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- package com.yihu.jw.util;
- import org.apache.commons.lang3.StringUtils;
- import java.sql.Timestamp;
- import java.text.DateFormat;
- import java.text.ParsePosition;
- import java.text.SimpleDateFormat;
- import java.util.*;
- public class DateUtil {
- public static final String HH_MM = "HH:mm";
- public static final String HH_MM_SS = "HH:mm:ss";
- public static final String YY = "yy";
- public static final String YYYYMM = "yyyyMM";
- public static final String YYYYMMDD = "yyyyMMdd";
- public static final String YYYY_MM_DD = "yyyy-MM-dd";
- public static final String YYYYMMDDHHMMSS = "yyyyMMddHHmmss";
- public static final String YYYY_MM_DD_HH = "yyyy-MM-dd HH";
- public static final String YYYY_MM_DD_HH_MM = "yyyy-MM-dd HH:mm";
- public static final String YYYY_MM_DD_HH_MM_SS = "yyyy-MM-dd HH:mm:ss";
- public static final String YYYY_M_D_HH_MM_SS = "yyyy/M/d HH:mm:ss";
- /**
- * 时间格式转中文格式
- */
- public static String dateToChinese(Date date) {
- SimpleDateFormat formatter = new SimpleDateFormat( "yyyy年MM月dd日 EEEEaaaa hh:mm", Locale.CHINA);
- return formatter.format(date);
- }
- /*public static void main(String[] args)
- {
- System.out.print(dateToChinese(new Date()));
- }*/
- /**
- * 字符串转时间格式
- */
- public static Date strToDate(String strDate) {
- if (StringUtils.isEmpty(strDate)) {
- return null;
- }
- else{
- int length = strDate.length();
- if(strDate.contains("/"))
- {
- strDate = strDate.replace("/","-");
- }
- if(strDate.contains("-"))
- {
- if(length == 10)
- {
- return strToDate(strDate,YYYY_MM_DD);
- }
- else if(length == 19)
- {
- return strToDate(strDate,YYYY_MM_DD_HH_MM_SS);
- }
- }
- else{
- if(length == 8)
- {
- return strToDate(strDate,YYYYMMDD);
- }
- else if(length == 14)
- {
- return strToDate(strDate,YYYYMMDDHHMMSS);
- }
- }
- }
- return null;
- }
- /**
- * 获取现在时间
- *
- * @return 返回时间类型 yyyy-MM-dd HH:mm:ss
- */
- public static Date getNowDate() {
- Date currentTime = new Date();
- SimpleDateFormat formatter = new SimpleDateFormat(YYYY_MM_DD_HH_MM_SS);
- String dateString = formatter.format(currentTime);
- ParsePosition pos = new ParsePosition(0);
- return formatter.parse(dateString, pos);
- }
- /**
- * 获取现在时间
- *
- * @return返回短时间格式 yyyy-MM-dd
- */
- public static Date getNowDateShort() {
- Date currentTime = new Date();
- SimpleDateFormat formatter = new SimpleDateFormat(YYYY_MM_DD);
- String dateString = formatter.format(currentTime);
- return strToDate(dateString, YYYY_MM_DD);
- }
- /**
- * 获取现在时间
- *
- * @return返回字符串格式 yyyy-MM-dd HH:mm:ss
- */
- public static String getStringDate() {
- Date currentTime = new Date();
- SimpleDateFormat formatter = new SimpleDateFormat(YYYY_MM_DD_HH_MM_SS);
- return formatter.format(currentTime);
- }
- /**
- * 获取现在时间
- *
- * @return返回字符串格式 yyyy-MM-dd HH:mm:ss
- */
- public static String getStringDate(String format) {
- Date currentTime = new Date();
- SimpleDateFormat formatter = new SimpleDateFormat(format);
- return formatter.format(currentTime);
- }
- /**
- * 获取现在时间
- *
- * @return 返回短时间字符串格式yyyy-MM-dd
- */
- public static String getStringDateShort() {
