quartz 任务高度的动态修改

package com.example.demo.controller;

import org.quartz.*;
import org.quartz.impl.StdSchedulerFactory;
import org.quartz.impl.triggers.CronTriggerImpl;
import org.springframework.stereotype.Service;

import java.text.SimpleDateFormat;
import java.util.ArrayList;
import java.util.Calendar;
import java.util.List;

public class QuatzManager {

    private static SchedulerFactory gSchedulerFactory = new StdSchedulerFactory();
    private static String JOB_GROUP_NAME = "MY_JOBGROUP_NAME";
    private static String TRIGGER_GROUP_NAME = "MY_TRIGGERGROUP_NAME";

    /**
     * @param jobName 任务名
     * @param cls     任务
     * @param time    时间设置，参考quartz说明文档
     * @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
     */
    @SuppressWarnings({"rawtypes", "unchecked"})
    public static void addJob(String jobName, Class cls, String cron) {
        try {
            Scheduler sched = gSchedulerFactory.getScheduler();
            JobDetail job = JobBuilder.newJob(cls).withIdentity(jobName, JOB_GROUP_NAME).build();
            // 表达式调度构建器
            CronScheduleBuilder scheduleBuilder = CronScheduleBuilder.cronSchedule(cron);
            // 按新的cronExpression表达式构建一个新的trigger
            Trigger trigger = TriggerBuilder.newTrigger().withIdentity(jobName, TRIGGER_GROUP_NAME)
                    .withSchedule(scheduleBuilder).build();

            // 交给scheduler去调度
            sched.scheduleJob(job, trigger);

            // 启动
            if (!sched.isShutdown()) {
                sched.start();
                System.err.println("添加任务:" + jobName);
            }
        } catch (Exception e) {
            throw new RuntimeException(e);
        }
    }

    /**
     * @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 time             时间设置，参考quartz说明文档
     * @Description: 添加一个定时任务
     */
    @SuppressWarnings({"rawtypes", "unchecked"})
    public static void addJob(String jobName, String jobGroupName, String triggerName, String triggerGroupName,
                              Class jobClass, String cron) {
        try {
            Scheduler sched = gSchedulerFactory.getScheduler();
            JobDetail job = JobBuilder.newJob(jobClass).withIdentity(jobName, jobGroupName).build();
            // 表达式调度构建器
            CronScheduleBuilder scheduleBuilder = CronScheduleBuilder.cronSchedule(cron);
            // 按新的cronExpression表达式构建一个新的trigger
            Trigger trigger = TriggerBuilder.newTrigger().withIdentity(triggerName, triggerGroupName)
                    .withSchedule(scheduleBuilder).build();
            sched.scheduleJob(job, trigger);
            // 启动
            if (!sched.isShutdown()) {
                sched.start();
            }
        } catch (Exception e) {
            throw new RuntimeException(e);
        }
    }

    /**
     * @param jobName
     * @param time
     * @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)
     */
    public static void modifyJobTime(String jobName, String cron) {
        TriggerKey triggerKey = TriggerKey.triggerKey(jobName, TRIGGER_GROUP_NAME);

        try {
            Scheduler sched = gSchedulerFactory.getScheduler();
            CronTrigger trigger = (CronTrigger) sched.getTrigger(triggerKey);
            if (trigger == null) {
                return;
            }
            String oldTime = trigger.getCronExpression();
            if (!oldTime.equalsIgnoreCase(cron)) {
                CronScheduleBuilder scheduleBuilder = CronScheduleBuilder.cronSchedule(cron);
                // 按新的cronExpression表达式重新构建trigger
                trigger = trigger.getTriggerBuilder().withIdentity(triggerKey).withSchedule(scheduleBuilder).build();
                // 按新的trigger重新设置job执行
                sched.rescheduleJob(triggerKey, trigger);
            }
        } catch (Exception e) {
            throw new RuntimeException(e);
        }
    }


    /**
     * @param oldJobName ：原任务名
     * @param jobName
     * @param jobclass
     * @param cron
     * @Description:修改任务，（可以修改任务名，任务类，触发时间） 原理：移除原来的任务，添加新的任务
     * @date 2018年5月23日 上午9:13:10
     */
    @SuppressWarnings({"rawtypes", "unchecked"})
    public static void modifyJob(String oldJobName, String jobName, Class jobclass, String cron) {
        /*
         * removeJob(oldJobName);
         * addJob(jobName, jobclass, cron);
         * System.err.println("修改任务"+oldJobName);
         */
        TriggerKey triggerKey = TriggerKey.triggerKey(oldJobName, TRIGGER_GROUP_NAME);
        JobKey jobKey = JobKey.jobKey(oldJobName, JOB_GROUP_NAME);
        try {
            Scheduler sched = gSchedulerFactory.getScheduler();
            Trigger trigger = (Trigger) sched.getTrigger(triggerKey);
            if (trigger == null) {
                return;
            }
            sched.pauseTrigger(triggerKey);// 停止触发器
            sched.unscheduleJob(triggerKey);// 移除触发器
            sched.deleteJob(jobKey);// 删除任务
            System.err.println("移除任务:" + oldJobName);

