很全面的Java和js 日期工具类
jopen
11年前
Java时间处理类：
import java.text.ParsePosition; import java.text.SimpleDateFormat; import java.util.Calendar; import java.util.Date; import java.util.regex.Pattern; import org.apache.commons.logging.Log; import org.apache.commons.logging.LogFactory; public class DateUtil { protected static Log logger = LogFactory.getLog(DateUtil.class); // 格式：年－月－日 小时：分钟：秒 public static final String FORMAT_ONE = "yyyy-MM-dd HH:mm:ss"; // 格式：年－月－日 小时：分钟 public static final String FORMAT_TWO = "yyyy-MM-dd HH:mm"; // 格式：年月日 小时分钟秒 public static final String FORMAT_THREE = "yyyyMMdd-HHmmss"; // 格式：年－月－日 public static final String LONG_DATE_FORMAT = "yyyy-MM-dd"; // 格式：月－日 public static final String SHORT_DATE_FORMAT = "MM-dd"; // 格式：小时：分钟：秒 public static final String LONG_TIME_FORMAT = "HH:mm:ss"; //格式：年-月 public static final String MONTG_DATE_FORMAT = "yyyy-MM"; // 年的加减 public static final int SUB_YEAR = Calendar.YEAR; // 月加减 public static final int SUB_MONTH = Calendar.MONTH; // 天的加减 public static final int SUB_DAY = Calendar.DATE; // 小时的加减 public static final int SUB_HOUR = Calendar.HOUR; // 分钟的加减 public static final int SUB_MINUTE = Calendar.MINUTE; // 秒的加减 public static final int SUB_SECOND = Calendar.SECOND; static final String dayNames[] = { "星期日" , "星期一" , "星期二" , "星期三" , "星期四" , "星期五" , "星期六" }; @SuppressWarnings("unused") private static final SimpleDateFormat timeFormat = new SimpleDateFormat( "yyyy-MM-dd HH:mm:ss"); public DateUtil() { } /** * 把符合日期格式的字符串转换为日期类型 */ public static Date stringtoDate(String dateStr, String format) { Date d = null; SimpleDateFormat formater = new SimpleDateFormat(format); try { formater.setLenient(false); d = formater.parse(dateStr); } catch (Exception e) { d = null; } return d; } /** * 把符合日期格式的字符串转换为日期类型 */ public static java.util.Date stringtoDate(String dateStr, String format, ParsePosition pos) { Date d = null; SimpleDateFormat formater = new SimpleDateFormat(format); try { formater.setLenient(false); d = formater.parse(dateStr, pos); } catch (Exception e) { d = null; } return d; } /** * 把日期转换为字符串 */ public static String dateToString(java.util.Date date, String format) { String result = ""; SimpleDateFormat formater = new SimpleDateFormat(format); try { result = formater.format(date); } catch (Exception e) { // log.error(e); } return result; } /** * 获取当前时间的指定格式 */ public static String getCurrDate(String format) { return dateToString(new Date(), format); } public static String dateSub(int dateKind, String dateStr, int amount) { Date date = stringtoDate(dateStr, FORMAT_ONE); Calendar calendar = Calendar.getInstance(); calendar.setTime(date); calendar.add(dateKind, amount); return dateToString(calendar.getTime(), FORMAT_ONE); } /** * 两个日期相减 * @return 相减得到的秒数 */ public static long timeSub(String firstTime, String secTime) { long first = stringtoDate(firstTime, FORMAT_ONE).getTime(); long second = stringtoDate(secTime, FORMAT_ONE).getTime(); return (second - first) / 1000; } /** * 获得某月的天数 */ public static int getDaysOfMonth(String year, String month) { int days = 0; if (month.equals("1") || month.equals("3") || month.equals("5") || month.equals("7") || month.equals("8") || month.equals("10") || month.equals("12")) { days = 31; } else if (month.equals("4") || month.equals("6") || month.equals("9") || month.equals("11")) { days = 30; } else { if ((Integer.parseInt(year) % 4 == 0 && Integer.parseInt(year) % 100 != 0) || Integer.parseInt(year) % 400 == 0) { days = 29; } else { days = 28; } } return days; } /** * 获取某年某月的天数 */ public static int getDaysOfMonth(int year, int month) { Calendar calendar = Calendar.getInstance(); calendar.set(year, month - 1, 1); return calendar.getActualMaximum(Calendar.DAY_OF_MONTH); } /** * 获得当前日期 */ public static int getToday() { Calendar calendar = Calendar.getInstance(); return calendar.get(Calendar.DATE); } /** * 获得当前月份 */ public static int getToMonth() { Calendar calendar = Calendar.getInstance(); return calendar.get(Calendar.MONTH) + 1; } /** * 获得当前年份 */ public static int getToYear() { Calendar calendar = Calendar.getInstance(); return calendar.get(Calendar.YEAR); } /** * 返回日期的天 */ public static int getDay(Date date) { Calendar calendar = Calendar.getInstance(); calendar.setTime(date); return calendar.get(Calendar.DATE); } /** * 返回日期的年 */ public static int getYear(Date date) { Calendar calendar = Calendar.getInstance(); calendar.setTime(date); return calendar.get(Calendar.YEAR); } /** * 返回日期的月份，1-12 */ public static int getMonth(Date date) { Calendar calendar = Calendar.getInstance(); calendar.setTime(date); return calendar.get(Calendar.MONTH) + 1; } /** * 计算两个日期相差的天数，如果date2 > date1 返回正数，否则返回负数 */ public static long dayDiff(Date date1, Date date2) { return (date2.getTime() - date1.getTime()) / 86400000; } /** * 比较两个日期的年差 */ public static int yearDiff(String before, String after) { Date beforeDay = stringtoDate(before, LONG_DATE_FORMAT); Date afterDay = stringtoDate(after, LONG_DATE_FORMAT); return getYear(afterDay) - getYear(beforeDay); } /** * 比较指定日期与当前日期的差 */ public static int yearDiffCurr(String after) { Date beforeDay = new Date(); Date afterDay = stringtoDate(after, LONG_DATE_FORMAT); return getYear(beforeDay) - getYear(afterDay); } /** * 比较指定日期与当前日期的差 */ public static long dayDiffCurr(String before) { Date currDate = DateUtil.stringtoDate(currDay(), LONG_DATE_FORMAT); Date beforeDate = stringtoDate(before, LONG_DATE_FORMAT); return (currDate.getTime() - beforeDate.getTime()) / 86400000; } /** * 得到当前日期 * */ public static String currDay(){ return dateToString(new Date(), LONG_DATE_FORMAT); } /** * 获取每月的第一周 */ public static int getFirstWeekdayOfMonth(int year, int month) { Calendar c = Calendar.getInstance(); c.setFirstDayOfWeek(Calendar.SATURDAY); // 星期天为第一天 c.set(year, month - 1, 1); return c.get(Calendar.DAY_OF_WEEK); } /** * 获取每月的最后一周 */ public static int getLastWeekdayOfMonth(int year, int month) { Calendar c = Calendar.getInstance(); c.setFirstDayOfWeek(Calendar.SATURDAY); // 星期天为第一天 c.set(year, month - 1, getDaysOfMonth(year, month)); return c.get(Calendar.DAY_OF_WEEK); } /** * 获得当前日期字符串，格式"yyyy-MM-dd HH:mm:ss" * * @return */ public static String getNow() { Calendar today = Calendar.getInstance(); return dateToString(today.getTime(), FORMAT_ONE); } /** * 把java.util.date 类型转换成java.sql.date * @param date * @return */ public static java.sql.Timestamp getDate(java.util.Date date){ // java.sql.Date sqlDate = new java.sql.Date(); java.sql.Timestamp timestamp = new java.sql.Timestamp(date.getTime()); return timestamp; } /** * 判断日期是否有效,包括闰年的情况 * * @param date * YYYY-mm-dd * @return */ public static boolean isDate(String date) { StringBuffer reg = new StringBuffer( "^((\\d{2}(([02468][048])|([13579][26]))-?((((0?"); reg.append("[13578])|(1[02]))-?((0?[1-9])|([1-2][0-9])|(3[01])))"); reg.append("|(((0?[469])|(11))-?((0?[1-9])|([1-2][0-9])|(30)))|"); reg.append("(0?2-?((0?[1-9])|([1-2][0-9])))))|(\\d{2}(([02468][12"); reg.append("35679])|([13579][01345789]))-?((((0?[13578])|(1[02]))"); reg.append("-?((0?[1-9])|([1-2][0-9])|(3[01])))|(((0?[469])|(11))"); reg.append("-?((0?[1-9])|([1-2][0-9])|(30)))|(0?2-?((0?