- Date currentTime = new Date();
- SimpleDateFormat formatter = new SimpleDateFormat(YYYY_MM_DD);
- return formatter.format(currentTime);
- }
- /**
- * 获取时间 小时:分;秒 HH:mm:ss
- *
- * @return
- */
- public static String getTimeShort() {
- SimpleDateFormat formatter = new SimpleDateFormat(HH_MM_SS);
- Date currentTime = new Date();
- return formatter.format(currentTime);
- }
- /**
- * 将长时间格式字符串转换为时间 yyyy-MM-dd HH:mm:ss
- *
- * @param strDate
- * @return
- */
- public static Date strToDateLong(String strDate) {
- if (StringUtils.isEmpty(strDate)) {
- return null;
- }
- SimpleDateFormat formatter = new SimpleDateFormat(YYYY_MM_DD_HH_MM_SS);
- ParsePosition pos = new ParsePosition(0);
- return formatter.parse(strDate, pos);
- }
- public static Date strToDateShort(String strDate) {
- if (StringUtils.isEmpty(strDate)) {
- return null;
- }
- SimpleDateFormat formatter = new SimpleDateFormat(YYYY_MM_DD);
- ParsePosition pos = new ParsePosition(0);
- return formatter.parse(strDate, pos);
- }
- /**
- * 将长时间格式时间转换为字符串 yyyy-MM-dd HH:mm:ss
- *
- * @param dateDate
- * @return
- */
- public static String dateToStrLong(Date dateDate) {
- if (dateDate == null) {
- return "";
- }
- SimpleDateFormat formatter = new SimpleDateFormat(YYYY_MM_DD_HH_MM_SS);
- return formatter.format(dateDate);
- }
- public static String dateToStrNoSecond(Date dateDate) {
- if (dateDate == null) {
- return "";
- }
- SimpleDateFormat formatter = new SimpleDateFormat(YYYY_MM_DD_HH_MM);
- return formatter.format(dateDate);
- }
- /**
- * 将长时间格式时间转换为字符串 yyyy-MM-dd
- *
- * @param dateDate
- * @return
- */
- public static String dateToStrShort(Date dateDate) {
- if (dateDate == null) {
- return "";
- }
- SimpleDateFormat formatter = new SimpleDateFormat(YYYY_MM_DD);
- return formatter.format(dateDate);
- }
- /**
- * 将短时间格式时间转换为字符串 yyyy-MM-dd
- */
- public static String dateToStr(Date dateDate, String format) {
- if (dateDate == null) {
- return "";
- }
- SimpleDateFormat formatter = new SimpleDateFormat(format);
- return formatter.format(dateDate);
- }
- /**
- * 将短时间格式字符串转换为时间
- *
- * @param strDate
- * @return
- */
- public static Date strToDate(String strDate, String format) {
- if (StringUtils.isEmpty(strDate)) {
- return null;
- }
- SimpleDateFormat formatter = new SimpleDateFormat(format);
- ParsePosition pos = new ParsePosition(0);
- return formatter.parse(strDate, pos);
- }
- public static Date strToDateAppendNowTime(String strDate, String format) {
- if (StringUtils.isEmpty(strDate)) {
- return null;
- }
- strDate += " " + getTimeShort();
- SimpleDateFormat formatter = new SimpleDateFormat(format);
- ParsePosition pos = new ParsePosition(0);
- return formatter.parse(strDate, pos);
- }
- /**
- * 得到现在时间
- *
- * @return
- */
- public static Date getNow() {
- Date currentTime = new Date();
- return currentTime;
- }
- /**
- * 提取一个月中的最后一天
- *
- * @param day
- * @return
- */
- public static Date getLastDate(long day) {
- Date date = new Date();
- long date_3_hm = date.getTime() - 3600000 * 34 * day;
- Date date_3_hm_date = new Date(date_3_hm);
- return date_3_hm_date;
- }
- /**
- * 得到现在时间
- *
