quartz job基本运用

最近在学习quartz的job功能，自己写了一个简单的类！
1.schedulerManager 类
import org.quartz.CronScheduleBuilder;
import org.quartz.CronTrigger;
import org.quartz.Job;
import org.quartz.JobDetail;
import org.quartz.JobKey;
import org.quartz.Scheduler;
import org.quartz.SchedulerException;
import org.quartz.SchedulerFactory;
import org.quartz.impl.StdSchedulerFactory;
import static org.quartz.JobBuilder.newJob;
import static org.quartz.TriggerBuilder.newTrigger;
import static org.quartz.CronScheduleBuilder.cronSchedule;


//String time 格式 "0/20 * * * * ?"    will run every 20 seconds

public class schedulerManager {
   private SchedulerFactory sf= new StdSchedulerFactory();
   private Scheduler sched= null;
   public schedulerManager() throws SchedulerException {
     // TODO Auto-generated constructor stub
    sched=sf.getScheduler();
  }
   public Scheduler getScheduler(){
    Scheduler sched= this.sched;
     return sched;
  }
   public void StartJob() throws SchedulerException{
    sched.start();
  }
   public void EndJob() throws SchedulerException{
    sched.shutdown( true);
  }
   public int addJob(String jobName,String jobGroups,Job job,String time){
     //必须进行job排除同名同组的    0:添加成功 1:job同名同组 2:异常
     int i=0;
    JobKey jobkey= new JobKey(jobName,jobGroups);
     try{
     if(sched.checkExists(jobkey)){
      i=1;
       return i;
    }} catch (Exception e) {
       // TODO: handle exception
      e.printStackTrace();
      System.out.println(e.getMessage());
    }
    
    JobDetail jobdetail=(JobDetail)newJob(job.getClass())
    .withIdentity(jobName, jobGroups)
    .build();
    
    CronTrigger trigger=newTrigger()
    .withIdentity(jobName, jobGroups)
    .withSchedule(cronSchedule(time))
    .build();
     try{
    sched.scheduleJob(jobdetail, trigger);} catch (Exception e) {
       // TODO: handle exception
      e.printStackTrace();
      System.out.println(e.getMessage());
      i=2;
    }
     return i;
  }
   public int removeJob(String jobName,String jobGroups){
     // 0:remove成功 1:无此job 2:异常
     int i=0;
    JobKey jobkey= new JobKey(jobName,jobGroups);
     try{
       if(!sched.checkExists(jobkey)){
        i=1;
         return i;
      }
      sched.pauseJob(jobkey);
      sched.deleteJob(jobkey);
    } catch (Exception e) {
       // TODO: handle exception
      System.out.println(e.getMessage());
      i=2;
    }
     return i;
  }
   public int ModifyJob(String jobName,String jobGroups,String time){
     // 0:remove成功 1:无此job 2:异常
     int i=0;
    JobKey jobkey= new JobKey(jobName,jobGroups);
     try{
       if(!sched.checkExists(jobkey)){
        i=1;
         return i;
      }
      CronTrigger trigger=newTrigger()
      .withIdentity(jobName, jobGroups)
      .withSchedule(cronSchedule(time))
      .build();
      sched.rescheduleJob(trigger.getKey(), trigger);
    } catch (Exception e) {
       // TODO: handle exception
      e.printStackTrace();
      System.out.println(e.getMessage());
      i=2;
    }
     return i;
  }

}

2.test测试类

import org.quartz.Job;
import org.quartz.SchedulerException;


public class test {

  

   /**
    * @param args
    * @throws SchedulerException
    */
   public static void main(String[] args) throws SchedulerException {
     // TODO Auto-generated method stub
    schedulerManager zz= new schedulerManager();
    HelloJob newhe= new HelloJob();
    zz.addJob( "zz01", "zzgroup01", newhe, "0/2 * * * * ?");
     int i=zz.addJob( "zz02", "zzgroup01", newhe, "0/2 * * * * ?");
    System.out.println(i);
    zz.StartJob();
     try{
      Thread.sleep(30L * 1000L);
    } catch (Exception e) {
       // TODO: handle exception
    }
    zz.EndJob();
  }

}