/**
* 此工具类包含了基本上常用的工具类,包含对于各种类型的日期的转换,以及转成我们所需要的各种类型日期格式。
*/
public class DateUtils {
/**
* 仅显示年月日,例如 2015-08-11.
*/
public static final String DATE_FORMAT = "yyyy-MM-dd";
/**
* 显示年月日时分秒,例如 2015-08-11 09:51:53.
*/
public static final String DATETIME_FORMAT = "yyyy-MM-dd HH:mm:ss";
/**
* 仅显示时分秒,例如 09:51:53.
*/
public static final String TIME_FORMAT = "HH:mm:ss";
/**
* 仅显示年月,例如 2015-08
*/
public static final String MONTH_TIME_PATTERN = "yyyy-MM";
/**
* 仅显示年,例如 2015
*/
public static final String YEAR_TIME_PATTERN = "yyyy";
/**
* 每天的毫秒数 8640000.
*/
public static final long MILLISECONDS_PER_DAY = 86400000L;
/**
* 每周的天数.
*/
public static final long DAYS_PER_WEEK = 7L;
/**
* 每小时毫秒数.
*/
public static final long MILLISECONDS_PER_HOUR = 3600000L;
/**
* 每分钟秒数.
*/
public static final long SECONDS_PER_MINUTE = 60L;
/**
* 每小时秒数.
*/
public static final long SECONDS_PER_HOUR = 3600L;
/**
* 每天秒数.
*/
public static final long SECONDS_PER_DAY = 86400L;
/**
* 每个月秒数,默认每月30天.
*/
public static final long SECONDS_PER_MONTH = 2592000L;
/**
* 每年秒数,默认每年365天.
*/
public static final long SECONDS_PER_YEAR = 31536000L;
/**
* 常用的时间格式.
*/
private static String[] parsePatterns = {"yyyy-MM-dd", "yyyy-MM-dd HH:mm:ss", "yyyy-MM-dd HH:mm", "yyyy/MM/dd",
"yyyy/MM/dd HH:mm:ss", "yyyy/MM/dd HH:mm"};
/**
* 得到当前日期字符串.
*
* @return String 日期字符串,例如2015-08-11
* @since 1.0
*/
public static String getDate() {
return getDate(DateUtils.DATE_FORMAT);
}
/**
* 得到当前时间字符串.
*
* @return String 时间字符串,例如 09:51:53
* @since 1.0
*/
public static String getTime() {
return formatDate(new Date(), DateUtils.TIME_FORMAT);
}
/**
* 得到当前日期和时间字符串.
*
* @return String 日期和时间字符串,例如 2015-08-11 09:51:53
* @since 1.0
*/
public static String getDateTime() {
return formatDate(new Date(), DateUtils.DATETIME_FORMAT);
}
/**
* 获取当前时间指定格式下的字符串.
*
* @param pattern 转化后时间展示的格式,例如"yyyy-MM-dd","yyyy-MM-dd HH:mm:ss"等
* @return String 格式转换之后的时间字符串.
* @since 1.0
*/
public static String getDate(String pattern) {
return DateFormatUtils.format(new Date(), pattern);
}
/**
* 获取指定日期的字符串格式.
*
* @param date 需要格式化的时间,不能为空
* @param pattern 时间格式,例如"yyyy-MM-dd","yyyy-MM-dd HH:mm:ss"等
* @return String 格式转换之后的时间字符串.
* @since 1.0
*/
public static String getDate(Date date, String pattern) {
return DateFormatUtils.format(date, pattern);
}
/**
* 获取日期时间字符串,默认格式为(yyyy-MM-dd).
*
* @param date 需要转化的日期时间
* @param pattern 时间格式,例如"yyyy-MM-dd" "HH:mm:ss" "E"等
* @return String 格式转换后的时间字符串
* @since 1.0
*/
public static String formatDate(Date date, Object... pattern) {
String formatDate = null;
if (pattern != null && pattern.length > 0) {
formatDate = DateFormatUtils.format(date, pattern[0].toString());
} else {
formatDate = DateFormatUtils.format(date, DateUtils.DATE_FORMAT);
}
return formatDate;
}
/**
* 获取当前年份字符串.
