有没有什么办法可以在特定的日期之后设置crontrigger的开始,也就是crontrigger会在使用cron表达式的特定日期之后触发。我尝试使用crontrigger starttime和firstfire time但是没有工作。可以用另一个触发器做到这一点,但我认为应该有另一种方式。石英cron触发器第一次着火时间
这是cron表达式
0 0/5 * * * ?
即在分钟(5,10,15,... 00)不现在+ 5
这是日志程序写入
触发器应开始于周五5月27日21时03分31秒EEST 2011 //我希望它在这个时间
Job start at Fri May 27 20:55:00 EEST 2011 //it ignore start time
Job start at Fri May 27 21:00:00 EEST 2011
Job start at Fri May 27 21:05:00 EEST 2011
运行
public CronTrigger scheduleJob(RemoteJob job, String cronExpression,Date firstFireTime) throws SchedulerException, ParseException {
JobDetail jobDetail = new JobDetail(job.getDescription(), job.getName(), job.getClass());
CronTrigger crTrigger = new CronTrigger(
"cronTrigger", job.getName(), cronExpression);
scheduler.scheduleJob(jobDetail, crTrigger);
try{
Calendar c=Calendar.getInstance();
c.add(Calendar.MINUTE, 10);
firstFireTime=c.getTime();
FileWriter writer=new FileWriter("/opt/scheduler.cron",true);
writer.write("Trigger should start at " +c.getTime().toString()+"\n\n");
writer.close();
}catch(Exception e){
}
crTrigger.setStartTime(firstFireTime);
crTrigger.setMisfireInstruction(CronTrigger.MISFIRE_INSTRUCTION_DO_NOTHING);
return crTrigger;
}
这是通过触发器执行的作业。
public class ExternalJob extends RemoteJob {
private static final Logger _logger = Logger.getLogger(ExternalJob.class.getName());
private static ExternalStorageProcessor processor = new ExternalStorageProcessor();
private ExternalTask task;
private static final String tempPath = "/opt/itaptemp/";
private String name;
private String description;
private static final long MARK=1L;
public ExternalJob(String name, String description) {
public void execute(JobExecutionContext context) throws JobExecutionException {
try{
Calendar c=Calendar.getInstance();
FileWriter writer=new FileWriter("/opt/scheduler.cron",true);
writer.write("Job start at " +c.getTime().toString()+"\n");
writer.close();
}catch(Exception e){
}
你确定这是cron的触发 – ayengin 2011-05-27 18:08:40
绝对的情况下(除非有报道以前从未错误)。 – jhouse 2011-05-27 20:27:35
我添加了我的调试信息和代码.Cron触发器忽略了启动时间。 – ayengin 2011-05-29 16:42:57