- * @return 字符串 yyyyMMdd HHmmss
- */
- public static String getStringToday() {
- Date currentTime = new Date();
- SimpleDateFormat formatter = new SimpleDateFormat("yyyyMMdd HHmmss");
- String dateString = formatter.format(currentTime);
- return dateString;
- }
- /**
- * 得到现在小时
- */
- public static String getHour() {
- Date currentTime = new Date();
- SimpleDateFormat formatter = new SimpleDateFormat(YYYY_MM_DD_HH_MM_SS);
- String dateString = formatter.format(currentTime);
- String hour;
- hour = dateString.substring(11, 13);
- return hour;
- }
- /**
- * 得到现在分钟
- *
- * @return
- */
- public static String getTime() {
- Date currentTime = new Date();
- SimpleDateFormat formatter = new SimpleDateFormat(YYYY_MM_DD_HH_MM_SS);
- String dateString = formatter.format(currentTime);
- String min;
- min = dateString.substring(14, 16);
- return min;
- }
- /**
- * 根据用户传入的时间表示格式,返回当前时间的格式 如果是yyyyMMdd,注意字母y不能大写。
- *
- * @param sformat
- * yyyyMMddhhmmss
- * @return
- */
- public static String getUserDate(String sformat) {
- Date currentTime = new Date();
- SimpleDateFormat formatter = new SimpleDateFormat(sformat);
- String dateString = formatter.format(currentTime);
- return dateString;
- }
- /**
- * 二个小时时间间的差值,必须保证二个时间都是"HH:MM"的格式,返回字符型的分钟
- */
- public static String getTwoHour(String st1, String st2) {
- String[] kk = null;
- String[] jj = null;
- kk = st1.split(":");
- jj = st2.split(":");
- if (Integer.parseInt(kk[0]) < Integer.parseInt(jj[0]))
- return "0";
- else {
- double y = Double.parseDouble(kk[0]) + Double.parseDouble(kk[1]) / 60;
- double u = Double.parseDouble(jj[0]) + Double.parseDouble(jj[1]) / 60;
- if ((y - u) > 0)
- return y - u + "";
- else
- return "0";
- }
- }
- /**
- * 得到二个日期间的间隔天数
- */
- public static String getTwoDay(String sj1, String sj2) {
- SimpleDateFormat myFormatter = new SimpleDateFormat(YYYY_MM_DD);
- long day = 0;
- try {
- Date date = myFormatter.parse(sj1);
- Date mydate = myFormatter.parse(sj2);
- day = (date.getTime() - mydate.getTime()) / (24 * 60 * 60 * 1000);
- } catch (Exception e) {
- return "";
- }
- return day + "";
- }
- /**
- * 时间前推或后推分钟,其中JJ表示分钟.
- */
- public static String getPreTime(String sj1, String jj) {
- SimpleDateFormat format = new SimpleDateFormat(YYYY_MM_DD_HH_MM_SS);
- String mydate1 = "";
- try {
- Date date1 = format.parse(sj1);
- long Time = (date1.getTime() / 1000) + Integer.parseInt(jj) * 60;
- date1.setTime(Time * 1000);
- mydate1 = format.format(date1);
- } catch (Exception e) {
- }
- return mydate1;
- }
- /**
- * 时间前推或后推天数(负数前推正数后推)
- * date 基准时间
- */
- public static Date getPreDays(Date date, int days) {
- Date day = null;
- try {
- Calendar c = Calendar.getInstance();
- c.setTime(date);
- c.add(Calendar.DATE, days);
- day = c.getTime();
- } catch (Exception e) {
- }
- return day;
- }
- /**
- * 得到一个时间延后或前移几分钟的时间,nowdate为时间,delay为前移或后延的分钟数
- */
- public static Date getNextMin(Date date, int delay) {
- try {
- Calendar cal = Calendar.getInstance();
- cal.setTime(date);
- cal.add(Calendar.MINUTE, delay);
- return cal.getTime();
- } catch (Exception e) {
- return null;
- }
- }
- /**
- * 得到一个时间延后或前移几天的时间,nowdate为时间,delay为前移或后延的天数
- */
- public static String getNextDay(String nowdate, int delay) {
- try {
- SimpleDateFormat format = new SimpleDateFormat(YYYY_MM_DD);
- String mdate = "";
- Date d = strToDate(nowdate, YYYY_MM_DD);
- long myTime = (d.getTime() / 1000) + delay * 24 * 60 * 60;
- d.setTime(myTime * 1000);
- mdate = format.format(d);
- return mdate;
- } catch (Exception e) {
- return "";
- }
- }
- // public static String getNextDay(Date d, int delay) {
- // try {
- // SimpleDateFormat format = new SimpleDateFormat(YYYY_MM_DD);
- // String mdate = "";
- // long myTime = (d.getTime() / 1000) + delay * 24 * 60 * 60;
- // d.setTime(myTime * 1000);
- // mdate = format.format(d);
- // return mdate;
- // } catch (Exception e) {
- // return "";
- // }
- // }
- public static String getNextDay(Date d, int days) {
- Calendar c = Calendar.getInstance();
- c.setTime(d);
- c.add(Calendar.DATE, days);
- return dateToStrShort(c.getTime());
- }
- public static String getNextMonth(Date d, int months) {
- Calendar c = Calendar.getInstance();
- c.setTime(d);
- c.add(Calendar.MONTH, months);
- return dateToStrShort(c.getTime());
- }
- public static String getNextYear(Date d, int year) {
- Calendar c = Calendar.getInstance();
- c.setTime(d);
- c.add(Calendar.YEAR, year);
- return dateToStrShort(c.getTime());
- }
- /**
- * 获取本月第一天
- * @return
- */
- public static String getCurMonthFirstDayShort(){
- Calendar c = Calendar.getInstance();
- c.set(Calendar.DAY_OF_MONTH,1);//设置为1号,当前日期既为本月第一天
- return dateToStrShort(c.getTime());
- }
- /**
- * 判断是否润年
- *
- * @param ddate
- * @return
- */
- public static boolean isLeapYear(String ddate) {
- /**
- * 详细设计: 1.被400整除是闰年,否则: 2.不能被4整除则不是闰年 3.能被4整除同时不能被100整除则是闰年
- * 3.能被4整除同时能被100整除则不是闰年
- */
- Date d = strToDate(ddate, YYYY_MM_DD);
- GregorianCalendar gc = (GregorianCalendar) Calendar.getInstance();
- gc.setTime(d);
- int year = gc.get(Calendar.YEAR);
- if ((year % 400) == 0)
- return true;
- else if ((year % 4) == 0) {
- if ((year % 100) == 0)
- return false;
- else
- return true;
- } else
- return false;
- }
- /**
- * 返回美国时间格式 26 Apr 2006
- *
- * @param str
- * @return
- */
- public static String getEDate(String str) {
- SimpleDateFormat formatter = new SimpleDateFormat(YYYY_MM_DD);
- ParsePosition pos = new ParsePosition(0);
- Date strtodate = formatter.parse(str, pos);
- String j = strtodate.toString();
- String[] k = j.split(" ");
- return k[2] + k[1].toUpperCase() + k[5].substring(2, 4);
- }
- /**
- * 获取一个月的最后一天
- *
- * @param dat
- * @return
- */
- public static String getEndDateOfMonth(String dat) {// yyyy-MM-dd
- String str = dat.substring(0, 8);
- String month = dat.substring(5, 7);
- int mon = Integer.parseInt(month);
- if (mon == 1 || mon == 3 || mon == 5 || mon == 7 || mon == 8 || mon == 10 || mon == 12) {
- str += "31";
- } else if (mon == 4 || mon == 6 || mon == 9 || mon == 11) {
- str += "30";
- } else {
- if (isLeapYear(dat)) {
- str += "29";
- } else {
- str += "28";
- }
- }
- return str;
- }
- /**
- * 判断二个时间是否在同一个周
- *
- * @param date1
- * @param date2
- * @return
- */
- public static boolean isSameWeekDates(Date date1, Date date2) {
- Calendar cal1 = Calendar.getInstance();
- Calendar cal2 = Calendar.getInstance();
- cal1.setTime(date1);
- cal2.setTime(date2);
- int subYear = cal1.get(Calendar.YEAR) - cal2.get(Calendar.YEAR);
- if (0 == subYear) {
- if (cal1.get(Calendar.WEEK_OF_YEAR) == cal2.get(Calendar.WEEK_OF_YEAR))
- return true;
- } else if (1 == subYear && 11 == cal2.get(Calendar.MONTH)) {
- // 如果12月的最后一周横跨来年第一周的话则最后一周即算做来年的第一周
- if (cal1.get(Calendar.WEEK_OF_YEAR) == cal2.get(Calendar.WEEK_OF_YEAR))
- return true;
- } else if (-1 == subYear && 11 == cal1.get(Calendar.MONTH)) {
- if (cal1.get(Calendar.WEEK_OF_YEAR) == cal2.get(Calendar.WEEK_OF_YEAR))
- return true;
- }
- return false;
- }
- /**
- * 产生周序列,即得到当前时间所在的年度是第几周
- *
- * @return
- */
- public static String getSeqWeek() {
- Calendar c = Calendar.getInstance(Locale.CHINA);
- String week = Integer.toString(c.get(Calendar.WEEK_OF_YEAR));
- if (week.length() == 1)
- week = "0" + week;
- String year = Integer.toString(c.get(Calendar.YEAR));
- return year + week;
- }
- /**
- * 获得一个日期所在的周的星期几的日期,如要找出2002年2月3日所在周的星期一是几号
- *
- * @param sdate
- * @param num
- * @return
- */
- public static String getWeek(String sdate, String num) {
- // 再转换为时间
- Date dd = DateUtil.strToDate(sdate, YYYY_MM_DD);
- Calendar c = Calendar.getInstance();
- c.setTime(dd);
- if (num.equals("1")) // 返回星期一所在的日期
- c.set(Calendar.DAY_OF_WEEK, Calendar.MONDAY);
- else if (num.equals("2")) // 返回星期二所在的日期
- c.set(Calendar.DAY_OF_WEEK, Calendar.TUESDAY);
- else if (num.equals("3")) // 返回星期三所在的日期
- c.set(Calendar.DAY_OF_WEEK, Calendar.WEDNESDAY);
- else if (num.equals("4")) // 返回星期四所在的日期
- c.set(Calendar.DAY_OF_WEEK, Calendar.THURSDAY);
- else if (num.equals("5")) // 返回星期五所在的日期
- c.set(Calendar.DAY_OF_WEEK, Calendar.FRIDAY);
- else if (num.equals("6")) // 返回星期六所在的日期
- c.set(Calendar.DAY_OF_WEEK, Calendar.SATURDAY);
- else if (num.equals("0")) // 返回星期日所在的日期
- c.set(Calendar.DAY_OF_WEEK, Calendar.SUNDAY);
- return new SimpleDateFormat("yyyy-MM-dd").format(c.getTime());
- }
- /**
- * 获取2个时间点的工作日天数
- * @param startDate 开始时间
- * @param endDate 结束时间
- * @return
- */
- public static int getDutyDays(Date startDate, Date endDate) {
- int result = 0;
- Date startTime = new Date(startDate.getTime());
- while (startTime.compareTo(endDate) <= 0) {
- if (startTime.getDay() != 6 && startTime.getDay() != 0) {
- result++;
- }
- startTime.setDate(startTime.getDate() + 1);
- }
- return result;
- }
- /**
- * 根据一个日期,返回是星期几的字符串
- *
- * @param sdate
- * @return
- */
- public static String getWeek(String sdate) {
- // 再转换为时间
- Date date = DateUtil.strToDate(sdate, YYYY_MM_DD);
- Calendar c = Calendar.getInstance();
- c.setTime(date);
- // int hour=c.get(Calendar.DAY_OF_WEEK);
- // hour中存的就是星期几了,其范围 1~7
- // 1=星期日 7=星期六,其他类推
- return new SimpleDateFormat("EEEE").format(c.getTime());
- }
- public static String getWeekStr(String sdate) {
- String str = "";
- str = DateUtil.getWeek(sdate);
- if ("1".equals(str)) {
- str = "星期日";
- } else if ("2".equals(str)) {
- str = "星期一";
- } else if ("3".equals(str)) {
- str = "星期二";
- } else if ("4".equals(str)) {
- str = "星期三";
