002-使用java类调用quartz
一、工具类
package com.tech.jin.jobScheduler; import java.text.ParseException; import java.util.ArrayList; import java.util.HashMap; import java.util.List; import java.util.Map; import java.util.Properties; import org.apache.log4j.Logger; import org.quartz.CronTrigger; import org.quartz.Job; import org.quartz.JobDataMap; import org.quartz.JobDetail; import org.quartz.Scheduler; import org.quartz.SchedulerException; import org.quartz.SchedulerFactory; import org.quartz.impl.StdSchedulerFactory; public class JobUtil { private static Logger logger = Logger.getLogger(JobUtil.class); private static StdSchedulerFactory schedulerFactory = null; private JobUtil(){} /** * 调度器factory * @return */ private static synchronized SchedulerFactory getSchedulerFactory(){ if(schedulerFactory==null){ schedulerFactory = new StdSchedulerFactory(); Properties p = new Properties(); p.put("org.quartz.threadPool.class", "org.quartz.simpl.SimpleThreadPool"); p.put("org.quartz.threadPool.threadCount", "10"); try { schedulerFactory.initialize(p); } catch (SchedulerException e) { logger.info(e); } } return schedulerFactory; } /** * 添加任务 * @param job 要调用的job类 * @param jobName job名称 * @param cronExpression 任务触发时间表达式 * @param param 需要用到的参数，可在job类中的context获得 */ public static void addJob(Job job,String jobName,String cronExpression,Map param){ Scheduler scheduler = null; try { removeJob(jobName, job.getClass().getCanonicalName()+"Group");//删除原任务 scheduler = getSchedulerFactory().getScheduler(); JobDetail jobDetail = getJobDetail(job, jobName,param); String jobGroup = jobDetail.getGroup(); CronTrigger cronTrigger = getCronTrigger(job, jobName,jobGroup, cronExpression); scheduler.scheduleJob(jobDetail, cronTrigger); logger.info("添加任务："+jobName); startScheduler(); } catch (SchedulerException e) { logger.error(e); } } /** * 对外停止任务调度器方法 */ public static void stopJob(){ shutdownScheduler(); } /** * 启动调度器 */ protected static void startScheduler(){ Scheduler scheduler = null; try { scheduler = getSchedulerFactory().getScheduler(); //如果调度器未启动，启动调度器 if(scheduler!=null&&!scheduler.isStarted()){ scheduler.start(); } } catch (SchedulerException e) { logger.error(e); } } /** * 关闭调度器，关闭后任务也都清除 */ protected static void shutdownScheduler(){ Scheduler scheduler = null; try { scheduler = getSchedulerFactory().getScheduler(); //如果调度器未关闭，关闭调度器 if(scheduler!=null&&!scheduler.isShutdown()){ scheduler.shutdown(); } } catch (SchedulerException e) { logger.error(e); } } /** * 获取JobDetail * @param job * @param param * @return */ protected static JobDetail getJobDetail(Job job,String jobName,Map param){ Class jobClazz = job.getClass(); if(jobName==null||"".equals(jobName)){ jobName = jobClazz.getCanonicalName(); } String jobGroup = jobClazz.getCanonicalName()+"Group"; JobDetail jobDetail = new JobDetail(); jobDetail.setDurability(true); jobDetail.setRequestsRecovery(true); jobDetail.setName(jobName); jobDetail.setGroup(jobGroup); jobDetail.setJobClass(jobClazz); if(param!=null&¶m.size()>0){ JobDataMap jobDataMap = new JobDataMap(param);//存放参数 jobDetail.setJobDataMap(jobDataMap); logger.info("任务 "+jobName+" jobDetail存放的参数："+param); } return jobDetail; } /** * 获取触发器 * @param job * @param jobName * @param cronExpression * @return */ protected static CronTrigger getCronTrigger(Job job,String jobName,String jobGroup,String cronExpression){ Class jobClazz = job.getClass(); String triggerName = jobClazz.getCanonicalName()+"Trigger"; String triggerGroup = jobClazz.getCanonicalName()+"TriggerGroup"; CronTrigger cronTrigger = new CronTrigger(); cronTrigger.setName(triggerName); cronTrigger.setGroup(triggerGroup); cronTrigger.setJobName(jobName); cronTrigger.setJobGroup(jobGroup); try { cronTrigger.setCronExpression(cronExpression);//触发任务的时间表达式 } catch (ParseException e) { logger.error(e); } logger.info("任务 "+jobName+" 触发时间："+cronExpression); return cronTrigger; } /** * 删除job * @param jobName * @param jobGroup */ public static void removeJob(String jobName,String jobGroup){ logger.info("删除任务：jobName："+jobName +" jobGroup："+jobGroup); Scheduler scheduler = null; String[] jobNames = null; try { scheduler = getSchedulerFactory().getScheduler(); jobNames = scheduler.getJobNames(jobGroup); if(jobNames==null||jobNames.length==0){ return; } for(String name:jobNames){ if(name.equals(jobName)){ scheduler.pauseTrigger(jobName, jobGroup);//停止触发器 scheduler.pauseJob(jobName, jobGroup);//暂停job scheduler.unscheduleJob(jobName, jobGroup);//取消预订的job scheduler.deleteJob(jobName, jobGroup);//删除job } } } catch (SchedulerException e) { logger.error(e); } } /** * 获取任务列表 * @return */ public static Map<String, List<String>> getJobList(){ Scheduler scheduler = null; Map<String, List<String>> map = null; try { scheduler = getSchedulerFactory().getScheduler(); String[] jobGroupNames = scheduler.getJobGroupNames(); if(jobGroupNames==null||jobGroupNames.length==0){ return null; } map = new HashMap<String, List<String>>(); for(String jobGroup :jobGroupNames){ String[] jobNames = scheduler.getJobNames(jobGroup); if(jobNames==null||jobNames.length==0){ continue; } List<String> jobNameList = new ArrayList<String>(); for(String jobName : jobNames){ jobNameList.add(jobName); } map.put(jobGroup, jobNameList); } } catch (SchedulerException e) { logger.error(e); } logger.info("获取job列表："+map); return map; } }
二、业务类
package com.tech.jin.job; import org.quartz.Job; import org.quartz.JobDataMap; import org.quartz.JobExecutionContext; import org.quartz.JobExecutionException; public class TestJob implements Job{ @Override public void execute(JobExecutionContext jobExecutionContext) throws JobExecutionException { //可以context中获取到之前存入jobDataMap中的参数 JobDataMap jobDataMap = jobExecutionContext.getJobDetail().getJobDataMap(); String value = (String)jobDataMap.get("key"); System.out.println(value); } }
三、调用
Job job = new TestJob(); Map<String, String> map = new HashMap<String, String>(); map.put("key", "hello world"); JobUtil.addJob(job, job.getClass().getName(), "0/10 * * * * ?", map);
