Quartz调用大全
Quartz调用大全
1.Quartz应用范围广泛，可单独执行也可在spring中嵌入执行。
类似的定时任务在linux下可以用crontab执行
2.实现代码：
QuartzTest :主要执行类
package com.taobao.terminator.allen.QuartzTest; import org.apache.commons.logging.Log; import org.apache.commons.logging.LogFactory; import org.quartz.CronTrigger; import org.quartz.JobDetail; import org.quartz.JobListener; import org.quartz.Scheduler; import org.quartz.SchedulerFactory; import org.quartz.impl.StdSchedulerFactory; public class QuartzTest { private final static Log logger = LogFactory.getLog(QuartzTest.class); public static void main(String[] args) { System.out.println("this is test for Quartz"); //初始化scheduler工厂类 SchedulerFactory factory = new StdSchedulerFactory(); try { //DirectSchedulerFactory生成一个实例，可create一个带名字的shceduler Scheduler shceduler = factory.getScheduler(); //Quartz监听器，分为全局和局部的。局部的需要在特定的jobDetail中重回一次，全局不需要 JobListener jobListener = new QuartzListener("quartz - test"); shceduler.addJobListener(jobListener); //Shceduler的Context类似于servlet的context，功能相似.Context会传递给监听器 shceduler.getContext().put("coreName", "coreName"); //同样可以保存context的key-value ,jobDetail.getJobDataMap() JobDetail jobDetail = new JobDetail("Full-Detail", "Full-Detail-Group", QuartzJob.class); jobDetail.addJobListener("quartz - test"); jobDetail.getJobDataMap().put("jobDetail-data", "jobDetail"); //生成触发器 CronTrigger trigger = new CronTrigger("Full-Trigger" , "Full-Trigger-Group"); trigger.setCronExpression("0/30 * * * * ?"); //添加job shceduler.scheduleJob(jobDetail, trigger); //开始执行shceduler shceduler.start(); while(true) { Thread.sleep(1000 * 10); System.out.println("触发定时任务"); shceduler.triggerJob("Full-Detail", "Full-Detail-Group"); Thread.sleep(1000 * 40); //终止正在运行的job shceduler.interrupt("Full-Detail", "Full-Detail-Group"); System.out.println("the schedule is over"); //关闭定时器 shceduler.shutdown(); break; } } catch (Exception e) { logger.error("生成调试器失败" , e); } } }
QuartzListener :监听器，可设置在jobDetail ,trigger, scheduler三个层次
主要对job执行之前及之后的进行操作，context可负责通信及异常，类似于servlet的context功能
package com.taobao.terminator.allen.QuartzTest; import org.quartz.JobExecutionContext; import org.quartz.JobExecutionException; import org.quartz.JobListener; public class QuartzListener implements JobListener{ private String listenerName = "quartz-listener"; public QuartzListener(String listenerName) { this.listenerName = listenerName; } public String getName() { return this.listenerName; } public void jobToBeExecuted(JobExecutionContext context) { System.out.println("the job listener is start"); } public void jobExecutionVetoed(JobExecutionContext context) { } public void jobWasExecuted(JobExecutionContext context, JobExecutionException jobException) { System.out.println("the job listener is end"); } }
QuartzJob:注意中断方法的实现，可用于停止当前job，也可用shcedule.deleteJob(name,groupName)进行直接删除
import org.quartz.InterruptableJob; import org.quartz.JobExecutionContext; import org.quartz.JobExecutionException; import org.quartz.UnableToInterruptJobException; public class QuartzJob implements InterruptableJob{ private boolean stop = false ; public void execute(JobExecutionContext context) throws JobExecutionException { if(!this.stop) { System.out.println("this is ok"); } } public void interrupt() throws UnableToInterruptJobException { this.stop = true ; System.out.println("it is over"); } public boolean isStop() { return stop; } }