Java8时间日期转换

Java8时间转换

    String timeStr = "2019-08-26 18:03:33";
    DateTimeFormatter timeDtf = DateTimeFormatter.ofPattern("yyyy-MM-dd HH:mm:ss");
    LocalDateTime localDateTime = LocalDateTime.parse(timeStr, timeDtf);
    ZoneId zone = ZoneId.systemDefault();
    Instant instant = localDateTime.atZone(zone).toInstant();
    Date date = Date.from(instant);   

Java8日期转换

String timeStr = "2019-08-26";
DateTimeFormatter timeDtf = DateTimeFormatter.ofPattern("yyyy-MM-dd");
LocalDate localDate = LocalDate.parse(timeStr, timeDtf);
ZoneId zoneId = ZoneId.systemDefault();
ZonedDateTime zdt = localDate.atStartOfDay(zoneId);
Date date = Date.from(zdt.toInstant());
System.out.println(date);

区别在于LocalDateTime 和LocalDate 的使用