package com.td.util; import java.sql.Timestamp; import java.text.ParseException; import java.text.ParsePosition; import java.text.SimpleDateFormat; import java.util.ArrayList; import java.util.Calendar; import java.util.Date; import java.util.GregorianCalendar; import java.util.List; import java.util.Locale; import java.util.Random; import org.apache.log4j.chainsaw.Main; /** * 超詳細的時間工具類 * @author Administrator * */ public class TimeUtil { //============================借助Calendar類獲取今天、昨天、本周、上周、本年及特定時間的開始時間和結束時間(返回類型為date類型)======================== /** * 獲取當天開始時間 * @return */ public static Date getDayBegin(){ Calendar cal=Calendar.getInstance(); cal.set(Calendar.HOUR_OF_DAY, 0);//0點 cal.set(Calendar.MINUTE, 0);//0分 cal.set(Calendar.SECOND, 0);//0秒 cal.set(Calendar.MILLISECOND, 0);//0毫秒 return cal.getTime(); } /** * 獲取當天結束時間 * @return */ public static Date getDayEnd(){ Calendar cal=Calendar.getInstance(); cal.set(Calendar.HOUR_OF_DAY, 23);//23點 cal.set(Calendar.MINUTE, 59);//59分 cal.set(Calendar.SECOND, 59);//59秒 return cal.getTime(); } /** * 獲取昨天開始時間 * @return */ public static Date getBeginDayOfYesterday(){ Calendar cal=Calendar.getInstance(); cal.setTime(getDayBegin());//當天開始時間 cal.add(Calendar.DAY_OF_MONTH, -1);//當天月份天數減1 return cal.getTime(); } /** * 獲取昨天結束時間 * @return */ public static Date getEndDayOfYesterday(){ Calendar cal=Calendar.getInstance(); cal.setTime(getDayEnd());//當天結束時間 cal.add(Calendar.DAY_OF_MONTH, -1);//當天月份天數減1 return cal.getTime(); } /** * 獲取明天開始時間 * @return */ public static Date getBeginDayOfTomorrow(){ Calendar cal=Calendar.getInstance(); cal.setTime(getDayBegin());//當天開始時間 cal.add(Calendar.DAY_OF_MONTH, 1);//當天月份天數加1 return cal.getTime(); } /** * 獲取明天結束時間 * @return */ public static Date getEndDayOfTomorrow(){ Calendar cal=Calendar.getInstance(); cal.setTime(getDayEnd());//當天結束時間 cal.add(Calendar.DAY_OF_MONTH, 1);//當天月份天數加1 return cal.getTime(); } /** * 獲取某個日期的開始時間 * @param d * @return */ public static Timestamp getDayStartTime(Date d) { Calendar calendar=Calendar.getInstance(); if(null!=d){ calendar.setTime(d); } calendar.set(calendar.get(Calendar.YEAR), calendar.get(Calendar.MONTH), calendar.get(Calendar.DAY_OF_MONTH), 0, 0, 0); calendar.set(Calendar.MILLISECOND, 0); return new Timestamp(calendar.getTimeInMillis()); } /** * 獲取某個日期的結束時間 * @param d * @return */ public static Timestamp getDayEndTime(Date d) { Calendar calendar=Calendar.getInstance(); if(null!=d){ calendar.setTime(d); } calendar.set(calendar.get(Calendar.YEAR), calendar.get(Calendar.MONTH), calendar.get(Calendar.DAY_OF_MONTH), 23, 59, 59); calendar.set(Calendar.MILLISECOND, 999); return new Timestamp(calendar.getTimeInMillis()); } /** * 獲取本周的開始時間 * @return */ @SuppressWarnings("unused") public static Date getBeginDayOfWeek(){ Date date=new Date(); if(date==null){ return null; } Calendar cal=Calendar.getInstance(); cal.setTime(date); int dayOfWeek=cal.get(Calendar.DAY_OF_WEEK); if(dayOfWeek==1){ dayOfWeek+=7; } cal.add(Calendar.DATE, 2-dayOfWeek); return getDayStartTime(cal.getTime()); } /** * 獲取本周的結束時間 * @return */ public static Date getEndDayOfWeek(){ Calendar cal=Calendar.getInstance(); cal.setTime(getBeginDayOfWeek()); cal.add(Calendar.DAY_OF_WEEK, 6); Date weekEndSta = cal.getTime(); return getDayEndTime(weekEndSta); } /** * 獲取上周開始時間 */ @SuppressWarnings("unused") public static Date getBeginDayOfLastWeek() { Date date=new Date(); if (date==null) { return null; } Calendar cal=Calendar.getInstance(); cal.setTime(date); int dayofweek=cal.get(Calendar.DAY_OF_WEEK); if (dayofweek==1) { dayofweek+=7; } cal.add(Calendar.DATE, 2-dayofweek-7); return getDayStartTime(cal.getTime()); } /** * 獲取上周的結束時間 * @return */ public static Date getEndDayOfLastWeek(){ Calendar cal=Calendar.getInstance(); cal.setTime(getBeginDayOfLastWeek()); cal.add(Calendar.DAY_OF_WEEK, 