["); reg.append("1-9])|(1[0-9])|(2[0-8]))))))"); Pattern p = Pattern.compile(reg.toString()); return p.matcher(date).matches(); } } /** * java日期操作(月末、周末等的日期操作) * * @author * */ public class DateUtil { /** */ /** * 取得某天相加(减)後的那一天 * * @param date * @param num * (可正可负) * @return */ public static Date getAnotherDate(Date date, int num) { Calendar c = Calendar.getInstance(); c.setTime(date); c.add(Calendar.DAY_OF_YEAR, num); return c.getTime(); } /** */ /** * 取得某月的的最后一天 * * @param year * @param month * @return */ public static Date getLastDayOfMonth(int year, int month) { Calendar cal = Calendar.getInstance(); cal.set(Calendar.YEAR, year);// 年 cal.set(Calendar.MONTH, month - 1);// 月，因为Calendar里的月是从0开始，所以要减1 cal.set(Calendar.DATE, 1);// 日，设为一号 cal.add(Calendar.MONTH, 1);// 月份加一，得到下个月的一号 cal.add(Calendar.DATE, -1);// 下一个月减一为本月最后一天 return cal.getTime();// 获得月末是几号 } /** */ /** * 取得某天是一年中的多少周 * * @param date * @return */ public static int getWeekOfYear(Date date) { Calendar c = new GregorianCalendar(); c.setFirstDayOfWeek(Calendar.MONDAY); c.setMinimalDaysInFirstWeek(7); c.setTime(date); return c.get(Calendar.WEEK_OF_YEAR); } /** */ /** * 取得某天所在周的第一天 * * @param date * @return */ public static Date getFirstDayOfWeek(Date date) { Calendar c = new GregorianCalendar(); c.setFirstDayOfWeek(Calendar.MONDAY); c.setTime(date); c.set(Calendar.DAY_OF_WEEK, c.getFirstDayOfWeek()); return c.getTime(); } /** */ /** * 取得某天所在周的最后一天 * * @param date * @return */ public static Date getLastDayOfWeek(Date date) { Calendar c = new GregorianCalendar(); c.setFirstDayOfWeek(Calendar.MONDAY); c.setTime(date); c.set(Calendar.DAY_OF_WEEK, c.getFirstDayOfWeek() + 6); return c.getTime(); } /** */ /** * 取得某一年共有多少周 * * @param year * @return */ public static int getMaxWeekNumOfYear(int year) { Calendar c = new GregorianCalendar(); c.set(year, Calendar.DECEMBER, 31, 23, 59, 59); return getWeekOfYear(c.getTime()); } /** * * 获取某一年某一周的日期 * @description * @param year * @param week * @return */ public static List<String> getWeekDays(int year,int week){ List<String> list = new ArrayList<String>(); Date date = getFirstDayOfWeek(year,week); SimpleDateFormat d = new SimpleDateFormat("yyyy-MM-dd"); for (int i = 0; i < 7; i++) { list.add(d.format(date)); System.out.println(d.format(date)); date.setDate(date.getDate()+1); } return list; } /** */ /** * 取得某年某周的第一天 对于交叉:2008-12-29到2009-01-04属于2008年的最后一周,2009-01-05为2009年第一周的第一天 * * @param year * @param week * @return */ public static Date getFirstDayOfWeek(int year, int week) { Calendar calFirst = Calendar.getInstance(); calFirst.set(year, 0, 7); Date firstDate = getFirstDayOfWeek(calFirst.getTime()); Calendar firstDateCal = Calendar.getInstance(); firstDateCal.setTime(firstDate); Calendar c = new GregorianCalendar(); c.set(Calendar.YEAR, year); c.set(Calendar.MONTH, Calendar.JANUARY); c.set(Calendar.DATE, firstDateCal.get(Calendar.DATE)); Calendar cal = (GregorianCalendar) c.clone(); cal.add(Calendar.DATE, (week - 1) * 7); firstDate = getFirstDayOfWeek(cal.getTime()); return firstDate; } /** */ /** * 取得某年某周的最后一天 对于交叉:2008-12-29到2009-01-04属于2008年的最后一周, 2009-01-04为 * 2008年最后一周的最后一天 * * @param year * @param week * @return */ public static Date getLastDayOfWeek(int year, int week) { Calendar calLast = Calendar.getInstance(); calLast.set(year, 0, 7); Date firstDate = getLastDayOfWeek(calLast.getTime()); Calendar firstDateCal = Calendar.getInstance(); firstDateCal.setTime(firstDate); Calendar c = new GregorianCalendar(); c.set(Calendar.YEAR, year); c.set(Calendar.MONTH, Calendar.JANUARY); c.set(Calendar.DATE, firstDateCal.get(Calendar.DATE)); Calendar cal = (GregorianCalendar) c.clone(); cal.add(Calendar.DATE, (week - 1) * 7); Date lastDate = getLastDayOfWeek(cal.getTime()); return lastDate; } /** *获取当前日期的年、月、日 */ public void display() { Calendar cal = Calendar.getInstance(); // 年 int year = cal.get(cal.YEAR); // 月 int month = cal.get(cal.MONTH) + 1; // 日 int date = cal.get(cal.DATE); // 星期 int today = cal.get(cal.DAY_OF_WEEK) - 1; } public static void main(String args[]){ List<String> listWeekDate = DateUtil.getWeekDays(2010,52); for(String weeks :listWeekDate){ System.out.println("weeks:"+weeks); } } } Js时间处理类：
