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原
Quartz动态添加，修改，删除任务(暂停，任务状态，恢复，最近触发时间)
本案例采用quartz-2.2.3.jarphp
入门案例，执行比较简单的任务html
QuartzManager.java (任务的管理)前端
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import java.text.ParseException;
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import java.text.SimpleDateFormat;
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import java.util.ArrayList;
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import java.util.Date;
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import java.util.List;
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import org.quartz.CronScheduleBuilder;
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import org.quartz.CronTrigger;
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import org.quartz.JobBuilder;
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import org.quartz.JobDetail;
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import org.quartz.JobKey;
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import org.quartz.Scheduler;
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import org.quartz.SchedulerException;
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import org.quartz.SchedulerFactory;
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import org.quartz.Trigger;
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import org.quartz.Trigger.TriggerState;
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import org.quartz.TriggerBuilder;
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import org.quartz.TriggerKey;
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import org.quartz.TriggerUtils;
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import org.quartz.impl.StdSchedulerFactory;
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import org.quartz.impl.triggers.CronTriggerImpl;
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public class QuartzManager {
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private static SchedulerFactory gSchedulerFactory = new StdSchedulerFactory();
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private static String JOB_GROUP_NAME = "MY_JOBGROUP_NAME";
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private static String TRIGGER_GROUP_NAME = "MY_TRIGGERGROUP_NAME";
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/**
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* @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
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* @param jobName
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* 任务名
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* @param cls
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* 任务
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* @param time
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* 时间设置，参考quartz说明文档
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*/
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public static void addJob(String jobName, Class cls, String cron) {
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try {
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Scheduler sched = gSchedulerFactory.getScheduler();
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JobDetail job = JobBuilder.newJob(cls).withIdentity(jobName, JOB_GROUP_NAME).build();
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// 表达式调度构建器
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CronScheduleBuilder scheduleBuilder = CronScheduleBuilder.cronSchedule(cron);
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// 按新的cronExpression表达式构建一个新的trigger
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Trigger trigger = TriggerBuilder.newTrigger().withIdentity(jobName, TRIGGER_GROUP_NAME)
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.withSchedule(scheduleBuilder).build();
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// 交给scheduler去调度
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sched.scheduleJob(job, trigger);
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// 启动
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if (!sched.isShutdown()) {
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sched.start();
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System.err.println( "添加任务:"+jobName);
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}
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} catch (Exception e) {
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throw new RuntimeException(e);
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}
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}
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/**
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* @Description: 添加一个定时任务
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* @param jobName
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* 任务名
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* @param jobGroupName
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* 任务组名
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* @param triggerName
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* 触发器名
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* @param triggerGroupName
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* 触发器组名
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* @param jobClass
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* 任务
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* @param time
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* 时间设置，参考quartz说明文档
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*/
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public static void addJob(String jobName, String jobGroupName, String triggerName, String triggerGroupName,
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Class jobClass, String cron) {
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try {
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Scheduler sched = gSchedulerFactory.getScheduler();
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JobDetail job = JobBuilder.newJob(jobClass).withIdentity(jobName, jobGroupName).build();
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// 表达式调度构建器
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CronScheduleBuilder scheduleBuilder = CronScheduleBuilder.cronSchedule(cron);
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// 按新的cronExpression表达式构建一个新的trigger
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Trigger trigger = TriggerBuilder.newTrigger().withIdentity(triggerName, triggerGroupName)
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.withSchedule(scheduleBuilder).build();
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sched.scheduleJob(job, trigger);
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// 启动
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if (!sched.isShutdown()) {
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sched.start();
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}
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} catch (Exception e) {
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throw new RuntimeException(e);
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}
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}
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/**
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* @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)
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* @param jobName
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* @param time
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*/
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public static void modifyJobTime(String jobName, String cron) {
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TriggerKey triggerKey = TriggerKey.triggerKey(jobName, TRIGGER_GROUP_NAME);
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try {
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Scheduler sched = gSchedulerFactory.getScheduler();
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CronTrigger trigger = (CronTrigger) sched.getTrigger(triggerKey);
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if (trigger == null) {
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return;
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}
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String oldTime = trigger.getCronExpression();
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if (!oldTime.equalsIgnoreCase(cron)) {
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CronScheduleBuilder scheduleBuilder = CronScheduleBuilder.cronSchedule(cron);
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// 按新的cronExpression表达式从新构建trigger
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trigger = trigger.getTriggerBuilder().withIdentity(triggerKey).withSchedule(scheduleBuilder).build();
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// 按新的trigger从新设置job执行
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sched.rescheduleJob(triggerKey, trigger);
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}
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} catch (Exception e) {
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throw new RuntimeException(e);
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}
