package com.resuce.common.util; import java.text.ParseException; import java.text.SimpleDateFormat; import java.util.Calendar; import java.util.Date; import java.util.regex.Matcher; import java.util.regex.Pattern; import org.apache.commons.lang.StringUtils; public class DateUtil { public static final String TIMEFULL = "yyyyMMddHHmmss"; public static final String TIMEFULL_MS = "yyyyMMddHHmm"; public static final String TIMEFULL_SS = "yyyy-MM-dd HH:mm:ss"; public static final String TIMETomm = "yyyyMMddHHmm"; public static final String TIMEDATE = "yyyyMMdd"; public static final String TIMEDATE_SHORT = "yyMMdd"; public static final long ONEDAY = 24L * 60L * 60L * 1000L; public static final long THREE_MONTH = 90L * ONEDAY; public static final int SECOND = 1000; public static final int MINUTE = SECOND * 60; public static final int HOUR = MINUTE * 60; public static final int DAY = HOUR * 24; /** * //日期to字符串 * * @param date * @param strFormat yyyy-MM-dd hh:mm:ss * @return * @throws Exception */ public static String dateToStr(Date date, String strFormat) { String result = null; try { if (date != null) { SimpleDateFormat format = new SimpleDateFormat(strFormat); result = format.format(date); } } catch (Exception e) { e.printStackTrace(); } return result; } public static String dateToStr(Date date) { String result = null; if (date != null) { SimpleDateFormat format = new SimpleDateFormat("yyyy-MM-dd"); result = format.format(date); } return result; } /** * 字符串to 日期 * * @param dateStr * @param strFormat * @return * @throws Exception */ public static Date strToDate(String dateStr, String strFormat){ Date date = new Date(); try{ SimpleDateFormat strToDate = new SimpleDateFormat(strFormat); date = strToDate.parse(dateStr); }catch(Exception e){ return null; } return date; } public static Date strToDate(String dateStr) { Date date = null; SimpleDateFormat strToDate = new SimpleDateFormat("yyyy-MM-dd"); try { date = strToDate.parse(dateStr); } catch (ParseException e) { // TODO Auto-generated catch block e.printStackTrace(); return null; } return date; } public static Date systime() throws Exception { Date date = new Date(); SimpleDateFormat strToDate = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss"); date = strToDate.parse(formatDateTime(date)); return date; } /* * 将日期格式为YYYY-MM-DD param date 日期 */ public static String format(Date date) { if(date == null){ return ""; } SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd"); return sdf.format(date); } /* * 将日期格式为yyyy-MM-DD hh:mm:ss param date 日期时间 */ public static String formatDateTime(Date date) { SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss"); return sdf.format(date); } /* * 将日期格式为yyyy-MM-DD hh:mm:ss param date 日期时间 */ public static Date parseDateTime(Date date) { SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd"); String dateStr = sdf.format(date); return formatStrToDate(dateStr); } /* * 将日期格式为hh:mm:ss param date 时间 */ public static String formatTime(Date date) { SimpleDateFormat sdf = new SimpleDateFormat("hh:mm:ss"); return sdf.format(date); } /* * 将日期格式为YYYY-MM-DD param date 日期 */ public static String format() { SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd"); return