- } else if ("5".equals(str)) {
- str = "星期四";
- } else if ("6".equals(str)) {
- str = "星期五";
- } else if ("7".equals(str)) {
- str = "星期六";
- }
- return str;
- }
- /**
- * 两个时间之间的天数
- *
- * @param date1
- * @param date2
- * @return
- */
- public static long getDays(String date1, String date2) {
- if (date1 == null || date1.equals(""))
- return 0;
- if (date2 == null || date2.equals(""))
- return 0;
- // 转换为标准时间
- SimpleDateFormat myFormatter = new SimpleDateFormat(YYYY_MM_DD);
- Date date = null;
- Date mydate = null;
- try {
- date = myFormatter.parse(date1);
- mydate = myFormatter.parse(date2);
- } catch (Exception e) {
- }
- long day = (date.getTime() - mydate.getTime()) / (24 * 60 * 60 * 1000);
- return day;
- }
- /**
- * 返回两个日期相差的天数
- * @param date1
- * @param date2
- * @return
- */
- public static long getDays(Date date1, Date date2) {
- if (date1 == null || date2 == null)
- return 0;
- long day = (date1.getTime() - date2.getTime()) / (24 * 60 * 60 * 1000);
- return day;
- }
- /**
- * 形成如下的日历 , 根据传入的一个时间返回一个结构 星期日 星期一 星期二 星期三 星期四 星期五 星期六 下面是当月的各个时间
- * 此函数返回该日历第一行星期日所在的日期
- *
- * @param sdate
- * @return
- */
- public static String getNowMonth(String sdate) {
- // 取该时间所在月的一号
- sdate = sdate.substring(0, 8) + "01";
- // 得到这个月的1号是星期几
- Date date = DateUtil.strToDate(sdate, YYYY_MM_DD);
- Calendar c = Calendar.getInstance();
- c.setTime(date);
- int u = c.get(Calendar.DAY_OF_WEEK);
- String newday = DateUtil.getNextDay(sdate, 1 - u);
- return newday;
- }
- /**
- * 取得数据库主键 生成格式为yyyymmddhhmmss+k位随机数
- *
- * @param k 表示是取几位随机数,可以自己定
- */
- public static String getNo(int k) {
- return getUserDate("yyyyMMddhhmmss") + getRandom(k);
- }
- /**
- * 返回一个随机数
- *
- * @param i
- * @return
- */
- public static String getRandom(int i) {
- Random jjj = new Random();
- if (i == 0)
- return "";
- String jj = "";
- for (int k = 0; k < i; k++) {
- jj = jj + jjj.nextInt(9);
- }
- return jj;
- }
- /**
- * 根据用户生日计算年龄
- */
- public static int getAgeByBirthday(Date birthday) {
- try {
- int age = 0;
- if (birthday == null) {
- return age;
- }
- String birth = new SimpleDateFormat("yyyyMMdd").format(birthday);
- int year = Integer.valueOf(birth.substring(0, 4));
- int month = Integer.valueOf(birth.substring(4, 6));
- int day = Integer.valueOf(birth.substring(6));
- Calendar cal = Calendar.getInstance();
- age = cal.get(Calendar.YEAR) - year;
- //周岁计算
- if (cal.get(Calendar.MONTH) < (month - 1) || (cal.get(Calendar.MONTH) == (month - 1) && cal.get(Calendar.DATE) < day)) {
- age--;
- }
- return age;
- } catch (Exception e) {
- return 0;
- }
- }
- /**
- * 字符串转时间
- * @param str 时间字符串
- * @param eg 格式
- * @return
- */
- public static Date stringToDate(String str, String eg) {
- DateFormat format = new SimpleDateFormat(eg);
- Date date = null;
- if (str != null && !"".equals(str)) {
- try {
- date = format.parse(str);
- } catch (Exception e) {
- return null;
- }
- }
- return date;
- }
- public static int getNowMonth(){
- Calendar cal = Calendar.getInstance();
- return cal.get(Calendar.MONTH)+1;
- }
- public static int getNowYear(){
- Calendar cal = Calendar.getInstance();
