SpringBoot自带schedule
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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");
}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
执行时间表达式：
表达式示例：
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
org.quartz-scheduler
quartz
2.2.1
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{
@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
以上所述是小编给大家介绍的SpringBoot集成Quartz动态定时任务详解整合，希望对大家有所帮助，如果大家有任何疑问请给我留言，小编会及时回复大家的。在此也非常感谢大家对创新互联网站的支持！
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