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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: 定時任務管理類 * 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: 添加一個定時任務，使用默認的任務組名，觸發器名，觸發器組名 * * @param jobName * 任務名 * @param cls * 任務 * @param time * 時間設置，參考quartz說明文檔 * * @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);// 任務名，任務組，任務執行類 jobDetail.getJobDataMap().put("params", params); // 觸發器 CronTrigger trigger = new CronTrigger(jobName, TRIGGER_GROUP_NAME);// 觸發器名,觸發器組 trigger.setCronExpression(time);// 觸發器時間設定 sched.scheduleJob(jobDetail, trigger); // 啟動 if (!sched.isShutdown()) { sched.start(); } } catch (Exception e) { throw new RuntimeException(e); } } /** * @Description: 添加一個定時任務 * * @param jobName * 任務名 * @param jobGroupName * 任務組名 * @param triggerName * 觸發器名 * @param triggerGroupName * 觸發器組名 * @param jobClass * 任務 * @param time * 時間設置，參考quartz說明文檔 * */ @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);// 任務名，任務組，任務執行類 jobDetail.getJobDataMap().put("params",params); // 觸發器 CronTrigger trigger = new CronTrigger(triggerName, triggerGroupName);// 觸發器名,觸發器組 trigger.setCronExpression(time);// 觸發器時間設定 sched.scheduleJob(jobDetail, trigger); } catch (Exception e) { throw new RuntimeException(e); } } /** * @Description: 修改一個任務的觸發時間(使用默認的任務組名，觸發器名，觸發器組名) * * @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: 修改一個任務的觸發時間 * */ 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; // 修改時間 ct.setCronExpression(time); // 重啟觸發器 sched.resumeTrigger(triggerName, triggerGroupName); } } catch (Exception e) { throw new RuntimeException(e); } } /** * @Description: 移除一個任務(使用默認的任務組名，觸發器名，觸發器組名) * * @param jobName * */ public static void removeJob(String jobName) { try { Scheduler sched = gSchedulerFactory.getScheduler(); sched.pauseTrigger(jobName, TRIGGER_GROUP_NAME);// 停止觸發器 sched.unscheduleJob(jobName, TRIGGER_GROUP_NAME);// 移除觸發器 sched.deleteJob(jobName, JOB_GROUP_NAME);// 刪除任務 } catch (Exception e) { throw new RuntimeException(e); } } /** * @Description: 移除一個任務 * */ public static void removeJob(String jobName, String jobGroupName, String triggerName, String triggerGroupName) { try { Scheduler sched = gSchedulerFactory.getScheduler(); sched.pauseTrigger(triggerName, triggerGroupName);// 停止觸發器 sched.unscheduleJob(triggerName, triggerGroupName);// 移除觸發器 sched.deleteJob(jobName, jobGroupName);// 刪除任務 } catch (Exception e) { throw new RuntimeException(e); } } /** * @Description:啟動所有定時任務 */ public static void startJobs() { try { Scheduler sched = gSchedulerFactory.getScheduler(); sched.start(); } catch (Exception e) { throw new RuntimeException(e); } } /** * @Description:關閉所有定時任務 * */ 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; }} |
測試類
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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: 任務執行類 * 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("【移除定時】開始..."); QuartzManager.removeJob((String)params); System.out.println("【移除定時】成功"); } public static void main(String[] args) { try { String job_name = "動態任務調度"; System.out.println("【系統啟動】開始(每1秒輸出一次)..."); 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("【修改時間】開始(每2秒輸出一次)...");// QuartzManager.modifyJobTime(job_name, "10/2 * * * * ?");// Thread.sleep(6000);// System.out.println("【移除定時】開始...");// QuartzManager.removeJob(job_name);// System.out.println("【移除定時】成功");//// System.out.println("【再次添加定時任務】開始(每10秒輸出一次)...");// QuartzManager.addJob(job_name, QuartzJob.class, "*/10 * * * * ?");// Thread.sleep(60000);// System.out.println("【移除定時】開始...");// QuartzManager.removeJob(job_name);// System.out.println("【移除定時】成功"); } catch (Exception e) { e.printStackTrace(); } }} |
不過最后發現，還是沒法做動態延遲。后面用延時mq實現的。
以上就是本文的全部內容，希望對大家的學習有所幫助，也希望大家多多支持服務器之家。
原文鏈接：http://www.cnblogs.com/foreverzxb/p/6491190.html
