Quartz：Quartz定时代码实现
1.添加pom.xml
<dependency> <groupId>org.quartz-scheduler</groupId> <artifactId>quartz</artifactId> <version>2.2.3</version> </dependency> <!-- https://mvnrepository.com/artifact/org.quartz-scheduler/quartz-jobs --> <dependency> <groupId>org.quartz-scheduler</groupId> <artifactId>quartz-jobs</artifactId> <version>2.2.3</version> </dependency>
2.添加配置文件，或者不添加使用默认也行，默认线程池数量为10
打开quartz的jar包，可以找到该配置 quartz.properties
复制到资源目录下修改如下
org.quartz.scheduler.instanceName: DemoQuartz org.quartz.scheduler.rmi.export: false org.quartz.scheduler.rmi.proxy: false org.quartz.scheduler.wrapJobExecutionInUserTransaction: false org.quartz.threadPool.class: org.quartz.simpl.SimpleThreadPool #线程池数量 org.quartz.threadPool.threadCount: 1 org.quartz.threadPool.threadPriority: 5 org.quartz.threadPool.threadsInheritContextClassLoaderOfInitializingThread: true org.quartz.jobStore.misfireThreshold: 60000 org.quartz.jobStore.class: org.quartz.simpl.RAMJobStore
3.编写job类
DemoJob.class,HelloJob.class
实现接口 org.quartz.Job
package com.yun.base.job;
import java.util.Calendar;
import org.quartz.Job;
import org.quartz.JobExecutionContext;
import org.quartz.JobExecutionException;
import org.quartz.SchedulerException;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
public class HelloJob implements Job {
private static final Logger LOGGER = LoggerFactory.getLogger(HelloJob.class);
@Override
public void execute(JobExecutionContext context)
throws JobExecutionException {
try {
LOGGER.info(context.getScheduler().getSchedulerName());
String jobParam = (String) context.getJobDetail().getJobDataMap().get("jobParam");
if (jobParam != null) {
LOGGER.info(jobParam.toString());
}
LOGGER.info(Integer.toString(Calendar.getInstance().get(Calendar.SECOND)));
} catch (SchedulerException e) {
e.printStackTrace();
}
}
}
4.编写任务管理工具类 JobSchedule
package com.yun.util;
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.SchedulerFactory;
import org.quartz.Trigger;
import org.quartz.TriggerBuilder;
import org.quartz.TriggerKey;
import org.quartz.impl.StdSchedulerFactory;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
public class JobSchedule {
private static final Logger LOGGER = LoggerFactory.getLogger(JobSchedule.class);
private static SchedulerFactory gSchedulerFactory = new StdSchedulerFactory();
private static String JOB_GROUP_NAME = "YUN_JOBGROUP_NAME";
private static String TRIGGER_GROUP_NAME = "YUN_TRIGGERGROUP_NAME";
private JobSchedule(){
}
/**
* @Description: 添加一个定时任务，使用默认的任务组名，触发器名，触发器组名
*
* @param jobName
* 任务名
* @param cls
* 任务
* @param cron
* 时间设置，参考quartz说明文档
* @throws SchedulerException
*
*/
public static void addJob(String jobName, Class cls, String cron)
throws SchedulerException {
Scheduler sched = gSchedulerFactory.getScheduler();
// 用于描叙Job实现类及其他的一些静态信息，构建一个作业实例
JobDetail jobDetail = JobBuilder.newJob(cls)
.withIdentity(jobName, JOB_GROUP_NAME).build();
// 构建一个触发器，规定触发的规则
Trigger trigger = TriggerBuilder.newTrigger()// 创建一个新的TriggerBuilder来规范一个触发器
.withIdentity(jobName, TRIGGER_GROUP_NAME)// 给触发器起一个名字和组名
.startNow()// 立即执行
.withSchedule(CronScheduleBuilder.cronSchedule(cron)) // 触发器的执行时间
.build();// 产生触发器
sched.scheduleJob(jobDetail, trigger);
LOGGER.debug("添加任务:{},{},{}",jobName,cls,cron);
// 启动
if (!sched.isShutdown()) {
sched.start();
}
}
/**
* @Description: 添加一个定时任务
*
* @param jobName
* 任务名
* @param jobGroupName
* 任务组名
* @param triggerName
* 触发器名
* @param triggerGroupName
* 触发器组名
* @param jobClass
* 任务
* @param cron
* 时间设置，参考quartz说明文档
*/
public static void addJob(String jobName, String jobGroupName,
String triggerName, String triggerGroupName, Class cls, String cron)
