import org.apache.tools.ant.util.DateUtils;
import org.quartz.CronTrigger;
import org.quartz.JobDetail;
import org.quartz.Scheduler;
import org.quartz.SchedulerFactory;
import org.quartz.impl.StdSchedulerFactory;import java.util.Calendar;
import java.util.Date;/*** @Description: 定时任务管理类* Created by zhangxb on 2017/2/10.*/
public class QuartzManager {private static SchedulerFactory gSchedulerFactory = new StdSchedulerFactory();private static String JOB_GROUP_NAME = "EXTJWEB_JOBGROUP_NAME";private static String TRIGGER_GROUP_NAME = "EXTJWEB_TRIGGERGROUP_NAME";/*** @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 time*            时间设置，参考quartz说明文档** @Title: QuartzManager.java*/@SuppressWarnings("unchecked")public static void addJob(String jobName, Class cls, String time,Object params) {try {Scheduler sched = gSchedulerFactory.getScheduler();JobDetail jobDetail = new JobDetail(jobName, JOB_GROUP_NAME, cls);// 任务名，任务组，任务执行类jobDetail.getJobDataMap().put("params", params);// 触发器CronTrigger trigger = new CronTrigger(jobName, TRIGGER_GROUP_NAME);// 触发器名,触发器组trigger.setCronExpression(time);// 触发器时间设定
            sched.scheduleJob(jobDetail, trigger);// 启动if (!sched.isShutdown()) {sched.start();}} catch (Exception e) {throw new RuntimeException(e);}}/*** @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 time*            时间设置，参考quartz说明文档**/@SuppressWarnings("unchecked")public static void addJob(String jobName, String jobGroupName,String triggerName, String triggerGroupName, Class jobClass,String time,Object params) {try {Scheduler sched = gSchedulerFactory.getScheduler();JobDetail jobDetail = new JobDetail(jobName, jobGroupName, jobClass);// 任务名，任务组，任务执行类jobDetail.getJobDataMap().put("params",params);// 触发器CronTrigger trigger = new CronTrigger(triggerName, triggerGroupName);// 触发器名,触发器组trigger.setCronExpression(time);// 触发器时间设定
            sched.scheduleJob(jobDetail, trigger);} catch (Exception e) {throw new RuntimeException(e);}}/*** @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 time**/@SuppressWarnings("unchecked")public static void modifyJobTime(String jobName, String time) {try {Scheduler sched = gSchedulerFactory.getScheduler();CronTrigger trigger = (CronTrigger) sched.getTrigger(jobName,TRIGGER_GROUP_NAME);if (trigger == null) {return;}String oldTime = trigger.getCronExpression();if (!oldTime.equalsIgnoreCase(time)) {JobDetail jobDetail = sched.getJobDetail(jobName,JOB_GROUP_NAME);Class objJobClass = jobDetail.getJobClass();removeJob(jobName);addJob(jobName, objJobClass, time ,jobDetail.getJobDataMap());}} catch (Exception e) {throw new RuntimeException(e);}}/*** @Description: 修改一个任务的触发时间**/public static void modifyJobTime(String triggerName,String triggerGroupName, String time) {try {Scheduler sched = gSchedulerFactory.getScheduler();CronTrigger trigger = (CronTrigger) sched.getTrigger(triggerName,triggerGroupName);if (trigger == null) {return;}String oldTime = trigger.getCronExpression();if (!oldTime.equalsIgnoreCase(time)) {CronTrigger ct = (CronTrigger) trigger;// 修改时间
                ct.setCronExpression(time);// 重启触发器
                sched.resumeTrigger(triggerName, triggerGroupName);}} catch (Exception e) {throw new RuntimeException(e);}}/*** @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**/public static void removeJob(String jobName) {try {Scheduler sched = gSchedulerFactory.getScheduler();sched.pauseTrigger(jobName, TRIGGER_GROUP_NAME);// 停止触发器sched.unscheduleJob(jobName, TRIGGER_GROUP_NAME);// 移除触发器sched.deleteJob(jobName, JOB_GROUP_NAME);// 删除任务} catch (Exception e) {throw new RuntimeException(e);}}/*** @Description: 移除一个任务**/public static void removeJob(String jobName, String jobGroupName,String triggerName, String triggerGroupName) {try {Scheduler sched = gSchedulerFactory.getScheduler();sched.pauseTrigger(triggerName, triggerGroupName);// 停止触发器sched.unscheduleJob(triggerName, triggerGroupName);// 移除触发器sched.deleteJob(jobName, jobGroupName);// 删除任务} catch (Exception e) {throw new RuntimeException(e);}}/*** @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);}}public static String formatTime(Date date){//0/1 * * * * ?String time = DateUtils.format( date, "s m h d * ?");System.out.println(time);return time;}
}

import org.quartz.Job;
import org.quartz.JobExecutionContext;
import org.quartz.JobExecutionException;import java.text.SimpleDateFormat;
import java.util.Calendar;
import java.util.Date;/*** @Description: 任务执行类* Created by zhangxb on 2017/2/10.*/
public class QuartzJob implements Job {@Overridepublic void execute(JobExecutionContext context) throws JobExecutionException {Object params =   context.getJobDetail().getJobDataMap().get("params");System.out.println(params);System.out.println(new SimpleDateFormat("yyyy-MM-dd HH:mm:ss").format(new Date())+ "★★★★★★★★★★★");System.out.println("【移除定时】开始...");QuartzManager.removeJob((String)params);System.out.println("【移除定时】成功");}public static void main(String[] args) {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)...");Calendar cal = Calendar.getInstance();cal.add( Calendar.SECOND,10);QuartzManager.addJob(job_name, QuartzJob.class, QuartzManager.formatTime(cal.getTime()),job_name);Thread.sleep(11);cal.setTime( new Date());cal.add( Calendar.SECOND,10);QuartzManager.addJob(job_name+1, QuartzJob.class, QuartzManager.formatTime(cal.getTime()),job_name+1);Thread.sleep(11);
//            System.out.println("【修改时间】开始(每2秒输出一次)...");
//            QuartzManager.modifyJobTime(job_name, "10/2 * * * * ?");
//            Thread.sleep(6000);
//            System.out.println("【移除定时】开始...");
//            QuartzManager.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)...");
//            QuartzManager.addJob(job_name, QuartzJob.class, "*/10 * * * * ?");
//            Thread.sleep(60000);
//            System.out.println("【移除定时】开始...");
//            QuartzManager.removeJob(job_name);
//            System.out.println("【移除定时】成功");} catch (Exception e) {e.printStackTrace();}}
}