/** * 日期处理工具类 */ var DateUtil = function(){ /** * 判断闰年 * @param date Date日期对象 * @return boolean true 或false */ this.isLeapYear = function(date){ return (0==date.getYear()%4&&((date.getYear()%100!=0)||(date.getYear()%400==0))); } /** * 日期对象转换为指定格式的字符串 * @param f 日期格式,格式定义如下 yyyy-MM-dd HH:mm:ss * @param date Date日期对象, 如果缺省，则为当前时间 * * YYYY/yyyy/YY/yy 表示年份 * MM/M 月份 * W/w 星期 * dd/DD/d/D 日期 * hh/HH/h/H 时间 * mm/m 分钟 * ss/SS/s/S 秒 * @return string 指定格式的时间字符串 */ this.dateToStr = function(formatStr, date){ formatStr = arguments[0] || "yyyy-MM-dd HH:mm:ss"; date = arguments[1] || new Date(); var str = formatStr; var Week = ['日','一','二','三','四','五','六']; str=str.replace(/yyyy|YYYY/,date.getFullYear()); str=str.replace(/yy|YY/,(date.getYear() % 100)>9?(date.getYear() % 100).toString():'0' + (date.getYear() % 100)); str=str.replace(/MM/,date.getMonth()>9?(date.getMonth() + 1):'0' + (date.getMonth() + 1)); str=str.replace(/M/g,date.getMonth()); str=str.replace(/w|W/g,Week[date.getDay()]); str=str.replace(/dd|DD/,date.getDate()>9?date.getDate().toString():'0' + date.getDate()); str=str.replace(/d|D/g,date.getDate()); str=str.replace(/hh|HH/,date.getHours()>9?date.getHours().toString():'0' + date.getHours()); str=str.replace(/h|H/g,date.getHours()); str=str.replace(/mm/,date.getMinutes()>9?date.getMinutes().toString():'0' + date.getMinutes()); str=str.replace(/m/g,date.getMinutes()); str=str.replace(/ss|SS/,date.getSeconds()>9?date.getSeconds().toString():'0' + date.getSeconds()); str=str.replace(/s|S/g,date.getSeconds()); return str; } /** * 日期计算 * @param strInterval string 可选值 y 年 m月 d日 w星期 ww周 h时 n分 s秒 * @param num int * @param date Date 日期对象 * @return Date 返回日期对象 */ this.dateAdd = function(strInterval, num, date){ date = arguments[2] || new Date(); switch (strInterval) { case 's' :return new Date(date.getTime() + (1000 * num)); case 'n' :return new Date(date.getTime() + (60000 * num)); case 'h' :return new Date(date.getTime() + (3600000 * num)); case 'd' :return new Date(date.getTime() + (86400000 * num)); case 'w' :return new Date(date.getTime() + ((86400000 * 7) * num)); case 'm' :return new Date(date.getFullYear(), (date.getMonth()) + num, date.getDate(), date.getHours(), date.getMinutes(), date.getSeconds()); case 'y' :return new Date((date.getFullYear() + num), date.getMonth(), date.getDate(), date.getHours(), date.getMinutes(), date.getSeconds()); } } /** * 比较日期差 dtEnd 格式为日期型或者有效日期格式字符串 * @param strInterval string 可选值 y 年 m月 d日 w星期 ww周 h时 n分 s秒 * @param dtStart Date 可选值 y 年 m月 d日 w星期 ww周 h时 n分 s秒 * @param dtEnd Date 可选值 y 年 m月 d日 w星期 ww周 h时 n分 s秒 */ this.dateDiff = function(strInterval, dtStart, dtEnd) { switch (strInterval) { case 's' :return parseInt((dtEnd - dtStart) / 1000); case 'n' :return parseInt((dtEnd - dtStart) / 60000); case 'h' :return parseInt((dtEnd - dtStart) / 3600000); case 'd' :return parseInt((dtEnd - dtStart) / 86400000); case 'w' :return parseInt((dtEnd - dtStart) / (86400000 * 7)); case 'm' :return (dtEnd.getMonth()+1)+((dtEnd.getFullYear()-dtStart.getFullYear())*12) - (dtStart.getMonth()+1); case 'y' :return dtEnd.getFullYear() - dtStart.getFullYear(); } } /** * 字符串转换为日期对象 * @param date Date 格式为yyyy-MM-dd