*
* @return String 当前年份字符串,例如 2015
* @since 1.0
*/
public static String getYear() {
return formatDate(new Date(), "yyyy");
}
/**
* 获取当前月份字符串.
*
* @return String 当前月份字符串,例如 08
* @since 1.0
*/
public static String getMonth() {
return formatDate(new Date(), "MM");
}
/**
* 获取当前天数字符串.
*
* @return String 当前天数字符串,例如 11
* @since 1.0
*/
public static String getDay() {
return formatDate(new Date(), "dd");
}
/**
* 获取当前星期字符串.
*
* @return String 当前星期字符串,例如星期二
* @since 1.0
*/
public static String getWeek() {
return formatDate(new Date(), "E");
}
/**
* 将日期型字符串转换为日期格式. 支持的日期字符串格式包括"yyyy-MM-dd","yyyy-MM-dd HH:mm:ss", "yyyy-MM-dd HH:mm", "yyyy/MM/dd", "yyyy/MM/dd
* HH:mm:ss", "yyyy/MM/dd HH:mm"
*
* @param str
* @return Date
* @since 1.0
*/
public static Date parseDate(Object str) {
if (str == null) {
return null;
}
try {
return org.apache.commons.lang3.time.DateUtils.parseDate(str.toString(), parsePatterns);
} catch (ParseException e) {
return null;
}
}
/**
* 使用参数Format将字符串转为Date
*/
public static Date parse(String strDate, String pattern) {
Date d = null;
SimpleDateFormat df = new SimpleDateFormat(pattern);
try {
d = df.parse(strDate);
} catch (Exception e) {
e.printStackTrace();
}
return d;
}
/**
* 获取当前日期与指定日期相隔的天数.
*
* @param date 给定的日期
* @return long 日期间隔天数,正数表示给定日期在当前日期之前,负数表示在当前日期之后
* @since 1.0
*/
public static long pastDays(Date date) {
// 将指定日期转换为yyyy-MM-dd格式
date = DateUtils.parseDate(DateUtils.formatDate(date, DateUtils.DATE_FORMAT));
// 当前日期转换为yyyy-MM-dd格式
Date currentDate = DateUtils.parseDate(DateUtils.formatDate(new Date(), DateUtils.DATE_FORMAT));
long t = 0;
if (date != null && currentDate != null) {
t = (currentDate.getTime() - date.getTime()) / DateUtils.MILLISECONDS_PER_DAY;
}
return t;
}
/**
* 获取当前日期指定天数之后的日期.
*
* @param num 相隔天数
* @return Date 日期
* @since 1.0
*/
public static Date nextDay(int num) {
Calendar curr = Calendar.getInstance();
curr.set(Calendar.DAY_OF_MONTH, curr.get(Calendar.DAY_OF_MONTH) + num);
return curr.getTime();
}
/**
* 获取当前日期指定月数之后的日期.
*
* @param num 间隔月数
* @return Date 日期
* @since 1.0
*/
public static Date nextMonth(int num) {
Calendar curr = Calendar.getInstance();
curr.set(Calendar.MONTH, curr.get(Calendar.MONTH) + num);
return curr.getTime();
}
/**
* 获取当前日期指定年数之后的日期.
*
* @param num 间隔年数
* @return Date 日期
* @since 1.0
*/
public static Date nextYear(int num) {
Calendar curr = Calendar.getInstance();
curr.set(Calendar.YEAR, curr.get(Calendar.YEAR) + num);
return curr.getTime();
}
/**
* 将 Date 日期转化为 Calendar 类型日期.
*
* @param date 给定的时间,若为null,则默认为当前时间
* @return Calendar Calendar对象
* @since 1.0
*/
public static Calendar getCalendar(Date date) {
Calendar calendar = Calendar.getInstance();
// calendar.setFirstDayOfWeek(Calendar.SUNDAY);//每周从周日开始
// calendar.setMinimalDaysInFirstWeek(1); // 设置每周最少为1天
if (date != null) {
calendar.setTime(date);
}
return calendar;
}
/**
* 计算两个日期之间相差天数.
