import com.gexin.rp.sdk.base.uitls.StringUtils;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import java.text.ParseException;
import java.text.ParsePosition;
import java.text.SimpleDateFormat;
import java.time.*;
import java.time.format.DateTimeFormatter;
import java.time.temporal.TemporalAdjusters;
import java.util.*;
public class DateUtil {
private static final Logger logger = LoggerFactory.getLogger(DateUtil.class);
/**
* 获取给定日期的前一天时间
*
* @param date
* @return
*/
public static Date getBeforeDate(Date date) {
if (date != null) {
LocalDateTime localDateTime = LocalDateTime.ofInstant(date.toInstant(), ZoneId.systemDefault()).minusDays(1);
return Date.from(localDateTime.atZone(ZoneId.systemDefault()).toInstant());
}
return null;
}
/**
* 获取给定日期的前二天时间
*
* @param date
* @return
*/
public static Date getBeforeDate(Date date, int n) {
if (date != null) {
LocalDateTime localDateTime = LocalDateTime.ofInstant(date.toInstant(), ZoneId.systemDefault()).minusDays(n);
return Date.from(localDateTime.atZone(ZoneId.systemDefault()).toInstant());
}
return null;
}
/**
* 获取给定日期的后一天时间
*
* @param date
* @return
*/
public static Date getAfterDate(Date date) {
if (date != null) {
LocalDateTime localDateTime = LocalDateTime.ofInstant(date.toInstant(), ZoneId.systemDefault()).plusDays(1);
return Date.from(localDateTime.atZone(ZoneId.systemDefault()).toInstant());
}
return null;
}
public static Date getDateAfterDay(Date date, Integer days) {
if (date != null) {
LocalDateTime localDateTime = LocalDateTime.ofInstant(date.toInstant(), ZoneId.systemDefault()).plusDays(days);
return Date.from(localDateTime.atZone(ZoneId.systemDefault()).toInstant());
}
return null;
}
/**
* 获取给定日期的后2天时间
*
* @param date
* @return
*/
public static Date getAfterAfterDate(Date date) {
if (date != null) {
LocalDateTime localDateTime = LocalDateTime.ofInstant(date.toInstant(), ZoneId.systemDefault()).plusDays(2);
return Date.from(localDateTime.atZone(ZoneId.systemDefault()).toInstant());
}
return null;
}
/**
* 获取给定日期的上一周的同一天时间
*
* @param date
* @return
*/
public static Date getBeforeWeek(Date date) {
if (date != null) {
LocalDateTime localDateTime = LocalDateTime.ofInstant(date.toInstant(), ZoneId.systemDefault()).minusWeeks(1);
return Date.from(localDateTime.atZone(ZoneId.systemDefault()).toInstant());
}
return null;
}
/**
* 获取给定日期的下一周的同一天时间
*
* @param date
* @return
*/
public static Date getAfterWeek(Date date) {
if (date != null) {
LocalDateTime localDateTime = LocalDateTime.ofInstant(date.toInstant(), ZoneId.systemDefault()).plusWeeks(1);
return Date.from(localDateTime.atZone(ZoneId.systemDefault()).toInstant());
}
return null;
}
/**
* 获取给定日期的周一
*
* @param date
* @return
*/
public static Date getMondayOfWeek(Date date) {
if (date != null) {
LocalDateTime localDateTime = LocalDateTime.ofInstant(date.toInstant(), ZoneId.systemDefault()).with(DayOfWeek.MONDAY);
return Date.from(localDateTime.atZone(ZoneId.systemDefault()).toInstant());
}
return null;
}
/**
* 获取给定日期的周日
*
* @param date
* @return
*/
public static Date getSundayOfWeek(Date date) {
if (date != null) {
LocalDateTime localDateTime = LocalDateTime.ofInstant(date.toInstant(), ZoneId.systemDefault()).with(DayOfWeek.SUNDAY);
return Date.from(localDateTime.atZone(ZoneId.systemDefault()).toInstant());
}
return null;
}
/**
* 获取给定日期上个月的同一天
*
* @param date
* @return
*/
public static Date getBeforeMonth(Date date) {
if (date != null) {
LocalDateTime localDateTime = LocalDateTime.ofInstant(date.toInstant(), ZoneId.systemDefault()).minusMonths(1);
