Quartz简单使用

最新推荐文章于 2025-09-10 17:59:49 发布

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最新推荐文章于 2025-09-10 17:59:49 发布

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文章标签： python

原文链接：https://my.oschina.net/pierrecai/blog/890818

本文介绍了一个使用Quartz调度器实现的任务调度示例。通过创建一个简单的任务并定义其执行规则，演示了如何利用QuartzAPI进行任务调度。具体包括创建JobDetail实例、定义Trigger及其执行规则，并启动和关闭调度器。

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Quartz API中的主要接口：

Scheduler - the main API for interacting with the scheduler.
Job - an interface to be implemented by components that you wish to have executed by the scheduler.
JobDetail - used to define instances of Jobs.
Trigger - a component that defines the schedule upon which a given Job will be executed.
JobBuilder - used to define/build JobDetail instances, which define instances of Jobs.
TriggerBuilder - used to define/build Trigger instances.

public class QuartzTest {
    public static void main(String[] args) {
        try {
            //创建需要重复执行的任务
            JobDetail job = JobBuilder.newJob(SimpleJob.class).withIdentity("myJob", "group1").build();

            //定义任务的执行规则
            Trigger trigger = TriggerBuilder.newTrigger()
                    .withIdentity("myTrigger", "group1")
                    //立即开始服务，但是不一定立即执行
                    .startNow()
                    //Cron表达式，每秒执行一次
                    .withSchedule(CronScheduleBuilder.cronSchedule("* * * * * ?"))
                    .build();

            //定义执行容器
            Scheduler scheduler = new StdSchedulerFactory().getScheduler();
            scheduler.scheduleJob(job,trigger);
            //启动任务
            scheduler.start();

            Thread.sleep(5000);

            //关闭任务
            scheduler.shutdown();
        } catch (SchedulerException se) {
            se.printStackTrace();
        } catch (InterruptedException e) {
            e.printStackTrace();
        }
    }
}

public class SimpleJob implements Job {
    @Override
    public void execute(JobExecutionContext jobExecutionContext) throws JobExecutionException {
        System.out.println("CalendarName:"+jobExecutionContext.getTrigger().getCalendarName()+
                "description:"+jobExecutionContext.getTrigger().getDescription()+"time is:"+new Date());
    }
}

转载于:https://my.oschina.net/pierrecai/blog/890818