sdf.format(new Date()); } /* * 将日期格式为YYYY-MM-DD param date 日期 */ public static String formatDateTime() { SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss"); return sdf.format(new Date()); } /* * 将日期格式为hh:mm:ss param date 时间 */ public static String formatTime() { SimpleDateFormat sdf = new SimpleDateFormat("hh:mm:ss"); return sdf.format(new Date()); } /* * 将日期格式为指定格式 日期字符串 */ public static String formatTime(String dateFormatStr) { SimpleDateFormat sdf = new SimpleDateFormat(dateFormatStr); return sdf.format(new Date()); } public static String getYYMMDDStr() { SimpleDateFormat sdf = new SimpleDateFormat(TIMEDATE_SHORT); return sdf.format(new Date()); } public static String getYYYYMMDDStr() { SimpleDateFormat sdf = new SimpleDateFormat(TIMEDATE); return sdf.format(new Date()); } /* * 将日期格式为指定格式 日期字符串 */ public static String formatTime(Date date, String dateFormatStr) { SimpleDateFormat sdf = new SimpleDateFormat(dateFormatStr); return sdf.format(date); } /* * 将日期字符串转化为Date */ @SuppressWarnings("finally") public static Date formatStrToDate(String dateStr) { SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd"); Date date = null; try { date = sdf.parse(dateStr); } catch (ParseException e) { e.printStackTrace(); } finally { return date; } } /* * 将日期字符串转化为Date */ @SuppressWarnings("finally") public static Date formatStrToDate(String dateStr, String exp) { SimpleDateFormat sdf = new SimpleDateFormat(exp); Date date = null; try { date = sdf.parse(dateStr); } catch (ParseException e) { e.printStackTrace(); } finally { return date; } } /* * 将两位年日期字符串转化为Date */ @SuppressWarnings("finally") public static Date format2YearStrToDate(String dateStr) { SimpleDateFormat sdf = new SimpleDateFormat("yy-MM-dd"); Date date = null; try { date = sdf.parse(dateStr); } catch (ParseException e) { e.printStackTrace(); } finally { return date; } } /* * 将日期字符串转化为Date */ @SuppressWarnings("finally") public static Date formatLoastModifyDateStrToDate(String dateStr) { if (!CheckUtil.checkValue(dateStr) && dateStr.length() > 3) return null; if (dateStr.endsWith("GMT") || dateStr.endsWith("UTC")) { dateStr = dateStr.substring(4, dateStr.length() - 3).trim(); } dateStr = processorDateStr(dateStr); SimpleDateFormat sdf = new SimpleDateFormat("dd-MM-yyyy-HH:mm:ss"); Date date = null; try { date = sdf.parse(dateStr); } catch (ParseException e) { e.printStackTrace(); } finally { return date; } } /* * 将日期字符串转化为Date */ @SuppressWarnings("finally") public static Date formatDateTimeStrToDate(String dateStr) { if (!CheckUtil.checkValue(dateStr) && dateStr.length() > 3) return null; SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss"); Date date = null; try { date = sdf.parse(dateStr); } catch (ParseException e) { e.printStackTrace(); } finally { return date; } } /* * 将日期字符串转化为Date */ @SuppressWarnings("finally") public static Date formatDateTimeStrToDate2(String dateStr) { if (!CheckUtil.checkValue(dateStr) && dateStr.length() > 3) return null; SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss"); Date date = null; try { date = sdf.parse(dateStr); } catch (ParseException e) { e.printStackTrace(); } finally { return date; } } /* * 将日期字符串转化为Date */ @SuppressWarnings("finally") public static Date formatYearStrToDate(String dateStr) { SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM"); Date date = null; try { date = sdf.parse(dateStr); } catch (ParseException e) { e.printStackTrace(); } finally { return date; } } /* * 将日期字符串转化为Date */ @SuppressWarnings("finally") public static Date formatYearStrToDate(String dateStr, String separator) { SimpleDateFormat sdf = new SimpleDateFormat("yyyy" + separator + "MM"); Date date = null; try { date = sdf.parse(dateStr); } catch (ParseException e) { e.printStackTrace(); } finally { return date; } } public static String processorDateStr(String dateStr) { if (!CheckUtil.checkValue(dateStr)) { return null; } String[] months = { "Jan", "Feb", "Mar", "Apr", "May", "Jun", "Jul", "Aug", "Sep", "Oct", "Nov", "Dec" }; String[] numMonths = { "01", "02", "03", "04", "05", "06", "07", "08", "09", "10", "11", "12" }; dateStr = dateStr.replaceAll("\s", "-"); for (int i = 0; i < 12; i++) { int index = dateStr.indexOf(months[i].trim()); if (index >= 0) { dateStr = dateStr.replaceAll(months[i], numMonths[index]); return dateStr; } } return dateStr; } public static boolean isDate(String value) { String regex = "^[0-9]{2,4}[-][0-9]{1,2}[-][0-9]{1,2}$"; if (value == null) { return false; } Pattern p = Pattern.compile(regex); Matcher m = p.matcher(value); return m.find(); } public static Date getDate(String dateStr) { if (CheckUtil.checkEmpyt(dateStr)) { return new Date(0); } String regex = "[0-9]{2,4}[-][0-9]{1,2}[-][0-9]{1,2}"; Pattern p = Pattern.compile(regex); Matcher m = p.matcher(dateStr); if (m.find()) { String dStr = m.group(); return DateUtil.formatStrToDate(dStr); } return new Date(0); } public static boolean isDateTime(String value) { String regex = "^[0-9]{2,4}[-][0-9]{1,2}[-][0-9]{1,2}\s*[0-9]{2}[:][0-9]{2}[:][0-9]{2}$"; if (value == null) { return false; } Pattern p = Pattern.compile(regex); Matcher m = p.matcher(value); return m.find(); } /* * 转化为Date */ @SuppressWarnings("finally") public static Date formatDateTimeStrToDate2(Date date, String regex) { if (date == null || !CheckUtil.checkEmpyt(regex)) return date; SimpleDateFormat sdf = new SimpleDateFormat(regex); // Date date = null; // System.out.println("asdfasdfasdf"); try { String dateStr = sdf.format(date); // System.out.println(dateStr); date = sdf.parse(dateStr); } catch (ParseException e) { e.printStackTrace(); } finally { return date; } } public static boolean isDate(String value, String spe) { String regex = "^[0-9]{2,4}[" + spe + "][0-9]{1,2}$"; if (value == null) { return false; } Pattern p = Pattern.compile(regex); Matcher m = p.matcher(value); return m.find(); } /* * 获取日期中的年份 */ public static String getYear(Date date) { SimpleDateFormat sdf = new SimpleDateFormat("yyyy"); return sdf.format(date); } /* * 获取日期中的月份 */ public static String getMonth(Date date) { SimpleDateFormat sdf = new SimpleDateFormat("MM"); return sdf.format(date); } private static String getExps(String value, String[] exps, String[] space) { // String dateExp = null; for (String spa : space) { for (String exp : exps) { String tempExp = exp.replaceAll("#", spa); String[] items = tempExp.split("\|"); if (!CheckUtil.checkEmpyt(items) || items.length != 2) { continue; } Pattern p = Pattern.compile(items[0]); Matcher m = p.matcher(value); if (m.find()) { return items[1]; } } } return null; } /** * 将日期字符串转换为Date，注，如果没有年份的，则转换出的值为1970年XX月XX日,如果没有月份，则为01月,如果年月都没有, * 则为1970年01月X日 将日期转换为Date,如果日期字符串中没有年，则默认为系统当前年份,如果得出的日期大于当前的年份，则减少一年 * @param value 日期字符表达式 * @param isReduce 指示是否需需要减小一年,false不减少，true减小 */ public static Date toDate(String value, boolean isReduce) { if (!CheckUtil.checkEmpyt(value)) return null; value = value.replaceAll(" ", " "); int sign = 0; String[] space = { "-", "/", "." }; String[] timeSpace = { ":" }; String[] regexExpsYMD = { "[0-9]{4}[#][0-9]{2}[#][0-9]{2}|yyyy#MM#dd", "[0-9]{4}[#][0-9]{1}[#][0-9]{1}|yyyy#M#d", "[0-9]{4}[#][0-9]{1}[#][0-9]{2}|yyyy#M#dd", "[0-9]{4}[#][0-9]{2}[#][0-9]{1}||yyyy#MM#d", "[0-9]{2}[#][0-9]{2}[#][0-9]{2}|yy#MM#dd", "[0-9]{2}[#][0-9]{1}[#][0-9]{1}|yy#M#d", "[0-9]{2}[#][0-9]{1}[#][0-9]{2}|yy#M#dd", "[0-9]{2}[#][0-9]{2}[#][0-9]{1}|yy#MM#d" }; String[] regexExpsYM = { "[0-9]{4}[#][0-9]{2}|yyyy#MM", "[0-9]{4}[#][0-9]{1}|yyyy#M" }; String[] regexExpsMd = { "[0-9]{2}[#][0-9]{2}|MM#dd", "[0-9]{2}[#][0-9]{1}|MM#d", "[0-9]{1}[#][0-9]{1}|M#d", "[0-9]{1}[#][0-9]{2}|#M#d" }; String[] regexExpsD = { "[0-9]{2}|dd", "[0-9]{1}|d" }; // String[] timeExpHMS = { "\s[0-9]{2}[:][0-9]{2}[:][0-9]{2}|HH#mm#ss", // "\s?[0-9]{2}[:][0-9]{2}[:][0-9]{1}|HH#mm#s", // "\s?[0-9]{2}[:][0-9]{1}[:][0-9]{2}|HH#m#ss" }; String[] timeExpHMS = { "\s[0-9]{2}[:][0-9]{2}[:][0-9]{2}|HH#mm#ss", "\s?[0-9]{2}[:][0-9]{2}[:][0-9]{1}|HH#mm#s", "\s?[0-9]{2}[:][0-9]{1}[:][0-9]{2}|HH#m#ss", "\s?[0-9]{1}[:][0-9]{1}[:][0-9]{2}|H#m#ss", "\s?[0-9]{1}[:][0-9]{1}[:][0-9]{1}|H#m#s", "\s?[0-9]{1}[:][0-9]{2}[:][0-9]{1}|H#mm#s", "\s?[0-9]{1}[:][0-9]{2}[:][0-9]{2}|H#mm#ss", "\s?[0-9]{2}[:][0-9]{1}[:][0-9]{2}|HH#m#ss", "\s?[0-9]{2}[:][0-9]{2}[:][0-9]{1}|HH#mm#s" }; String[] timeExpHM = { "\s[0-9]{2}[:][0-9]{2}|HH#mm" }; String[] timeExpH = { "\s[0-9]{2}|HH" }; String dateExp = getExps(value, regexExpsYMD, space); if (dateExp == null) dateExp = getExps(value, regexExpsYM, space); if (dateExp == null) { dateExp = getExps(value, regexExpsMd, space); if (dateExp != null) { sign = 1; } } if (dateExp == null) { dateExp = getExps(value, regexExpsD, space); if (dateExp != null) { sign = 1; } } String timeExp = getExps(value, timeExpHMS, timeSpace); if (timeExp == null) timeExp = getExps(value, timeExpHM, timeSpace); if (timeExp == null) timeExp = getExps(value, timeExpH, timeSpace); String exp = ""; if (CheckUtil.checkEmpyt(dateExp) && CheckUtil.checkEmpyt(timeExp)) { exp = dateExp + " " + timeExp; } else if (CheckUtil.checkEmpyt(dateExp)) { exp = dateExp; } else if (CheckUtil.checkEmpyt(timeExp)) { exp = timeExp; } if (CheckUtil.checkEmpyt(exp)) { Date date = formatStrToDate(value, exp); if (sign != 0) { long years = formatStrToDate(getYear(new Date()), "yyyy").getTime() - formatStrToDate(getYear(date), "yyyy").getTime(); Date curDate = new Date(date.getTime() + years); if (isReduce) { years = formatStrToDate(getYear(new Date()), "yyyy").getTime() - formatStrToDate(new Integer(new Integer(getYear(date)).intValue() + 1).toString(), "yyyy").getTime(); } else { years = formatStrToDate(getYear(new