HH:mm:ss，必须按年月日时分秒的顺序，中间分隔符不限制 */ this.strToDate = function(dateStr){ var data = dateStr; var reCat = /(\d{1,4})/gm; var t = data.match(reCat); t[1] = t[1] - 1; eval('var d = new Date('+t.join(',')+');'); return d; } /** * 把指定格式的字符串转换为日期对象yyyy-MM-dd HH:mm:ss * */ this.strFormatToDate = function(formatStr, dateStr){ var year = 0; var start = -1; var len = dateStr.length; if((start = formatStr.indexOf('yyyy')) > -1 && start < len){ year = dateStr.substr(start, 4); } var month = 0; if((start = formatStr.indexOf('MM')) > -1 && start < len){ month = parseInt(dateStr.substr(start, 2)) - 1; } var day = 0; if((start = formatStr.indexOf('dd')) > -1 && start < len){ day = parseInt(dateStr.substr(start, 2)); } var hour = 0; if( ((start = formatStr.indexOf('HH')) > -1 || (start = formatStr.indexOf('hh')) > 1) && start < len){ hour = parseInt(dateStr.substr(start, 2)); } var minute = 0; if((start = formatStr.indexOf('mm')) > -1 && start < len){ minute = dateStr.substr(start, 2); } var second = 0; if((start = formatStr.indexOf('ss')) > -1 && start < len){ second = dateStr.substr(start, 2); } return new Date(year, month, day, hour, minute, second); } /** * 日期对象转换为毫秒数 */ this.dateToLong = function(date){ return date.getTime(); } /** * 毫秒转换为日期对象 * @param dateVal number 日期的毫秒数 */ this.longToDate = function(dateVal){ return new Date(dateVal); } /** * 判断字符串是否为日期格式 * @param str string 字符串 * @param formatStr string 日期格式， 如下 yyyy-MM-dd */ this.isDate = function(str, formatStr){ if (formatStr == null){ formatStr = "yyyyMMdd"; } var yIndex = formatStr.indexOf("yyyy"); if(yIndex==-1){ return false; } var year = str.substring(yIndex,yIndex+4); var mIndex = formatStr.indexOf("MM"); if(mIndex==-1){ return false; } var month = str.substring(mIndex,mIndex+2); var dIndex = formatStr.indexOf("dd"); if(dIndex==-1){ return false; } var day = str.substring(dIndex,dIndex+2); if(!isNumber(year)||year>"2100" || year< "1900"){ return false; } if(!isNumber(month)||month>"12" || month< "01"){ return false; } if(day>getMaxDay(year,month) || day< "01"){ return false; } return true; } this.getMaxDay = function(year,month) { if(month==4||month==6||month==9||month==11) return "30"; if(month==2) if(year%4==0&&year%100!=0 || year%400==0) return "29"; else return "28"; return "31"; } /** * 变量是否为数字 */ this.isNumber = function(str) { var regExp = /^\d+$/g; return regExp.test(str); } /** * 把日期分割成数组 [年、月、日、时、分、秒] */ this.toArray = function(myDate) { myDate = arguments[0] || new Date(); var myArray = Array(); myArray[0] = myDate.getFullYear(); myArray[1] = myDate.getMonth(); myArray[2] = myDate.getDate(); myArray[3] = myDate.getHours(); myArray[4] = myDate.getMinutes(); myArray[5] = myDate.getSeconds(); return myArray; } /** * 取得日期数据信息 * 参数 interval 表示数据类型 * y 年 M月 d日 w星期 ww周 h时 n分 s秒 */ this.datePart = function(interval, myDate) { myDate = arguments[1] || new Date(); var partStr=''; var Week = ['日','一','二','三','四','五','六']; switch (interval) { case 'y' :partStr = myDate.getFullYear();break; case 'M' :partStr = myDate.getMonth()+1;break; case 'd' :partStr = myDate.getDate();break; case 'w' :partStr = Week[myDate.getDay()];break; case 'ww' :partStr = myDate.WeekNumOfYear();break; case 'h' :partStr = myDate.getHours();break; case 'm' :partStr = myDate.getMinutes();break; case 's' :partStr = myDate.getSeconds();break; } return partStr; } /** * 取得当前日期所在月的最大天数 */ this.maxDayOfDate = function(date) { date = arguments[0] || new Date(); date.setDate(1); date.setMonth(date.getMonth() + 1); var time = date.getTime() - 24 * 60 * 60 * 1000; var newDate = new Date(time); return newDate.getDate(); } return this; }();