摘要:
Car{ Timestamp DateCreated } Map<Timestamp, List<Car>> CarMap = reservePeriodList.stream().collect(groupingBy(Car::getDateCreated)); 阅读全文
posted @ 2022-06-09 17:32
Arborblog
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摘要:
Timestamp转化为String: SimpleDateFormat df = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");//定义格式,不显示毫秒 Timestamp now = new Timestamp(System.currentTimeMil 阅读全文
posted @ 2022-06-09 17:09
Arborblog
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