pom.xml:
<!-- https://mvnrepository.com/artifact/org.springframework.boot/spring-boot-starter-quartz -->
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-quartz</artifactId>
<version>2.2.0.RELEASE</version>
</dependency>
配置定时器:
Spring Schedule 这是spring自带的任务框架 优点就是配置简单,依赖少,缺点就是
同一个task,如果前一个还没跑完后面一个就不会触发,不同的task也不能同时运行。因为scheduler的默认线程数为1,配置pool-size为2的话,会导致同一个task前一个还没跑完后面又被触发的问题,不支持集群等:
import org.springframework.scheduling.annotation.EnableScheduling;
import org.springframework.scheduling.annotation.Scheduled;
import org.springframework.stereotype.Component;
import java.util.Date;
/**
* spring自带任务框架,有弊端
*/
@Component
@EnableScheduling //必须加噢
public class SpringScheduleTask {
/**
* 每分钟执行一次
*/
@Scheduled(cron = "0 0/1 * * * ?")
public void reptilian(){
System.out.println("执行调度任务:"+new Date());
}
}
Quartz 优点太多了,最主要有负载均衡,容错率高等特点,具体可以参考别人的分享
使首先先要创建一个任务调度器,触发器等 代码如下:
package com.ailink.sap.quartz.config;
import com.ailink.sap.quartz.service.OneJob;
import com.ailink.sap.quartz.service.TwoJob;
import org.quartz.JobDetail;
import org.quartz.Trigger;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.scheduling.quartz.CronTriggerFactoryBean;
import org.springframework.scheduling.quartz.MethodInvokingJobDetailFactoryBean;
import org.springframework.scheduling.quartz.SchedulerFactoryBean;
@Configuration
public class QuartzConfig {
/**
* 配置任务
* @param oneJob QuartzTask为需要执行的任务
* @return MethodInvokingJobDetailFactoryBean
*/
@Bean(name = "oneDetail")
public MethodInvokingJobDetailFactoryBean oneDetail(OneJob oneJob) {
MethodInvokingJobDetailFactoryBean jobDetail = new MethodInvokingJobDetailFactoryBean();
// 是否并发执行
jobDetail.setConcurrent(false);
// 设置任务的名字
jobDetail.setName("oneJob");
// 设置任务的分组,在多任务的时候使用
jobDetail.setGroup("busJobGroup");
// 需要执行的对象
jobDetail.setTargetObject(oneJob);
/*
* TODO 非常重要
* 执行QuartzTask类中的需要执行方法
*/
jobDetail.setTargetMethod("one");
return jobDetail;
}
@Bean(name = "twoDetail")
public MethodInvokingJobDetailFactoryBean twoDetail(TwoJob twoJob) {
MethodInvokingJobDetailFactoryBean jobDetail = new MethodInvokingJobDetailFactoryBean();
// 是否并发执行
jobDetail.setConcurrent(false);
// 设置任务的名字
jobDetail.setName("twoJob");
// 设置任务的分组,在多任务的时候使用
jobDetail.setGroup("busJobGroup");
// 需要执行的对象
jobDetail.setTargetObject(twoJob);
/*
* TODO 非常重要
* 执行QuartzTask类中的需要执行方法
*/
jobDetail.setTargetMethod("two");
return jobDetail;
}
/**
* 定时触发器
* @param oneDetail 任务
* @return CronTriggerFactoryBean
*/
@Bean(name = "oneTrigger")
public CronTriggerFactoryBean oneTrigger(JobDetail oneDetail){
CronTriggerFactoryBean trigger = new CronTriggerFactoryBean();
trigger.setJobDetail(oneDetail);
//cron表达式,每1秒钟执行一次
trigger.setCronExpression("0/1 * * * * ?");
trigger.setName("oneTrigger");
return trigger;
}
@Bean(name = "twoTrigger")
public CronTriggerFactoryBean twoTrigger(JobDetail twoDetail){
CronTriggerFactoryBean trigger = new CronTriggerFactoryBean();
trigger.setJobDetail(twoDetail);
//cron表达式,每1秒钟执行一次
trigger.setCronExpression("0/1 * * * * ?");
trigger.setName("twoTrigger");
return trigger;
}
/**
* 调度工厂
* @param oneTrigger 触发器
* @return SchedulerFactoryBean
*/
@Bean(name = "scheduler")
public SchedulerFactoryBean oneSchedulerFactory(Trigger oneTrigger,Trigger twoTrigger) {
SchedulerFactoryBean factoryBean = new SchedulerFactoryBean();
// 用于quartz集群,QuartzScheduler 启动时更新己存在的Job
factoryBean.setOverwriteExistingJobs(true);
// 延时启动,应用启动1秒后
factoryBean.setStartupDelay(1);
// 注册触发器
factoryBean.setTriggers(oneTrigger,twoTrigger);
return factoryBean;
}
}
创建需要执行的业务逻辑类:
package com.ailink.sap.quartz.service;
public interface OneJob {
void one();
}
package com.ailink.sap.quartz.service;
import lombok.extern.slf4j.Slf4j;
import org.springframework.stereotype.Service;
@Service
@Slf4j
public class OneJobImpl implements OneJob {
@Override
public void one() {
log.info("111111111111111111111111111111");
}
}