import java.util.calendar,CalendarUtil.java

package com.saint.libs.utils;

import java.text.SimpleDateFormat;

import java.util.Calendar;

import java.util.Date;

import java.util.Locale;

/**

* 把公历时间处理成农历时间

* @author Flannery

*/

class CalendarUtil {

/**

* 用于保存中文的月份

*/

private final static String CHINESE_NUMBER[] = { "一", "二", "三", "四", "五",

"六", "七", "八", "九", "十", "十一", "腊" };

/**

* 用于保存展示周几使用

*/

private final static String WEEK_NUMBER[] = { "日", "一", "二", "三", "四", "五",

"六" };

private final static long[] LUNAR_INFO = new long[] { 0x04bd8, 0x04ae0,

0x0a570, 0x054d5, 0x0d260, 0x0d950, 0x16554, 0x056a0, 0x09ad0,

0x055d2, 0x04ae0, 0x0a5b6, 0x0a4d0, 0x0d250, 0x1d255, 0x0b540,

0x0d6a0, 0x0ada2, 0x095b0, 0x14977, 0x04970, 0x0a4b0, 0x0b4b5,

0x06a50, 0x06d40, 0x1ab54, 0x02b60, 0x09570, 0x052f2, 0x04970,

0x06566, 0x0d4a0, 0x0ea50, 0x06e95, 0x05ad0, 0x02b60, 0x186e3,

0x092e0, 0x1c8d7, 0x0c950, 0x0d4a0, 0x1d8a6, 0x0b550, 0x056a0,

0x1a5b4, 0x025d0, 0x092d0, 0x0d2b2, 0x0a950, 0x0b557, 0x06ca0,

0x0b550, 0x15355, 0x04da0, 0x0a5d0, 0x14573, 0x052d0, 0x0a9a8,

0x0e950, 0x06aa0, 0x0aea6, 0x0ab50, 0x04b60, 0x0aae4, 0x0a570,

0x05260, 0x0f263, 0x0d950, 0x05b57, 0x056a0, 0x096d0, 0x04dd5,

0x04ad0, 0x0a4d0, 0x0d4d4, 0x0d250, 0x0d558, 0x0b540, 0x0b5a0,

0x195a6, 0x095b0, 0x049b0, 0x0a974, 0x0a4b0, 0x0b27a, 0x06a50,

0x06d40, 0x0af46, 0x0ab60, 0x09570, 0x04af5, 0x04970, 0x064b0,

0x074a3, 0x0ea50, 0x06b58, 0x055c0, 0x0ab60, 0x096d5, 0x092e0,

0x0c960, 0x0d954, 0x0d4a0, 0x0da50, 0x07552, 0x056a0, 0x0abb7,

0x025d0, 0x092d0, 0x0cab5, 0x0a950, 0x0b4a0, 0x0baa4, 0x0ad50,

0x055d9, 0x04ba0, 0x0a5b0, 0x15176, 0x052b0, 0x0a930, 0x07954,

0x06aa0, 0x0ad50, 0x05b52, 0x04b60, 0x0a6e6, 0x0a4e0, 0x0d260,

0x0ea65, 0x0d530, 0x05aa0, 0x076a3, 0x096d0, 0x04bd7, 0x04ad0,

0x0a4d0, 0x1d0b6, 0x0d250, 0x0d520, 0x0dd45, 0x0b5a0, 0x056d0,

0x055b2, 0x049b0, 0x0a577, 0x0a4b0, 0x0aa50, 0x1b255, 0x06d20,

0x0ada0 };

/**

* 转换为2012年11月22日格式

*/

private static SimpleDateFormat chineseDateFormat = new SimpleDateFormat(

"yyyy年MM月dd日", Locale.getDefault());

/**

* 转换为2012-11-22格式

*/

private static SimpleDateFormat simpleDateFormat = new SimpleDateFormat(

"yyyy-MM-dd", Locale.getDefault());

/**

* 计算得到农历的年份

*/

private int mLuchYear;

/**

* 计算得到农历的月份

*/

private int mLuchMonth;

/**

* 计算得到农历的日期

*/

private int mLuchDay;

/**

* 用于标识是事为闰年

*/

private boolean isLoap;

/**

* 用于记录当前处理的时间

*/

private Calendar mCurrenCalendar;

/**

* 传回农历 year年的总天数

*

* @param year

* 将要计算的年份

* @return 返回传入年份的总天数

*/

private static int yearDays(int year) {

int i, sum = 348;

for (i = 0x8000; i > 0x8; i >>= 1) {

if ((LUNAR_INFO[year - 1900] & i) != 0)

sum += 1;

}

return (sum + leapDays(year));

}

/**

* 传回农历 year年闰月的天数

*

* @param year

* 将要计算的年份

* @return 返回 农历 year年闰月的天数

*/

private static int leapDays(int year) {

if (leapMonth(year) != 0) {

if ((LUNAR_INFO[year - 1900] & 0x10000) != 0)

return 30;

else

return 29;

} else

return 0;

}

/**

* 传回农历 year年闰哪个月 1-12 , 没闰传回 0

*

* @param year

* 将要计算的年份

* @return 传回农历 year年闰哪个月 1-12 , 没闰传回 0

*/

private static int leapMonth(int year) {

return (int) (LUNAR_INFO[year - 1900] & 0xf);

