spring boot: @EnableScheduling开启计划任务支持，@Scheduled计划任务声明

spring boot:

@EnableScheduling开启计划任务支持，

@Scheduled计划任务声明

package ch2.scheduler2;

//日期转换方式
import java.text.SimpleDateFormat;
import java.util.Date;

//计划任务声明
import org.springframework.scheduling.annotation.Scheduled;
//spring组件注解
import org.springframework.stereotype.Service;

@Service
public class SchedulerService {

    private static final SimpleDateFormat dateFormat = new SimpleDateFormat("HH::mm::ss");
    
    @Scheduled(fixedRate=5000)
    public void proFixCurrentTime()
    {
        System.out.println("每5秒钟执行一次：" + dateFormat.format(new Date()));
    }
    
    @Scheduled(cron="0 53 18 ? * *")
    public void cornCurrentTime()
    {
        System.out.println("自定执行时间: " + dateFormat.format(new Date()));
    }
    
    
}

 

package ch2.scheduler2;

//引入spring配置注解
import org.springframework.context.annotation.Configuration;
//引入spring自动载入注解
import org.springframework.context.annotation.ComponentScan;

//计划任务声明类：开启计划任务声明
import org.springframework.scheduling.annotation.EnableScheduling;

//spring配置类声明
@Configuration
//自动引入当前包下的service,component....
@ComponentScan("ch2.scheduler2")
//开启对计划任务的支持
@EnableScheduling
public class TaskSchedulerConfig {

}

 

package ch2.scheduler2;
//引入容器
import org.springframework.context.annotation.AnnotationConfigApplicationContext;

public class Main {

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