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package com.os.common.utils;
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import java.lang.management.ManagementFactory;
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import java.text.ParseException;
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import java.text.SimpleDateFormat;
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import java.time.LocalDate;
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import java.time.LocalDateTime;
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import java.time.LocalTime;
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import java.time.ZoneId;
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import java.time.ZonedDateTime;
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import java.time.format.DateTimeFormatter;
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import java.time.temporal.ChronoUnit;
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import java.util.*;
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import org.apache.commons.lang3.time.DateFormatUtils;
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import static org.hibernate.validator.internal.engine.messageinterpolation.el.RootResolver.FORMATTER;
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/**
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* 时间工具类
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*
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* @author ruoyi
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*/
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public class DateUtils extends org.apache.commons.lang3.time.DateUtils
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{
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public static String YYYY = "yyyy";
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public static String YYYY_MM = "yyyy-MM";
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public static String YYYY_MM_DD = "yyyy-MM-dd";
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public static String YYYYMMDDHHMMSS = "yyyyMMddHHmmss";
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public static String YYYY_MM_DD_HH_MM_SS = "yyyy-MM-dd HH:mm:ss";
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public static String[] parsePatterns = {
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"yyyy-MM-dd", "yyyy-MM-dd HH:mm:ss", "yyyy-MM-dd HH:mm", "yyyy-MM",
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"yyyy/MM/dd", "yyyy/MM/dd HH:mm:ss", "yyyy/MM/dd HH:mm", "yyyy/MM",
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"yyyy.MM.dd", "yyyy.MM.dd HH:mm:ss", "yyyy.MM.dd HH:mm", "yyyy.MM"};
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/**
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* 获取当前Date型日期
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*
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* @return Date() 当前日期
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*/
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public static Date getNowDate()
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{
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return new Date();
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}
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/**
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* 获取当前日期, 默认格式为yyyy-MM-dd
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*
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* @return String
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*/
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public static String getDate()
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{
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return dateTimeNow(YYYY_MM_DD);
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}
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public static final String getTime()
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{
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return dateTimeNow(YYYY_MM_DD_HH_MM_SS);
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}
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public static final String dateTimeNow()
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{
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return dateTimeNow(YYYYMMDDHHMMSS);
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}
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public static final String dateTimeNow(final String format)
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{
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return parseDateToStr(format, new Date());
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}
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public static final String dateTime(final Date date)
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{
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return parseDateToStr(YYYY_MM_DD, date);
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}
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public static final String parseDateToStr(final String format, final Date date)
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{
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return new SimpleDateFormat(format).format(date);
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}
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public static final Date dateTime(final String format, final String ts)
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{
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try
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{
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return new SimpleDateFormat(format).parse(ts);
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}
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catch (ParseException e)
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{
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throw new RuntimeException(e);
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}
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}
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/**
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* 日期路径 即年/月/日 如2018/08/08
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*/
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public static final String datePath()
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{
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Date now = new Date();
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return DateFormatUtils.format(now, "yyyy/MM/dd");
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}
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/**
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* 日期路径 即年/月/日 如20180808
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*/
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public static final String dateTime()
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{
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Date now = new Date();
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return DateFormatUtils.format(now, "yyyyMMdd");
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}
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/**
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* 日期型字符串转化为日期 格式
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*/
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public static Date parseDate(Object str)
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{
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if (str == null)
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{
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return null;
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}
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try
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{
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return parseDate(str.toString(), parsePatterns);
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}
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catch (ParseException e)
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{
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return null;
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}
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}
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/**
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* 获取服务器启动时间
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*/
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public static Date getServerStartDate()
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{
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long time = ManagementFactory.getRuntimeMXBean().getStartTime();
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return new Date(time);
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}
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/**
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* 计算相差天数
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*/
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public static int differentDaysByMillisecond(Date date1, Date date2)
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{
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return Math.abs((int) ((date2.getTime() - date1.getTime()) / (1000 * 3600 * 24)));
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}
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/**
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* 计算时间差
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*
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* @param endDate 最后时间
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* @param startTime 开始时间
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* @return 时间差（天/小时/分钟）
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*/
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public static String timeDistance(Date endDate, Date startTime)
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{
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long nd = 1000 * 24 * 60 * 60;
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long nh = 1000 * 60 * 60;
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long nm = 1000 * 60;
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// long ns = 1000;
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// 获得两个时间的毫秒时间差异
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long diff = endDate.getTime() - startTime.getTime();
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// 计算差多少天
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long day = diff / nd;
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// 计算差多少小时
