SpringBoot整合简单的定时任务~

定时任务框架很多种Quartz,SpringTask,xxljob,PowerJob...

1、JDK提供的timer

// JDK提供的
        Timer timer = new Timer();
        //timer.schedule(new TimerTask() {
        //    @Override
        //    public void run() {
        //        System.out.println("JDK提供的 timer task 执行了~");
        //    }
        //},0);

        // 指定时间执行，并且两秒执行一次
        timer.schedule(new TimerTask() {
            @Override
            public void run() {
                System.out.println("JDK提供的 timer task 执行了~");
            }
        }, new Date(), 2000);

2、Quartz

先导入依赖

implementation 'org.springframework.boot:spring-boot-starter-quartz:3.0.2'

定义一个你需要执行的任务

package com.qbb.quartz;

import lombok.extern.slf4j.Slf4j;
import org.quartz.JobExecutionContext;
import org.quartz.JobExecutionException;
import org.springframework.scheduling.quartz.QuartzJobBean;

/**
 * @author startqbb (个人博客:https://www.cnblogs.com/qbbit)
 * @date 2023-02-08  20:56
 * @tags 喜欢就去努力的争取
 */
@Slf4j
public class QuartzBean extends QuartzJobBean {
    @Override
    protected void executeInternal(JobExecutionContext context) throws JobExecutionException {
        log.info("quartz task run ......");
    }
}

定义一个Quartz的配置类，绑定Trigger和JobDetail

package com.qbb.quartz;

import org.quartz.*;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;

/**
 * @author startqbb (个人博客:https://www.cnblogs.com/qbbit)
 * @date 2023-02-08  20:57
 * @tags 喜欢就去努力的争取
 */
@Configuration
public class QuartzConfig {

    @Bean
    public JobDetail jobDetail() {
        // 绑定Job
        return JobBuilder
                .newJob(QuartzBean.class)
                .storeDurably()
                .build();
    }

    @Bean
    public Trigger trigger() {
        // 绑定JobDetail
        ScheduleBuilder scheduleBuilder = CronScheduleBuilder.cronSchedule("0/5 * * * * ?");
        return TriggerBuilder
                .newTrigger()
                .forJob(jobDetail())
                .withSchedule(scheduleBuilder)
                .build();
    }
}

启动主程序

3、SpringTask

开启SpringTask定时任务

package com.qbb;

import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.scheduling.annotation.EnableScheduling;

@SpringBootApplication
@EnableScheduling // 开启定时任务
public class SpringbootTaskApplication {
    public static void main(String[] args) {
        SpringApplication.run(SpringbootTaskApplication.class, args);
    }
}

在需要执行的任务上加@Scheduled(注意需要把当前任务类交给Spring管理)

package com.qbb.springtask;

import lombok.extern.slf4j.Slf4j;
import org.springframework.scheduling.annotation.Scheduled;
import org.springframework.stereotype.Component;

/**
 * @author startqbb (个人博客:https://www.cnblogs.com/qbbit)
 * @date 2023-02-08  21:10
 * @tags 喜欢就去努力的争取
 */
@Component
@Slf4j
public class SpringTaskDemo {

    @Scheduled(cron = "0/1 * * * * ?")
    public void print(){
      log.info("SpringTask Run ......");
    }
}

TODO 整合PowerJob...