package com.hh.util;import java.text.ParseException;
import java.text.SimpleDateFormat;
import java.util.Calendar;
import java.util.Date;
import java.util.Locale;
import java.util.TimeZone;/*** 时间工具类，该类的出现是为了替换DateUtil混乱的方法签名。 在本类的工具方法中，凡涉及到时间的本地化表现形式时，都用String格式。</br>* 凡涉及到子<b>1970-01-01 08:00:00</b> 至某个时间的值时，都用long来表示</br>* * 本类提供的方法都是依照中国<b>GTM+08:00</b>的时区来计算。</br> 所有的本地化都是按照简体中文 “zh” 来计算。</br>* * <p>* 请注意：获取的当前毫秒值因为操作系统的原因，都有误差！而且在间隔很小的时间段内（大约十几毫秒，根据操作系统的不用而不同）获取到的* 毫秒值可能相同，可以理解为不同操作系统的最小时间单位为十几毫秒。* </p>* @version 1.0* @author lixunhui@qq.com* @since JDK 1.6**/
public class DateTools {// 日期式样，年月日，用横杠离开，例如：2006-12-25，2008-08-08private static final String YYYY_MM_DD = "yyyy-MM-dd";// 日期式样时分秒，时分秒用冒号离开，private static final String HH_MI_SS = "HH:mm:ss";// 日期式样，年月日时分秒，年月日用横杠离开，时分秒用冒号离开，private static final String YYYY_MM_DD_HH_MI_SS = "yyyy-MM-dd HH:mm:ss";// 中国时区private static TimeZone zone = TimeZone.getTimeZone("GMT+08:00");// 中国国家语言格式private static Locale locale = Locale.CHINESE;private static final SimpleDateFormat FORMAT_YYYY_MM_DD = new SimpleDateFormat(YYYY_MM_DD);private static final SimpleDateFormat FORMAT_HH_MI_SS = new SimpleDateFormat(HH_MI_SS);private static final SimpleDateFormat FORMAT_YYYY_MM_DD_HH_MI_SS = new SimpleDateFormat(YYYY_MM_DD_HH_MI_SS);private static final int YEAR = 24 * 60 * 60 * 365;private static final int MONTH = 24 * 60 * 60 * 30;private static final int DAY = 24 * 60 * 60;private static final int HOUR = 60 * 60;private static final int MINUTE = 60;public static void main(String[] args) {/*** String preMonthFirstDayDate = getPreMonthFirstDayDate();* System.out.println("preMonthFirstDayDate:" + preMonthFirstDayDate);* long preMonthFirstDayInMillis = getPreMonthFirstDayInMillis();* System.out.println("preMonthFirstDayInMillis:" +* preMonthFirstDayInMillis); long preMonthFirstDayInSeconds =* getPreMonthFirstDayInSeconds();* System.out.println("preMonthFirstDayInSeconds:" +* preMonthFirstDayInSeconds); String preMonthFirstDayTime =* getPreMonthFirstDayTime(); System.out.println("preMonthFirstDayTime:"* + preMonthFirstDayTime); String preMonthLastDayDate =* getPreMonthLastDayDate(); System.out.println("preMonthLastDayDate:" +* preMonthLastDayDate); long preMonthLastDayInMillis =* getPreMonthLastDayInMillis();* System.out.println("preMonthLastDayInMillis:" +* preMonthLastDayInMillis); long preMonthLastDayInSeconds =* getPreMonthLastDayInSeconds();* System.out.println("preMonthLastDayInSeconds:" +* preMonthLastDayInSeconds); String preMonthLastDayTime =* getPreMonthLastDayTime(); System.out.println("preMonthLastDayTime:" +* preMonthLastDayTime);**//*** String currMonthFirstDayDate = getCurrMonthFirstDayDate();* System.out.println("currMonthFirstDayDate:" + currMonthFirstDayDate);* long currMonthFirstDayInMillis = getCurrMonthFirstDayInMillis();* System.out.println("currMonthFirstDayInMillis:" +* currMonthFirstDayInMillis); long currMonthFirstDayInSeconds =* getCurrMonthFirstDayInSeconds();* System.out.println("currMonthFirstDayInSeconds:" +* currMonthFirstDayInSeconds); String currMonthFirstDayTime =* getCurrMonthFirstDayTime();* System.out.println("currMonthFirstDayTime:" + currMonthFirstDayTime);* long preMonthLastDayInSeconds = getPreMonthLastDayInSeconds();* System.out.println("preMonthLastDayInSeconds:" +* preMonthLastDayInSeconds); long preMonthLastDayInMillis =* getPreMonthLastDayInMillis();* System.out.println("preMonthLastDayInMillis:" +* preMonthLastDayInMillis);**//*** String currYearFirstDayDate = getCurrYearFirstDayDate();* System.out.println("currYearFirstDayDate:" + currYearFirstDayDate);* String preYearFirstDayDate = getPreYearFirstDayDate();* System.out.println("preYearFirstDayDate:" + preYearFirstDayDate);* long preYearFirstDayInMillis = getPreYearFirstDayInMillis();* System.out.println("preYearFirstDayInMillis:" +* preYearFirstDayInMillis); long preYearFirstDayInSeconds =* getPreYearFirstDayInSeconds();* System.out.println("preYearFirstDayInSeconds:"* +preYearFirstDayInSeconds); String preYearFirstDayTime =* getPreYearFirstDayTime(); System.out.println("preYearFirstDayTime:" +* preYearFirstDayTime); String preYearLastDayDate =* getPreYearLastDayDate(); System.out.println("preYearLastDayDate:" +* preYearLastDayDate); long preYearLastDayInMillis =* getPreYearLastDayInMillis();* System.out.println("preYearLastDayInMillis:" +* preYearLastDayInMillis); long preYearLastDayInSeconds =* getPreYearLastDayInSeconds();* System.out.println("preYearLastDayInSeconds:" +* preYearLastDayInSeconds); String preYearLastDayTime =* getPreYearLastDayTime(); System.out.println("preYearLastDayTime:" +* preYearLastDayTime);**//*** for(int i=0;i<5;i++){ long currMonthFirstDayInMillis =* getPreYearFirstDayInMillis();* System.out.println("currMonthFirstDayInMillis:" +* currMonthFirstDayInMillis); }* * * long parseTime2Second = parseTime2Second("2006-01-01 07:59:59"); long* parseTime2Second2 = parseTime2Second("2006-01-01 08:00:00");* System.out.println(parseTime2Second);* System.out.println(parseTime2Second2);**/String parseSecond2Days = parseSecond2Days(99999999);System.out.println(parseSecond2Days);}/*** 获取当前时间的本地化表现形式。 如：2012-07-03 18:15:03 yyyy-MM-dd HH:mm:ss* * @return yyyy-MM-dd HH:mm:ss 本地化表现形式*/public static String currentTime() {Calendar calendar = Calendar.getInstance(zone, locale);Calendar.getInstance(zone, locale);Date time = calendar.getTime();String format = FORMAT_YYYY_MM_DD_HH_MI_SS.format(time);return format;}/*** 获取当前日期的本地化表现形式,不包含时间。 如：2012-07-03 yyyy-MM-dd* * @return yyyy-MM-dd 本地化表现形式*/public static String currentDate() {Calendar calendar = Calendar.getInstance(zone, locale);Date time = calendar.getTime();String format = FORMAT_YYYY_MM_DD.format(time);return format;}/*** 获取当前时间至1970-01-01 08:00:00 的毫秒值。 如：1341368657874* * @return long型 毫秒值*/public static long currentTimeInMillis() {Calendar calendar = Calendar.getInstance(zone, locale);long timeInMillis = calendar.getTimeInMillis();return timeInMillis;}/*** 获取当前时间至1970-01-01 08:00:00 的秒值。 