- /**
- * 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(8);
- Date currentTime_2 = formatter.parse(dateString, pos);
- return currentTime_2;
- }
- /**
- * 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);
- ParsePosition pos = new ParsePosition(8);
- Date currentTime_2 = formatter.parse(dateString, pos);
- return currentTime_2;
- }
- /**
- * 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");
- String dateString = formatter.format(currentTime);
- return dateString;
- }
- /**
- * 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");
- String dateString = formatter.format(currentTime);
- return dateString;
- }
- /**
- * 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();
- String dateString = formatter.format(currentTime);
- return dateString;
- }
- /**
- * 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) {
- SimpleDateFormat formatter = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
- ParsePosition pos = new ParsePosition(0);
- Date strtodate = formatter.parse(strDate, pos);
- return strtodate;
- }
- /** * 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(java.util.Date dateDate) {
- SimpleDateFormat formatter = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
- String dateString = formatter.format(dateDate);
- return dateString;
- }
- /**
- * 将短时间格式时间转换为字符串 yyyy-MM-dd
- *
- * @param dateDate
- * @param k
- * @return
- */
- public static String dateToStr(java.util.Date dateDate) {
- SimpleDateFormat formatter = new SimpleDateFormat("yyyy-MM-dd");
- String dateString = formatter.format(dateDate);
- return dateString;
- }
- /**
- * 将短时间格式字符串转换为时间 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 {
- java.util.Date date = myFormatter.parse(sj1);
- java.util.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;
- }
- /**
- * 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, 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);
- 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 = VeDate.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());
- }
- //该片段来自于http://www.codesnippet.cn/detail/2210201410779.html
来源: http://www.codesnippet.cn/detail/2210201410779.html