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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.
    }

IvrApplication.Start() 根本没有执行。所以我假设我的安装不正确。

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;

至于 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;
        }
    }
4

2 回答 2

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您错误地使用了 GC.KeepAlive 方法。

引用指定的对象,这使得它从当前例程开始到调用此方法的位置都没有资格进行垃圾收集。

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。

于 2013-11-05T14:18:20.143 回答
0

我发现了这个问题。我的代码是正确的,只是别的。我忘记将项目类型设置为 Windows 服务。

于 2013-11-05T18:37:01.063 回答