如：1341368867 该方法由毫秒值除以1000获得* * @return long型 秒值*/public static long currentTimeInSecond() {Calendar calendar = Calendar.getInstance(zone, locale);long timeInSecond = calendar.getTimeInMillis() / 1000;return timeInSecond;}/*** @param millis*            距1970-01-01 00:00:00.000的毫秒值* @return yyyy-MM-dd HH:mm:ss 本地化表现形式*/public static String parseMillis2Time(long millis) {Calendar calendar = Calendar.getInstance(zone, locale);calendar.setTimeInMillis(millis);Date time = calendar.getTime();String format = FORMAT_YYYY_MM_DD_HH_MI_SS.format(time);return format;}/*** * @param second*            距1970-1-1 00:00:00.000的秒值* @return yyyy-MM-dd HH:mm:ss 本地化表现形式* @see String parseMillis2Time(long millis)* @exception RuntimeException*                如果参数不能按照<code>yyyy-MM-dd HH:mm:ss</code>*                格式解析，会抛出RuntimeException*/public static String parseSecond2Time(long second) {return parseMillis2Time(second * 1000);}/*** * @param time*            "2012-07-04 12:19:34" 必须是 <code>yyyy-MM-dd HH:mm:ss</code> 格式* * @return long型 秒值* @exception RuntimeException*                如果参数不能按照<code>yyyy-MM-dd HH:mm:ss</code>*                格式解析，会抛出RuntimeException*/public static long parseTime2Second(String time) {if (time == null || time.trim().length() == 0) {return 0L;}Calendar calendar = Calendar.getInstance(zone, locale);Date date = null;try {date = FORMAT_YYYY_MM_DD_HH_MI_SS.parse(time);} catch (ParseException e) {e.printStackTrace();throw new RuntimeException("日期时间格式解析错误，请检查格式是否正确", e);}calendar.setTime(date);return calendar.getTimeInMillis() / 1000;}/*** 获取今天在 <code>00:00:00</code> 的日期和时间本地化表现形式* * @return <code>yyyy-MM-dd HH:mm:ss</code> 本地化表现形式*/public static String getTodayStartTime() {Calendar calendar = Calendar.getInstance(zone, locale);calendar.set(Calendar.HOUR_OF_DAY, 0);calendar.set(Calendar.MINUTE, 0);calendar.set(Calendar.SECOND, 0);calendar.set(Calendar.MILLISECOND, 0);Date date = calendar.getTime();String format = FORMAT_YYYY_MM_DD_HH_MI_SS.format(date);return format;}/*** 获取今天在 <code>00:00:00</code> 至 1970-01-01 08:00:00 的毫秒值* * @return long型 毫秒值*/public static long getTodayStartTimeInMillis() {Calendar calendar = Calendar.getInstance(zone, locale);calendar.set(Calendar.HOUR_OF_DAY, 0);calendar.set(Calendar.MINUTE, 0);calendar.set(Calendar.SECOND, 0);calendar.set(Calendar.MILLISECOND, 0);Date date = calendar.getTime();return date.getTime();}/*** 获取今天在 <code>00:00:00</code> 至 1970-01-01 08:00:00 的秒值</br>* * @return long型 秒值* @see long getTodayStartTimeInMillis()*/public static long getTodayStartTimeInSeconds() {return getTodayStartTimeInMillis() / 1000;}public static String getTodayEndTimes() {return parseMillis2Time(getTodayEndTimeInMillis());}/*** 获取今天在23:59:59 至 1970-01-01 08:00:00 的秒值</br> 假如今天是 2012-07-04，则返回* 2012-07-04 23:59:59 至 1970-01-01 08:00:00 的秒值* * @return long型 秒值*/public static long getTodayEndTimeInSeconds() {return getTodayEndTimeInMillis() / 1000;}/*** 获取今天在凌晨23:59:59 至 1970-01-01 08:00:00 的毫秒值</br> 假如今天是 2012-07-04，则返回* 2012-07-04 23:59:59 至 1970-01-01 08:00:00 的毫秒值* * @return long型 毫秒值*/public static long getTodayEndTimeInMillis() {Calendar todayEnd = Calendar.getInstance(zone, locale);todayEnd.set(Calendar.HOUR, 23);todayEnd.set(Calendar.MINUTE, 59);todayEnd.set(Calendar.SECOND, 59);todayEnd.set(Calendar.MILLISECOND, 999);Date date = todayEnd.getTime();return date.getTime();}/*** 