我是Spring-boot（版本1.3.6）和Quartz的新手，我想知道使用Spring-
scheduler进行任务之间有什么区别：

    @Scheduled(fixedRate = 40000)
    public void reportCurrentTime() {
        System.out.println("Hello World");
    }

和石英方式：

0. Create sheduler.
1. Job which implements Job interface.
2. Create JobDetail which is instance of the job using the builder  org.quartz.JobBuilder.newJob(MyJob.class)
3. Create a Triger
4. Finally set the job and the trigger to the scheduler

在代码中：

  public class HelloJob implements Job {

    public HelloJob() {
    }

    public void execute(JobExecutionContext context)
      throws JobExecutionException
    {
      System.err.println("Hello!");
    }
  }

和sheduler：

SchedulerFactory schedFact = new org.quartz.impl.StdSchedulerFactory();

  Scheduler sched = schedFact.getScheduler();

  sched.start();

  // define the job and tie it to our HelloJob class
  JobDetail job = newJob(HelloJob.class)
      .withIdentity("myJob", "group1")
      .build();

  // Trigger the job to run now, and then every 40 seconds
  Trigger trigger = newTrigger()
      .withIdentity("myTrigger", "group1")
      .startNow()
      .withSchedule(simpleSchedule()
          .withIntervalInSeconds(40)
          .repeatForever())
      .build();

  // Tell quartz to schedule the job using our trigger
  sched.scheduleJob(job, trigger);

Quartz是否提供了更灵活的方式来定义Jobs，Triggers和Scheduler，或者Spring Scheduler还有其他更好的方法？