private static  void setScheduler() throws SchedulerException{

  SchedulerFactory sf = new StdSchedulerFactory();

  Scheduler sched = sf.getScheduler();

  JobDetail job =JobBuilder.newJob(HelloJob.class).withIdentity("job1", "group1").build(); 

  Trigger trigger =TriggerBuilder.newTrigger().withIdentity("trigger1", "group1")

      .withSchedule(SimpleScheduleBuilder.simpleSchedule() 
      .withIntervalInSeconds(2) //设置多久执行一次
        .repeatForever())
      .build();

  sched.scheduleJob(job,trigger);

  sched.start();

 }
//测试
public class HelloJob implements Job{
 public HelloJob(){
 }
 @Override
 public void execute(JobExecutionContext context) throws JobExecutionException {
  System.out.println("Test"+new Date());
 }

quartz2.2.X写法