

    public static bool  InstallService(string svcPath, string svcName, string svcDispName)
    {
        #region Constants declaration.
        int SC_MANAGER_CREATE_SERVICE = 0x0002;
        int SERVICE_WIN32_OWN_PROCESS = 0x00000010;
        //int SERVICE_DEMAND_START = 0x00000003;
        int SERVICE_ERROR_NORMAL = 0x00000001;
        int STANDARD_RIGHTS_REQUIRED = 0xF0000;
        int SERVICE_QUERY_CONFIG = 0x0001;
        int SERVICE_CHANGE_CONFIG = 0x0002;
        int SERVICE_QUERY_STATUS = 0x0004;
        int SERVICE_ENUMERATE_DEPENDENTS = 0x0008;
        int SERVICE_START = 0x0010;
        int SERVICE_STOP = 0x0020;
        int SERVICE_PAUSE_CONTINUE = 0x0040;
        int SERVICE_INTERROGATE = 0x0080;
        int SERVICE_USER_DEFINED_CONTROL = 0x0100;
        int SERVICE_ALL_ACCESS = (STANDARD_RIGHTS_REQUIRED |
        SERVICE_QUERY_CONFIG |
        SERVICE_CHANGE_CONFIG |
        SERVICE_QUERY_STATUS |
        SERVICE_ENUMERATE_DEPENDENTS |
        SERVICE_START |
        SERVICE_STOP |
        SERVICE_PAUSE_CONTINUE |
        SERVICE_INTERROGATE |
        SERVICE_USER_DEFINED_CONTROL);
        int SERVICE_AUTO_START = 0x00000002;
        #endregion Constants declaration.
        try
        {
            IntPtr sc_handle = OpenSCManager(null, null, SC_MANAGER_CREATE_SERVICE);
            if (sc_handle.ToInt32() != 0)
            {
                IntPtr sv_handle = CreateService(sc_handle, svcName, svcDispName, SERVICE_ALL_ACCESS, SERVICE_WIN32_OWN_PROCESS, SERVICE_AUTO_START, SERVICE_ERROR_NORMAL, svcPath, null, 0, null, null, null);
                if (sv_handle.ToInt32() == 0)
                {
                    CloseServiceHandle(sc_handle);
                    return false;
                }
                else
                {
                    //now trying to start the service
                    int i = StartService(sv_handle, 0, null);
                    // If the value i is zero, then there was an error starting the service.
                    // note: error may arise if the service is already running or some other problem.
                    if (i == 0)
                    {
                        Console.WriteLine("Couldnt start service");
                        return false;
                    }
                    Console.WriteLine("Service started successfully");
                    CloseServiceHandle(sc_handle);
                    return true;
                }
            }
            else
            {
                Console.WriteLine("SCM not opened successfully");
                return false;
            }
        }
        catch (Exception e)
        {
            throw e;
        }
    }

Answer 1

您正在错误地使用GC.KeepAlive方法。

引用指定的对象，使其不符合垃圾条件集合从当前例程的开始到其中的点这种方法叫做。

http://msdn.microsoft.com/en-us/library/system.gc.keepalive%28v=vs.110%29.aspx

只需将aTimer声明为Windows服务类的字段，不要使用GC.KeepAlive。

Answer 2

我发现了这个问题。我的代码是对的，只是别的东西。我忘了将项目类型设置为windows服务。

我的Windows服务安装不正确？

2 个答案: