有沒有什麼辦法可以在特定的日期之後設置crontrigger的開始,也就是crontrigger會在使用cron表達式的特定日期之後觸發。我嘗試使用crontrigger starttime和firstfire time但是沒有工作。可以用另一個觸發器做到這一點,但我認爲應該有另一種方式。石英cron觸發器第一次着火時間
這是cron表達式
0 0/5 * * * ?
即在分鐘(5,10,15,... 00)不現在+ 5
這是日誌程序寫入
觸發器應開始於週五5月27日21時03分31秒EEST 2011 //我希望它在這個時間
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
運行
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;
}
這是通過觸發器執行的作業。
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){
}
你確定這是cron的觸發 – ayengin 2011-05-27 18:08:40
絕對的情況下(除非有報道以前從未錯誤)。 – jhouse 2011-05-27 20:27:35
我添加了我的調試信息和代碼.Cron觸發器忽略了啓動時間。 – ayengin 2011-05-29 16:42:57