Quartz使用-入门使用(java定时任务实现)

「爱情、让人受尽委屈。」 2022-08-23 14:57 160阅读 0赞

//测试main函数
    //QuartzTest.java
    package quartzPackage;
    
    
    import java.text.SimpleDateFormat;
    import java.util.Date;
    
    public class QuartzTest {
    
        /** *//**
         * @param args
         */
        public static void main(String[] args) {
            // TODO Auto-generated method stub
            SimpleDateFormat DateFormat = new SimpleDateFormat("yyyyMMddHHmmss");
            Date d = new Date();
            String returnstr = DateFormat.format(d);    	
        	
            TestJob job = new TestJob();
            String job_name ="11";
            try {
                System.out.println(returnstr+ "【系统启动】");
                QuartzManager.addJob(job_name,job,"0/2 * * * * ?"); //每2秒钟执行一次
                
    //            Thread.sleep(10000);
    //            System.out.println("【修改时间】");
    //            QuartzManager.modifyJobTime(job_name,"0/10 * * * * ?");
    //            Thread.sleep(20000);
    //            System.out.println("【移除定时】");
    //            QuartzManager.removeJob(job_name);
    //            Thread.sleep(10000);
    //            
    //            System.out.println("/n【添加定时任务】");
    //            QuartzManager.addJob(job_name,job,"0/5 * * * * ?");
                
            }  catch (Exception e) {
                e.printStackTrace();
            }
        }
    }

//简单的任务管理类
    //QuartzManager.java
    
    package quartzPackage;
    
    import java.text.ParseException;
    import org.quartz.CronTrigger;
    import org.quartz.Job;
    import org.quartz.JobDetail;
    import org.quartz.Scheduler;
    import org.quartz.SchedulerException;
    import org.quartz.SchedulerFactory;
    import org.quartz.Trigger;
    import org.quartz.impl.StdSchedulerFactory;
    
    /** *//**
     * @Title:Quartz管理类
     * 
     * @Description:
     * 
     * @Copyright: 
     * @author zz  2008-10-8 14:19:01
     * @version 1.00.000
     *
     */
    public class QuartzManager {
       private static SchedulerFactory sf = new StdSchedulerFactory();
       private static String JOB_GROUP_NAME = "group1";
       private static String TRIGGER_GROUP_NAME = "trigger1";
      
       
       /** *//**
        *  添加一个定时任务，使用默认的任务组名，触发器名，触发器组名
        * @param jobName 任务名
        * @param job     任务
        * @param time    时间设置，参考quartz说明文档
        * @throws SchedulerException
        * @throws ParseException
        */
       public static void addJob(String jobName,Job job,String time) 
                                   throws SchedulerException, ParseException{
           Scheduler sched = sf.getScheduler();
           JobDetail jobDetail = new JobDetail(jobName, JOB_GROUP_NAME, job.getClass());//任务名，任务组，任务执行类
           //触发器
           CronTrigger  trigger = 
                new CronTrigger(jobName, TRIGGER_GROUP_NAME);//触发器名,触发器组
           trigger.setCronExpression(time);//触发器时间设定
           sched.scheduleJob(jobDetail,trigger);
           //启动
           if(!sched.isShutdown())
              sched.start();
       }
       
       /** *//**
        * 添加一个定时任务
        * @param jobName 任务名
        * @param jobGroupName 任务组名
        * @param triggerName  触发器名
        * @param triggerGroupName 触发器组名
        * @param job     任务
        * @param time    时间设置，参考quartz说明文档
        * @throws SchedulerException
        * @throws ParseException
        */
       public static void addJob(String jobName,String jobGroupName,
                                 String triggerName,String triggerGroupName,
                                 Job job,String time) 
                                   throws SchedulerException, ParseException{
           Scheduler sched = sf.getScheduler();
           JobDetail jobDetail = new JobDetail(jobName, jobGroupName, job.getClass());//任务名，任务组，任务执行类
           //触发器
           CronTrigger  trigger = 
                new CronTrigger(triggerName, triggerGroupName);//触发器名,触发器组
           trigger.setCronExpression(time);//触发器时间设定
           sched.scheduleJob(jobDetail,trigger);
           if(!sched.isShutdown())
              sched.start();
       }
       
       /** *//**
        * 修改一个任务的触发时间(使用默认的任务组名，触发器名，触发器组名)
        * @param jobName
        * @param time
        * @throws SchedulerException
        * @throws ParseException
        */
       public static void modifyJobTime(String jobName,String time) 
                                      throws SchedulerException, ParseException{
           Scheduler sched = sf.getScheduler();
           Trigger trigger =  sched.getTrigger(jobName,TRIGGER_GROUP_NAME);
           if(trigger != null){
               CronTrigger  ct = (CronTrigger)trigger;
               ct.setCronExpression(time);
               sched.resumeTrigger(jobName,TRIGGER_GROUP_NAME);
           }
       }
       
       /** *//**
        * 修改一个任务的触发时间
        * @param triggerName
        * @param triggerGroupName
        * @param time
        * @throws SchedulerException
        * @throws ParseException
        */
       public static void modifyJobTime(String triggerName,String triggerGroupName,
                                        String time) 
                                      throws SchedulerException, ParseException{
           Scheduler sched = sf.getScheduler();
           Trigger trigger =  sched.getTrigger(triggerName,triggerGroupName);
           if(trigger != null){
               CronTrigger  ct = (CronTrigger)trigger;
               //修改时间
               ct.setCronExpression(time);
               //重启触发器
               sched.resumeTrigger(triggerName,triggerGroupName);
           }
       }
       
       /** *//**
        * 移除一个任务(使用默认的任务组名，触发器名，触发器组名)
        * @param jobName
        * @throws SchedulerException
        */
       public static void removeJob(String jobName) 
                                   throws SchedulerException{
           Scheduler sched = sf.getScheduler();
           sched.pauseTrigger(jobName,TRIGGER_GROUP_NAME);//停止触发器
           sched.unscheduleJob(jobName,TRIGGER_GROUP_NAME);//移除触发器
           sched.deleteJob(jobName,JOB_GROUP_NAME);//删除任务
       }
       
       /** *//**
        * 移除一个任务
        * @param jobName
        * @param jobGroupName
        * @param triggerName
        * @param triggerGroupName
        * @throws SchedulerException
        */
       public static void removeJob(String jobName,String jobGroupName,
                                    String triggerName,String triggerGroupName) 
                                   throws SchedulerException{
           Scheduler sched = sf.getScheduler();
           sched.pauseTrigger(triggerName,triggerGroupName);//停止触发器
           sched.unscheduleJob(triggerName,triggerGroupName);//移除触发器
           sched.deleteJob(jobName,jobGroupName);//删除任务
       }
    }

//测试工作类
    //TestJob.java
    
    package quartzPackage;
    
    import java.text.SimpleDateFormat;
    import java.util.Date;
    
    import org.quartz.Job;
    import org.quartz.JobExecutionContext;
    import org.quartz.JobExecutionException;
    
    public class TestJob implements Job {
        SimpleDateFormat DateFormat = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
        Date d = new Date();
        String returnstr = DateFormat.format(d);  
    
        public void execute(JobExecutionContext arg0) throws JobExecutionException {
            // TODO Auto-generated method stub
            System.out.println(returnstr+"★★★★★★★★★★★");
        }
    
    }