【转载】Java8时间工具类

JDK8基本上是现在最低的要求了。JDK新特性的时间工具类，应该是我们日常生活中能用到的，这里转载一个不错的时间工具类。

感谢原博主:https://www.cnblogs.com/luoliuniankk/p/9878070.html

import java.time.*;
import java.time.format.DateTimeFormatter;
import java.time.temporal.Temporal;
public class DateUtil {
public static final DateTimeFormatter TIME_FORMATTER = DateTimeFormatter.ofPattern("HHmmss");
public static final DateTimeFormatter MONTH_FORMATTER = DateTimeFormatter.ofPattern("yyyyMM");
public static final DateTimeFormatter SHORT_DATE_FORMATTER = DateTimeFormatter.ofPattern("yyMMdd");
public static final DateTimeFormatter SHORT_DATETIME_FORMATTER = DateTimeFormatter.ofPattern("yyMMddHHmmss");
public static final DateTimeFormatter DATETIME_FORMATTER =
DateTimeFormatter.ofPattern("yyyyMMddHHmmss");
public static final DateTimeFormatter DATE_FORMATTER = DateTimeFormatter.ofPattern("yyyyMMdd");
/**
* 返回当前的日期
* @return
*/
public static LocalDate getCurrentLocalDate() {
return LocalDate.now();
}
/**
* 返回当前时间
* @return
*/
public static LocalTime getCurrentLocalTime() {
return LocalTime.now();
}
/**
* 返回当前日期时间
* @return
*/
public static LocalDateTime getCurrentLocalDateTime() {
return LocalDateTime.now();
}
/**
* yyyyMMdd
*
* @return
*/
public static String getCurrentDateStr() {
return LocalDate.now().format(DATE_FORMATTER);
}
/**
* yyMMdd
*
* @return
*/
public static String getCurrentShortDateStr() {
return LocalDate.now().format(SHORT_DATE_FORMATTER);
}
public static String getCurrentMonthStr() {
return LocalDate.now().format(MONTH_FORMATTER);
}
/**
* yyyyMMddHHmmss
* @return
*/
public static String getCurrentDateTimeStr() {
return LocalDateTime.now().format(DATETIME_FORMATTER);
}
/**
* yyMMddHHmmss
* @return
*/
public static String getCurrentShortDateTimeStr() {
return LocalDateTime.now().format(SHORT_DATETIME_FORMATTER);
}
/**
* HHmmss
* @return
*/
public static String getCurrentTimeStr() {
return LocalTime.now().format(TIME_FORMATTER);
}
public static String getCurrentDateStr(String pattern) {
return LocalDate.now().format(DateTimeFormatter.ofPattern(pattern));
}
public static String getCurrentDateTimeStr(String pattern) {
return LocalDateTime.now().format(DateTimeFormatter.ofPattern(pattern));
}
public static String getCurrentTimeStr(String pattern) {
return LocalTime.now().format(DateTimeFormatter.ofPattern(pattern));
}
public static LocalDate parseLocalDate(String dateStr, String pattern) {
return LocalDate.parse(dateStr, DateTimeFormatter.ofPattern(pattern));
}
public static LocalDateTime parseLocalDateTime(String dateTimeStr, String pattern) {
return LocalDateTime.parse(dateTimeStr, DateTimeFormatter.ofPattern(pattern));
}
public static LocalTime parseLocalTime(String timeStr, String pattern) {
return LocalTime.parse(timeStr, DateTimeFormatter.ofPattern(pattern));
}
public static String formatLocalDate(LocalDate date, String pattern) {
return date.format(DateTimeFormatter.ofPattern(pattern));
}
public static String formatLocalDateTime(LocalDateTime datetime, String pattern) {
return datetime.format(DateTimeFormatter.ofPattern(pattern));
}
public static String formatLocalTime(LocalTime time, String pattern) {
return time.format(DateTimeFormatter.ofPattern(pattern));
}
public static LocalDate parseLocalDate(String dateStr) {
return LocalDate.parse(dateStr, DATE_FORMATTER);
}
public static LocalDateTime parseLocalDateTime(String dateTimeStr) {
return LocalDateTime.parse(dateTimeStr, DATETIME_FORMATTER);
}
public static LocalTime parseLocalTime(String timeStr) {
return LocalTime.parse(timeStr, TIME_FORMATTER);
}
public static String formatLocalDate(LocalDate date) {
return date.format(DATE_FORMATTER);
}
public static String formatLocalDateTime(LocalDateTime datetime) {
return datetime.format(DATETIME_FORMATTER);
}
public static String formatLocalTime(LocalTime time) {
return time.format(TIME_FORMATTER);
}
/**
* 日期相隔天数
* @param startDateInclusive
* @param endDateExclusive
* @return
*/
public static long periodDays(LocalDate startDateInclusive, LocalDate endDateExclusive) {
return endDateExclusive.toEpochDay() - startDateInclusive.toEpochDay();
}
/**
* 日期相隔小时
* @param startInclusive
* @param endExclusive
* @return
*/
public static long durationHours(Temporal startInclusive, Temporal endExclusive) {
return Duration.between(startInclusive, endExclusive).toHours();
}
/**
* 日期相隔分钟
* @param startInclusive
* @param endExclusive
* @return
*/
public static long durationMinutes(Temporal startInclusive, Temporal endExclusive) {
return Duration.between(startInclusive, endExclusive).toMinutes();
}
/**
* 日期相隔毫秒数
* @param startInclusive
* @param endExclusive
* @return
*/
public static long durationMillis(Temporal startInclusive, Temporal endExclusive) {
return Duration.between(startInclusive, endExclusive).toMillis();
}
/**
* 是否当天
* @param date
* @return
*/
public static boolean isToday(LocalDate date) {
return getCurrentLocalDate().equals(date);
}
/**
* 获取此日期时间与默认时区<Asia/Shanghai>组合的时间毫秒数
* @param dateTime
* @return
*/
public static Long toEpochMilli(LocalDateTime dateTime) {
return dateTime.atZone(ZoneId.systemDefault()).toInstant().toEpochMilli();
}
/**
* 获取此日期时间与指定时区组合的时间毫秒数
* @param dateTime
* @return
*/
public static Long toSelectEpochMilli(LocalDateTime dateTime, ZoneId zoneId) {
return dateTime.atZone(zoneId).toInstant().toEpochMilli();
}
}

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