Spring 的定时任务

Service:

@Service
public class ScheduledTaskService {
    private static final SimpleDateFormat dateFormat = new SimpleDateFormat("HH:mm:ss");

    @Scheduled(fixedRate = 5000)
    //每5秒执行一次
    public void reportCurrentTime() {
        System.out.println("每隔5秒执行一次" + dateFormat.format(new Date()));
    }

    @Scheduled(cron = "0 42 21 ? * *")
    //每天11点28分执行
    public void fixTimeExcution() {
        System.out.println("在指定时间" + dateFormat.format(new Date()));
    }

}

配置类:

@Configuration
@ComponentScan("com.wulala.ch3.taskscheduler")
@EnableScheduling
public class TaskSchedulerConfig {

}

Main类与方法:

public class Main {
    public static void main(String[]args){
        AnnotationConfigApplicationContext context=new AnnotationConfigApplicationContext(TaskSchedulerConfig.class);
        //context.close();
    }

}