*
* @param start 计算开始日期
* @param end 计算结束日期
* @return long 相隔天数
* @since 1.0
*/
public static long getDaysBetween(Date start, Date end) {
// 将指定日期转换为yyyy-MM-dd格式
start = DateUtils.parseDate(DateUtils.formatDate(start, DateUtils.DATE_FORMAT));
// 当前日期转换为yyyy-MM-dd格式
end = DateUtils.parseDate(DateUtils.formatDate(end, DateUtils.DATE_FORMAT));
long diff = 0;
if (start != null && end != null) {
diff = (end.getTime() - start.getTime()) / DateUtils.MILLISECONDS_PER_DAY;
}
return diff;
}
/**
* 计算两个日期之前相隔多少周.
*
* @param start 计算开始时间
* @param end 计算结束时间
* @return long 相隔周数,向下取整
* @since 1.0
*/
public static long getWeeksBetween(Date start, Date end) {
return getDaysBetween(start, end) / DateUtils.DAYS_PER_WEEK;
}
/**
* 获取与指定日期间隔给定天数的日期.
*
* @param specifiedDay 给定的字符串格式日期,支持的日期字符串格式包括"yyyy-MM-dd","yyyy-MM-dd HH:mm:ss", "yyyy-MM-dd HH:mm", "yyyy/MM/dd",
* "yyyy/MM/dd HH:mm:ss", "yyyy/MM/dd HH:mm"
* @param num 间隔天数
* @return String 间隔指定天数之后的日期
* @since 1.0
*/
public static String getSpecifiedDayAfter(String specifiedDay, int num) {
Date specifiedDate = parseDate(specifiedDay);
Calendar c = Calendar.getInstance();
c.setTime(specifiedDate);
int day = c.get(Calendar.DATE);
c.set(Calendar.DATE, day + num);
String dayAfter = formatDate(c.getTime(), DateUtils.DATE_FORMAT);
return dayAfter;
}
/**
* 计算两个日期之前间隔的小时数.
*
* @param date1 结束时间
* @param date2 开始时间
* @return String 相差的小时数,保留一位小数
* @since 1.0
*/
public static String dateMinus(Date date1, Date date2) {
if (date1 == null || date2 == null) {
return "0";
}
Long r = date1.getTime() - date2.getTime();
DecimalFormat df = new DecimalFormat("#.0");
double result = r * 1.0 / DateUtils.MILLISECONDS_PER_HOUR;
return df.format(result);
}
/**
* 获取当前季度 .
*
* @return Integer 当前季度数
* @since 1.0
*/
public static Integer getCurrentSeason() {
Calendar calendar = Calendar.getInstance();
Integer month = calendar.get(Calendar.MONTH) + 1;
int season = 0;
if (month >= 1 && month <= 3) {
season = 1;
} else if (month >= 4 && month <= 6) {
season = 2;
} else if (month >= 7 && month <= 9) {
season = 3;
} else if (month >= 10 && month <= 12) {
season = 4;
}
return season;
}
/**
* 将以秒为单位的时间转换为其他单位.
