校验时间格式

  1. public static boolean checkDataFormat(String dataTime, String dataTimeFormat) {
  2.     try {
  3.         LocalDate.parse(dataTime, DateTimeFormatter.ofPattern(dataTimeFormat));
  4.     } catch (DateTimeParseException e) {
  5.         return false;
  6.     }
  7.     return true;
  8. }

增加几天

  1. public static String addDay(String date, String dateFormat, int dayNum) {
  2.     try {
  3.         SimpleDateFormat sdf = new SimpleDateFormat(dateFormat);
  5.         Calendar cd = Calendar.getInstance();
  6.         cd.setTime(sdf.parse(date));
  7.         cd.add(Calendar.DATE, dayNum);
  9.         return sdf.format(cd.getTime());
  11.     } catch (Exception e) {
  12.         return null;
  13.     }
  14. }

时间段包含

  1. public static boolean isInRang(String beginTime, String endTime, String beginTime2, String endTime2) {
  2.     if (beginTime2.compareTo(beginTime) >= 0 && endTime2.compareTo(endTime) <= 0) {
  3.         return true;
  4.     }
  5.     return false;
  6. }

时间工具类 - 图1

时间段重叠

  1. public static boolean isTimeOverlap(String beginTime, String endTime, String beginTime2, String endTime2) {
  2.     if (endTime2.compareTo(beginTime) > 0 && beginTime2.compareTo(endTime) < 0) {
  3.         return true;
  4.     }
  5.     return false;
  6. }

日期秒数

  1. public static long convertStringToSeconds(String date, String dateFormat) {
  2.     SimpleDateFormat format = new SimpleDateFormat(dateFormat);
  3.     long second;
  4.     try {
  5.         //默认毫秒
  6.         second = format.parse(date).getTime() / 1000;
  7.     } catch (ParseException e) {
  8.         throw new RuntimeException(e);
  9.     }
  10.     return second;
  11. }