            JobDetail job = JobBuilder.newJob(jobclass).withIdentity(jobName, JOB_GROUP_NAME).build();
            // 表达式调度构建器
            CronScheduleBuilder scheduleBuilder = CronScheduleBuilder.cronSchedule(cron);
            // 按新的cronExpression表达式构建一个新的trigger
            Trigger newTrigger = TriggerBuilder.newTrigger().withIdentity(jobName, TRIGGER_GROUP_NAME)
                    .withSchedule(scheduleBuilder).build();

            // 交给scheduler去调度
            sched.scheduleJob(job, newTrigger);

            // 启动
            if (!sched.isShutdown()) {
                sched.start();
                System.err.println("添加新任务:" + jobName);
            }
            System.err.println("修改任务【" + oldJobName + "】为:" + jobName);
        } catch (Exception e) {
            throw new RuntimeException(e);
        }

    }


    /**
     * @param triggerName
     * @param triggerGroupName
     * @param time
     * @Description: 修改一个任务的触发时间
     */
    public static void modifyJobTime(String triggerName, String triggerGroupName, String cron) {
        TriggerKey triggerKey = TriggerKey.triggerKey(triggerName, triggerGroupName);
        try {
            Scheduler sched = gSchedulerFactory.getScheduler();
            CronTrigger trigger = (CronTrigger) sched.getTrigger(triggerKey);
            if (trigger == null) {
                return;
            }
            String oldTime = trigger.getCronExpression();
            if (!oldTime.equalsIgnoreCase(cron)) {
                // trigger已存在，则更新相应的定时设置
                CronScheduleBuilder scheduleBuilder = CronScheduleBuilder.cronSchedule(cron);
                // 按新的cronExpression表达式重新构建trigger
                trigger = trigger.getTriggerBuilder().withIdentity(triggerKey).withSchedule(scheduleBuilder).build();
                // 按新的trigger重新设置job执行
                sched.resumeTrigger(triggerKey);
            }
        } catch (Exception e) {
            throw new RuntimeException(e);
        }
    }

    /**
     * @param jobName
     * @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)
     */
    public static void removeJob(String jobName) {
        TriggerKey triggerKey = TriggerKey.triggerKey(jobName, TRIGGER_GROUP_NAME);
        JobKey jobKey = JobKey.jobKey(jobName, JOB_GROUP_NAME);
        try {
            Scheduler sched = gSchedulerFactory.getScheduler();
            Trigger trigger = (Trigger) sched.getTrigger(triggerKey);
            if (trigger == null) {
                return;
            }
            sched.pauseTrigger(triggerKey);// 停止触发器
            sched.unscheduleJob(triggerKey);// 移除触发器
            sched.deleteJob(jobKey);// 删除任务
            System.err.println("移除任务:" + jobName);
        } catch (Exception e) {
            throw new RuntimeException(e);
        }
    }

    /**
     * @param jobName
     * @param jobGroupName
     * @param triggerName
     * @param triggerGroupName
     * @Description: 移除一个任务
     */
    public static void removeJob(String jobName, String jobGroupName, String triggerName, String triggerGroupName) {
        TriggerKey triggerKey = TriggerKey.triggerKey(jobName, triggerGroupName);
        JobKey jobKey = JobKey.jobKey(jobName, jobGroupName);
        try {
            Scheduler sched = gSchedulerFactory.getScheduler();
            sched.pauseTrigger(triggerKey);// 停止触发器
            sched.unscheduleJob(triggerKey);// 移除触发器
            sched.deleteJob(jobKey);// 删除任务
        } catch (Exception e) {
            throw new RuntimeException(e);
        }
    }

    /**
     * @param jobName
     * @Description:暂停一个任务(使用默认组名)
     */
    public static void pauseJob(String jobName) {
        JobKey jobKey = JobKey.jobKey(jobName, JOB_GROUP_NAME);
        try {
            Scheduler sched = gSchedulerFactory.getScheduler();
            sched.pauseJob(jobKey);
        } catch (SchedulerException e) {
            e.printStackTrace();
        }
    }