Date()), "yyyy").getTime() - formatStrToDate(new Integer(new Integer(getYear(date)).intValue()).toString(), "yyyy").getTime(); } return new Date(date.getTime() + 24L * 3600L * 1000L + years); } return date; } return null; } public static Date toZhDate(String dateStr) { if (!CheckUtil.checkEmpyt(dateStr)) { return null; } return toZhDate(dateStr, false); } public static Date toZhDate(String dateStr, boolean isReduce) { if (!CheckUtil.checkEmpyt(dateStr)) { return null; } dateStr = dateStr.replaceAll("[u4e00-u9fa5]{1,}[-/_=*+.－／—＋。＊][u4e00-u9fa5]{1,}", ""); dateStr = resetDateStr(dateStr); dateStr = dateStr.replaceAll("年", "-").replaceAll("月", "-").replaceAll("日", "").replaceAll("小时", ":").replaceAll("点", ":").replaceAll("时", ":").replaceAll("分钟", ":").replaceAll("分", ":").replaceAll("秒钟", ":").replaceAll("秒", ""); dateStr = dateStr.replaceAll("[u4e00-u9fa5]{1,}", "").replaceAll("::", ":").replaceAll("--", "-").replaceAll("//", "-").replaceAll("/-", "-").replaceAll("-/", "-").replaceAll("/-", "-").replaceAll(":/", ":").replaceAll("/:", ":") .replaceAll(":-", ":").replaceAll("-:", ":"); if (dateStr.endsWith(":") || dateStr.endsWith("-") || dateStr.endsWith("/")) { dateStr = dateStr.substring(0, dateStr.length() - 1); } if (dateStr.startsWith(":") || dateStr.startsWith("-") || dateStr.startsWith("/")) { dateStr = dateStr.substring(1, dateStr.length()); } return toDate(dateStr, isReduce); } public static String resetDateStr(String dateStr) { Pattern p = Pattern.compile("[0-9]{0,4}[-年份/_#.;]{0,2}[0-9]{0,2}[-月份/_#.;]{1,2}[0-9]{0,2}[-日天/_#.;]{1,2}[\s ]{1,}[0-9]{0,2}[:点时小/_#.;]{0,2}[0-9]{0,2}[:分钟/_#.;]{0,2}[0-9]{0,2}[:秒钟/_#.;]{0,2}"); Matcher m = p.matcher(dateStr); String value = dateStr; while (m.find()) { value = m.group(); if (value.length() <= 2) continue; break; } return value; } public static void main (String[] args) { // u4e00-u9fa5表示中文,uFF00-uFFFF表示全角 其它表示一些特殊字符. // Date date = toDate("2011-11-15 15:32:48", false); // Date date2 = toZhDate("2011年11月15日 15点02分36秒"); // Date date3 = toZhDate("2011年1月"); // // Date date4 = toZhDate("绩效考核 2011-6-13 13:09:47"); // System.out.println(date3); // System.out.println(date2); // System.out.println(date); // // System.out.println(date4); // System.out.println(toDate("11/24 08:46", false)); // System.out.println(formatDateTime(toDate("11/24 08:46", true))); // System.out.println(formatDateTime(toDate("11/24 08:46", false))); // // System.out.println(formatDateTime(date)); // System.out.println(toZhDate("重庆商报 01月06日 13:18")); // System.out.println(toZhDate("重庆商报-分社 01月06日 13:18")); // System.out.println(toZhDate("2012年01月06日 13:57")); // // // System.out.println(" (重庆商报 01月06日 13:18)".replaceAll("[u4e00-u9fa5]{1,}", // // "")); // System.out.println(toZhDate("2012年01月06日 13点57分")); // System.out.println(toZhDate("重庆商报*分社 2012年/01月/06日 13点:57分:29秒")); // System.out.println(toZhDate("重庆商报*分社2012年/01月/06日 13点:57分:29秒")); // System.out.println(toZhDate("c114.net 2012年/01月/06日 13点:57分:29秒")); // System.out.println(toZhDate("c114.net 2012年/01月/06日 13点:57分:29秒")); // System.out.println(toZhDate("四川在线-天府早报 01月06日 10:26")); // System.out.println(toZhDate("1/4")); // System.out.println(toZhDate("2012-1-10 9:35:35")); // System.out.println("2012-1-10 9:35:35"); // System.out.println(resetDateStr("2012-1-10 9:35:35")); // System.out.println(toZhDate("2012-1-10 9:1:33")); // System.out.println(toZhDate(" 新浪科技 01月11日 11:37",true)); System.out.println(DateUtil.formatDateTime(toZhDate(" 北京晚报 04月09日 15:10", false))); System.out.println(DateUtil.formatDateTime(toZhDate("2011/12/31 09:51", false))); // System.out.println("c114.net.cn.g 2012年01月06日 13点:57分:29秒".replaceAll("(^[\w*\.