Quartz的任务的临时启动和暂停和恢复

        在项目中需要手动启停某些服务，那么需要有一个控制这些任务的类。由于任务是有Quartz控制的，我们只需要通过Quartz的相关的API实现相关的功能即可。

      

package com.easyway.app.quartz.mgr;

import java.util.Date;
import java.util.List;
import java.util.Map;

import org.quartz.JobDataMap;
import org.quartz.JobDetail;
import org.quartz.JobKey;
import org.quartz.Scheduler;
import org.quartz.SchedulerException;
import org.quartz.SchedulerFactory;
import org.quartz.Trigger;
import org.quartz.TriggerKey;
import org.quartz.impl.StdSchedulerFactory;
import org.quartz.impl.matchers.GroupMatcher;

/**
 * 一个简单的quartz任务管理器
 * @author longgangbai
 *
 */
public class QuartzScheduleMgr {
	private static  Scheduler scheduler=getScheduler();
	/**
	 * 创建一个调度对象
	 * @return
	 * @throws SchedulerException
	 */
	private static Scheduler getScheduler() {
		    SchedulerFactory sf = new StdSchedulerFactory();
	        Scheduler scheduler=null;
			try {
				scheduler = sf.getScheduler();
			} catch (SchedulerException e) {
				e.printStackTrace();
			}
	        return scheduler;
	}
	public static Scheduler getInstanceScheduler(){
		return scheduler;
	}

	/**
	 * 启动一个调度对象
	 * @throws SchedulerException
	 */
	public  void start() throws SchedulerException
	{ 
		scheduler.start();
	}
    
    /**
     * 检查调度是否启动
     * @return
     * @throws SchedulerException
     */
	public  boolean isStarted() throws SchedulerException
	{
		return scheduler.isStarted();
	}

    /**
     * 关闭调度信息
     * @throws SchedulerException
     */
	public  void shutdown() throws SchedulerException	{
		scheduler.shutdown();
	}
    /**
     * 添加调度的job信息
     * @param jobdetail
     * @param trigger
     * @return
     * @throws SchedulerException
     */
	public  Date scheduleJob(JobDetail jobdetail, Trigger trigger)
			throws SchedulerException{
				return scheduler.scheduleJob(jobdetail, trigger); 
	}
    /**
     * 添加相关的触发器
     * @param trigger
     * @return
     * @throws SchedulerException
     */
	public  Date scheduleJob(Trigger trigger) throws SchedulerException{
		return scheduler.scheduleJob(trigger);
	}
	 /**
	  * 添加多个job任务
	  * @param triggersAndJobs
	  * @param replace
	  * @throws SchedulerException
	  */
	 public  void scheduleJobs(Map<JobDetail, List<Trigger>> triggersAndJobs, boolean replace) throws SchedulerException
	 {
		scheduler.scheduleJobs(triggersAndJobs, replace);
	}
    /**
     * 停止调度Job任务
     * @param triggerkey
     * @return
     * @throws SchedulerException
     */
	public  boolean unscheduleJob(TriggerKey triggerkey)
			throws SchedulerException{
		return scheduler.unscheduleJob(triggerkey);
	}

	/**
	 * 停止调度多个触发器相关的job
	 * @param list
	 * @return
	 * @throws SchedulerException
	 */
	public  boolean unscheduleJobs(List<TriggerKey> triggerKeylist) throws SchedulerException{
		return scheduler.unscheduleJobs(triggerKeylist);
	}
	/**
	 * 重新恢复触发器相关的job任务 
	 * @param triggerkey
	 * @param trigger
	 * @return
	 * @throws SchedulerException
	 */
	public  Date rescheduleJob(TriggerKey triggerkey, Trigger trigger)
	throws SchedulerException{
		return scheduler.rescheduleJob(triggerkey, trigger);
	}
	/**
	 * 添加相关的job任务
	 * @param jobdetail
	 * @param flag
	 * @throws SchedulerException
	 */
	public  void addJob(JobDetail jobdetail, boolean flag)
			throws SchedulerException	{
		scheduler.addJob(jobdetail, flag);
	}

	/**
	 * 删除相关的job任务
	 * @param jobkey
	 * @return
	 * @throws SchedulerException
	 */
	public  boolean deleteJob(JobKey jobkey) throws SchedulerException{
		return scheduler.deleteJob(jobkey);
	}