*
* @param seconds 秒数
* @return String 例如 16分钟前、2小时前、3天前、4月前、5年前等
* @since 1.0
*/
public static String getIntervalBySeconds(long seconds) {
StringBuffer buffer = new StringBuffer();
if (seconds < SECONDS_PER_MINUTE) {
buffer.append(seconds).append("秒前");
} else if (seconds < SECONDS_PER_HOUR) {
buffer.append(seconds / SECONDS_PER_MINUTE).append("分钟前");
} else if (seconds < SECONDS_PER_DAY) {
buffer.append(seconds / SECONDS_PER_HOUR).append("小时前");
} else if (seconds < SECONDS_PER_MONTH) {
buffer.append(seconds / SECONDS_PER_DAY).append("天前");
} else if (seconds < SECONDS_PER_YEAR) {
buffer.append(seconds / SECONDS_PER_MONTH).append("月前");
} else {
buffer.append(seconds / DateUtils.SECONDS_PER_YEAR).append("年前");
}
return buffer.toString();
}
/**
* getNowTimeBefore(记录时间相当于目前多久之前)
*
* @param seconds 秒
* @return
* @throws @since 1.0
* @author rlliu
*/
public static String getNowTimeBefore(long seconds) {
StringBuffer buffer = new StringBuffer();
buffer.append("上传于");
if (seconds < 3600) {
buffer.append((long) Math.floor(seconds / 60.0)).append("分钟前");
} else if (seconds < 86400) {
buffer.append((long) Math.floor(seconds / 3600.0)).append("小时前");
} else if (seconds < 604800) {
buffer.append((long) Math.floor(seconds / 86400.0)).append("天前");
} else if (seconds < 2592000) {
buffer.append((long) Math.floor(seconds / 604800.0)).append("周前");
} else if (seconds < 31104000) {
buffer.append((long) Math.floor(seconds / 2592000.0)).append("月前");
} else {
buffer.append((long) Math.floor(seconds / 31104000.0)).append("年前");
}
return buffer.toString();
}
/**
* getMonthsBetween(查询两个日期相隔的月份)
*
* @param startDate 开始日期1 (格式yyyy-MM-dd)
* @param endDate 截止日期2 (格式yyyy-MM-dd)
* @return
*/
public static int getMonthsBetween(@NotNull(message = "开始时间不能为空") Date startDate, @NotNull(message = "结束时间不能为空") Date endDate) {
Calendar c1 = Calendar.getInstance();
Calendar c2 = Calendar.getInstance();
c1.setTime(DateUtils.parseDate(startDate));
c2.setTime(DateUtils.parseDate(endDate));
int year = c2.get(Calendar.YEAR) - c1.get(Calendar.YEAR);
int month = c2.get(Calendar.MONTH) - c1.get(Calendar.MONTH);
return Math.abs(year * 12 + month);
}
/**
* getDayOfWeek(获取当前日期是星期几)
*
* @param dateStr 日期
* @return 星期几
*/
public static String getDayOfWeek(String dateStr) {
String[] weekOfDays = {"星期日", "星期一", "星期二", "星期三", "星期四", "星期五", "星期六"};
Date date = parseDate(dateStr);
Calendar calendar = Calendar.getInstance();
calendar.setTime(date);
int num = calendar.get(Calendar.DAY_OF_WEEK) - 1;
return weekOfDays[num];
}
/**
* sns 格式 如几秒前,几分钟前,几小时前,几天前,几个月前,几年后, ... 精细,类如某个明星几秒钟之前发表了一篇微博
*
* @param createTime
* @return
*/
public static String snsFormat(long createTime) {
long now = System.currentTimeMillis() / 1000;
long differ = now - createTime / 1000;
String dateStr = "";
if (differ <= 60) {
dateStr = "刚刚";
} else if (differ <= 3600) {
dateStr = (differ / 60) + "分钟前";
} else if (differ <= 3600 * 24) {
dateStr = (differ / 3600) + "小时前";
} else if (differ <= 3600 * 24 * 30) {
dateStr = (differ / (3600 * 24)) + "天前";
} else {
Date date = new Date(createTime);
SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd");
dateStr = sdf.format(date);
}
return dateStr;