    /**
     * @param jobName
     * @param jobGroupName
     * @Description:暂停一个任务
     */
    public static void pauseJob(String jobName, String jobGroupName) {
        JobKey jobKey = JobKey.jobKey(jobName, jobGroupName);
        try {
            Scheduler sched = gSchedulerFactory.getScheduler();
            sched.pauseJob(jobKey);
        } catch (SchedulerException e) {
            e.printStackTrace();
        }
    }

    /**
     * @param jobName
     * @Description:恢复一个任务(使用默认组名)
     */
    public static void resumeJob(String jobName) {
        JobKey jobKey = JobKey.jobKey(jobName, JOB_GROUP_NAME);
        try {
            Scheduler sched = gSchedulerFactory.getScheduler();
            sched.resumeJob(jobKey);
        } catch (SchedulerException e) {
            e.printStackTrace();
        }
    }

    /**
     * @param jobName
     * @param jobGroupName
     * @Description:恢复一个任务
     * @date 2018年5月17日 上午9:56:09
     */
    public static void resumeJob(String jobName, String jobGroupName) {
        JobKey jobKey = JobKey.jobKey(jobName, jobGroupName);
        try {
            Scheduler sched = gSchedulerFactory.getScheduler();
            sched.resumeJob(jobKey);
        } catch (SchedulerException e) {
            e.printStackTrace();
        }
    }

    /**
     * @Description:启动所有定时任务
     */
    public static void startJobs() {
        try {
            Scheduler sched = gSchedulerFactory.getScheduler();
            sched.start();
        } catch (Exception e) {
            throw new RuntimeException(e);
        }
    }

    /**
     * @Description 关闭所有定时任务
     */
    public static void shutdownJobs() {
        try {
            Scheduler sched = gSchedulerFactory.getScheduler();
            if (!sched.isShutdown()) {
                sched.shutdown();
            }
        } catch (Exception e) {
            throw new RuntimeException(e);
        }
    }

    /**
     * @param jobName
     * @param jobGroupName
     * @Description: 立即运行任务，这里的立即运行，只会运行一次，方便测试时用。
     * @date 2018年5月17日 上午10:03:26
     */
    public static void triggerJob(String jobName) {
        JobKey jobKey = JobKey.jobKey(jobName, JOB_GROUP_NAME);
        try {
            Scheduler sched = gSchedulerFactory.getScheduler();
            sched.triggerJob(jobKey);
        } catch (SchedulerException e) {
            e.printStackTrace();
        }
    }

    /**
     * @param jobName
     * @param jobGroupName
     * @Description: 立即运行任务，这里的立即运行，只会运行一次，方便测试时用。
     * @date 2018年5月17日 上午10:03:26
     */
    public static void triggerJob(String jobName, String jobGroupName) {
        JobKey jobKey = JobKey.jobKey(jobName, jobGroupName);
        try {
            Scheduler sched = gSchedulerFactory.getScheduler();
            sched.triggerJob(jobKey);
        } catch (SchedulerException e) {
            e.printStackTrace();
        }
    }

    /**
     * @param jobName 触发器名
     * @Description: 获取任务状态
     * NONE: 不存在
     * NORMAL: 正常
     * PAUSED: 暂停
     * COMPLETE:完成
     * ERROR : 错误
     * BLOCKED : 阻塞
     * @date 2018年5月21日 下午2:13:45
     */
    public static String getTriggerState(String jobName) {
        TriggerKey triggerKey = TriggerKey.triggerKey(jobName, TRIGGER_GROUP_NAME);
        String name = null;
        try {
            Scheduler sched = gSchedulerFactory.getScheduler();
            Trigger.TriggerState triggerState = sched.getTriggerState(triggerKey);
            name = triggerState.name();
        } catch (SchedulerException e) {
            e.printStackTrace();
        }
        return name;
    }


    /**
     * @Description:
     * @date 2018年5月16日
     */
    public class MyJob implements Job {

        @Override
        public void execute(JobExecutionContext context) throws JobExecutionException {

            System.err.println("任务运行开始-------- start --------");
            try {
                String jobName = context.getJobDetail().getKey().getName();
                String jobGroup = context.getJobDetail().getKey().getGroup();
                String triggerName = context.getTrigger().getKey().getName();
                String triggerGroup = context.getTrigger().getKey().getGroup();

                SimpleDateFormat dateFormat = new SimpleDateFormat("yyyy年MM月dd日 HH时mm分ss秒");
                System.err.println("触发器Key:" + triggerName + ".." + triggerGroup + " 正在执行...");
                System.err.println("任务Key:" + jobName + ".." + jobGroup + " 正在执行，执行时间: "
                        + dateFormat.format(Calendar.getInstance().getTime()));

            } catch (Exception e) {
                System.err.println("捕获异常===" + e);
            }
            System.err.println("任务运行结束-------- end --------");
        }

    }

}