pl/sql

public static void main(String[] args) {
        SimpleDateFormat df = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
        Calendar calendar = Calendar.getInstance();
        int now = calendar.get(Calendar.MINUTE);
        System.out.println("now ["+now+"]");
        calendar.set(Calendar.MINUTE, now+5); --当前时间加5分钟
        System.out.println(df.format(calendar.getTime()));
        System.out.println(calendar.getTime());
        System.out.println(calendar.getTimeInMillis()); --最终的时间戳

    }

----查看定时任务下一次执行时间

SELECT  trigger_name,
    prev_fire_time/24/60/60/1000+TO_DATE('1970-01-01', 'yyyy-mm-dd')+numtodsinterval(8, 'hour') AS prev_fire_time,
    next_fire_time/24/60/60/1000+TO_DATE('1970-01-01', 'yyyy-mm-dd')+numtodsinterval(8, 'hour') AS next_fire_time 
FROM EST_TRIGGERS;