}
/**
* 得到UTC时间,类型为字符串,格式为"yyyy-MM-dd HH:mm" 如果获取失败,返回null
*
* @return
*/
public static String getUTCTimeStr() {
StringBuffer UTCTimeBuffer = new StringBuffer();
// 1、取得本地时间:
Calendar cal = Calendar.getInstance();
// 2、取得时间偏移量:
int zoneOffset = cal.get(java.util.Calendar.ZONE_OFFSET);
// 3、取得夏令时差:
int dstOffset = cal.get(java.util.Calendar.DST_OFFSET);
// 4、从本地时间里扣除这些差量,即可以取得UTC时间:
cal.add(java.util.Calendar.MILLISECOND, -(zoneOffset + dstOffset));
int year = cal.get(Calendar.YEAR);
int month = cal.get(Calendar.MONTH) + 1;
int day = cal.get(Calendar.DAY_OF_MONTH);
int hour = cal.get(Calendar.HOUR_OF_DAY);
int minute = cal.get(Calendar.MINUTE);
UTCTimeBuffer.append(year).append("-").append(month).append("-").append(day);
UTCTimeBuffer.append(" ").append(hour).append(":").append(minute);
try {
SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd HH:mm");
sdf.parse(UTCTimeBuffer.toString());
return UTCTimeBuffer.toString();
} catch (ParseException e) {
e.printStackTrace();
}
return null;
}
/**
* 在日期上增加数个整年
*/
public static Date addYear(Date date, int n) {
Calendar cal = Calendar.getInstance();
cal.setTime(date);
cal.add(Calendar.YEAR, n);
return cal.getTime();
}
/**
* 在日期上增加数个整月
*/
public static Date addMonth(Date date, int n) {
Calendar cal = Calendar.getInstance();
cal.setTime(date);
cal.add(Calendar.MONTH, n);
return cal.getTime();
}
/**
* 在日期上增加数个整日(n为负数则是减少数日)
*/
public static Date addDay(Date date, int n) {
Calendar cal = Calendar.getInstance();
cal.setTime(date);
cal.add(Calendar.DAY_OF_MONTH, n);
return cal.getTime();
}
/**
* 在日期上增加数个小时(n为负数则是减少数小时)
*/
public static Date addHour(Date date, int n) {
Calendar cal = Calendar.getInstance();
cal.setTime(date);
cal.add(Calendar.HOUR_OF_DAY, n);
return cal.getTime();
}
/**
* 获取明日0点时刻
* <p>
* 比如今天是2019-02-01,调用这个方法会返回2019-02-02
*
* @return
*/
public static Date getTomorrowDate() {
Calendar cal = Calendar.getInstance();
cal.setTime(new Date());
cal.add(Calendar.DATE, 1);
cal.set(cal.get(Calendar.YEAR), cal.get(Calendar.MONTH), cal.get(Calendar.DAY_OF_MONTH), 0, 0, 0);
return cal.getTime();
}
/**
* 获取昨天0点时刻
* <p>
* 比如今天是2021-11-26,调用这个方法会返回2021-11-25
*
* @return
*/
public static Date getYesterdayDate() {
Calendar cal = Calendar.getInstance();
cal.setTime(new Date());
cal.add(Calendar.DATE, -1);
cal.set(cal.get(Calendar.YEAR), cal.get(Calendar.MONTH), cal.get(Calendar.DAY_OF_MONTH), 0, 0, 0);
return cal.getTime();
}
/**
* 获取当天日期0点时刻
* <p>
* 比如今天是2021-11-26,调用这个方法会返回2021-11-26
*
* @return
*/
public static Date getTodayDate() {
Calendar cal = Calendar.getInstance();
cal.setTime(new Date());
cal.set(cal.get(Calendar.YEAR), cal.get(Calendar.MONTH), cal.get(Calendar.DAY_OF_MONTH), 0, 0, 0);
return cal.getTime();
}
/**
* 获取当月1号0点时刻
* <p>
* 比如今天是2021-11-26,调用这个方法会返回2021-11-01
*
* @return
*/
public static Date getMonthFirstDate() {
Calendar cal = Calendar.getInstance();
cal.setTime(new Date());
cal.set(cal.get(Calendar.YEAR), cal.get(Calendar.MONTH), 1, 0, 0, 0);
return cal.getTime();
}
/**
* 获取上月1号0点时刻
* <p>
* 比如今天是2021-11-26,调用这个方法会返回2021-11-01
*
* @return
*/
public static Date getLastMonthFirstDate() {
Calendar cal = Calendar.getInstance();
cal.setTime(new Date());