获取 自 昨天00:00:00.000 至 1970-01-01 08:00:00 的毫秒值</br> 假如今天是 2012-07-04，则返回* 2012-07-03 00:00:00 至 1970-01-01 08:00:00 的毫秒值* * @return long型 毫秒值*/public static long getYesterdayStartTimeInMillis() {Calendar calendar = Calendar.getInstance(zone, locale);calendar.set(Calendar.HOUR_OF_DAY, 0);calendar.set(Calendar.MINUTE, 0);calendar.set(Calendar.SECOND, 0);calendar.set(Calendar.MILLISECOND, 0);calendar.add(Calendar.DAY_OF_MONTH, -1);Date date = calendar.getTime();return date.getTime();}/*** 获取 自 昨天00:00:00 至 1970-01-01 08:00:00 的秒值</br> 假如今天是 2012-07-04，则返回* 2012-07-03 00:00:00 至 1970-01-01 08:00:00 的秒值* * @return long型 秒值*/public static long getYesterdayStartTimeInSeconds() {return getYesterdayStartTimeInMillis() / 1000;}/*** 获取昨天按照 <code>yyyy-MM-dd 00:00:00</code> 本地化表现形式 假如今天是2012-07-04，则返回* 2012-07-03 00:00:00* * @return 昨天按照 <code>yyyy-MM-dd 00:00:00</code> 本地化表现形式*/public static String getYesterdayStartTime() {Calendar calendar = Calendar.getInstance(zone, locale);calendar.set(Calendar.HOUR_OF_DAY, 0);calendar.set(Calendar.MINUTE, 0);calendar.set(Calendar.SECOND, 0);calendar.set(Calendar.MILLISECOND, 0);calendar.add(Calendar.DAY_OF_MONTH, -1);Date date = calendar.getTime();return FORMAT_YYYY_MM_DD_HH_MI_SS.format(date);}/*** 获取昨天按照 <code>yyyy-MM-dd</code> 本地化表现形式</br> 假如今天是2012-07-04，则返回* 2012-07-03* * @return 获取昨天按照 <code>yyyy-MM-dd</code> 本地化表现形式*/public static String getYesterdayDate() {Calendar calendar = Calendar.getInstance(zone, locale);calendar.add(Calendar.DAY_OF_MONTH, -1);Date date = calendar.getTime();return FORMAT_YYYY_MM_DD.format(date);}/*** 获取昨天在午夜23:59:59 至 1970-01-01 08:00:00 的毫秒值</br> 假如今天是 2012-07-04，则返回* 2012-07-03 23:59:59 至 1970-01-01 08:00:00 的毫秒值* * @return long型 毫秒值*/public static long getYesterdayEndTimeInMillis() {Calendar calendar = Calendar.getInstance(zone, locale);calendar.add(Calendar.DAY_OF_MONTH, -1);calendar.set(Calendar.HOUR_OF_DAY, 23);calendar.set(Calendar.MINUTE, 59);calendar.set(Calendar.SECOND, 59);calendar.set(Calendar.MILLISECOND, 999);Date date = calendar.getTime();return date.getTime();}/*** 获取昨天在午夜23:59:59 至 1970-01-01 08:00:00 的秒值</br> 假如今天是 2012-07-04，则返回* 2012-07-03 23:59:59 至 1970-01-01 08:00:00 的秒值* * @return long型 秒值*/public static long getYesterdayEndTimeInSeconds() {return getYesterdayEndTimeInMillis();}/*** 获取上个月第一天的按照 <code>yyyy-MM-01 00:00:00</code> 本地化表现形式</br>* 假如今天是2012-07-04，则返回2012-06-01 00:00:00* * @return 获取上个月第一天的按照 <code>yyyy-MM-01 00:00:00</code> 本地化表现形式</br>*/public static String getPreMonthFirstDayTime() {Calendar calendar = Calendar.getInstance(zone, locale);calendar.add(Calendar.MONTH, -1);calendar.set(Calendar.DAY_OF_MONTH, 1);calendar.set(Calendar.HOUR_OF_DAY, 0);calendar.set(Calendar.MINUTE, 0);calendar.set(Calendar.SECOND, 0);calendar.set(Calendar.MILLISECOND, 0);Date date = calendar.getTime();return FORMAT_YYYY_MM_DD_HH_MI_SS.format(date);}/*** 获取上个月第一天的按照 <code>yyyy-MM-01</code> 本地化表现形式</br>* 假如今天是2012-07-04，则返回2012-06-01* * @return 获取上个月第一天的按照 <code>yyyy-MM-01</code> 本地化表现形式</br>*/public static String getPreMonthFirstDayDate() {Calendar calendar = Calendar.getInstance(zone, locale);calendar.add(Calendar.MONTH, -1);calendar.set(Calendar.DAY_OF_MONTH, 1);Date date = calendar.getTime();return FORMAT_YYYY_MM_DD.format(date);}/*** 获取上个月第一天的00:00:00 至 1970-01-01 08:00:00 的毫秒值</br> 假如今天是 2012-07-04，则返回* 2012-06-30 00:00:00 至 1970-01-01 08:00:00 的毫秒值* * @return long 毫秒值*/public static long getPreMonthFirstDayInMillis() {Calendar calendar = Calendar.getInstance(zone, locale);calendar.add(Calendar.MONTH, -1);calendar.set(Calendar.DAY_OF_MONTH, 1);calendar.set(Calendar.HOUR_OF_DAY, 0);calendar.set(Calendar.MINUTE, 0);calendar.set(Calendar.SECOND, 0);calendar.set(Calendar.MILLISECOND, 0);Date date = calendar.getTime();return date.getTime();}/*** 获取上个月第一天的00:00:00 至 1970-01-01 08:00:00 的秒值</br> 假如今天是 2012-07-04，则返回* 2012-06-30 00:00:00 至 1970-01-01 08:00:00 的秒值* * @return long 秒值*/public static long getPreMonthFirstDayInSeconds() {return getPreMonthFirstDayInMillis() / 1000;}/*** 获取上个月最后一天的按照 <code>yyyy-MM-dd 23:59:59</code> 本地化表现形式</br>* 假如今天是2012-07-04，则返回2012-06-30 23:59:59* * @return 获取上个月最后一天的按照 <code>yyyy-MM-dd 23:59:59</code> 本地化表现形式</br>*/public static String getPreMonthLastDayTime() {Calendar calendar = Calendar.getInstance(zone, locale);calendar.set(Calendar.DAY_OF_MONTH, 1);calendar.add(Calendar.DAY_OF_MONTH, -1);calendar.set(Calendar.HOUR_OF_DAY, 23);calendar.set(Calendar.MINUTE, 59);calendar.set(Calendar.SECOND, 59);calendar.set(Calendar.MILLISECOND, 999);Date date = calendar.getTime();return FORMAT_YYYY_MM_DD_HH_MI_SS.format(date);}/*** 获取上个月最后一天的按照 <code>yyyy-MM-dd</code> 本地化表现形式</br>* 假如今天是2012-07-04，则返回2012-06-30* * @return 获取上个月最后一天的按照 <code>yyyy-MM-dd</code> 本地化表现形式</br>*/public static String getPreMonthLastDayDate() {Calendar calendar = Calendar.getInstance(zone, locale);calendar.set(Calendar.DAY_OF_MONTH, 1);calendar.add(Calendar.DAY_OF_MONTH, -1);Date date = calendar.getTime();return FORMAT_YYYY_MM_DD.format(date);}/*** 获取上个月最后一天的23:59:59 至 1970-01-01 08:00:00 的毫秒值</br> 假如今天是 2012-07-04，则返回* 2012-06-30 23:59:59 至 1970-01-01 08:00:00 的毫秒值* * @return long 毫秒值*/public static long getPreMonthLastDayInMillis() {Calendar calendar = Calendar.getInstance(zone, locale);calendar.set(Calendar.DAY_OF_MONTH, 1);calendar.add(Calendar.DAY_OF_MONTH, -1);calendar.set(Calendar.HOUR_OF_DAY, 23);calendar.set(Calendar.MINUTE, 59);calendar.set(Calendar.SECOND, 59);calendar.set(Calendar.MILLISECOND, 999);Date date = calendar.getTime();return date.getTime();}/*** 获取上个月最后一天的23:59:59 至 1970-01-01 08:00:00 的秒值</br> 假如今天是 2012-07-04，则返回* 2012-06-30 23:59:59 至 1970-01-01 08:00:00 的秒值* * @return long 秒值*/public static long getPreMonthLastDayInSeconds() {return getPreMonthLastDayInMillis() / 1000;}/*** 获取当前月第一天按照 <code>yyyy-MM-dd 00:00:00</code> 本地化表现形式</br>* 假如今天是2012-07-04，则返回2012-07-01 00:00:00* * @return 获取当前月第一天按照 <code>yyyy-MM-dd 00:00:00</code> 本地化表现形式</br>*/public static String getCurrMonthFirstDayTime() {Calendar calendar = Calendar.getInstance(zone, locale);calendar.set(Calendar.DAY_OF_MONTH, 1);calendar.set(Calendar.HOUR_OF_DAY, 0);calendar.set(Calendar.MINUTE, 0);calendar.set(Calendar.SECOND, 0);calendar.set(Calendar.MILLISECOND, 0);Date