Java Date工具类

import java.text.DateFormat;import java.text.DecimalFormat;import java.text.ParseException;import java.text.SimpleDateFormat;import java.util.ArrayList;import java.util.Calendar;import java.util.Date;import java.util.List;import org.apache.commons.lang.time.DateUtils;import org.apache.commons.logging.Log;import org.apache.commons.logging.LogFactory;public class DateUtil {private static final Log logger = LogFactory.getLog(DateUtil.class);/** * 设置当前时间为当天的最初时间（即00时00分00秒） *  * @param cal * @return */public static Calendar setStartDay(Calendar cal) {cal.set(Calendar.HOUR_OF_DAY, 0);cal.set(Calendar.MINUTE, 0);cal.set(Calendar.SECOND, 0);return cal;}public static Calendar setEndDay(Calendar cal) {cal.set(Calendar.HOUR_OF_DAY, 23);cal.set(Calendar.MINUTE, 59);cal.set(Calendar.SECOND, 59);return cal;}/** * 把源日历的年月日设置到目标日历对象中 *  * @param destCal * @param sourceCal */public static void copyYearMonthDay(Calendar destCal, Calendar sourceCal) {destCal.set(Calendar.YEAR, sourceCal.get(Calendar.YEAR));destCal.set(Calendar.MONTH, sourceCal.get(Calendar.MONTH));destCal.set(Calendar.DAY_OF_MONTH, sourceCal.get(Calendar.DAY_OF_MONTH));}/** * 格式化日期为 *  * @return */public static String formatEnDate(Date date) {SimpleDateFormat sdf = new SimpleDateFormat("MM/dd/yyyy HH:mm:ss");return sdf.format(date).replaceAll("上午", "AM").replaceAll("下午", "PM");}/** * 格式化日期为 *  * @return */public static String DateToStr(Date date) {SimpleDateFormat sdf = new SimpleDateFormat("MM/dd/yyyy HH:mm:ss");return sdf.format(date);}public static Date parseDate(String dateString) {Date date = null;try {date = DateUtils.parseDate(dateString, new String[] {StringPool.DATE_FORMAT_DATETIME,StringPool.DATE_FORMAT_DATE,StringPool.DATE_FORMAT_DATETIME_NOSECOND,StringPool.DATE_FORMAT_TIME,StringPool.DATE_FORMAT_TIME_NOSECOND,StringPool.DATE_FORMAT_TIMESTAMP });} catch (Exception ex) {logger.error("Pase the Date(" + dateString + ") occur errors:"+ ex.getMessage());}return date;}/** * 日期加N天 *  * @param date * @param day * @return */public static Date addDay(Date date, int day) {Calendar ca = Calendar.getInstance();ca.setTime(date);ca.add(Calendar.DAY_OF_MONTH, day);return ca.getTime();}/** * 日期加N天 *  * @param date * @param day * @return */public static Date addOneDay(Date date) {return addDay(date, 1);}/** * 日期加一天 *  * @param date * @return */public static String addOneDay(String date) {DateFormat format = new SimpleDateFormat(StringPool.DATE_FORMAT_DATE);Calendar calendar = Calendar.getInstance();try {Date dd = format.parse(date);calendar.setTime(dd);calendar.add(Calendar.DAY_OF_MONTH, 1);} catch (ParseException e) {e.printStackTrace();}String tmpDate = format.format(calendar.getTime());return tmpDate.substring(5, 7) + "/" + tmpDate.substring(8, 10) + "/"+ tmpDate.substring(0, 4);}/** * 加一小时 *  * @param date * @return */public static String addOneHour(String date) {String amPm = date.substring(20, 22);DateFormat format = new SimpleDateFormat(StringPool.DATE_FORMAT_DATETIME);Calendar calendar = Calendar.getInstance();int hour = Integer.parseInt(date.substring(11, 13));try {if (amPm.equals("PM")) {hour += 