Windows服务计划每天上午6:00运行一次

Question

我创建了一个Windows服务,我希望该服务将安排在每天早上6点运行.以下是我写的代码: -

public Service1()
{
    InitializeComponent();
}

protected override void OnStart(string[] args)
{
    try
    {
        ExtractDataFromSharePoint();
    }
    catch (Exception ex)
    {
        //Displays and Logs Message
        _loggerDetails.LogMessage = ex.ToString();
        _writeLog.LogDetails(_loggerDetails.LogLevel_Error, _loggerDetails.LogMessage);
    }
}

在上面的代码中,您可以看到在OnStart我正在调用函数的服务方法中ExtractDataFromSharePoint().我如何安排这个每天早上6点运行.

Answer 1

在这里,您有两种方法可以执行您的应用程序,每天早上6点运行.

1)创建一个控制台应用程序,并通过Windows调度程序在上午6点执行.

2)在Windows服务中创建一个定时器(System.Timers.Timer),它在每个定义的时间间隔内执行,在你的函数中,你必须检查系统时间是否= 6 AM然后执行你的代码

ServiceTimer = new System.Timers.Timer();
ServiceTimer.Enabled = true;
ServiceTimer.Interval = 60000 * Interval;
ServiceTimer.Elapsed += new System.Timers.ElapsedEventHandler(your function);

注意:在您的函数中,您必须编写代码才能在上午6点执行您的方法,而不是每次都执行

Answer 2

您不需要为此服务.只需创建一个常规控制台应用程序,然后使用Windows计划程序在早上6点运行您的程序.服务就是您需要程序一直运行的时间.

Answer 3

以下是每天早上6点在服务中运行的代码.

包括:

using System.Threading;

还要确保在类中声明您的计时器:

private System.Threading.Timer _timer = null;

下面的StartTimer函数包含开始时间和间隔时间,当前设置为从早上6点开始并每24小时运行一次.如果需要,您可以轻松地将其更改为在不同的时间和间隔开始.

 protected override void OnStart(string[] args)
    {
        // Pass in the time you want to start and the interval
        StartTimer(new TimeSpan(6, 0, 0), new TimeSpan(24, 0, 0));

    }
    protected void StartTimer(TimeSpan scheduledRunTime, TimeSpan timeBetweenEachRun) {
        // Initialize timer
        double current = DateTime.Now.TimeOfDay.TotalMilliseconds;
        double scheduledTime = scheduledRunTime.TotalMilliseconds;
        double intervalPeriod = timeBetweenEachRun.TotalMilliseconds;
        // calculates the first execution of the method, either its today at the scheduled time or tomorrow (if scheduled time has already occurred today)
        double firstExecution = current > scheduledTime ? intervalPeriod - (current - scheduledTime) : scheduledTime - current;

        // create callback - this is the method that is called on every interval
        TimerCallback callback = new TimerCallback(RunXMLService);

        // create timer
        _timer = new Timer(callback, null, Convert.ToInt32(firstExecution), Convert.ToInt32(intervalPeriod));

    }
    public void RunXMLService(object state) {
        // Code that runs every interval period
    }

Answer 4

感谢@Rachit的回答,现在我能够满足我的要求.

static  System.Timers.Timer _timer;
static string _ScheduledRunningTime ="6:00 AM";
public Service1()
{
    InitializeComponent();
}

protected override void OnStart(string[] args)
{
    try
    {
        _timer = new System.Timers.Timer();
        _timer.Interval = TimeSpan.FromMinutes(1).TotalMilliseconds;//Every one minute
        _timer.Elapsed += new System.Timers.ElapsedEventHandler(timer_Elapsed);
        _timer.Start();
    }
    catch (Exception ex)
    {
        //Displays and Logs Message
        _loggerDetails.LogMessage = ex.ToString();
        _writeLog.LogDetails(_loggerDetails.LogLevel_Error, _loggerDetails.LogMessage);
     }
 }

static void timer_Elapsed(object sender, ElapsedEventArgs e)
{
    //Displays and Logs Message
    _loggerDetails.LogMessage = "timer_Elapsed method at :"+DateTime.Now ;
    _writeLog.LogDetails(_loggerDetails.LogLevel_Info, _loggerDetails.LogMessage);

    string _CurrentTime=String.Format("{0:t}", DateTime.Now);
    if (_CurrentTime == _ScheduledRunningTime)
    {
        ExtractDataFromSharePoint();
    }
}