SpringBoot 集成 Quartz 定时器

墨蓝 2021-11-10 22:54 363阅读 0赞

今天，日月教大家如何使用springBoot集成Quartz（定时器），沿用的springboot少xml配置的优良传统，本身支持表达式等多种定时任务 。

为什么要使用Quartz

多任务情况下，quartz更容易管理，可以实现动态配置

## 集成Quartz ##

**1、maven依赖**

<dependency>
        <groupId>org.quartz-scheduler</groupId>
        <artifactId>quartz</artifactId>
        <version>2.2.1</version>
    </dependency>

**2、测试Job类**

import java.text.SimpleDateFormat;
    import java.util.Date;
    import org.quartz.Job;
    import org.quartz.JobExecutionContext;
    import org.quartz.JobExecutionException;
    /**
     * 
    * @ClassName: SchedulerQuartzJobUpOffLine
    * @Description: 实现Job接口  监听服务上下线的定时器
    * @author chenqi
    * @date 2018年9月4日
    *
     */
    public class SchedulerQuartzJobTest implements Job{
        private SimpleDateFormat dateFormat = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
        private void before(){
            System.out.println("任务开始执行-" + dateFormat.format(new Date()));
        }
        @Override
        public void execute(JobExecutionContext arg0) throws JobExecutionException {
            before();
            System.out.println("业务逻辑。。。");
            after();
        }
        private void after(){
            System.out.println("任务执行结束");
        }
    }

**3、定时器管理类**

package com.chenqi.springBootQuartz.quartz;
    import java.util.Date;
    import org.quartz.CronScheduleBuilder;
    import org.quartz.CronTrigger;
    import org.quartz.JobBuilder;
    import org.quartz.JobDetail;
    import org.quartz.JobKey;
    import org.quartz.Scheduler;
    import org.quartz.SchedulerException;
    import org.quartz.TriggerBuilder;
    import org.quartz.TriggerKey;
    import org.springframework.beans.factory.annotation.Autowired;
    import org.springframework.context.annotation.Configuration;
    import com.chenqi.springBootQuartz.quartz.job.SchedulerQuartzJobTest;
    /**
     * 
    * @ClassName: QuartzScheduler
    * @Description: 任务调度处理
    * @author chenqi
    * @date 2018年9月4日
    *
     */
    @Configuration
    public class QuartzSchedulerManager {
        // 任务调度
        @Autowired
        private Scheduler scheduler;
        /**
         * 开始执行定时器
         * 
         * @throws SchedulerException
         */
        public void startJob() throws SchedulerException {
            startJobTest(scheduler);
            scheduler.start();
        }
        /**
         * 获取Job信息
         * 
         * @param name
         * @param group
         * @return
         * @throws SchedulerException
         */
        public String getJobInfo(String name, String group) throws SchedulerException {
            TriggerKey triggerKey = new TriggerKey(name, group);
            CronTrigger cronTrigger = (CronTrigger) scheduler.getTrigger(triggerKey);
            return String.format("time:%s,state:%s", cronTrigger.getCronExpression(),
                    scheduler.getTriggerState(triggerKey).name());
        }
        /**
         * 修改某个任务的执行时间
         * 
         * @param name
         * @param group
         * @param time
         * @return
         * @throws SchedulerException
         */
        public boolean modifyJob(String name, String group, String time) throws SchedulerException {
            Date date = null;
            TriggerKey triggerKey = new TriggerKey(name, group);
            CronTrigger cronTrigger = (CronTrigger) scheduler.getTrigger(triggerKey);
            String oldTime = cronTrigger.getCronExpression();
            if (!oldTime.equalsIgnoreCase(time)) {
                CronScheduleBuilder cronScheduleBuilder = CronScheduleBuilder.cronSchedule(time);
                CronTrigger trigger = TriggerBuilder.newTrigger().withIdentity(name, group)
                        .withSchedule(cronScheduleBuilder).build();
                date = scheduler.rescheduleJob(triggerKey, trigger);
            }
            return date != null;
        }
        /**
         * 暂停所有任务
         * 
         * @throws SchedulerException
         */
        public void pauseAllJob() throws SchedulerException {
            scheduler.pauseAll();
        }
        /**
         * 暂停某个任务
         * 
         * @param name
         * @param group
         * @throws SchedulerException
         */
        public void pauseJob(String name, String group) throws SchedulerException {
            JobKey jobKey = new JobKey(name, group);
            JobDetail jobDetail = scheduler.getJobDetail(jobKey);
            if (jobDetail == null)
                return;
            scheduler.pauseJob(jobKey);
        }
        /**
         * 恢复所有任务
         * 
         * @throws SchedulerException
         */
        public void resumeAllJob() throws SchedulerException {
            scheduler.resumeAll();
        }
        /**
         * 恢复某个任务
         * 
         * @param name
         * @param group
         * @throws SchedulerException
         */
        public void resumeJob(String name, String group) throws SchedulerException {
            JobKey jobKey = new JobKey(name, group);
            JobDetail jobDetail = scheduler.getJobDetail(jobKey);
            if (jobDetail == null)
                return;
            scheduler.resumeJob(jobKey);
        }
        /**
         * 删除某个任务
         * 
         * @param name
         * @param group
         * @throws SchedulerException
         */
        public void deleteJob(String name, String group) throws SchedulerException {
            JobKey jobKey = new JobKey(name, group);
            JobDetail jobDetail = scheduler.getJobDetail(jobKey);
            if (jobDetail == null)
                return;
            scheduler.deleteJob(jobKey);
        }
        /**
         * 
        * @Title: startJobTest
        * @Description: 启动 定时器 test
        * @param scheduler
        * @throws SchedulerException    参数
        * void    返回类型
         */
        private void startJobTest(Scheduler scheduler) throws SchedulerException {
            // 通过JobBuilder构建JobDetail实例，JobDetail规定只能是实现Job接口的实例
            // JobDetail 是具体Job实例
            JobDetail jobDetail = JobBuilder.newJob(SchedulerQuartzJobTest.class).withIdentity("job1", "group1").build();
            // 基于表达式构建触发器
            CronScheduleBuilder cronScheduleBuilder = CronScheduleBuilder.cronSchedule("0/5 * * * * ?");
            // CronTrigger表达式触发器 继承于Trigger
            // TriggerBuilder 用于构建触发器实例
            CronTrigger cronTrigger = TriggerBuilder.newTrigger().withIdentity("job1", "group1")
                    .withSchedule(cronScheduleBuilder).build();
            scheduler.scheduleJob(jobDetail, cronTrigger);
        }
    }

