update document

xxl-job-admin/src/main/java/com/xxl/job/admin/core/thread/JobScheduleHelper.java

@@ -88,20 +88,15 @@ public class JobScheduleHelper {
                                 } else if (nowTime > jobInfo.getTriggerNextTime()) {
                                     // 2.2、trigger-expire < 5s：direct-trigger && make next-trigger-time
 
-                                    CronExpression cronExpression = new CronExpression(jobInfo.getJobCron());
-                                    long nextTime = cronExpression.getNextValidTimeAfter(new Date()).getTime();
-
                                     // 1、trigger
                                     JobTriggerPoolHelper.trigger(jobInfo.getId(), TriggerTypeEnum.CRON, -1, null, null);
                                     logger.debug(">>>>>>>>>>> xxl-job, shecule push trigger : jobId = " + jobInfo.getId() );
 
                                     // 2、fresh next
-                                    jobInfo.setTriggerLastTime(jobInfo.getTriggerNextTime());
-                                    jobInfo.setTriggerNextTime(nextTime);
-
+                                    refreshNextValidTime(jobInfo, new Date(jobInfo.getTriggerNextTime()));
 
                                     // next-trigger-time in 5s, pre-read again
-                                    if (jobInfo.getTriggerNextTime() - nowTime < PRE_READ_MS) {
+                                    if (jobInfo.getTriggerStatus()==1 && nowTime + PRE_READ_MS > jobInfo.getTriggerNextTime()) {
 
                                         // 1、make ring second
                                         int ringSecond = (int)((jobInfo.getTriggerNextTime()/1000)%60);