import org.apache.logging.log4j.LogManager;

import org.apache.logging.log4j.Logger;

import org.quartz.Job;

import org.quartz.JobExecutionContext;

import org.quartz.JobExecutionException;

public class TestJob implements Job {

    private static final Logger logger = LogManager.getLogger(TestJob.class);

    @Override

    public void execute(JobExecutionContext arg0) throws JobExecutionException {

        logger.debug("TestJob执行啦！");

    }

}

import java.util.TimeZone;

import javax.servlet.ServletException;

import javax.servlet.annotation.WebServlet;

import javax.servlet.http.HttpServlet;

import org.apache.logging.log4j.LogManager;

import org.apache.logging.log4j.Logger;

import org.quartz.CronScheduleBuilder;

import org.quartz.CronTrigger;

import org.quartz.JobBuilder;

import org.quartz.JobDetail;

import org.quartz.Scheduler;

import org.quartz.TriggerBuilder;

import org.quartz.impl.StdSchedulerFactory;

//loadOnStartup表示：网站启动的时候自动初始化QuartzInitServlet（即init被调用）

@WebServlet(value = "/QuartzInitServlet", loadOnStartup = 1)

public class QuartzInitServlet extends HttpServlet {

    private static final Logger logger = LogManager.getLogger(QuartzInitServlet.class);

    @Override

    public void init() throws ServletException {

        super.init();

        try

        {

            Scheduler scheduler = StdSchedulerFactory.getDefaultScheduler();

            JobDetail job = JobBuilder.newJob(TestJob.class).build();

            CronScheduleBuilder cronScheduleBuilder =

                    CronScheduleBuilder.cronSchedule("0 0 0/1 * * ? ").inTimeZone(TimeZone.getTimeZone("GMT+08:00"));//每小时执行一次

                    //CronScheduleBuilder.cronSchedule("10/5 * * * * ? ").inTimeZone(TimeZone.getTimeZone("GMT+08:00"));//从10秒开始，每隔5秒执行一次

                    //CronScheduleBuilder.cronSchedule("45 53 23 * * ? ").inTimeZone(TimeZone.getTimeZone("GMT+08:00"));//每天23:53:45

                    //CronScheduleBuilder.dailyAtHourAndMinute(23, 48).inTimeZone(TimeZone.getTimeZone("GMT+08:00"));

            CronTrigger trigger = TriggerBuilder.newTrigger().withSchedule(cronScheduleBuilder).build();

            scheduler.scheduleJob(job, trigger);

            scheduler.start();//不要忘了启动

        }

        catch(Throwable ex)

        {

            logger.error("定时任务安排出错",ex);

        }

    }

}