cal.add(Calendar.MONTH, -1);
cal.set(cal.get(Calendar.YEAR), cal.get(Calendar.MONTH), 1, 0, 0, 0);
return cal.getTime();
}
/**
* 获取当前月离之前N月1号0点时刻
* <p>
* 比如今天是2021-11-26,调用这个方法会返回2021-n-01
*
* @return
*/
public static Date getNMonthFirstDate(int n) {
Calendar cal = Calendar.getInstance();
cal.setTime(new Date());
cal.add(Calendar.MONTH, n);
cal.set(cal.get(Calendar.YEAR), cal.get(Calendar.MONTH), 1, 0, 0, 0);
return cal.getTime();
}
/**
* 获取上月1号0点时刻
* <p>
* 比如今天是2021-11-26,调用这个方法会返回2021-11-01
*
* @return
*/
public static Date getNextMonthFirstDate() {
Calendar cal = Calendar.getInstance();
cal.setTime(new Date());
cal.add(Calendar.MONTH, 1);
cal.set(cal.get(Calendar.YEAR), cal.get(Calendar.MONTH), 1, 0, 0, 0);
return cal.getTime();
}
/**
* 获取当年1月1号0点时刻
* <p>
* 比如今天是2021-11-26,调用这个方法会返回2021-01-01
*
* @return
*/
public static Date getYearFirstDate() {
Calendar cal = Calendar.getInstance();
cal.setTime(new Date());
cal.set(cal.get(Calendar.YEAR), 0, 1, 0, 0, 0);
return cal.getTime();
}
/**
* 在日期上增加数个分钟(n为负数则是减少数分钟)
*/
public static Date addMinute(Date date, int n) {
Calendar cal = Calendar.getInstance();
cal.setTime(date);
cal.add(Calendar.MINUTE, n);
return cal.getTime();
}
/**
* 获取去年1月1号0点时刻
* <p>
* 比如今天是2021-11-26,调用这个方法会返回2020-01-01
*
* @return
*/
public static Date getLastYearFirstDate() {
Calendar cal = Calendar.getInstance();
cal.setTime(new Date());
cal.add(Calendar.YEAR, -1);
cal.set(cal.get(Calendar.YEAR), 0, 1, 0, 0, 0);
return cal.getTime();
}
/**
* 获取去年1月1号0点时刻
* <p>
* 比如今天是2021-11-26,调用这个方法会返回2020-01-01
*
* @return
*/
public static Date getNextYearFirstDate() {
Calendar cal = Calendar.getInstance();
cal.setTime(new Date());
cal.add(Calendar.YEAR, 1);
cal.set(cal.get(Calendar.YEAR), 0, 1, 0, 0, 0);
return cal.getTime();
}
/**
* 时间格式化到天
* <p>
* 比如时间是2021-11-26 13:42:00,调用这个方法会返回2021-11-26 00:00:00
*
* @return
*/
public static Date formatDay(Date date) {
Calendar cal = Calendar.getInstance();
cal.setTime(date);
cal.add(Calendar.YEAR, 1);
cal.set(cal.get(Calendar.YEAR), cal.get(Calendar.MONTH), cal.get(Calendar.DAY_OF_MONTH), 0, 0, 0);
return cal.getTime();
}
/**
* 根据起止时间获取环比开始时间
*
* @param startDate 开始时间
* @param endDate 结束时间
* @return 环比开始时间
*/
public static Date getChainRatioStartDate(Date startDate, Date endDate) {
if (startDate == null || endDate == null) {
return null;
}
return new Date(startDate.getTime() * 2 - endDate.getTime());
}
/**
* 秒时间
*
* @param time 时间
* @return {@code String}
*/
public static String secToTime(int time) {
int hour = 0;
int minute = 0;
int second = 0;
if (time <= 0) {
return "00:00:00";
} else {
if (time >= 3600) {
hour = time / 3600;
time = time % 3600;
}
if (time >= 60) {
minute = time / 60;
second = time % 60;
} else {
second = time % 60;
}
return timeFormat(hour) + ":" + timeFormat(minute) + ":" + timeFormat(second);
}
}
/**
* 时间格式
*
* @param num 处理秒时间格式
* @return {@code String}
*/
public static String timeFormat(int num) {
String retStr = null;
if (num >= 0 && num < 10) {
retStr = "0" + Integer.toString(num);
} else {
retStr = "" + num;
}
return retStr;
}
/**
* 时间分片
*
* @param dateType 日期类型
* @param start 开始
* @param end 结束
* @return {@code List<String>}
*/