date = calendar.getTime();return FORMAT_YYYY_MM_DD_HH_MI_SS.format(date);}/*** 获取当前月第一天按照 <code>yyyy-MM-dd</code> 本地化表现形式</br>* 假如今天是2012-07-04，则返回2012-07-01* * @return 获取当前月第一天按照 <code>yyyy-MM-dd</code> 本地化表现形式</br>*/public static String getCurrMonthFirstDayDate() {Calendar calendar = Calendar.getInstance(zone, locale);calendar.set(Calendar.DAY_OF_MONTH, 1);calendar.set(Calendar.HOUR_OF_DAY, 0);calendar.set(Calendar.MINUTE, 0);calendar.set(Calendar.SECOND, 0);calendar.set(Calendar.MILLISECOND, 0);Date date = calendar.getTime();return FORMAT_YYYY_MM_DD.format(date);}/*** 获取当前月第一天的00:00:00 至 1970-01-01 08:00:00 的毫秒值</br> 假如今天是 2012-07-04，则返回* 2012-07-01 00:00:00 至 1970-01-01 08:00:00 的毫秒值* * @return long 毫秒值*/public static long getCurrMonthFirstDayInMillis() {Calendar calendar = Calendar.getInstance(zone, locale);calendar.set(Calendar.DAY_OF_MONTH, 1);calendar.set(Calendar.HOUR_OF_DAY, 0);calendar.set(Calendar.MINUTE, 0);calendar.set(Calendar.SECOND, 0);calendar.set(Calendar.MILLISECOND, 0);Date date = calendar.getTime();return date.getTime();}/*** 获取当前月第一天的00:00:00 至 1970-01-01 08:00:00 的秒值</br> 假如今天是 2012-07-04，则返回* 2012-07-01 00:00:00 至 1970-01-01 08:00:00 的秒值* * @return long 毫秒值*/public static long getCurrMonthFirstDayInSeconds() {return getCurrMonthFirstDayInMillis() / 1000;}/*** 获取今年第一天按照 <code>yyyy-MM-dd 00:00:00</code> 本地化表现形式</br>* 假如今天是2012-07-04，则返回2012-01-01* * @return 获取今年第一天按照 <code>yyyy-MM-dd</code> 本地化表现形式</br>*/public static String getCurrYearFirstDayDate() {Calendar calendar = Calendar.getInstance(zone, locale);calendar.set(calendar.get(Calendar.YEAR), Calendar.JANUARY, 1);Date date = calendar.getTime();return FORMAT_YYYY_MM_DD.format(date);}/*** 获取今年第一天按照 <code>yyyy-MM-dd 00:00:00</code> 本地化表现形式</br>* 假如今天是2012-07-04，则返回2012-01-01 00:00:00* * @return 获取今年第一天按照 <code>yyyy-MM-dd 00:00:00</code> 本地化表现形式</br>*/public static String getCurrYearFirstDayTime() {Calendar calendar = Calendar.getInstance(zone, locale);calendar.set(calendar.get(Calendar.YEAR), Calendar.JANUARY, 1, 0, 0, 0);Date date = calendar.getTime();return FORMAT_YYYY_MM_DD_HH_MI_SS.format(date);}/*** 获取今年第一天的00:00:00 至 1970-01-01 08:00:00 的毫秒值</br> 假如今天是 2012-07-04，则返回* 2012-01-01 00:00:00 至 1970-01-01 08:00:00 的毫秒值* * @return long 毫秒值*/public static long getCurrYearFirstDayInMillis() {Calendar calendar = Calendar.getInstance(zone, locale);calendar.set(calendar.get(Calendar.YEAR), Calendar.JANUARY, 1, 0, 0, 0);Date date = calendar.getTime();return date.getTime();}/*** 获取今年第一天的00:00:00 至 1970-01-01 08:00:00 的秒值</br> 假如今天是 2012-07-04，则返回* 2012-01-01 00:00:00 至 1970-01-01 08:00:00 的秒值* * @return long 毫秒值*/public static long getCurrYearFirstDayInSeconds() {return getCurrYearFirstDayInMillis() / 1000;}/*** 获取去年第一天按照 <code>yyyy-MM-dd 00:00:00</code> 本地化表现形式</br>* 假如今天是2012-07-04，则返回2011-01-01 00:00:00* * @return 获取今年第一天按照 <code>yyyy-MM-dd 00:00:00</code> 本地化表现形式</br>*/public static String getPreYearFirstDayTime() {Calendar calendar = Calendar.getInstance(zone, locale);calendar.set((calendar.get(Calendar.YEAR)) - 1, Calendar.JANUARY, 1, 0, 0, 0);Date date = calendar.getTime();return