3个答案 按时间排序 按投票排序

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2015年4月22日 18:00

chenhongbo860720
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首先说句，spring和quartz没有太大关系 spring可以说只是一个更方便的工具

下面给你贴段代码，如果你读过quartz的文档就会明白quartz动态是咋实现的。

@Service
public class QuartzServiceImpl extends
		BaseServiceImpl<JobDetails, String, QuartzTaskVO> implements
		QuartzService {

	private JobDetailsJpaDao jobDetailsJpaDao;

	public JobDetailsJpaDao getJobDetailsJpaDao() {
		return jobDetailsJpaDao;
	}

	@Autowired
	public QuartzServiceImpl(JobDetailsJpaDao jobDetailsJpaDao,
			BaseJdbcDao baseJdbcDao) {
		super((BaseJpaRepository<JobDetails, String>) jobDetailsJpaDao,
				baseJdbcDao);
		this.jobDetailsJpaDao = jobDetailsJpaDao;
	}

	@Autowired
	private Scheduler scheduler;

	@ServiceDesc("查询当前活动的任务列表")
	@Override
	public Map<String, Object> queryActiveTaskMap(JobDetailsQueryParam param) {
		SQLQueryUtil util = new SQLQueryUtil();
		util.addTable("QRTZ_TRIGGERS");
		util.addColumn("SCHED_NAME", "schedule_name");
		util.addColumn("JOB_NAME", "job_name");
		util.addColumn("JOB_GROUP", "job_group");
		util.addColumn("TRIGGER_NAME", "trigger_name");
		util.addColumn("TRIGGER_GROUP", "trigger_group");
		util.addColumn("PREV_FIRE_TIME", "prev_fire_time");
		util.addColumn("NEXT_FIRE_TIME", "next_fire_time");
		util.addColumn("START_TIME", "start_time");
		util.addColumn("END_TIME", "end_time");
		util.addColumn("TRIGGER_STATE", "trigger_state");

		return super.queryDataMapNotExtend(util, QuartzTaskVO.class, param);
	}

	@Override
	@ServiceDesc("启动任务")
	public void startTask(String jobId, String triggerId) throws AppException {
		TaskId id = new TaskId(jobId, triggerId);
		try {
			scheduler.scheduleJob(id.getJobDetails().getJobDetail(), id
					.getTriggers().getTrigger());
		} catch (SchedulerException e) {
			throw new AppException(ResultCode.Failure, e.getMessage());
		} catch (ClassNotFoundException e) {
			throw new AppException(ResultCode.Failure, e.getMessage());
		}
	}

	@Override
	@ServiceDesc("暂停任务")
	public void pauseTask(String... ids) throws AppException {
		try {
			for (String idStr : ids) {
				scheduler.pauseJob(new TaskId(idStr).getJobKey());
			}
		} catch (SchedulerException e) {
			throw new AppException(ResultCode.Failure, e.getMessage());
		}
	}

	@Override
	@ServiceDesc("恢复任务")
	public void resumeTask(String... ids) throws AppException {
		try {
			for (String idStr : ids) {
				scheduler.resumeJob(new TaskId(idStr).getJobKey());
			}
		} catch (SchedulerException e) {
			throw new AppException(ResultCode.Failure, e.getMessage());
		}
	}

	@Override
	@ServiceDesc("删除任务")
	public void deleteTask(String... ids) throws AppException {
		try {
			for (String idStr : ids) {
				scheduler.deleteJob(new TaskId(idStr).getJobKey());
			}
		} catch (SchedulerException e) {
			throw new AppException(ResultCode.Failure, e.getMessage());
		}
	}

}

class TaskId {

	/**
	 * id字符串格式: jobName:jobGroup;triggerName:triggerGroup
	 */
	public TaskId(String id) {
		this.jobKey = new JobKey(id.split(";")[0].split(":")[0],
				id.split(";")[0].split(":")[1]);
		this.triggerKey = new TriggerKey(id.split(";")[1].split(":")[0],
				id.split(";")[1].split(":")[1]);
	}

	public TaskId(String jobId, String triggerId) {
		JobDetailsService jobDetailsService = (JobDetailsService) SpringContextUtil
				.getUtil().getBean(JobDetailsService.class);
		TriggersService triggersService = (TriggersService) SpringContextUtil
				.getUtil().getBean(TriggersService.class);
		this.jobDetails = jobDetailsService.get(jobId);
		this.triggers = triggersService.get(triggerId);
		this.jobKey = new JobKey(jobDetails.getJobName(),
				jobDetails.getJobGroup());
		this.triggerKey = new TriggerKey(triggers.getTriggerName(),
				triggers.getTriggerGroup());
	}

	private JobDetails jobDetails;

	private Triggers triggers;

	private JobKey jobKey;

	private TriggerKey triggerKey;

	public JobDetails getJobDetails() {
		return jobDetails;
	}

	public void setJobDetails(JobDetails jobDetails) {
		this.jobDetails = jobDetails;
	}

	public Triggers getTriggers() {
		return triggers;
	}

	public void setTriggers(Triggers triggers) {
		this.triggers = triggers;
	}

	public JobKey getJobKey() {
		return jobKey;
	}

	public void setJobKey(JobKey jobKey) {
		this.jobKey = jobKey;
	}

	public TriggerKey getTriggerKey() {
		return triggerKey;
	}

	public void setTriggerKey(TriggerKey triggerKey) {
		this.triggerKey = triggerKey;
	}

}

2013年12月10日 09:29

Vity
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首先明确几个概念：
1. scheduler：任务(job)调度器
2. trigger:任务（job）调度器
3. job：任务
比较重要的几个关系：
1. scheduler和trigger都是为job服务的，scheduler更像一个容器，存储job及其相关的信息的；
2. trigger，顾名思义就是来告诉scheduler，什么时候调度已经在容器（scheduler）中的job；
3. 我记得1.8中好像一个trigger只能指定给一个job（2.*的我就不清楚了，最近没怎么看），具体的我有点模糊了，不过没必要将两个job指定给一个job；
4. 整合spring和不整合spring的区别在于谁来初始化、管理scheduler，quartz本身也提供的SchdulerFactory对象来创建scheduler。

剩下的基本上就清楚了
1. 创建一个scheduler
2. 创建job，绑定trigger --- > 这个有个综合的概念jobdetail
3. 添加、移除jobDetail（你的问题在这里，就是在1中增加和移除就可以了）

大致的意思就是这样...

2013年12月09日 18:03

Rong_it
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