return Date.from(localDateTime.atZone(ZoneId.systemDefault()).toInstant());
}
return null;
}
/**
* 获取给定日期去年的同一天
*
* @param date
* @return
*/
public static Date getBeforeYear(Date date) {
if (date != null) {
LocalDateTime localDateTime = LocalDateTime.ofInstant(date.toInstant(), ZoneId.systemDefault()).minusMonths(12);
return Date.from(localDateTime.atZone(ZoneId.systemDefault()).toInstant());
}
return null;
}
/**
* 获取给定日期的下个月的同一天
*
* @param date
* @return
*/
public static Date getAfterMonth(Date date) {
if (date != null) {
LocalDateTime localDateTime = LocalDateTime.ofInstant(date.toInstant(), ZoneId.systemDefault()).plusMonths(1);
return Date.from(localDateTime.atZone(ZoneId.systemDefault()).toInstant());
}
return null;
}
/**
* 获取给定日期的所在月的第一天
*
* @param date
* @return
*/
public static Date getFirstDayOfMonth(Date date) {
if (date != null) {
LocalDateTime localDateTime = LocalDateTime.ofInstant(date.toInstant(), ZoneId.systemDefault()).with(TemporalAdjusters.firstDayOfMonth());
return Date.from(localDateTime.atZone(ZoneId.systemDefault()).toInstant());
}
return null;
}
/**
* 获取给定日期的所在月的最后一天
*
* @param date
* @return
*/
public static Date getLastDayOfMonth(Date date) {
if (date != null) {
LocalDateTime localDateTime = LocalDateTime.ofInstant(date.toInstant(), ZoneId.systemDefault()).with(TemporalAdjusters.lastDayOfMonth());
return Date.from(localDateTime.atZone(ZoneId.systemDefault()).toInstant());
}
return null;
}
/**
* 给定日期转指定格式字符串
*
* @param date
* @param format
* @return
*/
public static String dateToFormatString(Date date, String format) {
if (date != null) {
try {
return LocalDateTime.ofInstant(date.toInstant(), ZoneId.systemDefault()).format(DateTimeFormatter.ofPattern(format));
} catch (Exception e) {
e.printStackTrace();
logger.error(e.getMessage());
}
}
return null;
}
/**
* 给定字符串转指定日期
*
* @param dateStr
* @param format
* @return
*/
public static Date stringToFormatDate(String dateStr, String format) {
if (dateStr != null) {
SimpleDateFormat sDateFormat = new SimpleDateFormat(format);
Date date = null;
try {
date = sDateFormat.parse(dateStr);
} catch (ParseException px) {
px.printStackTrace();
}
return date;
}
return null;
}
/**
* 获取给定时间的年份
*
* @param date
* @return
*/
public static Integer getDateYear(Date date) {
if (date != null) {
return LocalDateTime.ofInstant(date.toInstant(), ZoneId.systemDefault()).getYear();
}
return null;
}
/**
* 获取给定时间的月份
*
* @param date
* @return
*/
public static Integer getDateMonth(Date date) {
if (date != null) {
return LocalDateTime.ofInstant(date.toInstant(), ZoneId.systemDefault()).getMonthValue();
}
return null;
}
/**
* 获取给定时间的月份 共两位，位数不足补零
*
* @param date
* @return
*/
public static String getDateMonthString(Date date) {
if (date != null) {
return String.format("%02d", LocalDateTime.ofInstant(date.toInstant(), ZoneId.systemDefault()).getMonthValue());
}
return null;
}
/**
* 获取给定时间的周的第几天
*
* @param date
* @return
*/
public static Integer getDayOfWeekByDate(Date date) {
if (date != null) {
return LocalDateTime.ofInstant(date.toInstant(), ZoneId.systemDefault()).getDayOfWeek().getValue();
}
return null;
}
/**
* 获取给定时间的月的第几天
*
* @param date
* @return
*/
public static Integer getDayOfMonthByDate(Date date) {
if (date != null) {
return LocalDateTime.ofInstant(date.toInstant(), ZoneId.systemDefault()).getDayOfMonth();
}
return null;
}
/**
* 获取给定时间的月的第几天 共两位，位数不足补零
*
* @param date
* @return
*/
public static String getDateString(Date date) {
if (date != null) {
return String.format("%02d", getDayOfMonthByDate(date));
}