- return cal.get(Calendar.YEAR);
- }
- /**
- * 获取周一
- * @return
- */
- public static String getMondayOfThisWeek() {
- SimpleDateFormat df2 = new SimpleDateFormat("yyyy-MM-dd");
- Calendar c = Calendar.getInstance();
- int day_of_week = c.get(Calendar.DAY_OF_WEEK) - 1;
- if (day_of_week == 0)
- day_of_week = 7;
- c.add(Calendar.DATE, -day_of_week + 1);
- return df2.format(c.getTime());
- }
- /**
- * 得到本周周日
- *
- * @return yyyy-MM-dd
- */
- public static String getSundayOfThisWeek() {
- SimpleDateFormat df2 = new SimpleDateFormat("yyyy-MM-dd");
- Calendar c = Calendar.getInstance();
- int day_of_week = c.get(Calendar.DAY_OF_WEEK) - 1;
- if (day_of_week == 0)
- day_of_week = 7;
- c.add(Calendar.DATE, -day_of_week + 7);
- return df2.format(c.getTime());
- }
- /**
- * 获取当月第一天
- * @return
- */
- public static String getFristDayOfMonth() {
- SimpleDateFormat format = new SimpleDateFormat("yyyy-MM-dd");
- // 获取前月的第一天
- Calendar c = Calendar.getInstance();
- c.add(Calendar.MONTH, 0);
- c.set(Calendar.DAY_OF_MONTH,1);//设置为1号,当前日期既为本月第一天
- String first = format.format(c.getTime());
- return format.format(c.getTime());
- }
- /**
- * 获取当月最后一天
- */
- public static String getLastDayOfMonth(){
- SimpleDateFormat format = new SimpleDateFormat("yyyy-MM-dd");
- // 获取前月的第一天
- Calendar ca = Calendar.getInstance();
- ca.set(Calendar.DAY_OF_MONTH, ca.getActualMaximum(Calendar.DAY_OF_MONTH));
- return format.format(ca.getTime());
- }
- public static int getSignYear(){
- Calendar ca = Calendar.getInstance();
- if(getNowMonth()>=4){
- return getNowYear();
- }
- return getNowYear()-1;
- }
- /**
- * 计算预产期
- * 末次月经开始日期(第一天),月份+9,日期+7
- * @param date
- * @return
- */
- public static Date getDueDate(Date date){
- Calendar cal = Calendar.getInstance();
- cal.setTime(date);
- cal.add(Calendar.MONTH,9);
- cal.add(Calendar.DAY_OF_YEAR,7);
- return cal.getTime();
- }
- /**
- * 计算产检时间
- * @param date
- * @param day
- * @return
- */
- public static Date getPrenatalInspectorDate(Date date,Integer day){
- Calendar cal = Calendar.getInstance();
- cal.setTime(date);
- cal.add(Calendar.DAY_OF_YEAR,day);
- return cal.getTime();
- }
-
- /**
- * 转换日期字符串为Timestamp YYYY-MM-DD HH:MM:SS
- * @return
- */
- public static Timestamp fomrmatStringToTimeStamp(String dateStr){
-
- Timestamp ts = Timestamp.valueOf(dateStr);
-
- return ts;
- }
-
- /**
- * 获取当前时间的Timestamp
- * @return
- */
- public static Timestamp getNowTimestamp(){
- Date date = new Date();
- Timestamp nousedate = new Timestamp(date.getTime());
- return nousedate;
- }
- /**
- * 获取周一
- * @return
- */
- public static String getSundayOfThisDate(Date date) {
- SimpleDateFormat df2 = new SimpleDateFormat(YYYY_MM_DD_HH_MM_SS);
- return df2.format(getSundayOfThisDateToDate(date));
- }
- /**
- * 得到本周周日
- *
- * @return yyyy-MM-dd
- */
- public static Date getSundayOfThisDateToDate(Date date) {
- Calendar c = Calendar.getInstance();
- c.setTime(date);
- int day_of_week = c.get(Calendar.DAY_OF_WEEK) - 1;
- if (day_of_week == 0)
- day_of_week = 7;
- c.add(Calendar.DATE, -day_of_week + 7);
- return c.getTime();
- }
- }
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