*]{2,})", // "")); // System.out.println(" 比特网chinabyte 01月05日 10:21".replaceAll("(^[\w*\.*]{2,})", // "")); // System.out.println(DateUtil.getDateValue(YEAR_REGEX, // " 比特网chinabyte 2012年01月05日 10:21")); // List<String> dates = new ArrayList<String>();// // dates.add("年份01"); // dates.add("2012年份"); // dates.add("2012年"); // System.out.println(dateStrFilter(dates)); // Arrays.sort(dates); // for (String date : dates) { // System.out.println(date); // } // String date = " 比特网chinabyte 2012-01.05 10:21:36"; // String date = "c114.net 01月/06日 13点:57分:29秒"; // String date = "1/4"; // Pattern p = // Pattern.compile("[0-9]{0,4}[-年份/_#.;]{0,2}[0-9]{0,2}[-月份/_#.;]{1,2}[0-9]{0,2}[-日天/_#.;]{1,2}[\s ]{0,}[0-9]{0,2}[:点时小/_#.;]{0,2}[0-9]{0,2}[:分钟/_#.;]{0,2}[0-9]{0,2}[:秒钟/_#.;]{0,2}"); // Matcher m = p.matcher(date); // if (m.find()) { // System.out.println(m.group()); // } // if (m.find()) { // System.out.println(m.group()); // } // System.out.println(sysTimeAddDayNum(2)); // System.out.println(sysTimeAddDayNum(-2)); // Date start = DateUtil.getBeginingOfTheDay("2015-02-28"); // System.out.println(start); // // for(int i = 0; i < 12; i++){ // Date end = DateUtil.addOneMonthAndOneDayMinusOneSecond(start); // System.out.println("start = " + DateUtil.formatDateTime(start) + " end = " + DateUtil.formatDateTime(end)); // // start = DateUtil.getBeginingOfTheDay(end); // } // Date start = DateUtil.getEndOfTheDay("2015-05-10 "); System.out.println(DateUtil.naturalDaysDifference(start, DateUtil.now())); } public static boolean isOneMinuteAgo(Date pastDate){ Date newDate = DateUtil.addMinutes(pastDate, 1); Date now = new Date(); return now.after(newDate); } public static Date addMinutes(Date date, int minutesToAdd){ Calendar c = Calendar.getInstance(); c.setTime(date); c.add(Calendar.MINUTE, minutesToAdd); return new Date(c.getTimeInMillis()); } public static Date addDays(Date date, int daysToAdd){ Calendar c = Calendar.getInstance(); c.setTime(date); c.add(Calendar.DATE, daysToAdd); return new Date(c.getTimeInMillis()); } public static Date addDaysAndMinusOneSecond(Date date, int daysToAdd){ date = addDays(date, daysToAdd); Calendar c = Calendar.getInstance(); c.setTime(date); c.add(Calendar.SECOND, -1); return new Date(c.getTimeInMillis()); } public static long hoursDifference(Date startDate, Date endDate){ return (endDate.getTime() - startDate.getTime()) / HOUR; } /** * @param startDate * @param endDate * @return 自然天的天数之差 */ public static int naturalDaysDifference(Date startDate, Date endDate){ Calendar c = Calendar.getInstance(); c.setTime(startDate); c.set(Calendar.SECOND, 0); c.set(Calendar.MINUTE, 0); c.set(Calendar.HOUR_OF_DAY, 0); int days = (int)((endDate.getTime() - c.getTimeInMillis()) / DAY); if(days == 0 && (endDate.getTime() > c.getTimeInMillis())){ days = 1; } return days; } public static long hoursToNow(Date startDate){ return hoursDifference(startDate, now()); } public static Date now(){ return new Date(); } public static Date getBeginingOfTheDay(String date){ if(StringUtils.isBlank(date)){ return null; } return formatStr2Date(date + " 0:00:00"); } public static Date getBeginingOfTheDay(Date date){ if(date == null){ return null; } return getBeginingOfTheDay(format(date)); } public static Date getEndOfTheDay(String date){ if(StringUtils.isBlank(date)){ return null; } return formatStr2Date(date + " 23:59:59"); } public static Date tomorrow(){ return addDays(now(), 1); } public static Date addMonths(Date start, int months){ Calendar c = Calendar.getInstance(); c.setTime(start); c.add(Calendar.MONTH, months); return new Date(c.getTimeInMillis()); } public static Date addYears(Date start, int years) { Calendar c = Calendar.getInstance(); c.setTime(start); c.add(Calendar.YEAR, years); return new Date(c.getTimeInMillis()); } public static Date addSeconds(Date start, int seconds){ Calendar c = Calendar.getInstance(); c.setTime(start); c.add(Calendar.SECOND, seconds); return new Date(c.getTimeInMillis()); } public static Date addHours(Date start, int hours){ Calendar c = Calendar.getInstance(); c.setTime(start); c.add(Calendar.HOUR_OF_DAY, hours); return new Date(c.getTimeInMillis()); } public static Date getFirstDayOfMonthByGivenDate(int year, int month){ Date now = now(); Calendar c = Calendar.getInstance(); c.setTime(now); c.set(Calendar.YEAR, year); c.set(Calendar.MONTH, month); c.set(Calendar.DAY_OF_MONTH, 1); c.set(Calendar.SECOND, 0); c.set(Calendar.MINUTE, 0); c.set(Calendar.HOUR_OF_DAY, 0); return new Date(c.getTimeInMillis()); } public static Date getFirDayOfCurrentMonth(){ Date now = now(); Calendar c = Calendar.getInstance(); c.setTime(now); return getFirstDayOfMonthByGivenDate(c.get(Calendar.YEAR), c.get(Calendar.MONTH)); } public static Date getFirDayOfNextMonth(){ Date now = now(); Calendar c = Calendar.getInstance(); c.setTime(now); return getFirstDayOfNextMonthByGivenDate(c.get(Calendar.YEAR), c.get(Calendar.MONTH)); } public static Date getFirstDayOfNextMonthByGivenDate(int year, int month){ Date date = getFirstDayOfMonthByGivenDate(year, month); Calendar c = Calendar.getInstance(); c.setTime(date); c.add(Calendar.MONTH, 1); return new Date(c.getTimeInMillis()); } public static Date addOneMonthMinusOneDay(Date start){ Calendar c = Calendar.getInstance(); c.setTime(start); c.add(Calendar.MONTH, 1); c.add(Calendar.DATE, -1); return new Date(c.getTimeInMillis()); } public static Date addOneMonthAndOneDayMinusOneSecond(Date start){ Calendar c = Calendar.getInstance(); c.setTime(start); c.add(Calendar.MONTH, 1); c.add(Calendar.DATE, 1); c.add(Calendar.SECOND, -1); return new Date(c.getTimeInMillis()); } //计算下个月的还款时间，按照自然月的方式处理 public static Date getLoanTermDueTime(Date start){ Calendar c = Calendar.getInstance(); c.setTime(start); c.add(Calendar.MONTH, 1); c.add(Calendar.SECOND, -1); return new Date(c.getTimeInMillis()); } public static int getLastDayOfCurrentMonth(Date date){ Calendar c = Calendar.getInstance(); c.setTime(date); //将日期设置到下个月的第一天 c.add(Calendar.MONTH, 1); c.set(Calendar.DAY_OF_MONTH, 1); //日期间一天（即返回当前月的最后一天） c.add(Calendar.DATE, -1); return c.get(Calendar.DAY_OF_MONTH); } public static boolean isPastStatTime(Date startDate){ return DateUtil.now().after(startDate); } public static boolean isBetweenTime(Date startTime, Date dueTime){ return false; } public static boolean isPastOverDueTime(Date dueDate){ Calendar c = Calendar.getInstance(); c.setTime(dueDate); c.set(Calendar.SECOND, 0); c.set(Calendar.MINUTE, 0); c.set(Calendar.HOUR_OF_DAY, 0); c.add(Calendar.DATE, 1); return DateUtil.now().after(c.getTime()); } public static boolean isPastNow(Date dueTime){ if(dueTime != null){ return now().after(dueTime); } return false; } //********************start************************************ /** * @Title: String2Date * @Description: { String Date 2 yyyy-MM Date } * @file_name: DateUtil.java * @user:DING */ //String2Date public static Date String2Date(String dateStr) throws Exception { Date date = new Date(); SimpleDateFormat strToDate = new SimpleDateFormat("yyyy-MM"); date = strToDate.parse(dateStr); return date; } /** * @Title: parseDate * @Description: { 将日期格式为yyyy-MM-DD hh:mm:ss param date 日期时间 } * @file_name: DateUtil.java * @user:DING */ public static Date parseDate(Date date) { SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss"); String dateStr = sdf.format(date); return formatStr2Date(dateStr); } /** * @Title: formatStr2Date * @Description: { 将日期字符串转化为Date } * @file_name: DateUtil.java * @user:DING */ @SuppressWarnings("finally") public static Date formatStr2Date(String dateStr) { SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss"); Date date = null; try { date = sdf.parse(dateStr); } catch (ParseException e) { e.printStackTrace(); } finally { return date; } } /** * @Title: sysTimeAddDayNum * @Description: { 得到当前时间的前或后天数 时间 } * @file_name: DateUtil.java * @user:DING */ public static String sysTimeAddDayNum(int DayNum) { SimpleDateFormat format = new SimpleDateFormat("yyyy-MM-dd"); Date dd = new Date(); Calendar calendar = Calendar.getInstance(); calendar.setTime(dd); calendar.add(Calendar.DATE,DayNum); String newDate = format.format(calendar.getTime() ) ; return newDate; } public static String getAge(Date birthDay) throws Exception { Calendar cal = Calendar.getInstance(); if (cal.before(birthDay)) { throw new IllegalArgumentException( "The birthDay is before Now.It's unbelievable!"); } int yearNow = cal.get(Calendar.YEAR); int monthNow = cal.get(Calendar.MONTH)+1; int dayOfMonthNow = cal.get(Calendar.DAY_OF_MONTH); cal.setTime(birthDay); int yearBirth = cal.get(Calendar.YEAR); int monthBirth = cal.get(Calendar.MONTH); int dayOfMonthBirth = cal.get(Calendar.DAY_OF_MONTH); int age = yearNow - yearBirth; if (monthNow <= monthBirth) { if (monthNow == monthBirth) { //monthNow==monthBirth if (dayOfMonthNow < dayOfMonthBirth) { age--; } } else { //monthNow>monthBirth age--; } } return age +""; } //判断是否为同一天 public static boolean getWhetherSameDay(Date date){ //系统时间 if(formatTime(now(),TIMEDATE).equals(formatTime(date,TIMEDATE))){ return true; } return false; } //******************end**************************************** }