quartz(定时器)

1引入

<dependency>
    <groupId>org.quartz-scheduler</groupId>
    <artifactId>quartz</artifactId>
    <version>2.3.0</version>
</dependency>

2.使用

@Component
@Configuration   //申明为注解类
@EnableScheduling   //开启对计划任务的支持
public class SendEmailQuartz {
    private static final Logger logger= LogManager.getLogger(SendEmailQuartz.class);

    @Autowired
    private MailService mailService;
    @Scheduled(cron="*/5 * * * * * ")   //注解为定时任务
    public void aaa(){
        do something...
    }

}

3.时间规则https://www.cnblogs.com/a8457013/p/8515939.html