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long hour = diff % nd / nh;
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// 计算差多少分钟
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long min = diff % nd % nh / nm;
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// 计算差多少秒//输出结果
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// long sec = diff % nd % nh % nm / ns;
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return day + "天" + hour + "小时" + min + "分钟";
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}
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/**
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* 增加 LocalDateTime ==> Date
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*/
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public static Date toDate(LocalDateTime temporalAccessor)
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{
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ZonedDateTime zdt = temporalAccessor.atZone(ZoneId.systemDefault());
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return Date.from(zdt.toInstant());
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}
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/**
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* 增加 LocalDate ==> Date
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*/
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public static Date toDate(LocalDate temporalAccessor)
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{
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LocalDateTime localDateTime = LocalDateTime.of(temporalAccessor, LocalTime.of(0, 0, 0));
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ZonedDateTime zdt = localDateTime.atZone(ZoneId.systemDefault());
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return Date.from(zdt.toInstant());
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}
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/**
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* 生成两个日期之间的每个时间点（支持小时、日、月、年）
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* 假设：输入格式与粒度匹配：
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* HOURS -> yyyy-MM-dd HH:mm:ss
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* DAYS -> yyyy-MM-dd
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* MONTHS -> yyyy-MM
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* YEARS -> yyyy
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*
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* @param startDateStr 开始时间字符串
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* @param endDateStr 结束时间字符串
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* @param unit 时间粒度（支持 HOURS, DAYS, MONTHS, YEARS）
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*/
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public static List<String> getTimeIntervals(String startDateStr, String endDateStr, String unit) {
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String pattern;
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int calendarField;
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switch (unit) {
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case "19":
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pattern = "yyyy-MM-dd HH:mm:ss";
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calendarField = Calendar.HOUR_OF_DAY;
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break;
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case "10":
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pattern = "yyyy-MM-dd";
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calendarField = Calendar.DAY_OF_MONTH;
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break;
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case "7":
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pattern = "yyyy-MM";
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calendarField = Calendar.MONTH;
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break;
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case "4":
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pattern = "yyyy";
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calendarField = Calendar.YEAR;
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break;
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default:
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throw new IllegalArgumentException("Unsupported unit: " + unit);
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}
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SimpleDateFormat sdf = new SimpleDateFormat(pattern);
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List<String> intervals = new ArrayList<>();
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try {
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Calendar start = Calendar.getInstance();
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start.setTime(sdf.parse(startDateStr));
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Calendar end = Calendar.getInstance();
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end.setTime(sdf.parse(endDateStr));
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while (!start.after(end)) {
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intervals.add(sdf.format(start.getTime()));
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start.add(calendarField, 1);
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}
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} catch (ParseException e) {
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throw new RuntimeException("日期解析失败: " + e.getMessage(), e);
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}
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return intervals;
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}
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/**
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* 获取时间范围信息
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* @return 包含各种时间范围的Map
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*/
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public static Map<String, String> getDateTimeRanges() {
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Map<String, String> timeMap = new HashMap<>();
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String nowDateTime = LocalDateTime.now()
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.withMinute(0)
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.withSecond(0)
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.format(DateTimeFormatter.ofPattern("yyyy-MM-dd HH:00:00"));
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//当前时间
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timeMap.put("currentTime", nowDateTime);
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String lastYearDateTime = LocalDateTime.now()
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.minusYears(1) // 关键修改：减去1年
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.withMinute(0)
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.withSecond(0)
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.withNano(0)
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.format(DateTimeFormatter.ofPattern("yyyy-MM-dd HH:00:00"));
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timeMap.put("lastYearCurrentTime", lastYearDateTime);
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DateTimeFormatter formatter = DateTimeFormatter.ofPattern("yyyy-MM-dd HH:mm:ss");
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LocalDateTime now = LocalDateTime.now();
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// 当天开始时间 (00:00:00)
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LocalDateTime todayStart = now.toLocalDate().atStartOfDay();
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timeMap.put("todayStart", todayStart.format(formatter));
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// 当月开始时间 (当月1日 00:00:00)
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LocalDateTime monthStart = now.withDayOfMonth(1).toLocalDate().atStartOfDay();
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timeMap.put("monthStart", monthStart.format(formatter));
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// 当年开始时间 (当年1月1日 00:00:00)
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LocalDateTime yearStart = now.withDayOfYear(1).toLocalDate().atStartOfDay();
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timeMap.put("yearStart", yearStart.format(formatter));
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// 去年当天开始时间
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LocalDateTime lastYearTodayStart = todayStart.minusYears(1);
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timeMap.put("lastYearTodayStart", lastYearTodayStart.format(formatter));
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// 去年当月开始时间
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LocalDateTime lastYearMonthStart = monthStart.minusYears(1);
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timeMap.put("lastYearMonthStart", lastYearMonthStart.format(formatter));
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// 去年当年开始时间
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LocalDateTime lastYearYearStart = yearStart.minusYears(1);
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timeMap.put("lastYearYearStart", lastYearYearStart.format(formatter));
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return timeMap;
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}
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/**
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* 获取去年同时间的日期字符串
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* @param dateTimeStr 格式必须为 "yyyy-MM-dd HH:mm:ss"
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* @return 去年同时间的字符串，格式相同
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*/
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public static String getLastYearDateTime(String dateTimeStr) {
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// 定义日期时间格式
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DateTimeFormatter formatter = DateTimeFormatter.ofPattern("yyyy-MM-dd HH:mm:ss");
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// 解析字符串为 LocalDateTime
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LocalDateTime dateTime = LocalDateTime.parse(dateTimeStr, formatter);
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// 减去一年
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LocalDateTime lastYearDateTime = dateTime.minusYears(1);
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// 格式化为字符串返回
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return lastYearDateTime.format(formatter);
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}
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}
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