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}
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/**
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* @Description:修改任务，（能够修改任务名，任务类，触发时间）
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* 原理：移除原来的任务，添加新的任务
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* @param oldJobName ：原任务名
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* @param jobName
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* @param jobclass
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* @param cron
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* @date 2018年5月23日 上午9:13:10
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*/
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public static void modifyJob(String oldJobName, String jobName, Class jobclass, String cron) {
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/*
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* removeJob(oldJobName);
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* addJob(jobName, jobclass, cron);
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* System.err.println("修改任务"+oldJobName);
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*/
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TriggerKey triggerKey = TriggerKey.triggerKey(oldJobName, TRIGGER_GROUP_NAME);
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JobKey jobKey = JobKey.jobKey(oldJobName, JOB_GROUP_NAME);
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try {
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Scheduler sched = gSchedulerFactory.getScheduler();
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Trigger trigger = (Trigger) sched.getTrigger(triggerKey);
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if (trigger == null) {
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return;
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}
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sched.pauseTrigger(triggerKey); // 中止触发器
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sched.unscheduleJob(triggerKey); // 移除触发器
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sched.deleteJob(jobKey); // 删除任务
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System.err.println( "移除任务:" + oldJobName);
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JobDetail job = JobBuilder.newJob(jobclass).withIdentity(jobName, JOB_GROUP_NAME).build();
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// 表达式调度构建器
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CronScheduleBuilder scheduleBuilder = CronScheduleBuilder.cronSchedule(cron);
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// 按新的cronExpression表达式构建一个新的trigger
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Trigger newTrigger = TriggerBuilder.newTrigger().withIdentity(jobName, TRIGGER_GROUP_NAME)
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.withSchedule(scheduleBuilder).build();
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// 交给scheduler去调度
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sched.scheduleJob(job, newTrigger);
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// 启动
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if (!sched.isShutdown()) {
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sched.start();
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System.err.println( "添加新任务:" + jobName);
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}
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System.err.println( "修改任务【" + oldJobName + "】为:" + jobName);
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} catch (Exception e) {
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throw new RuntimeException(e);
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}
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}
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/**
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* @Description: 修改一个任务的触发时间
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* @param triggerName
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* @param triggerGroupName
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* @param time
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*/
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public static void modifyJobTime(String triggerName, String triggerGroupName, String cron) {
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TriggerKey triggerKey = TriggerKey.triggerKey(triggerName, triggerGroupName);
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try {
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Scheduler sched = gSchedulerFactory.getScheduler();
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CronTrigger trigger = (CronTrigger) sched.getTrigger(triggerKey);
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if (trigger == null) {
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return;
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}
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String oldTime = trigger.getCronExpression();
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if (!oldTime.equalsIgnoreCase(cron)) {
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// trigger已存在，则更新相应的定时设置
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CronScheduleBuilder scheduleBuilder = CronScheduleBuilder.cronSchedule(cron);
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// 按新的cronExpression表达式从新构建trigger
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trigger = trigger.getTriggerBuilder().withIdentity(triggerKey).withSchedule(scheduleBuilder).build();
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// 按新的trigger从新设置job执行
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sched.resumeTrigger(triggerKey);
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}
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} catch (Exception e) {
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throw new RuntimeException(e);
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}
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}
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/**
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* @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)
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* @param jobName
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*/
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public static void removeJob(String jobName) {
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TriggerKey triggerKey = TriggerKey.triggerKey(jobName, TRIGGER_GROUP_NAME);
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JobKey jobKey = JobKey.jobKey(jobName, JOB_GROUP_NAME);
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try {
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Scheduler sched = gSchedulerFactory.getScheduler();
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Trigger trigger = (Trigger) sched.getTrigger(triggerKey);
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if (trigger == null) {
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return;
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}
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sched.pauseTrigger(triggerKey); // 中止触发器
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sched.unscheduleJob(triggerKey); // 移除触发器
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sched.deleteJob(jobKey); // 删除任务
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System.err.println( "移除任务:"+jobName);
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} catch (Exception e) {
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throw new RuntimeException(e);
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}
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}
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/**
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* @Description: 移除一个任务
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* @param jobName
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* @param jobGroupName
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* @param triggerName
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* @param triggerGroupName
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*/
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public static void removeJob(String jobName, String jobGroupName, String triggerName, String triggerGroupName) {
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TriggerKey triggerKey = TriggerKey.triggerKey(jobName, triggerGroupName);
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JobKey jobKey = JobKey.jobKey(jobName, jobGroupName);
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try {
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Scheduler sched = gSchedulerFactory.getScheduler();
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sched.pauseTrigger(triggerKey); // 中止触发器
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sched.unscheduleJob(triggerKey); // 移除触发器
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sched.deleteJob(jobKey); // 删除任务
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} catch (Exception e) {
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throw new RuntimeException(e);