throws SchedulerException {
Scheduler sched = gSchedulerFactory.getScheduler();
// 用于描叙Job实现类及其他的一些静态信息，构建一个作业实例
JobDetail jobDetail = JobBuilder.newJob(cls)
.withIdentity(jobName, jobGroupName).build();
// 构建一个触发器，规定触发的规则
Trigger trigger = TriggerBuilder.newTrigger()// 创建一个新的TriggerBuilder来规范一个触发器
.withIdentity(jobName, triggerGroupName)// 给触发器起一个名字和组名
.startNow()// 立即执行
.withSchedule(CronScheduleBuilder.cronSchedule(cron)) // 触发器的执行时间
.build();// 产生触发器
sched.scheduleJob(jobDetail, trigger);
LOGGER.debug("添加任务:{},{},{},{},{},{}",jobName,jobGroupName,triggerName,triggerGroupName,cls,cron);
// 启动
if (!sched.isShutdown()) {
sched.start();
}
}
/**
* @Description: 修改一个任务的触发时间(使用默认的任务组名，触发器名，触发器组名)
*
* @param jobName
* @param cron
* @throws SchedulerException
*
*/
public static void modifyJobTime(String jobName, String cron) throws SchedulerException {
Scheduler sched = gSchedulerFactory.getScheduler();
TriggerKey triggerKey = new TriggerKey(jobName, TRIGGER_GROUP_NAME);
CronTrigger trigger = (CronTrigger) sched.getTrigger(triggerKey);
if (trigger == null) {
return;
}
String oldTime = trigger.getCronExpression();
if (!oldTime.equalsIgnoreCase(cron)) {
JobDetail jobDetail = sched.getJobDetail(new JobKey(jobName,
JOB_GROUP_NAME));
Class objJobClass = jobDetail.getJobClass();
removeJob(jobName);
addJob(jobName, objJobClass, cron);
LOGGER.debug("修改任务:{},{}",jobName,cron);
}
}
/**
* @Description: 移除一个任务(使用默认的任务组名，触发器名，触发器组名)
*
* @param jobName
*
* @throws SchedulerException
*/
public static void removeJob(String jobName) throws SchedulerException {
Scheduler sched = gSchedulerFactory.getScheduler();
JobKey jobKey = new JobKey(jobName, TRIGGER_GROUP_NAME);
// 停止触发器
sched.pauseJob(jobKey);
sched.unscheduleJob(new TriggerKey(jobName, TRIGGER_GROUP_NAME));// 移除触发器
sched.deleteJob(jobKey);// 删除任务
LOGGER.debug("移除任务:{}",jobName);
}
/**
* 移除任务
*
* @param jobName
* @param jobGroupName
* @param triggerName
* @param triggerGroupName
* @throws SchedulerException
*/
public static void removeJob(String jobName, String jobGroupName,
String triggerName, String triggerGroupName)
throws SchedulerException {
Scheduler sched = gSchedulerFactory.getScheduler();
JobKey jobKey = new JobKey(jobName, jobGroupName);
// 停止触发器
sched.pauseJob(jobKey);
sched.unscheduleJob(new TriggerKey(jobName, triggerGroupName));// 移除触发器
sched.deleteJob(jobKey);// 删除任务
LOGGER.debug("移除任务:{},{},{},{},{},{}",jobName,jobGroupName,triggerName,triggerGroupName);
}
/**
* 启动所有任务
*
* @throws SchedulerException
*/
public static void startJobs() throws SchedulerException {
Scheduler sched = gSchedulerFactory.getScheduler();
sched.start();
LOGGER.debug("启动所有任务");
}
/**
* 关闭所有定时任务
*
* @throws SchedulerException
*
*/
public static void shutdownJobs() throws SchedulerException {
Scheduler sched = gSchedulerFactory.getScheduler();
if (!sched.isShutdown()) {
sched.shutdown();
LOGGER.debug("关闭所有任务");
}
}
}
5.测试类
@Test
public void testTask() {
try {
String job_name = "动态任务调度";
System.out.println("【系统启动】开始(每1秒输出一次)...");
JobSchedule.addJob(job_name, DemoJob.class, "0/1 * * * * ?");
Thread.sleep(5000);
System.out.println("【修改时间】开始(每2秒输出一次)...");
JobSchedule.modifyJobTime(job_name, "10/2 * * * * ?");
Thread.sleep(6000);
System.out.println("【移除定时】开始...");
JobSchedule.removeJob(job_name);
System.out.println("【移除定时】成功");
System.out.println("【再次添加定时任务】开始(每10秒输出一次)...");
JobSchedule.addJob(job_name, HelloJob.class, "*/10 * * * * ?");
Thread.sleep(60000);
System.out.println("【移除定时】开始...");
JobSchedule.removeJob(job_name);
System.out.println("【移除定时】成功");
} catch (Exception e) {
e.printStackTrace();