6); Date weekEndSta = cal.getTime(); return getDayEndTime(weekEndSta); } /** * 獲取今年是哪一年 * @return */ public static Integer getNowYear(){ Date date = new Date(); GregorianCalendar gc=(GregorianCalendar)Calendar.getInstance(); gc.setTime(date); return Integer.valueOf(gc.get(1)); } /** * 獲取本月是哪一月 * @return */ public static int getNowMonth() { Date date = new Date(); GregorianCalendar gc=(GregorianCalendar)Calendar.getInstance(); gc.setTime(date); return gc.get(2) + 1; } /** * 獲取本月的開始時間 * @return */ public static Date getBeginDayOfMonth() { Calendar calendar=Calendar.getInstance(); calendar.set(getNowYear(), getNowMonth()-1, 1); return getDayStartTime(calendar.getTime()); } /** * 獲取本月的結束時間 * @return */ public static Date getEndDayOfMonth() { Calendar calendar=Calendar.getInstance(); calendar.set(getNowYear(), getNowMonth()-1, 1); int day = calendar.getActualMaximum(5); calendar.set(getNowYear(), getNowMonth()-1, day); return getDayEndTime(calendar.getTime()); } /** * 獲取上月的開始時間 * @return */ public static Date getBeginDayOfLastMonth() { Calendar calendar=Calendar.getInstance(); calendar.set(getNowYear(), getNowMonth()-2, 1); return getDayStartTime(calendar.getTime()); } /** * 獲取上月的結束時間 * @return */ public static Date getEndDayOfLastMonth() { Calendar calendar=Calendar.getInstance(); calendar.set(getNowYear(), getNowMonth()-2, 1); int day = calendar.getActualMaximum(5); calendar.set(getNowYear(), getNowMonth()-2, day); return getDayEndTime(calendar.getTime()); } /** * 獲取本年的開始時間 * @return */ public static java.util.Date getBeginDayOfYear() { Calendar cal=Calendar.getInstance(); cal.set(Calendar.YEAR, getNowYear()); cal.set(Calendar.MONTH, Calendar.JANUARY); cal.set(Calendar.DATE, 1); return getDayStartTime(cal.getTime()); } /** * 獲取本年的結束時間 * @return */ public static java.util.Date getEndDayOfYear() { Calendar cal = Calendar.getInstance(); cal.set(Calendar.YEAR, getNowYear()); cal.set(Calendar.MONTH, Calendar.DECEMBER); cal.set(Calendar.DATE, 31); return getDayEndTime(cal.getTime()); } /** * 兩個日期相減得到的天數 * @param beginDate * @param endDate * @return */ public static int getDiffDays(Date beginDate, Date endDate) { if(beginDate==null||endDate==null) { throw new IllegalArgumentException("getDiffDays param is null!"); } long diff=(endDate.getTime()-beginDate.getTime())/(1000*60*60*24); int days = new Long(diff).intValue(); return days; } /** * 兩個日期相減得到的毫秒數 * @param beginDate * @param endDate * @return */ public static long dateDiff(Date beginDate, Date endDate) { long date1ms=beginDate.getTime(); long date2ms=endDate.getTime(); return date2ms-date1ms; } /** * 獲取兩個日期中的最大日起 * @param beginDate * @param endDate * @return */ public static Date max(Date beginDate, Date endDate) { if(beginDate==null) { return endDate; } if(endDate==null) { return beginDate; } if(beginDate.after(endDate)) {//beginDate日期大於endDate return beginDate; } return endDate; } /** * 獲取兩個日期中的最小日期 * @param beginDate * @param endDate * @return */ public static Date min(Date beginDate, Date endDate) { if(beginDate==null) { return endDate; } if(endDate==null) { return beginDate; } if(beginDate.after(endDate)) { return endDate; } return beginDate; } /** * 獲取某月該季度的第一個月 * @param date * @return */ public static Date getFirstSeasonDate(Date date) { final int[] SEASON={ 1, 1, 1, 2, 2, 2, 3, 3, 3, 4, 4, 4 }; Calendar cal=Calendar.getInstance(); cal.setTime(date); int sean = SEASON[cal.get(Calendar.MONTH)]; cal.set(Calendar.MONTH, sean*3-3); return cal.getTime(); } /** * 返回某個日期下幾天的日期 * @param date * @param i * @return */ public static Date getNextDay(Date date, int i) { Calendar cal=new GregorianCalendar(); cal.setTime(date); cal.set(Calendar.DATE,cal.get(Calendar.DATE)+i); return cal.getTime(); } /** * 返回某個日期前幾天的日期 * @param date * @param i * @return */ public static Date getFrontDay(Date date, int i) { Calendar cal=new GregorianCalendar(); cal.setTime(date); cal.set(Calendar.DATE, cal.get(Calendar.DATE)-i); return cal.getTime(); } /** * 獲取某年某月按天切片日期集合(某個月間隔多少天的日期集合) * @param beginYear * @param beginMonth * @param k * @return */ @SuppressWarnings({ "unchecked", "rawtypes" }) public static List getTimeList(int beginYear, int beginMonth, int k) { List list = new ArrayList(); Calendar begincal=new GregorianCalendar(beginYear,beginMonth, 1); int max = begincal.getActualMaximum(Calendar.DATE); for (int i = 1; i < max; i = i + k) { list.add(begincal.getTime()); begincal.add(Calendar.DATE, k); } begincal = new GregorianCalendar(beginYear, beginMonth, max); list.add(begincal.getTime()); return list; } /** * 獲取某年某月到某年某月按天的切片日期集合(間隔天數的集合) * @param beginYear * @param beginMonth * @param endYear * @param endMonth * @param k * @return */ @SuppressWarnings({ "rawtypes", "unchecked" }) public static List getTimeList(int beginYear,int beginMonth,int endYear,int endMonth, int k) { List list = new ArrayList(); if (beginYear==endYear){ for(int j=beginMonth;j<=endMonth;j++){ list.add(getTimeList(beginYear,j,k)); } }else{ { for(int j=beginMonth;j<12;j++){ list.add(getTimeList(beginYear,j,k)); } for(int i=beginYear+1;i<endYear;i++) { for (int j=0; j<12; j++) { list.add(getTimeList(i,j,k)); } } for (int j=0;j <= endMonth; j++) { list.add(getTimeList(endYear, j, k)); } } } return list; } //=================================時間格式轉換========================== /** * date類型進行格式化輸出(返回類型:String) * @param date * @return */ public static String dateFormat(Date date) { SimpleDateFormat formatter = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss"); String dateString = formatter.format(date); return dateString; } /** * 將"2015-08-31 21:08:06"型字符串轉化為Date * @param str * @return * @throws ParseException */ public static Date StringToDate(String str) throws ParseException{ SimpleDateFormat formatter = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss"); Date date = (Date) formatter.parse(str); return date; } /** * 將CST時間類型字符串進行格式化輸出 * @param str * @return * @throws ParseException */ public static String CSTFormat(String str) throws ParseException{ SimpleDateFormat formatter = new SimpleDateFormat("EEE MMM dd HH:mm:ss zzz yyyy", Locale.US); Date date = (Date) formatter.parse(str); return dateFormat(date); } /** * 將long類型轉化為Date * @param str * @return * @throws ParseException */ public static Date LongToDare(long str) throws ParseException{ return new Date(str * 1000); } //====================================其他常見日期操作方法====================== /** * 判斷當前日期是否在[startDate, endDate]區間 * * @param startDate 開始日期 * @param endDate 結束日期 * @author jqlin * @return */ public static boolean isEffectiveDate(Date startDate, Date endDate){ if(startDate == null || endDate == null){ return false; } long currentTime = new Date().getTime(); if(currentTime >= startDate.getTime() && currentTime <= endDate.getTime()){ return true; } return false; } /** * 得到二個日期間的間隔天數 * @param secondString:后一個日期 * @param firstString:前一個日期 * @return */ public static String getTwoDay(String secondString, String firstString) { SimpleDateFormat myFormatter = new SimpleDateFormat("yyyy-MM-dd"); long day = 0; try { java.util.Date secondTime = myFormatter.parse(secondString); java.util.Date firstTime = myFormatter.parse(firstString); day = (secondTime.getTime() - firstTime.getTime()) / (24 * 60 * 60 * 1000); } catch (Exception e) { return ""; } return day + ""; } /** * 時間前推或后推分鍾,其中JJ表示分鍾. * @param StringTime:時間 * @param minute:分鍾(有正負之分) * @return */ public static String getPreTime(String StringTime, String minute) { SimpleDateFormat format = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss"); String mydate1 = ""; try { Date date1 = format.parse(StringTime); long Time = (date1.getTime() / 1000) + Integer.parseInt(minute) * 60; date1.setTime(Time * 1000); mydate1 = format.format(date1); } catch (Exception e) { return ""; } return mydate1; } /** * 將短時間格式字符串轉換為時間 yyyy-MM-dd * * @param strDate * @return */ public static Date strToDate(String strDate) { SimpleDateFormat formatter = new SimpleDateFormat("yyyy-MM-dd"); ParsePosition pos = new ParsePosition(0); Date strtodate = formatter.parse(strDate, pos); return strtodate; } /** * 得到一個時間延后或前移幾天的時間 * @param nowdate:時間 * @param delay:前移或后延的天數 * @return */ public static String getNextDay(String nowdate, String delay) { try{ SimpleDateFormat format = new SimpleDateFormat("yyyy-MM-dd"); String mdate = ""; Date d = strToDate(nowdate); long myTime = (d.getTime() / 1000) + Integer.parseInt(delay) * 24 * 60 * 60; d.setTime(myTime * 1000); mdate = format.format(d); return mdate; }catch(Exception e){ return ""; } } /** * 判斷是否閏年 * @param ddate * @return */ public static boolean isLeapYear(String ddate) { /** * 詳細設計: 1.被400整除是閏年,否則: 2.不能被4整除則不是閏年 3.能被4整除同時不能被100整除則是閏年 * 3.能被4整除同時能被100整除則不是閏年 */ Date d = strToDate(ddate); 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; } } /** * 返回美國時間格式 * @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); } /** * 判斷二個時間是否在同一個周 * @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月的最后一周橫跨來年第一周的話則最后一周即算做來年的第一周 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; } /** * 產生周序列,即得到當前時間所在的年度是第幾周 * @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 +"年第"+ week+"周"; } /** * 獲得一個日期所在的周的星期幾的日期,如要找出2002年2月3日所在周的星期一是幾號 * @param sdate:日期 * @param num:星期幾(星期天是一周的第一天) * @return */ public static String getWeek(String sdate, String num) { // 再轉換為時間 Date dd = strToDate(sdate); 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()); } /** * 根據一個日期,返回是星期幾的字符串 * @param sdate * @return */ public static String getWeek(String sdate) { // 再轉換為時間 Date date = strToDate(sdate); Calendar c = Calendar.getInstance(); c.setTime(date); // int hour=c.get(Calendar.DAY_OF_WEEK); // hour中存的就是星期幾了,其范圍 1~7 // 1=星期日 7=星期六,其他類推 return new SimpleDateFormat("EEEE").format(c.getTime()); } /** * 根據一個日期,返回是星期幾的字符串 * @param sdate * @return */ public static String getWeekStr(String sdate){ String str = ""; str = 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; } /** * 兩個時間之間的天數 * @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; // 轉換為標准時間 SimpleDateFormat myFormatter = new SimpleDateFormat("yyyy-MM-dd"); java.util.Date date = null; java.util.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; } /** * 形成如下的日歷 , 根據傳入的一個時間返回一個結構 星期日 星期一 星期二 星期三 星期四 星期五 星期六 下面是當月的各個時間 * 此函數返回該日歷第一行星期日所在的日期 * @param sdate * @return */ public static String getNowMonth(String sdate) { // 取該時間所在月的一號 sdate = sdate.substring(0, 8) + "01"; // 得到這個月的1號是星期幾 Date date = strToDate(sdate); Calendar c = Calendar.getInstance(); c.setTime(date); int u = c.get(Calendar.DAY_OF_WEEK); String newday = getNextDay(sdate, (1 - u) + ""); return newday; } /** * 根據用戶傳入的時間表示格式,返回當前時間的格式 如果是yyyyMMdd,注意字母y不能大寫 * @param sformat * @return */ public static String getUserDate(String sformat) { Date currentTime = new Date(); SimpleDateFormat formatter = new SimpleDateFormat(sformat); String dateString = formatter.format(currentTime); return dateString; } /** * 返回一個i位數的隨機數 * @param i * @return */ public static String getRandom(int i) { Random jjj = new Random(); // int suiJiShu = jjj.nextInt(9); if (i == 0) return ""; String jj = ""; for (int k = 0; k < i; k++) { jj = jj + jjj.nextInt(9); } return jj; } /** * 取得數據庫主鍵 生成格式為yyyymmddhhmmss+k位隨機數 * @param k:表示是取幾位隨機數,可以自己定 * @return */ public static String getNo(int k) { return getUserDate("yyyyMMddhhmmss") + getRandom(k); } public static void main(String[] args) { System.out.println(getNo(8)); } }