前言
有时候在开发中经常会使用一些定时的任务,比如果整点推送,或者是每隔一段时间给客户发送一个消息等等。下面就来给大家介绍下Spring Boot实现简单的定时任务的相关内容。
创建定时任务类 每一分钟执行一次
@Component
@EnableScheduling
public class AllianceDiscountsActivityJob {
@Autowired
private AllianceDiscountsActivityService allianceDiscountsActivityService;
// @Scheduled(cron = "0 0 0 * * ?")
@Scheduled(cron = "0 */1 * * * ?")
public void checkAllianceDiscounts()throws Exception{
allianceDiscountsActivityService.checkAllianceDiscounts();
}
}
创建service
public interface AllianceDiscountsActivityService {
void checkAllianceDiscounts() throws Exception;
}
创建serviceImpl
@Override
public void checkAllianceDiscounts() throws Exception {
int num=allianceDiscountsActivityMapper.checkAllianceDiscountActivity();
}
之后创建mapper mapper mybatis-mapper 用来实现定时任务的方法
public interface AllianceDiscountsActivityMapper {
int checkAllianceDiscountActivity();
}
<update id="checkAllianceDiscountActivity" parameterType="java.lang.String">
update alliance set status=3 WHERE start_time <![CDATA[<=]]> NOW() and is_del=0 and status=1;
update alliance set status=2 WHERE end_time <![CDATA[<=]]> NOW() and is_del=0 and status=3;
</update>
总结