return null;
}
/**
* 获取给定时间年的第几天
*
* @param date
* @return
*/
public static Integer getDayOfYearByDate(Date date) {
if (date != null) {
return LocalDateTime.ofInstant(date.toInstant(), ZoneId.systemDefault()).getDayOfYear();
}
return null;
}
/**
* 获取下一年的今天的时间戳
*
* @return
*/
public static Date getLastYearDate() {
Calendar curr = Calendar.getInstance();
curr.set(Calendar.YEAR, curr.get(Calendar.YEAR) + 1);
return curr.getTime();
}
public static Date getDate(String date) {
SimpleDateFormat formatter = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
ParsePosition pos = new ParsePosition(0);
Date str2date = formatter.parse(date, pos);
return str2date;
}
/**
* 获取指定时间的当天起始时间
*
* @param date
* @return
*/
public static Date getDayStartTime(Date date) {
if (date == null) {
return null;
}
Calendar calendar = new GregorianCalendar();
calendar.setTime(date);
calendar.set(Calendar.HOUR_OF_DAY, 0);
calendar.set(Calendar.MINUTE, 0);
calendar.set(Calendar.SECOND, 0);
calendar.set(Calendar.MILLISECOND, 0);
return calendar.getTime();
}
/**
* 获取指定时间的当天起始时间
*
* @param date
* @return
*/
public static Date getDayEndTime(Date date) {
if (date == null) {
return null;
}
Calendar calendar = new GregorianCalendar();
calendar.setTime(date);
calendar.set(Calendar.HOUR_OF_DAY, 23);
calendar.set(Calendar.MINUTE, 59);
calendar.set(Calendar.SECOND, 59);
return calendar.getTime();
}
/**
* 获取指定时间的当天起始时间
*
* @param date
* @return
*/
public static Date getDayEndTime2(Date date) {
if (date == null) {
return null;
}
Calendar calendar = new GregorianCalendar();
calendar.setTime(date);
calendar.set(Calendar.HOUR_OF_DAY, 23);
calendar.set(Calendar.MINUTE, 59);
calendar.set(Calendar.SECOND, 59);
calendar.set(Calendar.MILLISECOND, 999);
return calendar.getTime();
}
/**
* 获取当前时间的前多少分钟
*/
public static Date getBeforeMinutes(int n) {
Calendar beforeTime = Calendar.getInstance();
beforeTime.add(Calendar.MINUTE, -n);// 3分钟之前的时间
Date beforeD = beforeTime.getTime();
return beforeD;
}
/**
* 获取当前日期到第二天0点的秒数
*
* @return
*/
public static Long getSecondsNextEarlyMorning() {
Calendar cal = Calendar.getInstance();
cal.add(Calendar.DAY_OF_YEAR, 1);
cal.set(Calendar.HOUR_OF_DAY, 0);
cal.set(Calendar.SECOND, 0);
cal.set(Calendar.MINUTE, 0);
cal.set(Calendar.MILLISECOND, 0);
return (cal.getTimeInMillis() - System.currentTimeMillis()) / 1000;
}
/***
* 获取当前年的第几周
* @param date
* @return
*/
public static String getWeekOfYear(Date date, int weekStart) {
WeekInfo weekInfo = getWeekInfo(date, weekStart);
return weekInfo.getYearWeek();
}
/***
* 取得季度 包含年份
* @param date
* @return
*/
public static String getQuarter(Date date) {
int season = 0;
Calendar c = Calendar.getInstance();
c.setTime(date);
int month = c.get(Calendar.MONTH);
switch (month) {
case Calendar.JANUARY:
case Calendar.FEBRUARY:
case Calendar.MARCH:
season = 1;
break;
case Calendar.APRIL:
case Calendar.MAY:
case Calendar.JUNE:
season = 2;
break;
case Calendar.JULY:
case Calendar.AUGUST:
case Calendar.SEPTEMBER:
season = 3;
break;
case Calendar.OCTOBER:
case Calendar.NOVEMBER:
case Calendar.DECEMBER:
season = 4;
break;
default:
break;
}
int year = c.get(Calendar.YEAR);
return "" + year + "0" + season;
}
public static Date getFirstDayOfYear(Date date) {
if (date != null) {
LocalDateTime localDateTime = LocalDateTime.ofInstant(date.toInstant(), ZoneId.systemDefault()).with(TemporalAdjusters.firstDayOfYear());
return Date.from(localDateTime.atZone(ZoneId.systemDefault()).toInstant());
}
return null;
}
public static Date getLastDayOfYear(Date date) {
if (date != null) {
