我在成功安排工作时没有遇到标题中提到的错误,特别是:The job (CRAWLS.my_repos) referenced by the trigger does not exist. [See nested exception: org.quartz.JobPersistenceException: The job (CRAWLS.my_repos) referenced by the trigger does not exist.]
这里看一下代码......其中一切看起来都应该没问题。
runJob方法......需要注意的主要问题是它在这一行中失败了:m_scheduler.scheduleJob(trigger);
方法的其余部分是存在的,以防其余部分有用。
public void runJob(JobInfo jobInfo,
com.lawson.search.spi.common.Properties jobProperties)
{
try {
JobDataMap jobDataMap = QuartzUtils.createJobDataMapFromLesProperties(jobProperties);
if (jobExists(jobInfo)) {
m_scheduler.triggerJob(jobKey(jobInfo.getName(), jobInfo.getGroup()), jobDataMap);
} else {
JobDetail job = QuartzUtils.createJobDetailFromJobInfo(jobInfo);
Trigger trigger = newTrigger()
.forJob(job)
.withIdentity(getImmediateTriggerName(jobInfo))
.build();
m_scheduler.scheduleJob(trigger);
}
} catch (SchedulerException e) {
String msg = "runJob: " + jobInfo;
if (s_log.isDebugEnabled()) {
s_log.debug(msg, e);
}
throw new JobSchedulerException(msg, e);
}
}
createJobDetailFromJobInfo()
方法很简单,但很重要:
static JobDetail createJobDetailFromJobInfo(JobInfo theJobInfo)
{
JobDetail detail = newJob(QuartzJobAdapter.class)
.withIdentity(theJobInfo.getName(), theJobInfo.getGroup())
.storeDurably()
.build();
return detail;
}
我能想到的唯一另一个重要的方法是getImmediateTriggerName()
方法,我认为这可能会引起一个问题...但我不知道为什么。
private String getImmediateTriggerName(JobInfo jobInfo)
{
return jobInfo.getName() + "#" + jobInfo.getGroup() + ":" + System.currentTimeMillis();
}
任何帮助,将不胜感激。
尝试安排一份工作
// Schedule the job with the trigger
m_scheduler.scheduleJob(job, trigger);
代替
m_scheduler.scheduleJob(trigger);
How-To: Scheduling a Job in 2.1.x和How-To: Scheduling a Job in 2.2.x
两个版本的代码相同
// Define job instance
JobDetail job1 = newJob(ColorJob.class)
.withIdentity("job1", "group1")
.build();
// Define a Trigger that will fire "now", and not repeat
Trigger trigger = newTrigger()
.withIdentity("trigger1", "group1")
.startNow()
.build();
// Schedule the job with the trigger
sched.scheduleJob(job, trigger);
无论如何,只有当石英在JobDetail
方法的触发器存储期间无法为触发器的jobkey检索storeTrigger
时抛出异常
if (retrieveJob(newTrigger.getJobKey()) == null) {
throw new JobPersistenceException("The job ("
+ newTrigger.getJobKey()
+ ") referenced by the trigger does not exist.");
}
// add to triggers array
triggers.add(tw);
....
public JobDetail retrieveJob(JobKey jobKey) {
synchronized(lock) {
JobWrapper jw = jobsByKey.get(jobKey);
return (jw != null) ? (JobDetail)jw.jobDetail.clone() : null;
}
}
所以你的错误很奇怪,因为jobkey是先前在forJob
类的TriggerBuilder
方法中指定的
public TriggerBuilder<T> forJob(JobDetail jobDetail) {
JobKey k = jobDetail.getKey();
if(k.getName() == null)
throw new IllegalArgumentException("The given job has not yet had a name assigned to it.");
this.jobKey = k;
return this;
}
尝试安排工作
m_scheduler.scheduleJob(job, trigger);
首先,如前所述,如果不起作用,您应该调试代码并检查作业键,如果您的键是正确的,可能问题不在您的代码中,并且是石英配置不匹配。
当我收到这个错误时,是因为我用myJobClass.getClass()注册了这个作业,但我有一个guice在类周围包装一个拦截器,所以类名不匹配(即运行时类是... $$ EnhancerByGuice $$ 13db15)。 Spring可能会发生类似的事情。