package org.springboot.sample.config;import org.slf4j.Logger;import org.slf4j.LoggerFactory;import org.springframework.context.annotation.Configuration;import org.springframework.scheduling.annotation.EnableScheduling;import org.springframework.scheduling.annotation.Scheduled;/** * 定時任務配置類 * * @author 單紅宇(365384722) * @myblog http://blog.csdn.net/catoop/ * @create 2016年3月21日 */@Configuration@EnableScheduling // 啟用定時任務public class SchedulingConfig {  private final Logger logger = LoggerFactory.getLogger(getClass());  @Scheduled(cron = "0/20 * * * * ?") // 每20秒執行一次  public void scheduler() {    logger.info(">>>>>>>>>>>>> scheduled ... ");  }}