java 动态增加定时任务示例

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 {  @Override  public 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();    }  }}