java 时间通用工具类

亦凉 2023-10-11 14:38 46阅读 0赞

package org.microservice.commons.utils;
    
    import java.time.LocalDate;
    import java.time.LocalDateTime;
    import java.time.ZoneId;
    import java.time.ZonedDateTime;
    import java.time.format.DateTimeFormatter;
    import java.time.temporal.ChronoUnit;
    import java.time.temporal.Temporal;
    import java.time.temporal.TemporalAdjusters;
    
    public class DateUtil {
    
    	/**
    	 * 标准日期格式
    	 */
    	public static final DateTimeFormatter FORMAT_STANDARD = DateTimeFormatter.ofPattern("yyyy-MM-dd HH:mm:ss");
    
    	/**
    	 * 中国标准时区
    	 */
    	public static final ZoneId ZONEID_CHINA = ZoneId.of("Asia/Shanghai");
    
    	/**
    	 * 当前时间
    	 * 
    	 * @return LocalDateTime
    	 */
    	public static LocalDateTime current() {
    		return ZonedDateTime.now(ZONEID_CHINA).toLocalDateTime();
    	}
    
    	/**
    	 * 字符串时间转LocalDateTime
    	 * 
    	 * @param strDate
    	 * @return LocalDateTime
    	 */
    	public static LocalDateTime parse(String strDate) {
    		return LocalDateTime.parse(strDate, FORMAT_STANDARD);
    	}
    
    	/**
    	 * 当前时间
    	 * 
    	 * @return String
    	 */
    	public static String now() {
    		return current().format(FORMAT_STANDARD);
    	}
    
    	/**
    	 * localDateTime转字符串
    	 * 
    	 * @param localDateTime
    	 * @return
    	 */
    	public static String format(LocalDateTime localDateTime) {
    		return localDateTime.format(FORMAT_STANDARD);
    	}
    
    	/**
    	 * 当前时间移动months个月后的时间
    	 * 
    	 * @param months
    	 * @return String
    	 */
    	public static String nowMoveMonths(long months) {
    		return current().plusMonths(months).format(FORMAT_STANDARD);
    	}
    
    	/**
    	 * 当前时间移动days天后的时间
    	 * 
    	 * @param days
    	 * @return String
    	 */
    	public static String nowMoveDays(long days) {
    		return current().plusDays(days).format(FORMAT_STANDARD);
    	}
    
    	/**
    	 * 当前时间移动hours小时后的时间
    	 * 
    	 * @param hours
    	 * @return String
    	 */
    	public static String nowMoveHours(long hours) {
    		return current().plusHours(hours).format(FORMAT_STANDARD);
    	}
    
    	/**
    	 * 当前时间移动minutes分钟后的时间
    	 * 
    	 * @param minutes
    	 * @return String
    	 */
    	public static String nowMoveMinutes(long minutes) {
    		return current().plusMinutes(minutes).format(FORMAT_STANDARD);
    	}
    
    	/**
    	 * 提取当前时间的日期部分
    	 * 
    	 * @return
    	 */
    	public static String toLocalDate() {
    		return current().toLocalDate().toString();
    	}
    
    	/**
    	 * 提取当前时间的时间部分
    	 * 
    	 * @return
    	 */
    	public static String toLocalTime() {
    		return current().toLocalTime().format(DateTimeFormatter.ofPattern("HH:mm:ss"));
    	}
    
    	/**
    	 * 求两个时间相差几年
    	 * 
    	 * @param startDate
    	 * @param endDate
    	 * @return
    	 */
    	public static long yearsDiff(String startDate, String endDate) {
    		return yearsDiff(LocalDateTime.parse(startDate, FORMAT_STANDARD),
    				LocalDateTime.parse(endDate, FORMAT_STANDARD));
    	}
    
    	public static long yearsDiff(Temporal startDate, Temporal endDate) {
    		return ChronoUnit.YEARS.between(startDate, endDate);
    	}
    
    	/**
    	 * 求两个时间相差几个月
    	 * 
    	 * @param startDate
    	 * @param endDate
    	 * @return
    	 */
    	public static long monthsDiff(String startDate, String endDate) {
    		return monthsDiff(parse(startDate), parse(endDate));
    	}
    
    	public static long monthsDiff(Temporal startDate, Temporal endDate) {
    		return ChronoUnit.MONTHS.between(startDate, endDate);
    	}
    
    	/**
    	 * 求两个时间相差几天
    	 * 
    	 * @param startDate
    	 * @param endDate
    	 * @return
    	 */
    	public static long daysDiff(String startDate, String endDate) {
    		return daysDiff(parse(startDate), parse(endDate));
    	}
    
    	public static long daysDiff(Temporal startDate, Temporal endDate) {
    		return ChronoUnit.DAYS.between(startDate, endDate);
    	}
    
    	/**
    	 * 求两个时间相差几个小时
    	 * 
    	 * @param startDate
    	 * @param endDate
    	 * @return
    	 */
    	public static long hoursDiff(String startDate, String endDate) {
    		return hoursDiff(parse(startDate), parse(endDate));
    	}
    
    	public static long hoursDiff(Temporal startDate, Temporal endDate) {
    		return ChronoUnit.HOURS.between(startDate, endDate);
    	}
    
    	/**
    	 * 求两个时间相差几分钟
    	 * 
    	 * @param startDate
    	 * @param endDate
    	 * @return
    	 */
    	public static long minutesDiff(String startDate, String endDate) {
    		return minutesDiff(parse(startDate), parse(endDate));
    	}
    
    	public static long minutesDiff(Temporal startDate, Temporal endDate) {
    		return ChronoUnit.MINUTES.between(startDate, endDate);
    	}
    
    	/**
    	 * 求两个时间相差几秒
    	 * 
    	 * @param startDate
    	 * @param endDate
    	 * @return
    	 */
    	public static long secondsDiff(String startDate, String endDate) {
    		return secondsDiff(parse(startDate), parse(endDate));
    	}
    
    	public static long secondsDiff(Temporal startDate, Temporal endDate) {
    		return ChronoUnit.SECONDS.between(startDate, endDate);
    	}
    
    	/**
    	 * 求两个时间相差多少毫秒
    	 * 
    	 * @param startDate
    	 * @param endDate
    	 * @return
    	 */
    	public static long millisDiff(String startDate, String endDate) {
    		return millisDiff(parse(startDate), parse(endDate));
    	}
    
    	public static long millisDiff(Temporal startDate, Temporal endDate) {
    		return ChronoUnit.MILLIS.between(startDate, endDate);
    	}
    
    	/**
    	 * 获取当月的第一天
    	 * 
    	 * @return
    	 */
    	public static String firstDayOfMonth() {
    		return firstDayOfMonth(current().toLocalDate());
    	}
    
    	public static String firstDayOfMonth(LocalDate localDate) {
    		return localDate.with(TemporalAdjusters.firstDayOfMonth()).toString();
    	}
    
    	/**
    	 * 获取当月的最后一天
    	 * 
    	 * @return
    	 */
    	public static String lastDayOfMonth() {
    		return lastDayOfMonth(current().toLocalDate());
    	}
    
    	public static String lastDayOfMonth(LocalDate localDate) {
    		return localDate.with(TemporalAdjusters.lastDayOfMonth()).toString();
    	}
    
    }