获取当天0点数据scala实现

项目要求统计0点前一天的统计量，每天定时进行spark任务，代码如下：

val calendar: Calendar = Calendar.getInstance()
    calendar.set(Calendar.SECOND, 0)
    calendar.set(Calendar.MINUTE, 0)
    calendar.set(Calendar.HOUR_OF_DAY, 0)
    calendar.set(Calendar.MILLISECOND, 0)
    val hbaseTimeStopRow: Long = calendar.getTimeInMillis