java 使用Quartz定时任务调度

import org.quartz.CronTrigger;import org.quartz.JobDetail;import org.quartz.Scheduler;import org.quartz.SchedulerFactory;import org.quartz.impl.StdSchedulerFactory;public abstract class AbstractExpSched {/** * 设置调度任务启动参数 * @param cls 启动任务类名称 * @param cronExpression 启动表达式 * @param taskName 任务名称 * @throws Exception */public void set(Class<?> cls,String cronExpression,String taskName,String job)throws  Exception{//SchedulerFactory 提供一种获取调度程序实例的机制 SchedulerFactory schedFact = new StdSchedulerFactory();//获取调度程序Scheduler sched = schedFact.getScheduler();//Conveys the detail properties of a given Job instance.new JobDetail(String name, String group, Class jobClass) JobDetail jobDetailStand = new JobDetail(job, "expGroup",cls);//Get the JobDataMap that is associated with the Job.jobDetailStand.getJobDataMap().put("name", taskName);//A concrete Trigger that is used to fire a JobDetail at given moments in time, defined with Unix 'cron-like' definitions.CronTrigger triggerStand = new CronTrigger(taskName, "expGroup");//设置定时机制cronExpression如："0 0 12 * * ?"   triggerStand.setCronExpression(cronExpression); // Add the given JobDetail to the Scheduler, and associate the given Trigger with it. sched.scheduleJob(jobDetailStand, triggerStand);sched.start();}public abstract void start();}