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}
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}
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/**
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* @Description:暂停一个任务(使用默认组名)
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* @param jobName
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*/
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public static void pauseJob(String jobName) {
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JobKey jobKey = JobKey.jobKey(jobName, JOB_GROUP_NAME);
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try {
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Scheduler sched = gSchedulerFactory.getScheduler();
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sched.pauseJob(jobKey);
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} catch (SchedulerException e) {
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e.printStackTrace();
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}
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}
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/**
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* @Description:暂停一个任务
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* @param jobName
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* @param jobGroupName
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*/
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public static void pauseJob(String jobName, String jobGroupName) {
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JobKey jobKey = JobKey.jobKey(jobName, jobGroupName);
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try {
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Scheduler sched = gSchedulerFactory.getScheduler();
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sched.pauseJob(jobKey);
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} catch (SchedulerException e) {
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e.printStackTrace();
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}
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}
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/**
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* @Description:恢复一个任务(使用默认组名)
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* @param jobName
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*/
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public static void resumeJob(String jobName) {
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JobKey jobKey = JobKey.jobKey(jobName, JOB_GROUP_NAME);
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try {
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Scheduler sched = gSchedulerFactory.getScheduler();
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sched.resumeJob(jobKey);
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} catch (SchedulerException e) {
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e.printStackTrace();
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}
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}
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/**
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* @Description:恢复一个任务
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* @param jobName
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* @param jobGroupName
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* @date 2018年5月17日 上午9:56:09
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*/
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public static void resumeJob(String jobName, String jobGroupName) {
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JobKey jobKey = JobKey.jobKey(jobName, jobGroupName);
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try {
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Scheduler sched = gSchedulerFactory.getScheduler();
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sched.resumeJob(jobKey);
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} catch (SchedulerException e) {
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e.printStackTrace();
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}
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}
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/**
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* @Description:启动全部定时任务
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*/
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public static void startJobs() {
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try {
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Scheduler sched = gSchedulerFactory.getScheduler();
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sched.start();
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} catch (Exception e) {
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throw new RuntimeException(e);
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}
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}
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/**
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* @Description 关闭全部定时任务
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*/
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public static void shutdownJobs() {
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try {
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Scheduler sched = gSchedulerFactory.getScheduler();
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if (!sched.isShutdown()) {
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sched.shutdown();
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}
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} catch (Exception e) {
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throw new RuntimeException(e);
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}
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}
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/**
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* @Description: 当即运行任务，这里的当即运行，只会运行一次，方便测试时用。
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* @param jobName
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* @param jobGroupName
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* @date 2018年5月17日 上午10:03:26
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*/
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public static void triggerJob(String jobName) {
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JobKey jobKey = JobKey.jobKey(jobName, JOB_GROUP_NAME);
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try {
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Scheduler sched = gSchedulerFactory.getScheduler();
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sched.triggerJob(jobKey);
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} catch (SchedulerException e) {
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e.printStackTrace();
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}
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}
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/**
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* @Description: 当即运行任务，这里的当即运行，只会运行一次，方便测试时用。
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* @param jobName
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* @param jobGroupName
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* @date 2018年5月17日 上午10:03:26
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*/
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public static void triggerJob(String jobName, String jobGroupName) {
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JobKey jobKey = JobKey.jobKey(jobName, jobGroupName);
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try {
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Scheduler sched = gSchedulerFactory.getScheduler();
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sched.triggerJob(jobKey);
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} catch (SchedulerException e) {
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e.printStackTrace();
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}
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}
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/**
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* @Description: 获取任务状态
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* NONE: 不存在
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* NORMAL: 正常
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* PAUSED: 暂停
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* COMPLETE:完成
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* ERROR : 错误
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* BLOCKED : 阻塞
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* @param jobName 触发器名
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* @date 2018年5月21日 下午2:13:45
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*/
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public static String getTriggerState(String jobName){
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TriggerKey triggerKey = TriggerKey.triggerKey(jobName, TRIGGER_GROUP_NAME);
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String name = null;
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try {
