java时间对比

1、LocateTime转成时间戳进行对比

	//获取当前时间的LocalDateTime对象
   LocalDateTime ldt = LocalDateTime.now();
  //将ldt对象转化为时间戳
   long l1 = ldt.toEpochSecond(ZoneOffset.UTC);

   LocalDateTime addTimeT = arr.getAddTime();
   //将ldt对象转化为时间戳
   long l3 = addTimeT.toEpochSecond(ZoneOffset.UTC);

2、LocalDate比较大小

LocalDate repairDateT = LocalDate.now()
repairDateT.isBefore(timeT) 
repairDateT.isAfter(timeT)
repairDateT.equals(timeT)

3、String转成LocalDate

String dateStr = "2024-01-01";
DateTimeFormatter formatter = DateTimeFormatter.ofPattern("yyyy-MM-dd");
LocalDate date = LocalDate.parse(dateStr, formatter);
LocalDate now = date.minusDays(1);