版权声明:版权声明:本文为博主原创文章,未经博主允许不得转载。 https://blog.csdn.net/tanhongwei1994/article/details/86680845
package com.xiaobu.base.utils;
import java.time.*;
import java.time.format.DateTimeFormatter;
import java.time.temporal.ChronoUnit;
/**
* @author xiaobu
* @version JDK1.8.0_171
* @date on 2019/1/11 11:52
* @description V1.0 LocalDateTime工具类
* SQL -> Java
* date -> LocalDate
* time -> LocalTime
* timestamp -> LocalDateTime
*/
public class DateTimeUtils {
public static final DateTimeFormatter TIME_FORMATTER = DateTimeFormatter.ofPattern("HHmmss");
public static final DateTimeFormatter YEAR_MONTH_FORMATTER = DateTimeFormatter.ofPattern("yyyy-MM");
public static final DateTimeFormatter SHORT_DATE_FORMATTER = DateTimeFormatter.ofPattern("yyMMdd");
public static final DateTimeFormatter DATE_FORMATTER = DateTimeFormatter.ofPattern("yyyy-MM-dd");
public static final DateTimeFormatter SHORT_DATETIME_FORMATTER = DateTimeFormatter.ofPattern("yyMMddHHmmss");
public static final DateTimeFormatter DATETIME_FORMATTER = DateTimeFormatter.ofPattern("yyyy-MM-dd HH:mm:ss");
public static final DateTimeFormatter LONG_DATETIME_FORMATTER = DateTimeFormatter.ofPattern("yyyy-MM-dd HH:mm:ss SSS");
/**
* 返回当前的日期
*/
public static LocalDate getCurrentLocalDate() {
return LocalDate.now();
}
/**
* 返回当前时间
*/
public static LocalTime getCurrentLocalTime() {
return LocalTime.now();
}
/**
* 返回当前日期时间
*/
public static LocalDateTime getCurrentLocalDateTime() {
return LocalDateTime.now();
}
/**
* yyyy-MM-dd
*/
public static String getCurrentDateStr() {
return LocalDate.now().format(DATE_FORMATTER);
}
/**
* yyMMdd
*/
public static String getCurrentShortDateStr() {
return LocalDate.now().format(SHORT_DATE_FORMATTER);
}
public static String getCurrentMonthStr() {
return LocalDate.now().format(YEAR_MONTH_FORMATTER);
}
/**
* yyyy-MM-dd HH:mm:ss
*/
public static String getCurrentDateTimeStr() {
return LocalDateTime.now().format(DATETIME_FORMATTER);
}
public static String getCurrentLongDateTimeStr(){
return LocalDateTime.now().format(LONG_DATETIME_FORMATTER);
}
/**
* yyMMddHHmmss
*/
public static String getCurrentShortDateTimeStr() {
return LocalDateTime.now().format(SHORT_DATETIME_FORMATTER);
}
/**
* HHmmss
*/
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 LocalDateTime parseLongLocalDateTime(String longDateTimeStr){
return LocalDateTime.parse(longDateTimeStr, LONG_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);
}
/**
* 日期相隔秒
*/
public static long periodHours(LocalDateTime startDateTime,LocalDateTime endDateTime){
return Duration.between(startDateTime, endDateTime).get(ChronoUnit.SECONDS);
}
/**
* 日期相隔天数
*/
public static long periodDays(LocalDate startDate, LocalDate endDate) {
return startDate.until(endDate, ChronoUnit.DAYS);
}
/**
* 日期相隔周数
*/
public static long periodWeeks(LocalDate startDate, LocalDate endDate) {
return startDate.until(endDate, ChronoUnit.WEEKS);
}
/**
* 日期相隔月数
*/
public static long periodMonths(LocalDate startDate, LocalDate endDate) {
return startDate.until(endDate, ChronoUnit.MONTHS);
}
/**
* 日期相隔年数
*/
public static long periodYears(LocalDate startDate, LocalDate endDate) {
return startDate.until(endDate, ChronoUnit.YEARS);
}
/**
* 是否当天
*/
public static boolean isToday(LocalDate date) {
return getCurrentLocalDate().equals(date);
}
/**
* 获取当前毫秒数
*/
public static Long toEpochMilli(LocalDateTime dateTime) {
return dateTime.atZone(ZoneId.systemDefault()).toInstant().toEpochMilli();
}
/**
* 判断是否为闰年
*/
public static boolean isLeapYear(LocalDate localDate){
return localDate.isLeapYear();
}
}