在特定日期和时间只进行一次动火作业
本文关键字:一次 作业 日期 时间 | 更新日期: 2023-09-27 18:27:10
我有Job的代码-只需将信息记录到数据库
public class Job : IJob
{
private static readonly log4net.ILog log =
log4net.LogManager.GetLogger(System.Reflection.MethodBase.GetCurrentMethod( ).DeclaringType);
#region IJob Members
public void Execute(IJobExecutionContext context)
{
// This job simply prints out its job name and the
// date and time that it is running
JobKey jobKey = context.JobDetail.Key;
log.InfoFormat("SimpleJob says: {0} executing at {1}",
jobKey, DateTime.Now.ToString("r"));
}
#endregion
}
我的单例调度器类
public class Scheduler
{
static Scheduler()
{
NameValueCollection properties = new
NameValueCollection();
properties["quartz.scheduler.instanceName"] = "myApp";
properties["quartz.scheduler.instanceId"] = "MyApp";
properties["quartz.threadPool.type"] =
"Quartz.Simpl.SimpleThreadPool, Quartz";
properties["quartz.threadPool.threadCount"] = "10";
properties["quartz.threadPool.threadPriority"] = "Normal";
properties["quartz.scheduler.instanceName"] =
"TestScheduler";
properties["quartz.scheduler.instanceId"] =
"instance_one";
properties["quartz.jobStore.type"] =
"Quartz.Impl.AdoJobStore.JobStoreTX, Quartz";
properties["quartz.jobStore.useProperties"] = "true";
properties["quartz.jobStore.dataSource"] = "default";
properties["quartz.jobStore.tablePrefix"] = "QRTZ_";
// if running MS SQL Server we need this
properties["quartz.jobStore.lockHandler.type"] =
"Quartz.Impl.AdoJobStore.UpdateLockRowSemaphore, Quartz";
properties["quartz.dataSource.default.connectionString"] =
"Server=localhost;Database=quartzr;Uid=user;Pwd=pass";
properties["quartz.dataSource.default.provider"] =
"SqlServer-20";
_schedulerFactory = new StdSchedulerFactory(properties);
_scheduler = _schedulerFactory.GetScheduler();
}
public static IScheduler GetScheduler()
{
return _scheduler;
}
private static readonly ISchedulerFactory _schedulerFactory;
private static readonly IScheduler _scheduler;
}
Global.asax启动调度程序
void Application_Start(object sender, EventArgs e)
{
Scheduler.GetScheduler().Start();
}
和添加作业的代码
DateTime SelectedDate = this.Calendar1.SelectedDate;
int hour = this.TimeSelector1.Hour;
int minute = this.TimeSelector1.Minute;
int second = this.TimeSelector1.Second;
// First we must get a reference to a scheduler
// jobs can be scheduled before sched.start() has been
called
// get a "nice round" time a few seconds in the
future...
DateTimeOffset startTime = DateBuilder.DateOf(hour,
minute, second, SelectedDate.Day, SelectedDate.Month,
SelectedDate.Year);
try
{
// job1 will only fire once at date/time "ts"
IJobDetail job = JobBuilder.Create<Job>()
.WithIdentity("job1", "group1")
.Build();
ISimpleTrigger trigger =
(ISimpleTrigger)TriggerBuilder.Create()
.WithIdentity("trigger1",
"group1")
.StartAt(startTime)
.Build();
// schedule it to run!
DateTimeOffset? ft =
Scheduler.GetScheduler().ScheduleJob(job, trigger);
log.Info(job.Key +
" will run at: " + ft);
this.Label1.Text = "Zdarzenie dodane";
}
catch (Exception ex)
{
log.Error(ex.Message, ex);
}
问题是作业被添加到数据库中,但它立即启动,而不是在我指定的时间:/我使用最新的库Quartz.NET 2.0测试版2我的代码有问题吗?我开始使用这个API,请帮助
Quartz.Net希望您输入UTC的日期和时间。尝试更改此行:
.StartAt(startTime)
至
.StartAt(startTime.ToUniversalTime())
或者,在传入startTime之前,请确保其为UTC。
除DateTimeOffest
外的StartAt
,
Quartz具有用于此的DateBuilder
辅助类
var minutesToFireDouble = (futureUTCtime - DateTime.UtcNow).TotalMinutes;
var minutesToFire = (int)Math.Floor(minutesToFireDouble); // negative or zero value will set fire immediately
var timeToFire = DateBuilder.FutureDate(minutesToFire, IntervalUnit.Minute);
var trigger = TriggerBuilder.Create()
.WithIdentity("triggerC", "groupC")
.StartAt(timeToFire)
.WithSimpleSchedule(x => x.WithMisfireHandlingInstructionFireNow())
.Build();
如果你已经知道你的任务需要在什么UTC时间运行,你可以这样做:
UTC目标开始时间:2017年9月1日中午12点
将Quartz"开始时间"设置如下:
var MyTaskAbcStartTime = "2017-09-01 12:00:00Z"
.StartAt(MyTaskAbcStartTime)
utc时间格式请参阅microsoft文档,网址为:https://learn.microsoft.com/en-us/dotnet/standard/base-types/standard-date-and-time-format-strings
希望这能为未来的Quartz用户节省一些时间。