}
}
测试结果
【系统启动】开始(每1秒输出一次)... 2017-07-20 18:11:03.026 [main] DEBUG com.yun.util.JobSchedule - 添加任务:动态任务调度,class com.yun.base.job.DemoJob,0/1 * * * * ? 2017-07-20 18:11:03.042 [DemoQuartz_Worker-1] INFO com.yun.base.job.DemoJob - DemoQuartz 2017-07-20 18:11:03.042 [DemoQuartz_Worker-1] INFO com.yun.base.job.DemoJob - 3 2017-07-20 18:11:04.001 [DemoQuartz_Worker-1] INFO com.yun.base.job.DemoJob - DemoQuartz 2017-07-20 18:11:04.001 [DemoQuartz_Worker-1] INFO com.yun.base.job.DemoJob - 4 2017-07-20 18:11:05.004 [DemoQuartz_Worker-1] INFO com.yun.base.job.DemoJob - DemoQuartz 2017-07-20 18:11:05.004 [DemoQuartz_Worker-1] INFO com.yun.base.job.DemoJob - 5 2017-07-20 18:11:06.008 [DemoQuartz_Worker-1] INFO com.yun.base.job.DemoJob - DemoQuartz 2017-07-20 18:11:06.008 [DemoQuartz_Worker-1] INFO com.yun.base.job.DemoJob - 6 2017-07-20 18:11:07.012 [DemoQuartz_Worker-1] INFO com.yun.base.job.DemoJob - DemoQuartz 2017-07-20 18:11:07.012 [DemoQuartz_Worker-1] INFO com.yun.base.job.DemoJob - 7 2017-07-20 18:11:08.012 [DemoQuartz_Worker-1] INFO com.yun.base.job.DemoJob - DemoQuartz 2017-07-20 18:11:08.013 [DemoQuartz_Worker-1] INFO com.yun.base.job.DemoJob - 8 【修改时间】开始(每2秒输出一次)... 2017-07-20 18:11:08.043 [main] DEBUG com.yun.util.JobSchedule - 移除任务:动态任务调度 2017-07-20 18:11:08.047 [main] DEBUG com.yun.util.JobSchedule - 添加任务:动态任务调度,class com.yun.base.job.DemoJob,10/2 * * * * ? 2017-07-20 18:11:08.047 [main] DEBUG com.yun.util.JobSchedule - 修改任务:动态任务调度,10/2 * * * * ? 2017-07-20 18:11:10.001 [DemoQuartz_Worker-1] INFO com.yun.base.job.DemoJob - DemoQuartz 2017-07-20 18:11:10.001 [DemoQuartz_Worker-1] INFO com.yun.base.job.DemoJob - 10 2017-07-20 18:11:12.013 [DemoQuartz_Worker-1] INFO com.yun.base.job.DemoJob - DemoQuartz 2017-07-20 18:11:12.013 [DemoQuartz_Worker-1] INFO com.yun.base.job.DemoJob - 12 2017-07-20 18:11:14.005 [DemoQuartz_Worker-1] INFO com.yun.base.job.DemoJob - DemoQuartz 2017-07-20 18:11:14.005 [DemoQuartz_Worker-1] INFO com.yun.base.job.DemoJob - 14 【移除定时】开始... 2017-07-20 18:11:14.054 [main] DEBUG com.yun.util.JobSchedule - 移除任务:动态任务调度 【移除定时】成功 【再次添加定时任务】开始(每10秒输出一次)... 2017-07-20 18:11:14.054 [main] DEBUG com.yun.util.JobSchedule - 添加任务:动态任务调度,class com.yun.base.job.HelloJob,*/10 * * * * ? 2017-07-20 18:11:20.010 [DemoQuartz_Worker-1] INFO com.yun.base.job.HelloJob - DemoQuartz 2017-07-20 18:11:20.010 [DemoQuartz_Worker-1] INFO com.yun.base.job.HelloJob - 20 2017-07-20 18:11:30.006 [DemoQuartz_Worker-1] INFO com.yun.base.job.HelloJob - DemoQuartz 2017-07-20 18:11:30.006 [DemoQuartz_Worker-1] INFO com.yun.base.job.HelloJob - 30 2017-07-20 18:11:40.004 [DemoQuartz_Worker-1] INFO com.yun.base.job.HelloJob - DemoQuartz 2017-07-20 18:11:40.005 [DemoQuartz_Worker-1] INFO com.yun.base.job.HelloJob - 40 2017-07-20 18:11:50.007 [DemoQuartz_Worker-1] INFO com.yun.base.job.HelloJob - DemoQuartz 2017-07-20 18:11:50.007 [DemoQuartz_Worker-1] INFO com.yun.base.job.HelloJob - 50 2017-07-20 18:12:00.010 [DemoQuartz_Worker-1] INFO com.yun.base.job.HelloJob - DemoQuartz 2017-07-20 18:12:00.010 [DemoQuartz_Worker-1] INFO com.yun.base.job.HelloJob - 0 2017-07-20 18:12:10.000 [DemoQuartz_Worker-1] INFO com.yun.base.job.HelloJob - DemoQuartz 2017-07-20 18:12:10.000 [DemoQuartz_Worker-1] INFO com.yun.base.job.HelloJob - 10 【移除定时】开始... 2017-07-20 18:12:14.060 [main] DEBUG com.yun.util.JobSchedule - 移除任务:动态任务调度 【移除定时】成功
文章转载至：https://www.cnblogs.com/yun965861480/p/7211327.html?utm_source=itdadao&utm_medium=referral
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作者：怒吼的萝卜
链接：http://www.cnblogs.com/nhdlb/
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