springboot的定时任务应该如何使用

@Componentpublic class GetIndexInfo { public final static long ONE_Minute = 60 * 1000; /*当任务执行完毕后1分钟在执行*/
 @Scheduled(fixedDelay=ONE_Minute) public void fixedDelayJob(){
 System.out.println("---------------1-----------------");
 System.out.println(new Date().getTime());
 } /*每多次分钟一次*/
 @Scheduled(fixedRate=ONE_Minute) public void fixedRateJob(){
 System.out.println("---------------2-----------------");
 System.out.println(new Date().getTime());
 } /*每周日凌晨三点执行*/
 @Scheduled(cron="0 10 3 ? * 1") public void cronJob(){
 System.out.println("---------------3-----------------");
 System.out.println(new Date().getTime());
 } synchronized static void writeFile(String filePath, JSONObject json) { try {
 FileWriter fw = new FileWriter(filePath, false);
 PrintWriter out = new PrintWriter(fw);
 out.write(json.toString());
 out.println();
 fw.close();
 out.close();
 } catch (IOException e) {
 e.printStackTrace();
 }
 }

}