我想动态地向作业添加触发器,但无法从Scheduler
中找到任何有用的方法我虽然我只能重复调用scheduleJob方法,但是这给了我ObjectAlreadyExists Exception“因为已经存在这个标识”。
我该怎么做?
修改
private boolean scheduleLoadJob( XfuScheduleTimeInfo time )
{
LoadScheduleJob job = new LoadScheduleJob( time );
JobDetail detail;
Integer id = Integer.valueOf( time.getScheduleId() );
if( _hashMap.containsKey( id ) )
{
detail = _hashMap.get( Integer.valueOf( time.getScheduleId() ) );
}
else
{
detail = job.getDetail();
_hashMap.put( id, detail );
}
try
{
Trigger newTrigger = job.getTrigger();
_log.debug( "------" + newTrigger.getKey() );
_quartzScheduler.scheduleJob( detail, newTrigger );
return true;
}
catch( ParseException e )
{
_log.error( "Unable to parse cron expression for " + job.getInfo() );
return false;
}
catch( SchedulerException e )
{
_log.error( "Job scheduling failed for " + job.getInfo() );
return false;
}
}
使用控制台输出
------ LoadJobs.Trigger-44
批量获取1个触发器
生成Job'LoadJobs.Job-42'的实例,class = com.scheduling.LoadScheduleJob
调用执行LoadJobs.Job-42
批量获取1个触发器
求职:42:44
------ LoadJobs.Trigger-45
42:45 - 1/5 * *的作业调度失败? * *
答案 0 :(得分:10)
This post给出了提示,但结论(schedulerInstance.add(trigger))自Quartz 2.01起无效。
在将作业分配给触发器之后使用以下内容(一种方法是使用TriggerBuilder的forJob方法)
schedulerInstance.scheduleJob( newTrigger )
答案 1 :(得分:5)
CronTrigger trigger=null;
CronTrigger trigger1=null;
CronTrigger trigger2=null;
JobDetail job = new JobDetail();
job.setName("dummyJobName");
job.setJobClass(ExampleJob.class);
trigger = new CronTrigger();
trigger.setName("AppTrigger");
trigger.setGroup(job.getGroup());
trigger.setJobName(job.getName());
trigger.setJobGroup(job.getGroup());
trigger.setCronExpression("*/2 * * * * ?");
trigger1 = new CronTrigger();
trigger1.setName("AppTrigger1");
trigger1.setGroup(job.getGroup());
trigger1.setJobName(job.getName());
trigger1.setJobGroup(job.getGroup());
trigger1.setCronExpression("*/2 * * * * ?");
trigger2 = new CronTrigger();
trigger2.setName("AppTrigger2");
trigger2.setGroup(job.getGroup());
trigger2.setJobName(job.getName());
trigger2.setJobGroup(job.getGroup());
trigger2.setCronExpression("*/2 * * * * ?");
Scheduler scheduler = new StdSchedulerFactory().getScheduler();
scheduler.start();
scheduler.addJob(job, true);
scheduler.scheduleJob(trigger);
scheduler.scheduleJob(trigger1);
scheduler.scheduleJob(trigger2);
答案 2 :(得分:1)
您可以重复调用scheduleJob。只需确保为每个Trigger指定一个唯一的名称/组。
请参阅TriggerBuilder.withIdentity:http://www.quartz-scheduler.org/docs/api/2.0.0/index.html