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  • Quartz启动后第一次会立即执行问题解决办法

    通过quartz配置一个任务,比如我设定每小时(整点)执行一次,比如15:28启动,预想结果应该是,在16:00第一次执行,然后类推。结果经常是,15:28就进行了第一次执行,也就是说quartz在启动时不按照预定排程执行了一次。这在实际操作中会带来不小的麻烦。

    解决办法:((CronTriggerImpl)trigger).MisfireInstruction = MisfireInstruction.CronTrigger.DoNothing;

    _scheduler = await GetSchedulerAsync();
    Type type = Type.GetType(scheduleInfo.JobName, true, true);
    IJobDetail job = JobBuilder.Create(type)
                                .WithIdentity(scheduleInfo.JobName, scheduleInfo.JobGroup)
                                .Build();
    ICronTrigger trigger = (ICronTrigger)TriggerBuilder.Create()
                                .StartAt(startRunTime)
                                .EndAt(endRunTime)
                                .WithIdentity(scheduleInfo.JobName, scheduleInfo.JobGroup)
                                .WithCronSchedule(scheduleInfo.CronExpress)
                                .Build();
    ((CronTriggerImpl)trigger).MisfireInstruction = MisfireInstruction.CronTrigger.DoNothing;
    IList<ICronTrigger> triggers = new List<ICronTrigger> { trigger };
    await _scheduler.ScheduleJob(job, new ReadOnlyCollection<ICronTrigger>(triggers), true);
    if (!_scheduler.IsStarted) await _scheduler.Start();

    另外:下面一句如果存在相同名字的Job或Trigger参数replace设置为true可以更新作业的调度计划(如Cron重设)而不报错.
    await _scheduler.ScheduleJob(job, new ReadOnlyCollection<ICronTrigger>(triggers), true);

    await _scheduler.ScheduleJob(job, new ReadOnlyCollection<ICronTrigger>(triggers), true);
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  • 原文地址:https://www.cnblogs.com/chriskwok/p/12905288.html
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