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