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：2006-12-25，2008-08-08
private 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";
}
}
}
Java时间操作工具类
Wesley13
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