LocalDateTime localDateTime = LocalDateTime.ofInstant(date.toInstant(), ZoneId.systemDefault()).with(TemporalAdjusters.lastDayOfYear());
return Date.from(localDateTime.atZone(ZoneId.systemDefault()).toInstant());
}
return null;
}
/***
* 获取季度的第一天
* @param date
* @return
*/
public static Date getFirstDayOfQuarter(Date date) {
LocalDateTime localDateTime = LocalDateTime.ofInstant(date.toInstant(), ZoneId.systemDefault());
int month = localDateTime.getMonth().getValue();//当月
int start = 0;
if (month >= 1 && month <= 3) {//第一季度
start = 1;
} else if (month >= 4 && month <= 6) {//第二季度
start = 4;
} else if (month >= 7 && month <= 9) {//第三季度
start = 7;
} else if ((month >= 10 && month <= 12)) {//第四季度
start = 10;
}
LocalDateTime localDateTime2 = localDateTime.plusMonths(start - month).with(TemporalAdjusters.firstDayOfMonth());
return Date.from(localDateTime2.atZone(ZoneId.systemDefault()).toInstant());
}
/***
* 获取季度的最后一天
* @param date
* @return
*/
public static Date getLastDayOfQuarter(Date date) {
LocalDateTime localDateTime = LocalDateTime.ofInstant(date.toInstant(), ZoneId.systemDefault());
int month = localDateTime.getMonth().getValue();//当月
int start = 0;
if (month >= 1 && month <= 3) {//第一季度
start = 3;
} else if (month >= 4 && month <= 6) {//第二季度
start = 6;
} else if (month >= 7 && month <= 9) {//第三季度
start = 9;
} else if ((month >= 10 && month <= 12)) {//第四季度
start = 12;
}
LocalDateTime localDateTime2 = localDateTime.plusMonths(start - month).with(TemporalAdjusters.lastDayOfMonth());
return Date.from(localDateTime2.atZone(ZoneId.systemDefault()).toInstant());
}
/**
* 获取当前时间属于星期几
* <p>
* 每日一袋业务使用
* ---by anpeiyong 2019-12-11
* <p>
* 1：星期一、2：星期二、3:星期三、4：星期四、5：星期五、6：星期六、7：星期日
*
* @param date
* @return
*/
public static int getCurrentTimeBelongToWhichWeek(Date date) {
int[] weekDays = {7, 1, 2, 3, 4, 5, 6};
Calendar cal = Calendar.getInstance();
cal.setTime(date);
int w = cal.get(Calendar.DAY_OF_WEEK) - 1;
if (w < 0)
w = 0;
return weekDays[w];
}
/**
* 获取当前时间的后多少秒
*/
public static Date getAfterSeconds(int seconds) {
Calendar calendar = Calendar.getInstance();
calendar.add(Calendar.SECOND, seconds);
return calendar.getTime();
}
public static Date getDateByDateTime(Date date) {
Calendar cal = Calendar.getInstance();
cal.setTime(date);
// 将时分秒,毫秒域清零
cal.set(Calendar.HOUR_OF_DAY, 0);
cal.set(Calendar.MINUTE, 0);
cal.set(Calendar.SECOND, 0);
cal.set(Calendar.MILLISECOND, 0);
return cal.getTime();
}
public static Date getWeekLastDayByFormat(String yearAndWeek) {
try {
int year = Integer.valueOf(yearAndWeek.substring(0, 4));
String weekStr = yearAndWeek.substring(4);
int week = weekStr.startsWith("0") ? Integer.valueOf(weekStr.substring(1)) : Integer.valueOf(weekStr);
Calendar cal = Calendar.getInstance();
cal.setFirstDayOfWeek(Calendar.SUNDAY);
cal.set(Calendar.YEAR, year);
cal.set(Calendar.WEEK_OF_YEAR, week);
cal.set(Calendar.DAY_OF_WEEK, cal.getFirstDayOfWeek());
cal.add(Calendar.DAY_OF_WEEK, 6);
Date lastTime = cal.getTime();
return lastTime;
} catch (Exception e) {
return null;
}
}
public static Date getMonthLastDayByFormat(String yearAndMonth) {
try {
Date date = stringToFormatDate(yearAndMonth, "yyyyMM");
return getLastDayOfMonth(date);
} catch (Exception e) {
return null;
}
}
public static Date getQuarterLastDayByFormat(String yearAndQuearter) {
try {
String year = yearAndQuearter.substring(0, 4);
String quarterStr = yearAndQuearter.substring(4);
int quarter = quarterStr.startsWith("0") ? Integer.valueOf(quarterStr.substring(1)) : Integer.valueOf(quarterStr);