	/**
	 * 删除相关的多个job任务
	 * @param jobKeys
	 * @return
	 * @throws SchedulerException
	 */
	public     boolean deleteJobs(List<JobKey> jobKeys)
    throws SchedulerException{
		return scheduler.deleteJobs(jobKeys);
	}
    /**
     * 
     * @param jobkey
     * @throws SchedulerException
     */
	public  void triggerJob(JobKey jobkey) throws SchedulerException	{
		scheduler.triggerJob(jobkey);
	}
    /**
     * 
     * @param jobkey
     * @param jobdatamap
     * @throws SchedulerException
     */
	public  void triggerJob(JobKey jobkey, JobDataMap jobdatamap)
			throws SchedulerException	{
		scheduler.triggerJob(jobkey, jobdatamap);
	}
    /**
     * 停止一个job任务
     * @param jobkey
     * @throws SchedulerException
     */
	public  void pauseJob(JobKey jobkey) throws SchedulerException	{
		scheduler.pauseJob(jobkey);
	}
    /**
     * 停止多个job任务
     * @param groupmatcher
     * @throws SchedulerException
     */
	public  void pauseJobs(GroupMatcher<JobKey> groupmatcher)
			throws SchedulerException	{
		scheduler.pauseJobs(groupmatcher);
	}
    /**
     * 停止使用相关的触发器
     * @param triggerkey
     * @throws SchedulerException
     */
	public  void pauseTrigger(TriggerKey triggerkey)
			throws SchedulerException	{
		scheduler.pauseTrigger(triggerkey);
	}

	public  void pauseTriggers(GroupMatcher<TriggerKey> groupmatcher)
			throws SchedulerException	{
		scheduler.pauseTriggers(groupmatcher);
	}
    /**
     * 恢复相关的job任务
     * @param jobkey
     * @throws SchedulerException
     */
	public  void resumeJob(JobKey jobkey) throws SchedulerException	{
		scheduler.pauseJob(jobkey);
	}
    
	public  void resumeJobs(GroupMatcher<JobKey> matcher)
			throws SchedulerException	{
		scheduler.resumeJobs(matcher);
	}

	public  void resumeTrigger(TriggerKey triggerkey)
			throws SchedulerException	{
		scheduler.resumeTrigger(triggerkey);
	}
   
	public  void resumeTriggers(GroupMatcher<TriggerKey>  groupmatcher)
			throws SchedulerException
	{
		scheduler.resumeTriggers(groupmatcher);	
	}
    /**
     * 暂停调度中所有的job任务
     * @throws SchedulerException
     */
	public  void pauseAll() throws SchedulerException
	{
		scheduler.pauseAll();
	}
    /**
     * 恢复调度中所有的job的任务
     * @throws SchedulerException
     */
	public  void resumeAll() throws SchedulerException
	{
		scheduler.resumeAll();
	}
	
	
	
}

 

 

 

创建一个Job任务：

/* 
 * Copyright 2005 - 2009 Terracotta, Inc. 
 * 
 * Licensed under the Apache License, Version 2.0 (the "License"); you may not 
 * use this file except in compliance with the License. You may obtain a copy 
 * of the License at 
 * 
 *   http://www.apache.org/licenses/LICENSE-2.0 
 *   
 * Unless required by applicable law or agreed to in writing, software 
 * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT 
 * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the 
 * License for the specific language governing permissions and limitations 
 * under the License.
 * 
 */

package com.easyway.app.quartz.mgr;

import java.util.Date;

import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.quartz.Job;
import org.quartz.JobExecutionContext;
import org.quartz.JobExecutionException;

/**
 * 一个简单的quartz调用job
 * @author longgangbai
 *
 */
public class HelloJob implements Job {

    private static Logger _log = LoggerFactory.getLogger(HelloJob.class);

    public HelloJob() {
    }

    public void execute(JobExecutionContext context)
        throws JobExecutionException {
        _log.info("Hello World! - " + new Date());
    }

}

 

 

创建触发器和调用相关的Job

/* 
 * Copyright 2005 - 2009 Terracotta, Inc. 
 * 
 * Licensed under the Apache License, Version 2.0 (the "License"); you may not 
 * use this file except in compliance with the License. You may obtain a copy 
 * of the License at 
 * 
 *   http://www.apache.org/licenses/LICENSE-2.0 
 *   
 * Unless required by applicable law or agreed to in writing, software 
 * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT 
 * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the 
 * License for the specific language governing permissions and limitations 
 * under the License.
 * 
 */

package com.easyway.app.quartz.mgr;

import static org.quartz.DateBuilder.evenMinuteDate;
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.Trigger;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

/**
 * 一个简单的测试quartz任务管理器测试类
 * @author longgangbai
 *
 */
public class QuartzScheduleMain {

    
	/**
	 * 
	 * @throws Exception
	 */
    public void run() throws Exception {
        Logger log = LoggerFactory.getLogger(QuartzScheduleMain.class);

        log.info("------- Initializing ----------------------");

        // First we must get a reference to a scheduler
        //从调度管理器中获取调度对象
        Scheduler sched = QuartzScheduleMgr.getInstanceScheduler();
        log.info("------- Initialization Complete -----------");

