本文主要是介绍java8中LocalDate和Date之间的转换，希望对大家解决编程问题提供一定的参考价值，需要的开发者们随着小编来一起学习吧！
因为切换到了java8 ,但是一些东西还是使用的 import java.util.Date 对象表示的,所以需要对他们进行转换,
封装了一个工具类,具体,如下:
/*** 张科* 2019年1月14日20:55:54*/
public class DateAndLocalDateUtil {/*** localDate转Date*/public static Date localDate2Date(LocalDate localDate) {ZonedDateTime zonedDateTime = localDate.atStartOfDay(ZoneId.systemDefault());Instant instant1 = zonedDateTime.toInstant();Date from = Date.from(instant1);return from;}/*** Date 转 localDate*/public static LocalDate date2LocalDate(Date date) {Instant instant = date.toInstant();ZonedDateTime zdt = instant.atZone(ZoneId.systemDefault());LocalDate localDate = zdt.toLocalDate();return localDate;}//获取月第一天public static Date getStartDayOfMonth(String date) {LocalDate now = LocalDate.parse(date);return getStartDayOfMonth(now);}public static Date getStartDayOfMonth(LocalDate date) {LocalDate now = date.with(TemporalAdjusters.firstDayOfMonth());return localDate2Date(now);}public static Date getStartDayOfMonth() {return getStartDayOfMonth(LocalDate.now());}//获取月最后一天public static Date getEndDayOfMonth(String date) {LocalDate localDate = LocalDate.parse(date);return getEndDayOfMonth(localDate);}public static Date getEndDayOfMonth(Date date) {return getEndDayOfMonth(date2LocalDate(date));}public static Date getEndDayOfMonth(LocalDate date) {LocalDate now = date.with(TemporalAdjusters.lastDayOfMonth());Date.from(now.atStartOfDay(ZoneId.systemDefault()).plusDays(1L).minusNanos(1L).toInstant());return localDate2Date(now);}public static Date getEndDayOfMonth() {return getEndDayOfMonth(LocalDate.now());}//获取周第一天public static Date getStartDayOfWeek(String date) {LocalDate now = LocalDate.parse(date);return getStartDayOfWeek(now);}public static Date getStartDayOfWeek(TemporalAccessor date) {TemporalField fieldISO = WeekFields.of(Locale.CHINA).dayOfWeek();LocalDate localDate = LocalDate.from(date);localDate = localDate.with(fieldISO, 1);return localDate2Date(localDate);}//获取周最后一天public static Date getEndDayOfWeek(String date) {LocalDate localDate = LocalDate.parse(date);return getEndDayOfWeek(localDate);}public static Date getEndDayOfWeek(TemporalAccessor date) {TemporalField fieldISO = WeekFields.of(Locale.CHINA).dayOfWeek();LocalDate localDate = LocalDate.from(date);localDate = localDate.with(fieldISO, 7);return Date.from(localDate.atStartOfDay(ZoneId.systemDefault()).plusDays(1L).minusNanos(1L).toInstant());}//一天的开始public static LocalDateTime getStartOfDay(LocalDate date) {LocalDateTime time = LocalDateTime.of(date, LocalTime.MIN);return time;}public static LocalDateTime getStartOfDay() {return getStartOfDay(LocalDate.now());}/*** 一天的结束*/public static LocalDateTime getEndOfDay(LocalDate date) {LocalDateTime time = LocalDateTime.of(date, LocalTime.MAX);return time;}public static LocalDateTime getEndOfDay() {return getEndOfDay(LocalDate.now());}}这篇关于java8中LocalDate和Date之间的转换的文章就介绍到这儿，希望我们推荐的文章对编程师们有所帮助！
