Quartz 调度，添加，修改，删除 任务,Job

import java.text.ParseException;import org.quartz.CronTrigger;import org.quartz.Job;import org.quartz.JobDetail;import org.quartz.Scheduler;import org.quartz.SchedulerException;import org.quartz.SchedulerFactory;import org.quartz.Trigger;import org.quartz.impl.StdSchedulerFactory;/** *//*** @Title:Quartz管理类* * @Description:* * @Copyright: * @author zz 2008-10-8 14:19:01* @version 1.00.000**/public class QuartzManager {   private static SchedulerFactory sf = new StdSchedulerFactory();   private static String JOB_GROUP_NAME = "group1";   private static String TRIGGER_GROUP_NAME = "trigger1";      /** *//**    * 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 job     任务    * @param time    时间设置，参考quartz说明文档    * @throws SchedulerException    * @throws ParseException    */   public static void addJob(String jobName,Job job,String time)                                throws SchedulerException, ParseException{       Scheduler sched = sf.getScheduler();       JobDetail jobDetail = new JobDetail(jobName, JOB_GROUP_NAME, job.getClass());//任务名，任务组，任务执行类       //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();   }      /** *//**    * 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 job     任务    * @param time    时间设置，参考quartz说明文档    * @throws SchedulerException    * @throws ParseException    */   public static void addJob(String jobName,String jobGroupName,                             String triggerName,String triggerGroupName,                             Job job,String time)                                throws SchedulerException, ParseException{       Scheduler sched = sf.getScheduler();       JobDetail jobDetail = new JobDetail(jobName, jobGroupName, job.getClass());//任务名，任务组，任务执行类       //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);       if(!sched.isShutdown())          sched.start();   }      /** *//**    * 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    * @throws SchedulerException    * @throws ParseException    */   public static void modifyJobTime(String jobName,String time)                                   throws SchedulerException, ParseException{       Scheduler sched = sf.getScheduler();       Trigger trigger = sched.getTrigger(jobName,TRIGGER_GROUP_NAME);       if(trigger != null){           CronTrigger ct = (CronTrigger)trigger;           ct.setCronExpression(time);           sched.resumeTrigger(jobName,TRIGGER_GROUP_NAME);       }   }      /** *//**    * 修改一个任务的触发时间    * @param triggerName    * @param triggerGroupName    * @param time    * @throws SchedulerException    * @throws ParseException    */   public static void modifyJobTime(String triggerName,String triggerGroupName,                                    String time)                                   throws SchedulerException, ParseException{       Scheduler sched = sf.getScheduler();       Trigger trigger = sched.getTrigger(triggerName,triggerGroupName);       if(trigger != null){           CronTrigger ct = (CronTrigger)trigger;           //修改时间           ct.setCronExpression(time);           //重启触发器           sched.resumeTrigger(triggerName,triggerGroupName);       }   }      /** *//**    * 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 = sf.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   }      /** *//**    * 移除一个任务    * @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 = sf.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   }}测试工作类import org.quartz.Job;import org.quartz.JobExecutionContext;import org.quartz.JobExecutionException;public class TestJob implements Job {    public void execute(JobExecutionContext arg0) throws JobExecutionException {        // TODO Auto-generated method stub        System.out.println("★★★★★★★★★★★");    }}测试类public class QuartzTest {    /** *//**     * @param args     */    public static void main(String[] args) {        // TODO Auto-generated method stub        TestJob job = new TestJob();        String job_name ="11";        try {            System.out.println("【系统启动】");            QuartzManager.addJob(job_name,job,"0/5 * * * * ?");                        Thread.sleep(10000);            System.out.println("【修改时间】");            QuartzManager.modifyJobTime(job_name,"0/10 * * * * ?");            Thread.sleep(20000);            System.out.println("【移除定时】");            QuartzManager.removeJob(job_name);            Thread.sleep(10000);                        System.out.println("\n【添加定时任务】");            QuartzManager.addJob(job_name,job,"0/5 * * * * ?");                    } catch (Exception e) {            e.printStackTrace();        }    }}