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Scheduler sched = gSchedulerFactory.getScheduler();
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TriggerState triggerState = sched.getTriggerState(triggerKey);
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name = triggerState.name();
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} catch (SchedulerException e) {
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e.printStackTrace();
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}
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return name;
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}
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/**
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* @Description:获取最近8次执行时间
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* @param cron
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* @date 2018年5月24日 下午5:13:03
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*/
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public static List<String> getRecentTriggerTime(String cron) {
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List<String> list = new ArrayList<String>();
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try {
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CronTriggerImpl cronTriggerImpl = new CronTriggerImpl();
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cronTriggerImpl.setCronExpression(cron);
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// 这个是重点，一行代码搞定
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List<Date> dates = TriggerUtils.computeFireTimes(cronTriggerImpl, null, 8);
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SimpleDateFormat dateFormat = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
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for (Date date : dates) {
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list.add(dateFormat.format(date));
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}
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} catch (ParseException e) {
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e.printStackTrace();
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}
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return list;
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}
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}
MyJob.java 执行的任务java
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import java.text.SimpleDateFormat;
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import java.util.Calendar;
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import org.quartz.Job;
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import org.quartz.JobExecutionContext;
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import org.quartz.JobExecutionException;
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/**
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* @Description:
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* @date 2018年5月16日
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*/
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public class MyJob implements Job {
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public void execute(JobExecutionContext context) throws JobExecutionException {
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System.err.println( "任务运行开始-------- start --------");
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try {
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String jobName = context.getJobDetail().getKey().getName();
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String jobGroup = context.getJobDetail().getKey().getGroup();
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String triggerName = context.getTrigger().getKey().getName();
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String triggerGroup = context.getTrigger().getKey().getGroup();
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SimpleDateFormat dateFormat = new SimpleDateFormat("yyyy年MM月dd日 HH时mm分ss秒");
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System.err.println( "触发器Key:" + triggerName + ".." + triggerGroup + " 正在执行...");
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System.err.println( "任务Key:" + jobName + ".." + jobGroup + " 正在执行，执行时间: "
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+ dateFormat.format(Calendar.getInstance().getTime()));
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} catch (Exception e) {
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System.err.println( "捕获异常==="+e);
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}
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System.err.println( "任务运行结束-------- end --------");
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}
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}
测试类 LoadTask.javapython
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public class LoadTask {
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public static void main(String[] args) {
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System.err.println( "【系统启动】");
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String corn = "0/5 * * * * ?";
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//QuartzManager.addJob("job1", "jobGooup", "trigger1", "triggerGroup", MyJob.class, corn);
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QuartzManager.addJob( "job1", MyJob.class, corn);
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System.err.println( "添加任务一");
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QuartzManager.getTriggerState( "jobs");
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//睡眠一分钟
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try {
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Thread.sleep( 60L * 1000L);
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} catch (InterruptedException e) {
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e.printStackTrace();
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}
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QuartzManager.modifyJobTime( "job1", "0/3 * * * * ?");
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System.out.println( "修改触发时间");
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try {
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Thread.sleep( 15L * 1000L);
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} catch (InterruptedException e) {
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e.printStackTrace();
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}
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QuartzManager.removeJob( "job1");
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//QuartzManager.removeJob("job1", "jobGooup", "trigger1", "triggerGroup");
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System.out.println( "删除任务");
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try {
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Thread.sleep( 5L * 1000L);
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} catch (InterruptedException e) {
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e.printStackTrace();
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}
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System.out.println( "【添加定时任务】");
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QuartzManager.addJob( "job1", MyJob.class, corn);
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//QuartzManager.shutdownJobs();
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//System.out.println("中止全部任务");
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try {
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Thread.sleep( 5L * 1000L);
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} catch (InterruptedException e) {
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e.printStackTrace();
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}
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System.out.println( "【暂停定时任务】");
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QuartzManager.pauseJob( "job1");
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System.out.println( "【当即运行一次】");
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QuartzManager.triggerJob( "job1");
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try {
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Thread.sleep( 5L * 1000L);
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} catch (InterruptedException e) {
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e.printStackTrace();
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}
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System.out.println( "【恢复定时任务】");
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QuartzManager.resumeJob( "job1");
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try {
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Thread.sleep( 5L * 1000L);
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} catch (InterruptedException e) {
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e.printStackTrace();
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}
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QuartzManager.shutdownJobs();
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}
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}