專案ITP(七) javaWeb 整合 Quartz 實現動態排程 而且 持久化 專案ITP(七) javaWeb 整合 Quartz 實現動態排程 而且 持久化
專案ITP(七) javaWeb 整合 Quartz 實現動態排程 而且 持久化
原創地址:http://www.cnblogs.com/Alandre/(泥沙磚瓦漿木匠),須要轉載的,保留下!
弟子規 聖人訓 首孝弟 次謹信 泛愛眾 而親仁 有餘力 則學文
Written In The Font
須要:WEB-INF/lib/quartz-2.2.1.jar
基本步驟:
- web.xml註冊監聽器ScheduleStartListener
- 監聽器類sedion.jeffli.wmuitp.listener.ScheduleStartListener實現
- 測試案例第一步: Job 介面實現類JobTest
- 測試案例第二步:QuartzTest
web.xml註冊監聽器ScheduleStartListener
註冊quartz監聽器,監聽專案是否啟動或者重新啟動.保證專案啟動或重新啟動時,全部任務會被又一次安排到任務排程中.
web.xml增加一個Listener:
<!-- quartz監聽器 --> <listener> <listener-class>sedion.jeffli.wmuitp.listener.ScheduleStartListener</listener-class> </listener>
監聽器類sedion.jeffli.wmuitp.listener.ScheduleStartListener實現
監聽器類主要是實現recovery各個任務,又一次恢復在triggerGroups組中全部的觸發器,按新的trigger又一次設定job執行.順便說下,這個異常自己定義(不須要刪除就可以): sedion.jeffli.wmuitp.exception.QuartzException;
package sedion.jeffli.wmuitp.listener;import java.util.List; import javax.servlet.ServletContextEvent; import javax.servlet.ServletContextListener; import org.quartz.Scheduler; import org.quartz.SchedulerFactory; import org.quartz.Trigger; import org.quartz.TriggerKey; import org.quartz.impl.StdSchedulerFactory; import sedion.jeffli.wmuitp.exception.QuartzException; public class ScheduleStartListener implements ServletContextListener { public void contextDestroyed(ServletContextEvent sce) { } public void contextInitialized(ServletContextEvent sce) { try { recovery(); } catch (Exception e) { throw new QuartzException(" ScheduleStartListener contextInitialized ERROR!!",e); } } public void recovery() { Scheduler scheduler = null; try { SchedulerFactory schedulerFactory = new StdSchedulerFactory(); scheduler = schedulerFactory.getScheduler();//能夠通過SchedulerFactory建立一個Scheduler例項 List<String> triggerGroups = scheduler.getTriggerGroupNames();//獲取排程器中全部的觸發器組 System.out.println("排程器中全部的觸發器組 size():"+triggerGroups.size()); if(triggerGroups != null && triggerGroups.size() != 0)//又一次恢復在triggerGroups組中全部的觸發器 { for (int i = 0; i < triggerGroups.size(); i++) { TriggerKey triggerKey = TriggerKey.triggerKey(triggerGroups.get(i), triggerGroups.get(i)); System.out.println("triggerKey:"+triggerKey); Trigger tg = scheduler.getTrigger(triggerKey);//獲取trigger System.out.println(triggerKey+" -> 執行時間 :"+tg.getNextFireTime()); scheduler.rescheduleJob(triggerKey, tg);//按新的trigger又一次設定job執行 } } scheduler.start(); } catch (Exception e) { throw new QuartzException("ScheduleStartListener recovery() Error!", e); } } }
測試案例第一步: Job 介面實現類JobTest
顧名思義,用於自己定義任務,方法的實現.你能夠在當中寫入隨意你想要在那個點上乾的事情(操作資料庫,前臺顯示等).在以下那處地方寫入你想要寫的:System.out.println("添入須要增加任務的詳細操作"); .順便說下,這個異常自己定義(不須要刪除就可以):
package test.quartz; import org.quartz.Job; import org.quartz.JobDataMap; import org.quartz.JobExecutionContext; import org.quartz.JobExecutionException; import org.quartz.JobKey; import org.quartz.Scheduler; import org.quartz.SchedulerException; import org.quartz.SchedulerFactory; import org.quartz.TriggerKey; import org.quartz.impl.StdSchedulerFactory; import sedion.jeffli.wmuitp.exception.QuartzException; public class JobTest implements Job{ public JobTest() {} public void execute(JobExecutionContext context)throws JobExecutionException { JobDataMap data = context.getJobDetail().getJobDataMap(); System.out.println("data.testId : "+data.getInt("testId")); //不須要可刪除 try { System.out.println("添入須要增加任務的詳細操作"); } catch (Exception e) { throw new QuartzException("JobTest execute() ERROR !!", e); } } public static void removeJob(JobKey jobKey, TriggerKey tiKey)throws SchedulerException { SchedulerFactory sf = new StdSchedulerFactory(); Scheduler sched = sf.getScheduler(); sched.pauseTrigger(tiKey); //停止觸發器 sched.unscheduleJob(tiKey); //移除觸發器 sched.deleteJob(jobKey); //刪除任務 } }
測試案例第二步:QuartzTest
顧名思義,用於實現,檢驗.能夠通過SchedulerFactory建立一個Scheduler例項,把觸發器在叢集節點例項命名的組僅僅是為了區分(伐木)從什麼地方定問排程又一次執行此作業,假設它是正在進行時排程下去.
