java类中使用quartz，设置自动任务Demo

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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&&param.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;    }        }

调用代码：

        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);

job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);            }}

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