if (quarter == 1) {
return getMonthLastDayByFormat(year + "03");
} else if (quarter == 2) {
return getMonthLastDayByFormat(year + "06");
} else if (quarter == 3) {
return getMonthLastDayByFormat(year + "09");
} else if (quarter == 4) {
return getMonthLastDayByFormat(year + "12");
}
} catch (Exception e) {
}
return null;
}
public static Date getYearLastDayByFormat(String year) {
try {
return getLastDayOfYear(stringToFormatDate(year, "yyyy"));
} catch (Exception e) {
return null;
}
}
public static WeekInfo getWeekInfo(Date date, int weekStart) {
WeekInfo weekInfo = new WeekInfo();
weekInfo.setWeekStart(weekStart);
/*计算年周*/
Calendar calendar = getCalendar(date, weekStart);
int weekOfYear = calendar.get(Calendar.WEEK_OF_YEAR);//获得当前日期属于今年的第几周
int currentYear = calendar.get(Calendar.YEAR);
/*这里是防止出现周和年不对应的情况 比如2018年12月31日*/
calendar.add(Calendar.DAY_OF_MONTH, 6);
int weekYearByAfter7 = calendar.get(Calendar.YEAR);//6天之后的年份
if (weekYearByAfter7 > currentYear && weekOfYear == 1) {
currentYear += 1;
}
if (weekOfYear < 10) {
weekInfo.setYearWeek("" + currentYear + "0" + weekOfYear);
} else {
weekInfo.setYearWeek("" + currentYear + weekOfYear);
}
//计算周开始时间和周结束时间
Calendar cal = getCalendar(date, weekStart);
int day = cal.get(Calendar.DAY_OF_WEEK) - 1;// 获得当前日期是一个星期的第几天
if (day == 0) {
day = 7;
}
if (weekStart <= day) {
cal.add(Calendar.DATE, weekStart - day);
} else {
cal.add(Calendar.DATE, weekStart - day - 7);
}
weekInfo.setWeekStartTime(getDayStartTime(cal.getTime()));
cal.add(Calendar.DAY_OF_YEAR, 6);
weekInfo.setWeekEndTime(cal.getTime());
return weekInfo;
}
private static Calendar getCalendar(Date date, int weekStart) {
Calendar calendar = Calendar.getInstance();
calendar.setTime(date);
calendar.setMinimalDaysInFirstWeek(1);
if (weekStart == 7) {
calendar.setFirstDayOfWeek(Calendar.SUNDAY);//星期天为第一天
} else {
calendar.setFirstDayOfWeek(weekStart + 1);//星期一到星期五
}
return calendar;
}
public static int daysBetween(Date smdate, Date bdate) throws ParseException {
SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd");
smdate = sdf.parse(sdf.format(smdate));
bdate = sdf.parse(sdf.format(bdate));
Calendar cal = Calendar.getInstance();
cal.setTime(smdate);
long time1 = cal.getTimeInMillis();
cal.setTime(bdate);
long time2 = cal.getTimeInMillis();
long between_days = (time2 - time1) / (1000 * 3600 * 24);
return Integer.parseInt(String.valueOf(between_days));
}
/**
* 获取指定时间的当月的天数
*
* @param date
* @return
*/
public static int getDaysOfMonth(Date date) {
Calendar calendar = new GregorianCalendar();
calendar.setTime(date);
calendar.set(Calendar.DATE, 1);
calendar.roll(Calendar.DATE, -1);
return calendar.get(Calendar.DATE);
}
/***
* 获取最近的天
* @param dayCount
* @return
*/
public static List<String> getLastDayList(int dayCount) {
Calendar cal = Calendar.getInstance();
cal.add(Calendar.DAY_OF_YEAR, -dayCount);
SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd");
List<String> list = new ArrayList<>();
for (int i = 0; i < dayCount; i++) {
list.add(sdf.format(cal.getTime()));
cal.add(Calendar.DAY_OF_YEAR, 1);
}
return list;
}
/***
* 获取最近的月
* @param dayCount
* @return
*/
public static List<String> getLastMonthList(int dayCount) {
Calendar cal = Calendar.getInstance();
cal.add(Calendar.MONTH, -dayCount);
SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM");
List<String> list = new ArrayList<>();
for (int i = 0; i < dayCount; i++) {
list.add(sdf.format(cal.getTime()));
cal.add(Calendar.MONTH, 1);
}
return list;
}
/**
* 根据第几周的获取时间
*
* @param year 年份
* @param weekNum 第几周
