如何在启动时设置Cron Quartz触发器

import org.quartz.*;
import org.quartz.impl.StdSchedulerFactory;

public class CronTriggerExample {
    public static void main(String[] args) {
        try {
            // 创建Scheduler
            Scheduler scheduler = StdSchedulerFactory.getDefaultScheduler();

            // 创建Job
            JobDetail job = JobBuilder.newJob(MyJob.class)
                    .withIdentity("myJob", "group1")
                    .build();

            // 创建Trigger，设定Cron表达式
            Trigger trigger = TriggerBuilder.newTrigger()
                    .withIdentity("myTrigger", "group1")
                    .withSchedule(CronScheduleBuilder.cronSchedule("0 0 0 * * ?"))
                    .build();

            // 将Job和Trigger关联
            scheduler.scheduleJob(job, trigger);

            // 启动Scheduler
            scheduler.start();
        } catch (SchedulerException e) {
            e.printStackTrace();
        }
    }

    public static class MyJob implements Job {
        public void execute(JobExecutionContext context) throws JobExecutionException {
            // 在这里定义具体的任务逻辑
        }
    }
}