12;}date = date.substring(0, 11) + (hour >= 10 ? hour : "0" + hour)+ date.substring(13, 19);Date dd = format.parse(date);calendar.setTime(dd);calendar.add(Calendar.HOUR_OF_DAY, 1);} catch (ParseException e) {e.printStackTrace();}String tmpDate = format.format(calendar.getTime());hour = Integer.parseInt(tmpDate.substring(11, 13));amPm = hour >= 12 && hour != 0 ? "PM" : "AM";if (amPm.equals("PM")) {hour -= 12;}tmpDate = tmpDate.substring(5, 7) + "/" + tmpDate.substring(8, 10)+ "/" + tmpDate.substring(0, 4) + " "+ (hour >= 10 ? hour : "0" + hour)+ tmpDate.substring(13, tmpDate.length()) + " " + amPm;return tmpDate;}/** * 标准时间格式转为时间字符格式 *  * @param timeStr *            eg:Mon Feb 06 00:00:00 CST 2012 * @return */public static String timeStrToDateStr(String timeStr) {String dateStr = timeStr.substring(24, 28) + "-";String mon = timeStr.substring(4, 7);if (mon.equals("Jan")) {dateStr += "01";} else if (mon.equals("Feb")) {dateStr += "02";} else if (mon.equals("Mar")) {dateStr += "03";} else if (mon.equals("Apr")) {dateStr += "04";} else if (mon.equals("May")) {dateStr += "05";} else if (mon.equals("Jun")) {dateStr += "06";} else if (mon.equals("Jul")) {dateStr += "07";} else if (mon.equals("Aug")) {dateStr += "08";} else if (mon.equals("Sep")) {dateStr += "09";} else if (mon.equals("Oct")) {dateStr += "10";} else if (mon.equals("Nov")) {dateStr += "11";} else if (mon.equals("Dec")) {dateStr += "12";}dateStr += "-" + timeStr.substring(8, 10);return dateStr;}/** * 标准时间格式转为时间字符格式 *  * @param timeStr *            eg:Mon Feb 06 00:00:00 2012 * @return */public static String timeStrToTimeStr(String timeStr) {String dateStr = timeStr.substring(20, 24) + "-";        String tStr=timeStr.substring(11, 19);String mon = timeStr.substring(4, 7);if (mon.equals("Jan")) {dateStr += "01";} else if (mon.equals("Feb")) {dateStr += "02";} else if (mon.equals("Mar")) {dateStr += "03";} else if (mon.equals("Apr")) {dateStr += "04";} else if (mon.equals("May")) {dateStr += "05";} else if (mon.equals("Jun")) {dateStr += "06";} else if (mon.equals("Jul")) {dateStr += "07";} else if (mon.equals("Aug")) {dateStr += "08";} else if (mon.equals("Sep")) {dateStr += "09";} else if (mon.equals("Oct")) {dateStr += "10";} else if (mon.equals("Nov")) {dateStr += "11";} else if (mon.equals("Dec")) {dateStr += "12";}dateStr += "-" + timeStr.substring(8, 10);String tdStr=dateStr+" "+tStr;return tdStr;}public static long dateToStamp(String s) throws ParseException{        SimpleDateFormat simpleDateFormat = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");        Date date = simpleDateFormat.parse(s);        long ts = date.getTime();        return ts;    }/** * 根据日期得到星期多余天数 *  * @param sDate * @return */public static int getExtraDayOfWeek(String sDate) {try {SimpleDateFormat format = new SimpleDateFormat(StringPool.DATE_FORMAT_DATE);Date date = format.parse(sDate);String weekday = date.toString().substring(0, 3);if (weekday.equals("Mon")) {return 1;} else if (weekday.equals("Tue")) {return 2;} else if (weekday.equals("Wed")) {return 3;} else if (weekday.equals("Thu")) {return 4;} else if (weekday.equals("Fri")) {return 