这篇文章主要介绍了SpringBoot集成Quartz动态定时任务，文中通过示例代码介绍的非常详细，对大家的学习或者工作具有一定的参考学习价值，需要的朋友们下面随着小编来一起学习学习吧(转载)

SpringBoot自带schedule

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
注意在程序启动的时候加上@EnableScheduling

@Scheduled(cron="0/5 * * * * ?")

 public void job(){
  System.out.println("每五秒执行一次");
 }
 

集成Quartz

如何搭建springboot就不再细说，官网和网上的教程很多。

maven依赖

<dependency>

   <groupId>org.quartz-scheduler</groupId>
   <artifactId>quartz</artifactId>
   <version>2.2.1</version>
  </dependency>
 
测试Job类
SchedulerQuartzJob1和SchedulerQuartzJob2代码差不多就不一一列出
package com.yvan.quartz.job;
 
import org.quartz.Job;
import org.quartz.JobExecutionContext;
import org.quartz.JobExecutionException;
/**
 * 实现Job接口
 * @author yvan
 *
 */
public class SchedulerQuartzJob1 implements Job{
 private void before(){
  System.out.println("任务开始执行");
 }
 
 @Override
 public void execute(JobExecutionContext arg0) throws JobExecutionException {
  before();
  System.out.println("开始："+System.currentTimeMillis());
  // TODO 业务
  System.out.println("结束："+System.currentTimeMillis());
  after();
 }
 
 private void after(){
  System.out.println("任务开始执行");
 }
 
}
任务调用处理
将其拆分成两个部分
实例化Job，将任务触发器加入任务调度中
private void startJob1(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(SchedulerQuartzJob1.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);
}
 
private void startJob2(Scheduler scheduler) throws SchedulerException {
 JobDetail jobDetail = JobBuilder.newJob(SchedulerQuartzJob2.class).withIdentity("job2", "group2").build();
 CronScheduleBuilder cronScheduleBuilder = CronScheduleBuilder.cronSchedule("0 0/5 * * * ?");
 CronTrigger cronTrigger = TriggerBuilder.newTrigger().withIdentity("job2", "group2")
   .withSchedule(cronScheduleBuilder).build();
 scheduler.scheduleJob(jobDetail, cronTrigger);
}
对外提供关于动态管理任务的方法
/**
 * 开始执行所有任务
 *
 * @throws SchedulerException
 */
public void startJob() throws SchedulerException {
 startJob1(scheduler);
 startJob2(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);
}
完整代码
package com.yvan.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.yvan.quartz.job.SchedulerQuartzJob1;
import com.yvan.quartz.job.SchedulerQuartzJob2;
/**
 * 任务调度处理
 * @author yvan
 *
 */
@Configuration
public class QuartzScheduler {
 // 任务调度
 @Autowired
 private Scheduler scheduler;
 
 /**
  * 开始执行所有任务
  *
  * @throws SchedulerException
  */
 public void startJob() throws SchedulerException {
  startJob1(scheduler);
  startJob2(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);
 }
 
 private void startJob1(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(SchedulerQuartzJob1.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);
 }
 
 private void startJob2(Scheduler scheduler) throws SchedulerException {
  JobDetail jobDetail = JobBuilder.newJob(SchedulerQuartzJob2.class).withIdentity("job2", "group2").build();
  CronScheduleBuilder cronScheduleBuilder = CronScheduleBuilder.cronSchedule("0 0/5 * * * ?");
  CronTrigger cronTrigger = TriggerBuilder.newTrigger().withIdentity("job2", "group2")
    .withSchedule(cronScheduleBuilder).build();
  scheduler.scheduleJob(jobDetail, cronTrigger);
 }
}
 
Scheduler 注入
这里采用监听spring容器加载完毕后事件，启动任务调用
将Scheduler交给spring初始化管理
package com.yvan.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;
 
@Configuration
public class ApplicationStartQuartzJobListener implements ApplicationListener<ContextRefreshedEvent>{
 @Autowired
 private QuartzScheduler quartzScheduler;
 
 /**
  * 初始启动quartz
  */
 @Override
 public void onApplicationEvent(ContextRefreshedEvent event) {
  try {
   quartzScheduler.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();
 }
 
}
 
封装API
这里封装的API主要是为了方便动态管理执行任务，当然依赖这些接口也可以做一个界面来更直观的操作管理任务，这个就不再赘述。
package com.yvan.controller.quartzApi;
 
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.yvan.quartz.QuartzScheduler;
 
/**
 * 这里并没有采用restful风格 只是简单封装了一下api
 *
 * @author yvan
 *
 */
@RestController
@RequestMapping("/quartz")
public class QuartzApiController {
 @Autowired
 private QuartzScheduler quartzScheduler;
 
 @RequestMapping("/start")
 public void startQuartzJob() {
  try {
   quartzScheduler.startJob();
  } catch (SchedulerException e) {
   e.printStackTrace();
  }
 }
 
 @RequestMapping("/info")
 public String getQuartzJob(String name, String group) {
  String info = null;
  try {
   info = quartzScheduler.getJobInfo(name, group);
  } catch (SchedulerException e) {
   e.printStackTrace();
  }
  return info;
 }
 
 @RequestMapping("/modify")
 public boolean modifyQuartzJob(String name, String group, String time) {
  boolean flag = true;
  try {
   flag = quartzScheduler.modifyJob(name, group, time);
  } catch (SchedulerException e) {
   e.printStackTrace();
  }
  return flag;
 }
 
 @RequestMapping(value = "/pause")
 public void pauseQuartzJob(String name, String group) {
  try {
   quartzScheduler.pauseJob(name, group);
  } catch (SchedulerException e) {
   e.printStackTrace();
  }
 }
 
 @RequestMapping(value = "/pauseAll")
 public void pauseAllQuartzJob() {
  try {
   quartzScheduler.pauseAllJob();
  } catch (SchedulerException e) {
   e.printStackTrace();
  }
 }
 
 @RequestMapping(value = "/delete")
 public void deleteJob(String name, String group) {
  try {
   quartzScheduler.deleteJob(name, group);
  } catch (SchedulerException e) {
   e.printStackTrace();
  }
 }
 
}
运行结果
任务已经启动...
18-03-02 14:39:46,879  INFO TomcatEmbeddedServletContainer:201 - Tomcat started on port(s): 8080 (http)
-03-02 14:39:46,883  INFO Start:57 - Started Start in 3.18 seconds (JVM running for 3.47)
任务开始执行
开始：1519972790003
结束：1519972790003
任务开始执行
任务开始执行
开始：1519972795000
结束：1519972795000
任务开始执行
 
以上所述为转载，如有侵权，请联系删除！！！

转载地址：https://www.jb51.net/article/160555.htm

posted @ 2021-09-14 20:11  让梦起航  阅读(74)  评论(0)    收藏  举报