package test.quartz; import static org.quartz.JobBuilder.newJob; import static org.quartz.TriggerBuilder.newTrigger; import java.util.Date; import org.quartz.JobDetail; import org.quartz.Scheduler; import org.quartz.SchedulerFactory; import org.quartz.SimpleTrigger; import org.quartz.impl.StdSchedulerFactory; public class QuartzTest { public void run(String date, int id)throws Exception { SchedulerFactory schedulerFactory = new StdSchedulerFactory(); Scheduler scheduler = schedulerFactory.getScheduler();//能夠通過SchedulerFactory建立一個Scheduler例項 //設定工作詳情 JobDetail job = newJob(JobTest.class) .withIdentity("job_"+id, "test"+id) // (String name, String group)把觸發器在叢集節點例項命名的組僅僅是為了區分(伐木)從什麼地方定問排程又一次執行此作業,假設它是正在進行時排程下去... .requestRecovery() .build(); job.getJobDataMap().put("testId", id); //設定儲存引數(不須要可刪除) Date startDate = FormatDate.stringToDateAll(date);//Date轉String //設定觸發器 SimpleTrigger trigger = (SimpleTrigger) newTrigger() .withIdentity("overdue"+id, "overdue"+id)//withIdentity("trigger", "group") .startAt(startDate) .build(); scheduler.scheduleJob(job, trigger); scheduler.start(); System.out.println("------- Start Scheduler ----------------"); } public static void main(String[] args) throws Exception { QuartzTest quartzOverdue = new QuartzTest(); quartzOverdue.run("2014-07-02 00:30:00",666);//666,隨便的吉祥數字 } }
然後我們執行:
public static void main(String[] args) throws Exception { QuartzTest quartzOverdue = new QuartzTest(); quartzOverdue.run("2014-07-02 00:30:00",666);//666,隨便的吉祥數字 }
看控制檯:
先輸出
------- Start Scheduler ----------------
然後時間到了
添入須要增加任務的詳細操作
原創地址:http://www.cnblogs.com/Alandre/(泥沙磚瓦漿木匠),須要轉載的,保留下!
弟子規 聖人訓 首孝弟 次謹信 泛愛眾 而親仁 有餘力 則學文
Written In The Font
須要:WEB-INF/lib/quartz-2.2.1.jar
基本步驟:
- web.xml註冊監聽器ScheduleStartListener
- 監聽器類sedion.jeffli.wmuitp.listener.ScheduleStartListener實現
- 測試案例第一步: Job 介面實現類JobTest
- 測試案例第二步:QuartzTest
web.xml註冊監聽器ScheduleStartListener
註冊quartz監聽器,監聽專案是否啟動或者重新啟動.保證專案啟動或重新啟動時,全部任務會被又一次安排到任務排程中.
web.xml增加一個Listener:
<!-- quartz監聽器 --> <listener> <listener-class>sedion.jeffli.wmuitp.listener.ScheduleStartListener</listener-class> </listener>
監聽器類sedion.jeffli.wmuitp.listener.ScheduleStartListener實現
監聽器類主要是實現recovery各個任務,又一次恢復在triggerGroups組中全部的觸發器,按新的trigger又一次設定job執行.順便說下,這個異常自己定義(不須要刪除就可以): sedion.jeffli.wmuitp.exception.QuartzException;
package sedion.jeffli.wmuitp.listener; import java.util.List; import javax.servlet.ServletContextEvent; import javax.servlet.ServletContextListener; import org.quartz.Scheduler; import org.quartz.SchedulerFactory; import org.quartz.Trigger; import org.quartz.TriggerKey; import org.quartz.impl.StdSchedulerFactory; import sedion.jeffli.wmuitp.exception.QuartzException; public class ScheduleStartListener implements ServletContextListener { public void contextDestroyed(ServletContextEvent sce) { } public void contextInitialized(ServletContextEvent sce) { try { recovery(); } catch (Exception e) { throw new QuartzException(" ScheduleStartListener contextInitialized ERROR!!",e); } } public void recovery() { Scheduler scheduler = null; try { SchedulerFactory schedulerFactory = new StdSchedulerFactory(); scheduler = schedulerFactory.getScheduler();//能夠通過SchedulerFactory建立一個Scheduler例項 List<String> triggerGroups = scheduler.getTriggerGroupNames();//獲取排程器中全部的觸發器組 System.out.println("排程器中全部的觸發器組 size():"+triggerGroups.size()); if(triggerGroups != null && triggerGroups.size() != 0)//又一次恢復在triggerGroups組中全部的觸發器 { for (int i = 0; i < triggerGroups.size(); i++) { TriggerKey triggerKey = TriggerKey.triggerKey(triggerGroups.get(i), triggerGroups.get(i)); System.out.println("triggerKey:"+triggerKey); Trigger tg = scheduler.getTrigger(triggerKey);//獲取trigger System.out.println(triggerKey+" -> 執行時間 :"+tg.getNextFireTime()); scheduler.rescheduleJob(triggerKey, tg);//按新的trigger又一次設定job執行 } } scheduler.start(); } catch (Exception e) { throw new QuartzException("ScheduleStartListener recovery() Error!", e); } } }