**4、定时器初始化类**

package com.chenqi.springBootQuartz.quartz;
    import org.quartz.Scheduler;
    import org.quartz.SchedulerException;
    import org.quartz.SchedulerFactory;
    import org.quartz.impl.StdSchedulerFactory;
    import org.springframework.beans.factory.annotation.Autowired;
    import org.springframework.context.ApplicationListener;
    import org.springframework.context.annotation.Bean;
    import org.springframework.context.annotation.Configuration;
    import org.springframework.context.event.ContextRefreshedEvent;
    /**
     * 
    * @ClassName: ApplicationStartQuartzJobListener
    * @Description: 服务启动 初始化定时器
    * @author chenqi
    * @date 2018年9月5日
    *
     */
    @Configuration
    public class ApplicationStartQuartzJobListener implements ApplicationListener<ContextRefreshedEvent>{
        @Autowired
        private QuartzSchedulerManager quartzSchedulerManager;
        /**
         * 初始启动quartz
         */
        @Override
        public void onApplicationEvent(ContextRefreshedEvent event) {
            try {
                quartzSchedulerManager.startJob();
                System.out.println("任务已经启动...");
            } catch (SchedulerException e) {
                e.printStackTrace();
            }
        }
        /**
         * 初始注入scheduler
         * @return
         * @throws SchedulerException
         */
        @Bean
        public Scheduler scheduler() throws SchedulerException{
            SchedulerFactory schedulerFactoryBean = new StdSchedulerFactory();
            return schedulerFactoryBean.getScheduler(); 
        }
    }