5;} else if (weekday.equals("Sat")) {return 6;} else {return 0;}} catch (Exception ex) {return 0;}}/** * 根据日期得到星期多余天数 *  * @param sDate * @return */public static String getDateWeekDay(String sDate) {try {SimpleDateFormat format = new SimpleDateFormat(StringPool.DATE_FORMAT_DATE);Date date = format.parse(sDate);String weekday = date.toString().substring(0, 3);// format.format(date)+" "+return weekday;} catch (Exception ex) {return "";}}/** * 取得上下五年 *  * @param cal * @return */public static List<String> getUpDownFiveYear(Calendar cal) {List<String> yearlist = new ArrayList<String>();int curyear = cal.get(Calendar.YEAR);yearlist.add(String.valueOf(curyear - 2));yearlist.add(String.valueOf(curyear - 1));yearlist.add(String.valueOf(curyear));yearlist.add(String.valueOf(curyear + 1));yearlist.add(String.valueOf(curyear + 2));return yearlist;}/** * 取得12个月 *  * @param cal * @return */public static List<String> getTwelveMonth() {List<String> monthlist = new ArrayList<String>();for (int idx = 1; idx <= 12; idx++) {monthlist.add(String.valueOf(idx));}return monthlist;}/** * 得到两日期间所有日期 *  * @param startTime * @param endTime * @return * @throws Exception */public static String[] getDaysBetweenDate(Date startTime, Date endTime) {String[] dateArr = null;try {Integer day = daysBetween(startTime, endTime);dateArr = new String[day + 1];for (int i = 0; i < dateArr.length; i++) {if (i == 0) {dateArr[i] = DateFormatUtil.formatDate(startTime);} else {Calendar calendar = Calendar.getInstance();calendar.setTime(startTime);calendar.add(Calendar.DAY_OF_MONTH, i);dateArr[i] = DateFormatUtil.formatDate(calendar.getTime());}}} catch (Exception e) {e.printStackTrace();}return dateArr;}/** * 得到两日期间所有日期 *  * @param startTime * @param endTime * @return * @throws Exception */public static String[] getDaysBetweenDate(String startTime, String endTime) {String[] dateArr = null;try {String stime = timeStrToDateStr(startTime);String etime = timeStrToDateStr(endTime);// 日期相减算出秒的算法Date date1 = new SimpleDateFormat(StringPool.DATE_FORMAT_DATE).parse(stime);Date date2 = new SimpleDateFormat(StringPool.DATE_FORMAT_DATE).parse(etime);long day = (date1.getTime() - date2.getTime())/ (24 * 60 * 60 * 1000) > 0 ? (date1.getTime() - date2.getTime()) / (24 * 60 * 60 * 1000): (date2.getTime() - date1.getTime())/ (24 * 60 * 60 * 1000);dateArr = new String[Integer.valueOf(String.valueOf(day + 1))];for (int idx = 0; idx < dateArr.length; idx++) {if (idx == 0) {dateArr[idx] = stime;} else {stime = addOneDay(stime);stime = stime.substring(6, 10) + "-"+ stime.substring(0, 2) + "-"+ stime.substring(3, 5);dateArr[idx] = stime;}}} catch (ParseException e) {e.printStackTrace();}return dateArr;}/** * 获取给定时间所在月的第一天的日期 *  * @param calendar * @return 这个月的第一天的日期 */public static Date getMonthStartDate(Date date) {Calendar calendar = Calendar.getInstance();calendar.setTime(date);// 得到当天是这月的第几天int dayOfMonth = calendar.get(Calendar.DAY_OF_MONTH);// 减去dayOfMonth,得到第一天的日期，因为Calendar用０代表每月的第一天，所以要减一calendar.add(Calendar.DAY_OF_MONTH, -(dayOfMonth - 1));Date firstDateOfMonth = calendar.getTime();return firstDateOfMonth;}/** * 