SpringBoot定时任务(注解方式实现+配置文件动态设置定时任务时间间隔)

古城微笑少年丶 2022-05-31 05:16 1067阅读 0赞

一、注解方式实现

1.启动类上一定要加注解（启用定时任务功能）

@EnableScheduling

2.新建类，如：

@Component
    public class ScheduleCache {
    
        public final static long DELAY =  60 * 1000;//定时缓存时间间隔设置
    
        public static final Logger log = LoggerFactory.getLogger(ScheduleCache.class);
    
        @Scheduled(fixedDelay=DELAY)
        public void scheduleCache(){
            log.info("------------------定时缓存任务开始执行（时间间隔为："+DELAY/(60*1000)+"分钟）-----------------");
        }
    }

具体如何设置定时条件请下跳：

[定时设置原文][Link 1]

二、 动态时间间隔实现方式

1. 添加任务类实现TimerTask：

package com.iflytek.aisp.custom.proxy.scdx.service;
    
    import org.slf4j.Logger;
    import org.slf4j.LoggerFactory;
    
    import java.util.TimerTask;
    
    /**
     * Created by lfx on 2019/1/9.
     */
    public class PerTimerTask extends TimerTask {
    
        private Logger logger = LoggerFactory.getLogger(this.getClass());
    
        @Override
        public void run() {
            logger.info("定时任务执行中！");
        }
    }

2. 启动类加载定时任务

package com.iflytek.aisp.custom.proxy.scdx;
    
    import com.iflytek.aisp.custom.proxy.scdx.service.PerTimerTask;
    import org.springframework.beans.factory.annotation.Value;
    import org.springframework.boot.SpringApplication;
    import org.springframework.boot.autoconfigure.SpringBootApplication;
    
    import java.util.Timer;
    
    /**
     * Created by lfx on 2019/1/9.
     */
    @SpringBootApplication
    public class ApplicationStart {
    
        private static Integer timerTaskInterval;
    
        public ApplicationStart(@Value("${setting.interval:300}")Integer i) {
            timerTaskInterval = i;
        }
    
        public static void main(String[] args) {
            SpringApplication application = new SpringApplication(ApplicationStart.class);
            application.run();
            PerTimerTask perTimerTask = new PerTimerTask();
            Timer timer = new Timer();
            timer.scheduleAtFixedRate(perTimerTask,10,timerTaskInterval * 1000);
            perTimerTask.run();
            System.out.println("scdx proxy start success!");
        }
    }

3. 配置文件设置时间间隔

server:
      port: 8119
    
    setting:
        #定时任务执行时间间隔 单位s 默认300s
        interval: 5

启动测试 结果如下：

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L0xvc2VyMTAw_size_16_color_FFFFFF_t_70][]

[Link 1]: https://www.jianshu.com/p/ef18af5a9c1d
[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L0xvc2VyMTAw_size_16_color_FFFFFF_t_70]: /images/20220531/009991d9b7984ce2b6c4d59a87e68519.png