public static List<String> cutDate(String dateType, Date start, Date end) {
try {
String dBegin = DateUtils.getDate(start, "yyyy-MM-dd HH:mm:ss");
String dEnd = DateUtils.getDate(end, "yyyy-MM-dd HH:mm:ss");
SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
Date cutBegin = sdf.parse(dBegin);
Date cutEnd = sdf.parse(dEnd);
return findDates(dateType, cutBegin, cutEnd);
} catch (Exception e) {
e.getMessage();
}
return null;
}
public static List<String> findDates(String dateType, Date dBegin, Date dEnd) throws Exception {
List<String> listDate = new ArrayList<>();
listDate.add(new SimpleDateFormat("yyyy-MM-dd HH:mm:ss").format(dBegin.getTime()));
Calendar calBegin = Calendar.getInstance();
calBegin.setTime(dBegin);
Calendar calEnd = Calendar.getInstance();
calEnd.setTime(dEnd);
while (calEnd.after(calBegin)) {
switch (dateType) {
case "M":
calBegin.add(Calendar.MONTH, 1);
break;
case "D":
calBegin.add(Calendar.DAY_OF_YEAR, 1);
break;
case "H":
calBegin.add(Calendar.HOUR, 1);
break;
case "N":
calBegin.add(Calendar.MINUTE, 10);
break;
case "Y":
calBegin.add(Calendar.YEAR, 1);
default:
}
if (calEnd.after(calBegin)) {
listDate.add(new SimpleDateFormat("yyyy-MM-dd HH:mm:ss").format(calBegin.getTime()));
}
}
return listDate;
}
/**
* 整日时间分片
*DAY,MONTH,YEAR,CUSTOM
* @param dateType 日期类型
* @param start 开始
* @param end 结束
* @return {@code List<String>}
*/
public static List<String> cutDates(String dateType, Date start, Date end,int n) {
try {
String dBegin = DateUtils.getDate(start, "yyyy-MM-dd HH:mm:ss");
String dEnd = DateUtils.getDate(end, "yyyy-MM-dd HH:mm:ss");
SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
Date cutBegin = sdf.parse(dBegin);
Date cutEnd = sdf.parse(dEnd);
return findDate(dateType, cutBegin, cutEnd,n);
} catch (Exception e) {
e.getMessage();
}
return null;
}
public static List<String> findDate(String dateType, Date dBegin, Date dEnd,int n) throws Exception {
List<String> listDate = new ArrayList<>();
listDate.add(new SimpleDateFormat("yyyy-MM-dd HH:mm:ss").format(dBegin.getTime()));
Calendar calBegin = Calendar.getInstance();
calBegin.setTime(dBegin);
Calendar calEnd = Calendar.getInstance();
calEnd.setTime(dEnd);
while (calEnd.after(calBegin)) {
switch (dateType) {
case "MONTH":
calBegin.add(Calendar.MONTH, 1);
break;
case "DAY":
calBegin.add(Calendar.DAY_OF_YEAR, 1);
break;
case "CUSTOM":
calBegin.add(Calendar.DAY_OF_YEAR, n);
break;
case "YEAR":
calBegin.add(Calendar.YEAR, 1);
default:
}
if (calEnd.after(calBegin)) {
listDate.add(new SimpleDateFormat("yyyy-MM-dd HH:mm:ss").format(calBegin.getTime()));
}
}
return listDate;
}
/**
* 判断当前时间是否在开始事假和结束时间之间
*
* @param nowTime 现在时间
* @param startTime 开始时间
* @param endTime 结束时间
* @return boolean
*/
public static boolean isEffectiveDate(Date nowTime, Date startTime, Date endTime) {
if (nowTime.getTime() == startTime.getTime()
|| nowTime.getTime() == endTime.getTime()) {
return true;
}
Calendar date = Calendar.getInstance();
date.setTime(nowTime);
Calendar begin = Calendar.getInstance();
begin.setTime(startTime);
Calendar end = Calendar.getInstance();
end.setTime(endTime);
if (date.after(begin) && date.before(end)) {
return true;
} else {
return false;
}
}
}