获取给定时间所在月的最后一天的日期 *  * @param calendar * @return 这个月的最后一天的日期 */public static Date getMonthEndDate(Date date) {Calendar calendar = Calendar.getInstance();calendar.setTime(date);// 得到当天是这月的第几天int dayOfMonth = calendar.get(Calendar.DAY_OF_MONTH);// calendar.getActualMaximum(Calendar.DAY_OF_MONTH)得到这个月有几天calendar.add(Calendar.DAY_OF_MONTH,calendar.getActualMaximum(Calendar.DAY_OF_MONTH) - dayOfMonth);Date lastDateOfMonth = calendar.getTime();return lastDateOfMonth;}//获取上个月第一天日期public static String getFirstDayOfPreMonth() {SimpleDateFormat dft = new SimpleDateFormat("yyyy-MM-dd");Calendar calendar = Calendar.getInstance();calendar.add(Calendar.MONTH, -1);calendar.set(Calendar.DAY_OF_MONTH, calendar.getActualMinimum(Calendar.DAY_OF_MONTH));return dft.format(calendar.getTime());    }//获取这个月第一天日期public static String getFirstDayOfNowMonth() {SimpleDateFormat dft = new SimpleDateFormat("yyyy-MM-dd");Calendar calendar = Calendar.getInstance();calendar.add(Calendar.MONTH,0);calendar.set(Calendar.DAY_OF_MONTH, calendar.getActualMinimum(Calendar.DAY_OF_MONTH));return dft.format(calendar.getTime());}/** * 获取给定时间所在月的第一天的日期的开始时间 *  * @param calendar * @return 这个月的第一天的日期的开始时间 */public static Date getMonthStartDateTime(Date date) {Date firstDateOfMonth = getMonthStartDate(date);Calendar calendar = Calendar.getInstance();calendar.setTime(firstDateOfMonth);calendar = setStartDay(calendar);return calendar.getTime();}/** * 获取给定时间所在月的最后一天的日期结束时间 *  * @param calendar * @return 这个月的最后一天的日期的结束时间 */public static Date getMonthEndDateTime(Date date) {Date endDateOfMonth = getMonthEndDate(date);Calendar calendar = Calendar.getInstance();calendar.setTime(endDateOfMonth);calendar = setEndDay(calendar);return calendar.getTime();}/** * 获取给定时间所在周的第一天的（星期一） *  * @param calendar * @return 这周的第一天的日期（星期一） */public static Date getWeekStartDate(Date date) {Calendar calendar = Calendar.getInstance();calendar.setTime(date);calendar.set(Calendar.DAY_OF_WEEK, Calendar.MONDAY); // 获取本周一的日期return calendar.getTime();}/** * 获取给定时间所在周的最后一天的日期（星期日） *  * @param calendar * @return 这个周的最后一天的日期（星期日） */public static Date getWeekEndDate(Date date) {Calendar calendar = Calendar.getInstance();calendar.setTime(date);// 这种输出的是上个星期周日的日期，因为老外那边把周日当成第一天calendar.set(Calendar.DAY_OF_WEEK, Calendar.SUNDAY);// 增加一个星期，才是我们中国人理解的本周日的日期calendar.add(Calendar.WEEK_OF_YEAR, 1);return calendar.getTime();}/** * 获取给定时间所在周的第一天的日期的开始时间（星期一） *  * @param calendar * @return 这个周的第一天的日期的开始时间（星期一） */public static Date getWeekStartDateTime(Date date) {Calendar calendar = Calendar.getInstance();calendar.setTime(date);calendar.set(Calendar.DAY_OF_WEEK, Calendar.MONDAY); // 获取本周一的日期calendar = setStartDay(calendar);return calendar.getTime();}/** * 获取给定时间所在周的最后一天的日期结束时间（星期日） *  * @param calendar * @return 这个周的最后一天的日期的结束时间（星期日） */public static Date getWeekEndDateTime(Date date) {Calendar calendar = Calendar.getInstance();calendar.setTime(date);// 这种输出的是上个星期周日的日期，因为老外那边把周日当成第一天calendar.set(Calendar.DAY_OF_WEEK, Calendar.SUNDAY);// 增加一个星期，才是我们中国人理解的本周日的日期calendar.add(Calendar.WEEK_OF_YEAR, 1);calendar = setEndDay(calendar);return calendar.getTime();}/** * 返回星期几 *  * @param date * @return */public static String getWeekOfDate(Date date) {String[] weekDays = { "星期日", "星期一", "星期二", "星期三", "星期四", "星期五", "星期六" };Calendar cal = Calendar.getInstance();cal.setTime(date);int w = cal.get(Calendar.DAY_OF_WEEK) - 1;if (w < 0)w = 0;return weekDays[w];}/** * 获取两个时间的相差的天数 *  * @param startDate * @param endDate * @return 获取两个时间的相差的天数 */public static int daysBetween(Date startDate, Date endDate) {Calendar cal = Calendar.getInstance();cal.setTime(startDate);long startTime = cal.getTimeInMillis();cal.setTime(endDate);long endTime = cal.getTimeInMillis();long between_days = (endTime - startTime) / (1000 * 3600 * 24);return Integer.parseInt(String.valueOf(between_days));}/** * 根据时间单位，时间间隔，当前时间计算出指定时间加上时间间隔后的时间 *  * @param date * @param field * @param amount * @return */public static Date getNextTime(Date date, int field, int amount) {Calendar ca = Calendar.getInstance();ca.setTime(date);ca.add(field, amount);return ca.getTime();}/** * 指定的时间加或减少几个小时 *  * @param date * @param hour * @return */public static Date addHour(Date date, int hour) {return getNextTime(date, Calendar.HOUR_OF_DAY, hour);}/** * 指定的时间加或减少几个小时 *  * @param date * @param hour * @return */public static Date addHour(Date date, double time) {int hour = (int) time;double minute1 = (time - hour) * 60;int minute = (int) minute1;int second = (int) ((minute1 - minute) * 60);Date dateHour = getNextTime(date, Calendar.HOUR_OF_DAY, hour);Date dateMinute = getNextTime(dateHour, Calendar.MINUTE, minute);return getNextTime(dateMinute, Calendar.SECOND, second);}/** * 指定的时间加或减少几个分钟 *  * @param date * @param minute * @return */public static Date addMinute(Date date, int minute) {return getNextTime(date, Calendar.MINUTE, minute);}public static boolean isBetween(Date startTime, Date endTime, Date date) {if (date.after(startTime) && date.before(endTime))return true;return false;}public static double betweenMinute(Date startTime, Date endTime) {Long seconds = (endTime.getTime() - startTime.getTime()) / 1000;double s = ((double) seconds % 60 / 60);DecimalFormat df = new DecimalFormat("0.00");double sec = Double.parseDouble(df.format(s));Long minute = seconds / 60;return minute + sec;}public static double betweenHour(Date startTime, Date endTime) {Long minutes = (endTime.getTime() - startTime.getTime()) / 1000 / 60;double m = ((double) minutes % 60 / 60);DecimalFormat df = new DecimalFormat("0.00");double min = Double.parseDouble(df.format(m));Long hour = minutes / 60;return hour + min;}public static double betweenHour(Date startTime, Date endTime,Double restMinutes) {Long minutes = (endTime.getTime() - startTime.getTime()) / 1000 / 60;Long ms = (long) (minutes - restMinutes);double m = ((double) ms % 60 / 60);DecimalFormat df = new DecimalFormat("0.00");double min = Double.parseDouble(df.format(m));Long hour = ms / 60;return hour + min;}public static Date getTime(Date date, Date time) {Calendar cal = Calendar.getInstance();cal.setTime(date);Calendar ca = Calendar.getInstance();ca.setTime(time);ca.set(cal.get(Calendar.YEAR), cal.get(Calendar.MONTH),cal.get(Calendar.DAY_OF_MONTH));return ca.getTime();}}