FORMAT_YYYY_MM_DD_HH_MI_SS.format(date);}/*** 获取去年第一天按照 <code>yyyy-MM-dd</code> 本地化表现形式</br>* 假如今天是2012-07-04，则返回2011-01-01* * @return 获取今年第一天按照 <code>yyyy-MM-dd</code> 本地化表现形式</br>*/public static String getPreYearFirstDayDate() {Calendar calendar = Calendar.getInstance(zone, locale);calendar.set((calendar.get(Calendar.YEAR)) - 1, Calendar.JANUARY, 1);Date date = calendar.getTime();return FORMAT_YYYY_MM_DD.format(date);}/*** 获取去年第一天的00:00:00 至 1970-01-01 08:00:00 的毫秒值</br> 假如今天是 2012-07-04，则返回* 2011-01-01 00:00:00 至 1970-01-01 08:00:00 的毫秒值* * @return long 毫秒值*/public static long getPreYearFirstDayInMillis() {Calendar calendar = Calendar.getInstance(zone, locale);calendar.set((calendar.get(Calendar.YEAR)) - 1, Calendar.JANUARY, 1, 0, 0, 0);calendar.set(Calendar.MILLISECOND, 0);Date date = calendar.getTime();return date.getTime();}/*** 获取去年第一天的00:00:00 至 1970-01-01 08:00:00 的秒值</br> 假如今天是 2012-07-04，则返回* 2011-01-01 00:00:00 至 1970-01-01 08:00:00 的秒值* * @return long 秒值* @see getPreYearFirstDayInMillis()*/public static long getPreYearFirstDayInSeconds() {return getPreYearFirstDayInMillis() / 1000;}/*** 获取去年最后一天按照 <code>yyyy-MM-dd 23:59:59</code> 本地化表现形式</br>* 假如今天是2012-07-04，则返回2011-12-31 23:59:59* * @return 获取去年最后一天按照 <code>yyyy-MM-dd 23:59:59</code> 本地化表现形式</br>*/public static String getPreYearLastDayTime() {Calendar calendar = Calendar.getInstance(zone, locale);calendar.set((calendar.get(Calendar.YEAR)) - 1, Calendar.DECEMBER, 31, 23, 59, 59);calendar.set(Calendar.MILLISECOND, 999);Date date = calendar.getTime();return FORMAT_YYYY_MM_DD_HH_MI_SS.format(date);}/*** 获取去年最后一天按照 <code>yyyy-MM-dd</code> 本地化表现形式</br>* 假如今天是2012-07-04，则返回2011-12-31* * @return 获取去年最后一天按照 <code>yyyy-MM-dd</code> 本地化表现形式</br>*/public static String getPreYearLastDayDate() {Calendar calendar = Calendar.getInstance(zone, locale);calendar.set((calendar.get(Calendar.YEAR)) - 1, Calendar.DECEMBER, 31);calendar.set(Calendar.MILLISECOND, 999);Date date = calendar.getTime();return FORMAT_YYYY_MM_DD.format(date);}/*** 获取去年最后一天的00:00:00 至 1970-01-01 08:00:00 的毫秒值</br> 假如今天是 2012-07-04，则返回* 2011-12-31 23:59:59 至 1970-01-01 08:00:00 的毫秒值* * @return long 毫秒值*/public static long getPreYearLastDayInMillis() {Calendar calendar = Calendar.getInstance(zone, locale);calendar.set((calendar.get(Calendar.YEAR)) - 1, Calendar.DECEMBER, 31, 23, 59, 59);calendar.set(Calendar.MILLISECOND, 999);Date date = calendar.getTime();return date.getTime();}/*** 获取去年最后一天的00:00:00 至 1970-01-01 08:00:00 的秒值</br> 假如今天是 2012-07-04，则返回* 2011-12-31 23:59:59 至 1970-01-01 08:00:00 的秒值* * @return long 秒值* @see getPreYearLastDayInMillis()*/public static long getPreYearLastDayInSeconds() {return getPreYearLastDayInMillis() / 1000;}/*** 将 秒 换算成 X年X月X天* * @param second* @return*/public static String parseSecond2Days(int second) {int year = second / YEAR;int year_remainder = second % YEAR;int month = year_remainder / MONTH;int month_remainder = year_remainder % MONTH;int day = month_remainder / DAY;if (year == 0) {if (month == 0) {return day + "天";} else {return month + "月" + day + "天";}} else {return year + "年" + month + "月" + day + "天";}}
}