**5、封装api**

package com.chenqi.springBootQuartz.controller;
    import org.quartz.SchedulerException;
    import org.springframework.beans.factory.annotation.Autowired;
    import org.springframework.web.bind.annotation.RequestMapping;
    import org.springframework.web.bind.annotation.RestController;
    import com.chenqi.springBootQuartz.quartz.QuartzSchedulerManager;
    /**
     * 
    * @ClassName: QuartzController
    * @Description: 定时器api
    * @author chenqi
    * @date 2018年9月18日
    *
     */
    @RestController
    @RequestMapping("/quartz")
    public class QuartzController {
        @Autowired
        private QuartzSchedulerManager quartzSchedulerManager;
        /**
         * 
        * @Title: startQuartzJob
        * @Description: 启动所有定时器
        * @return void
         */
        @RequestMapping("/start")
        public void startQuartzJob() {
            try {
                quartzSchedulerManager.startJob();
            } catch (SchedulerException e) {
                e.printStackTrace();
            }
        }
        /**
         * 
        * @Title: getQuartzJob
        * @Description: 获取定时器信息
        * @param name
        * @param group
        * @return
        * @return String
         */
        @RequestMapping("/info")
        public String getQuartzJob(String name, String group) {
            String info = null;
            try {
                info = quartzSchedulerManager.getJobInfo(name, group);
            } catch (SchedulerException e) {
                e.printStackTrace();
            }
            return info;
        }
        /**
         * 
        * @Title: modifyQuartzJob
        * @Description: 修改定时器的 执行时间
        * @param name
        * @param group
        * @param time
        * @return
        * @return boolean
         */
        @RequestMapping("/modify")
        public boolean modifyQuartzJob(String name, String group, String time) {
            boolean flag = true;
            try {
                flag = quartzSchedulerManager.modifyJob(name, group, time);
            } catch (SchedulerException e) {
                e.printStackTrace();
            }
            return flag;
        }
        /**
         * 
        * @Title: pauseQuartzJob
        * @Description: 暂停指定 定时器
        * @param name
        * @param group
        * @return void
         */
        @RequestMapping(value = "/pause")
        public void pauseQuartzJob(String name, String group) {
            try {
                quartzSchedulerManager.pauseJob(name, group);
            } catch (SchedulerException e) {
                e.printStackTrace();
            }
        }
        /**
         * 
        * @Title: pauseAllQuartzJob
        * @Description: 暂停所有定时器
        * @return void
         */
        @RequestMapping(value = "/pauseAll")
        public void pauseAllQuartzJob() {
            try {
                quartzSchedulerManager.pauseAllJob();
            } catch (SchedulerException e) {
                e.printStackTrace();
            }
        }
        /**
         * 
        * @Title: deleteJob
        * @Description: 删除指定定时器
        * @param name
        * @param group
        * @return void
         */
        @RequestMapping(value = "/delete")
        public void deleteJob(String name, String group) {
            try {
                quartzSchedulerManager.deleteJob(name, group);
            } catch (SchedulerException e) {
                e.printStackTrace();
            }
        }
    }

**6、启动测试**  
启动类：

package com.chenqi.springBootQuartz;
    import org.springframework.boot.SpringApplication;
    import org.springframework.boot.autoconfigure.SpringBootApplication;
    import org.springframework.scheduling.annotation.EnableScheduling;
    @SpringBootApplication
    @EnableScheduling
    public class SpringBootQuartzApplication {
        public static void main(String[] args) {
            SpringApplication.run(SpringBootQuartzApplication.class, args);
        }
    }

![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlaXhpbl80MDYyMzczNg_size_16_color_FFFFFF_t_70]

定时器正常启动执行，我们试试通过API修改定时器执行时间  
浏览器访问：  
[http://localhost:8080/quartz/modify?name=job1&group=group1&time=0/10][http_localhost_8080_quartz_modify_name_job1_group_group1_time_0_10] \* \* \* \* ?

定时器执行间隔改为10秒执行一次，查看控制台日志  
![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlaXhpbl80MDYyMzczNg_size_16_color_FFFFFF_t_70 1]

可以看到，修改成功，至此，springBoot 集成 quartz完成，并实现了api动态管理。

[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlaXhpbl80MDYyMzczNg_size_16_color_FFFFFF_t_70]: /images/20211109/db8ad9f6c2c64507be1c77e8ae15c8ef.png
[http_localhost_8080_quartz_modify_name_job1_group_group1_time_0_10]: http://localhost:8080/quartz/modify?name=job1&group=group1&time=0/10
[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlaXhpbl80MDYyMzczNg_size_16_color_FFFFFF_t_70 1]: /images/20211109/655b9bfb9ef64874a8d482568031fc82.png