基于Java和Vue的美容院预约管理APP与后台管理系统设计源码

package com.salon.common.utils; import com.salon.common.exception.CustomException; import java.text.DateFormat; import java.text.ParseException; import java.text.SimpleDateFormat; import java.time.Instant; import java.time.LocalDate; import java.time.LocalDateTime; import java.time.ZoneId; import java.time.ZoneOffset; import java.time.format.DateTimeFormatter; import java.time.temporal.ChronoUnit; import java.util.ArrayList; import java.util.Calendar; import java.util.Date; import java.util.GregorianCalendar; import java.util.List; import java.util.Objects; import lombok.extern.slf4j.Slf4j; import org.joda.time.DateTime; @Slf4j public class DateUtils { /** * 年-月-日 时:分:秒 */ public static final String FORMAT_YMDHMS = "yyyy-MM-dd HH:mm:ss"; /** * 年-月-日 */ public static final String FORMAT_YMD = "yyyy-MM-dd"; /** * 时:分:秒 */ public static final String FORMAT_HMS = "HH:mm:ss"; /** * 年月日时分秒 */ public static final String FORMAT_YMDHMS_NOS = "yyyyMMddHHmmss"; /** * 年-月-日 时:分:秒:SSS */ public static final String FORMAT_YMDHMS_SSS = "yyyy-MM-dd HH:mm:ss:SSS"; public static final String fmt5 = "yyyyMMdd"; /** * 一天的毫秒数 */ public static final Long dayLong = 1000 * 24 * 60 * 60L; /** * 一小时的毫秒数 */ public static final Long hourLong = 1000 * 60 * 60L; /** * 一分钟的毫秒数 */ public static final Long miniuteLong = 1000 * 60 * 60L; /** * 年-月 */ public static final String FORMAT_YM = "yyyy-MM"; /** * 获取标准时间格式（yyyy-MM-dd HH:mm:ss）字符串 * * @return */ public static String getDate_ymdhms() { SimpleDateFormat simpledateformat = new SimpleDateFormat(FORMAT_YMDHMS); Date date = new Date(); return simpledateformat.format(date); } public static Date parseDate(String timeStr, String timeFormat) { SimpleDateFormat simpledateformat = new SimpleDateFormat(timeFormat); try { return simpledateformat.parse(timeStr); } catch (ParseException e) { log.error("{} cannot be converted to Time", timeStr, e); } return null; } /** * string转LocalDateTime * * @param str * @return */ public static LocalDateTime getLocalDateTime(String str, String timeFm) { DateTimeFormatter dateTimeFormatter = DateTimeFormatter.ofPattern(timeFm); return LocalDateTime.parse(str, dateTimeFormatter); } /** * string转LocalDate * * @param str * @return */ public static LocalDate getLocalDate(String str, String timeFm) { DateTimeFormatter dateTimeFormatter = DateTimeFormatter.ofPattern(timeFm); return LocalDate.parse(str, dateTimeFormatter); } public static LocalDate getLocalDate(String str) { DateTimeFormatter dateTimeFormatter = DateTimeFormatter.ofPattern(FORMAT_YMD); return LocalDate.parse(str, dateTimeFormatter); } public static LocalDateTime asLocalDateTime(Date date) { return Instant.ofEpochMilli(date.getTime()).atZone(ZoneId.systemDefault()) .toLocalDateTime(); } public static String asStringByLocalDateTime(Date date) { return DateUtils .getStrDateTime(Instant.ofEpochMilli(date.getTime()).atZone(ZoneId.systemDefault()) .toLocalDateTime()); } public static String getStrTime(LocalDateTime date) { DateTimeFormatter df = DateTimeFormatter.ofPattern(FORMAT_YMDHMS_SSS); return df.format(date); } public static String getStrTime(LocalDateTime date, String fmt) { DateTimeFormatter df = DateTimeFormatter.ofPattern(fmt); return df.format(date); } public static String getStrDateTime(LocalDateTime date) { DateTimeFormatter df = DateTimeFormatter.ofPattern(FORMAT_YMDHMS_NOS); return df.format(date); } public static String getStrDateTimeStandard(LocalDateTime date) { DateTimeFormatter df = DateTimeFormatter.ofPattern(FORMAT_YMDHMS); return df.format(date); } public static String getStrDate(LocalDate date) { if (Objects.isNull(date)) { return ""; } DateTimeFormatter df = DateTimeFormatter.ofPattern(FORMAT_YMD); return df.format(date); } public static String getNowDateStr() { return getStrDate(LocalDate.now()); } public static String getNowDateStr(String format) { return getStrDate(LocalDate.now(), format); } public static Date strToDate(String time) { String date = time.replace("Z", " UTC");// 是空格+UTC Date dateTime = null; SimpleDateFormat format = new SimpleDateFormat("yyyy-MM-dd'T'HH:mm:ss.SSS Z");// 格式化的表达式 try { dateTime = format.parse(date); } catch (ParseException e) { e.printStackTrace(); } return dateTime; } /** * LocalDateTime转化时间戳 * * @param dateTime * @return */ public static long localDateTimeToTimestamp(LocalDateTime dateTime) { return dateTime.toInstant(ZoneOffset.of("+8")).toEpochMilli(); } public static long localDateTimeToTimestampSecond(LocalDateTime dateTime) { return dateTime.toInstant(ZoneOffset.of("+8")).toEpochMilli() / 1000; } public static long localDateToTimestamp(LocalDate date) { return date.atStartOfDay(ZoneOffset.ofHours(8)).toInstant().toEpochMilli(); } /** * 计算某天 到当前天的天数差 当前时间也计算 今天-今天 = 1（天） * * @param dateTime * @return */ public static Long betweenDateAndNow(LocalDateTime dateTime) { return LocalDate.now().toEpochDay() - dateTime.toLocalDate().toEpochDay() + 1; } public static Long betweenDateAndNow(LocalDate dateTime) { return LocalDate.now().toEpochDay() - dateTime.toEpochDay() + 1; } public static String getDateStr(String format) { DateTimeFormatter df = DateTimeFormatter.ofPattern(format); return df.format(LocalDateTime.now()); } /** * 输入1-7得到对应的中文星期转义 * * @param week 1~7, 1 - 星期一， 2 - 星期二， ... * @return 星期的中文 */ public static String getWeekZH(Integer week) { if (null == week || week <= 0 || week >= 8) { return ""; } String[] weekList = {"一", "二", "三", "四", "五", "六", "日"}; return "星期" + weekList[week - 1]; } /** * 输入一周的数字星期几 得到是否工作日 范围 1-7 * * @param day 1-7 * @return 是工作日：true 不是工作日：false 输入范围外的返回null */ public static Boolean checkIsWorkingDay(int day) { if (day >= 1 && day <= 7) { return day <= 5; } throw new CustomException("星期索引超界！"); } public static LocalDateTime getDateTimeOfTimestamp(long timestamp) { Instant instant = Instant.ofEpochMilli(timestamp); ZoneId zone = ZoneId.systemDefault(); return LocalDateTime.ofInstant(instant, zone); } public static LocalDateTime getDateTimeOfTimestamp1000(long timestamp) { int mul = 1000; Instant instant = Instant.ofEpochMilli(timestamp * mul); ZoneId zone = ZoneId.systemDefault(); return LocalDateTime.ofInstant(instant, zone); } /** * 格式化日期 * * @param date * @return String */ public static String getStrDate(LocalDate date, String fmt) { DateTimeFormatter df = DateTimeFormatter.ofPattern(fmt); return df.format(date); } /** * LocalDateTime 转 Local