測試案例第一步: Job 介面實現類JobTest
顧名思義,用於自己定義任務,方法的實現.你能夠在當中寫入隨意你想要在那個點上乾的事情(操作資料庫,前臺顯示等).在以下那處地方寫入你想要寫的:System.out.println("添入須要增加任務的詳細操作"); .順便說下,這個異常自己定義(不須要刪除就可以):
package test.quartz; import org.quartz.Job; import org.quartz.JobDataMap; import org.quartz.JobExecutionContext; import org.quartz.JobExecutionException; import org.quartz.JobKey; import org.quartz.Scheduler; import org.quartz.SchedulerException; import org.quartz.SchedulerFactory; import org.quartz.TriggerKey; import org.quartz.impl.StdSchedulerFactory; import sedion.jeffli.wmuitp.exception.QuartzException; public class JobTest implements Job{ public JobTest() {} public void execute(JobExecutionContext context)throws JobExecutionException { JobDataMap data = context.getJobDetail().getJobDataMap(); System.out.println("data.testId : "+data.getInt("testId")); //不須要可刪除 try { System.out.println("添入須要增加任務的詳細操作"); } catch (Exception e) { throw new QuartzException("JobTest execute() ERROR !!", e); } } public static void removeJob(JobKey jobKey, TriggerKey tiKey)throws SchedulerException { SchedulerFactory sf = new StdSchedulerFactory(); Scheduler sched = sf.getScheduler(); sched.pauseTrigger(tiKey); //停止觸發器 sched.unscheduleJob(tiKey); //移除觸發器 sched.deleteJob(jobKey); //刪除任務 } }
測試案例第二步:QuartzTest
顧名思義,用於實現,檢驗.能夠通過SchedulerFactory建立一個Scheduler例項,把觸發器在叢集節點例項命名的組僅僅是為了區分(伐木)從什麼地方定問排程又一次執行此作業,假設它是正在進行時排程下去.
package test.quartz; import static org.quartz.JobBuilder.newJob; import static org.quartz.TriggerBuilder.newTrigger; import java.util.Date; import org.quartz.JobDetail; import org.quartz.Scheduler; import org.quartz.SchedulerFactory; import org.quartz.SimpleTrigger; import org.quartz.impl.StdSchedulerFactory; public class QuartzTest { public void run(String date, int id)throws Exception { SchedulerFactory schedulerFactory = new StdSchedulerFactory(); Scheduler scheduler = schedulerFactory.getScheduler();//能夠通過SchedulerFactory建立一個Scheduler例項 //設定工作詳情 JobDetail job = newJob(JobTest.class) .withIdentity("job_"+id, "test"+id) // (String name, String group)把觸發器在叢集節點例項命名的組僅僅是為了區分(伐木)從什麼地方定問排程又一次執行此作業,假設它是正在進行時排程下去... .requestRecovery() .build(); job.getJobDataMap().put("testId", id); //設定儲存引數(不須要可刪除) Date startDate = FormatDate.stringToDateAll(date);//Date轉String //設定觸發器 SimpleTrigger trigger = (SimpleTrigger) newTrigger() .withIdentity("overdue"+id, "overdue"+id)//withIdentity("trigger", "group") .startAt(startDate) .build(); scheduler.scheduleJob(job, trigger); scheduler.start(); System.out.println("------- Start Scheduler ----------------"); } public static void main(String[] args) throws Exception { QuartzTest quartzOverdue = new QuartzTest(); quartzOverdue.run("2014-07-02 00:30:00",666);//666,隨便的吉祥數字 } }
然後我們執行:
public static void main(String[] args) throws Exception { QuartzTest quartzOverdue = new QuartzTest(); quartzOverdue.run("2014-07-02 00:30:00",666);//666,隨便的吉祥數字 }
看控制檯:
先輸出
------- Start Scheduler ----------------
然後時間到了
添入須要增加任務的詳細操作