* @param weekStart 从周几开始算一周
* @param dayNum 周的第几天
* @return
*/
public static Date getDateByWeekNum(int year, int weekNum, int weekStart, int dayNum) {
Calendar cal = Calendar.getInstance();
// 保证是0点0分0秒
cal.setTimeInMillis(-28800000);
cal.set(Calendar.YEAR, year);
if (weekStart == 7) {
cal.setFirstDayOfWeek(Calendar.SUNDAY);//星期天为第一天
} else {
cal.setFirstDayOfWeek(weekStart + 1);//星期一到星期五
}
cal.set(Calendar.WEEK_OF_YEAR, weekNum);
int weekDay = cal.getFirstDayOfWeek() + dayNum - 1;
if (weekDay > 7) {
weekDay = weekDay - 7;
}
cal.set(Calendar.DAY_OF_WEEK, weekDay);
return cal.getTime();
}
public static Integer getMonthSecond() {
Calendar c = Calendar.getInstance();
int d = c.getActualMaximum(Calendar.DAY_OF_MONTH);//获得月底日期
int nowDay = c.get(Calendar.DAY_OF_MONTH);//获得当前天
Date nowdate = new Date();
SimpleDateFormat sdf = new SimpleDateFormat("HHmmss");
String dateNowStr = sdf.format(nowdate);
int now = Integer.parseInt(dateNowStr);//获得当前时分秒（去首零）
return (d - nowDay) * 24 * 60 * 60 + 235959 - now;
}
/**
* <p>Compares two <code>dates</code> for order.</p>
*
* <p>This method is more comprehensive than the standard Java equals operators.</p>
* <ul>
* <li>It returns <code>true</code> if the first value's year and month is equal to the second.</li>
* <li>It returns <code>false</code> if the first value's year and month is not equal to the second.</li>
* </ul>
*
* @param lhs the first <code>Date</code>
* @param rhs the second <code>Date</code>
* @return <code>false</code> if not equal to lhs
* <code>true</code> if equal to rhs
*/
public static boolean compareYearAndMonth(Date lhs,Date rhs){
if(Objects.isNull(lhs) || Objects.isNull(rhs)){
return false;
}
ZonedDateTime lzonedDateTime = ZonedDateTime.ofInstant(lhs.toInstant(), ZoneId.systemDefault());
ZonedDateTime hzonedDateTime = ZonedDateTime.ofInstant(rhs.toInstant(), ZoneId.systemDefault());
if(lzonedDateTime.getYear() == hzonedDateTime.getYear() && lzonedDateTime.getMonthValue() == hzonedDateTime.getMonthValue()){
return true;
}
return false;
}
/**
* java8(经测试别的版本获取2月有bug) 获取某月第一天的00:00:00
* @return
*/
public static String getFirstDayOfMonth(String datestr){
if (StringUtils.isBlank(datestr)) return null;
SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
Date date = strToDateNotDD(datestr);
LocalDateTime localDateTime = LocalDateTime.ofInstant(Instant.ofEpochMilli(date.getTime()), ZoneId.systemDefault());;
LocalDateTime endOfDay = localDateTime.with(TemporalAdjusters.firstDayOfMonth()).with(LocalTime.MIN);
Date dates = Date.from(endOfDay.atZone(ZoneId.systemDefault()).toInstant());
return sdf.format(dates);
}
/**
* java8(别的版本获取2月有bug) 获取某月最后一天的23:59:59
* @return
*/
public static String getLastDayOfMonth(String datestr){
if (StringUtils.isBlank(datestr)) return null;
SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
Date date = strToDateNotDD(datestr);
LocalDateTime localDateTime = LocalDateTime.ofInstant(Instant.ofEpochMilli(date.getTime()), ZoneId.systemDefault());;
LocalDateTime endOfDay = localDateTime.with(TemporalAdjusters.lastDayOfMonth()).with(LocalTime.MAX);
Date dates = Date.from(endOfDay.atZone(ZoneId.systemDefault()).toInstant());
return sdf.format(dates);
}
/**
* 将短时间格式字符串转换为时间 yyyy-MM( 2017-02)
* @param strDate
* @return
*/
public static Date strToDateNotDD(String strDate) {
if (StringUtils.isBlank(strDate)) return null;
SimpleDateFormat formatter = new SimpleDateFormat("yyyy-MM");
ParsePosition pos = new ParsePosition(0);
Date strtodate = formatter.parse(strDate, pos);
return strtodate;
}
}