        // computer a time that is on the next round minute
        Date runTime = evenMinuteDate(new Date());

        log.info("------- Scheduling Job  -------------------");

        // define the job and tie it to our HelloJob class
        //创建相关的job信息
        JobDetail job = newJob(HelloJob.class)
            .withIdentity("job1", "group1")
            .build();
        
        // Trigger the job to run on the next round minute
        //创建一个触发器的名称
        Trigger trigger = newTrigger()
            .withIdentity("trigger1", "group1")
            .startAt(runTime)
            .build();
        
        // Tell quartz to schedule the job using our trigger
        //设置调度相关的Job
        sched.scheduleJob(job, trigger);
        log.info(job.getKey() + " will run at: " + runTime);  

        // Start up the scheduler (nothing can actually run until the 
        // scheduler has been started)
        //启动调度任务
        sched.start();

        log.info("------- Started Scheduler -----------------");

        try {
            Thread.sleep(25L * 1000L); 
            // executing...
        } catch (Exception e) {
        }
        //暂时停止Job任务开始执行
        log.info("-------pauseJob.. -------------");
        sched.pauseJob(job.getKey());
        
        try {
            Thread.sleep(10L * 1000L); 
        } catch (Exception e) {
        }
        log.info("------- resumeJob... -------------");
        //恢复Job任务开始执行
        sched.resumeJob(job.getKey());
        try {
            Thread.sleep(10L * 1000L); 
            // executing...
        } catch (Exception e) {
        }
        
        
        // wait long enough so that the scheduler as an opportunity to 
        // run the job!
        log.info("------- Waiting 65 seconds... -------------");
        try {
            // wait 65 seconds to show job
            Thread.sleep(65L * 1000L); 
            // executing...
        } catch (Exception e) {
        }

        // shut down the scheduler
        log.info("------- Shutting Down ---------------------");
        sched.shutdown(true);
        log.info("------- Shutdown Complete -----------------");
    }

    public static void main(String[] args) throws Exception {

        QuartzScheduleMain example = new QuartzScheduleMain();
        example.run();

    }

}

 

评论

6 楼 mengfei86 2014-08-14  

adezuo 写道

/**
     * 停止一个job任务
     * @param jobkey
     * @throws SchedulerException
     */ 
    public  void pauseJob(JobKey jobkey) throws SchedulerException  { 
        scheduler.pauseJob(jobkey); 
    } 

我再测试中发现,使用这种方式停止一个Job任务后,当前任务还是继续执行完毕,不知为何?

比如计划执行5次,当执行到第二次的过程中,手动停止此任务,可是第2次还是正常执行完毕,第三次没有启动。

楼主是否碰到此类问题，如何停止当前正在执行的任务？

这个任务就是一个激发过程，。。开始之后就不受他的控制了，他只管之后的任务不让激发了。  也就是他帮助启动了一个线程执行你要执行的代码。。代码执行过程中他是没法控制的。  希望对你有所帮助

5 楼 adezuo 2014-08-08  

/**
     * 停止一个job任务
     * @param jobkey
     * @throws SchedulerException
     */ 
    public  void pauseJob(JobKey jobkey) throws SchedulerException  { 
        scheduler.pauseJob(jobkey); 
    } 

我再测试中发现,使用这种方式停止一个Job任务后,当前任务还是继续执行完毕,不知为何?

比如计划执行5次,当执行到第二次的过程中,手动停止此任务,可是第2次还是正常执行完毕,第三次没有启动。

楼主是否碰到此类问题，如何停止当前正在执行的任务？

4 楼 aqingtian005 2014-05-30  

首先感谢楼主的分享 。

最近在项目上使用Quartz做任务调度，需要手动来管理Job,如是挖坟挖到这里来了，LZ的代码给了我很大的其实，后来结合Spring通过Job代理的方式实现了动态添加Job(POJO,并非配置在Spring中)，完成了需求。最后在测试Job暂停和恢复事，死活恢复不了，浪费我一下午的时间去排错，甚至怀疑Spring的bug

问题在这里：
/**
     * 恢复相关的job任务
     * @param jobkey
     * @throws SchedulerException
     */ 
    public  void resumeJob(JobKey jobkey) throws SchedulerException { 
        scheduler.pauseJob(jobkey); 
    }

3 楼 kingasdfg 2014-03-11  

首先感谢分享，但是发现还有一些不够完善的地方
在测试例子里，有方法的创建，启动 暂停等
但是如果任务调度没有执行完，在这个过程中去停止对于业务逻辑会产生很糟糕的影响，应该去添加一些状态判断

2 楼 0564long 2013-04-28  

1 楼 mengfei86 2013-01-22