}

/**

* 传回农历 year年month月的总天数

*

* @param year

* 将要计算的年份

* @param month

* 将要计算的月份

* @return 传回农历 year年month月的总天数

*/

private static int monthDays(int year, int month) {

if ((LUNAR_INFO[year - 1900] & (0x10000 >> month)) == 0)

return 29;

else

return 30;

}

/**

* 传回农历 y年的生肖

*

* @return 传回农历 y年的生肖

*/

public String animalsYear() {

final String[] Animals = new String[] { "鼠", "牛", "虎", "兔", "龙", "蛇",

"马", "羊", "猴", "鸡", "狗", "猪" };

return Animals[(mLuchYear - 4) % 12];

}

// ====== 传入 月日的offset 传回干支, 0=甲子

private static String cyclicalm(int num) {

final String[] Gan = new String[] { "甲", "乙", "丙", "丁", "戊", "己", "庚",

"辛", "壬", "癸" };

final String[] Zhi = new String[] { "子", "丑", "寅", "卯", "辰", "巳", "午",

"未", "申", "酉", "戌", "亥" };

return (Gan[num % 10] + Zhi[num % 12]);

}

// ====== 传入 offset 传回干支, 0=甲子

public String cyclical() {

int num = mLuchYear - 1900 + 36;

return (cyclicalm(num));

}

/**

* 传出y年m月d日对应的农历. yearCyl3:农历年与1864的相差数 ? monCyl4:从1900年1月31日以来,闰月数

* dayCyl5:与1900年1月31日相差的天数,再加40 ?

*

* @param cal

* @return

*/

public CalendarUtil(Calendar cal) {

mCurrenCalendar = cal;

int leapMonth = 0;

Date baseDate = null;

try {

baseDate = chineseDateFormat.parse("1900年1月31日");

} /*catch (ParseException e) {

e.printStackTrace(); // To change body of catch statement use

// Options | File Templates.

} */catch (java.text.ParseException e) {

e.printStackTrace();

}

// 求出和1900年1月31日相差的天数

int offset = (int) ((cal.getTime().getTime() - baseDate.getTime()) / 86400000L);

// 用offset减去每农历年的天数

// 计算当天是农历第几天

// i最终结果是农历的年份

// offset是当年的第几天

int iYear, daysOfYear = 0;

for (iYear = 1900; iYear < 2050 && offset > 0; iYear++) {

daysOfYear = yearDays(iYear);

offset -= daysOfYear;

}

if (offset < 0) {

offset += daysOfYear;

iYear--;

}

// 农历年份

mLuchYear = iYear;

leapMonth = leapMonth(iYear); // 闰哪个月,1-12

isLoap = false;

// 用当年的天数offset,逐个减去每月(农历)的天数，求出当天是本月的第几天

int iMonth, daysOfMonth = 0;

for (iMonth = 1; iMonth < 13 && offset > 0; iMonth++) {

// 闰月

if (leapMonth > 0 && iMonth == (leapMonth + 1) && !isLoap) {

--iMonth;

isLoap = true;

daysOfMonth = leapDays(mLuchYear);

} else

daysOfMonth = monthDays(mLuchYear, iMonth);

offset -= daysOfMonth;

// 解除闰月

if (isLoap && iMonth == (leapMonth + 1))

isLoap = false;

if (!isLoap) {

}

}

// offset为0时，并且刚才计算的月份是闰月，要校正

if (offset == 0 && leapMonth > 0 && iMonth == leapMonth + 1) {

if (isLoap) {

isLoap = false;

} else {

isLoap = true;

--iMonth;

}

}

// offset小于0时，也要校正

if (offset < 0) {

offset += daysOfMonth;

--iMonth;

}

mLuchMonth = iMonth;

mLuchDay = offset + 1;

}

/**

* 返化成中文格式

*

* @param day

* @return

*/

public static String getChinaDayString(int day) {

String chineseTen[] = { "初", "十", "廿", "卅" };

int n = day % 10 == 0 ? 9 : day % 10 - 1;

if (day > 30)

return "";

if (day == 10)

return "初十";

else

return chineseTen[day / 10] + CHINESE_NUMBER[n];

}

/**

* 用于显示农历的初几这种格式

*

* @return 农历的日期

*/

public String toString() {

String message = "";

// int n = mLuchDay % 10 == 0 ? 9 : mLuchDay % 10 - 1;

message = getChinaCalendarMsg(mLuchYear, mLuchMonth, mLuchDay);

if (StringUtil.isNullOrEmpty(message)) {

String solarMsg = new SolarTermsUtil(mCurrenCalendar)

.getSolartermsMsg();

// 判断当前日期是否为节气

if (!StringUtil.isNullOrEmpty(solarMsg)) {

message = solarMsg;

} else {

/**

* 判断当前日期是否为公历节日

*/

String gremessage = new GregorianUtil(mCurrenCalendar)

.getGremessage();

if (!StringUtil.isNullOrEmpty(gremessage)) {

message = gremessage;

} else if (mLuchDay == 1) {

message = CHINESE_NUMBER[mLuchMonth - 1] + "月";

} else {

message = getChinaDayString(mLuchDay);

}

}

}

return message;

}

public String getChinaDayString(){

return CHINESE_NUMBER[mLuchMonth - 1] + "月" + "" + getChinaDayString(mLuchDay);

}

/**

* 返回农历的年月日

*

* @return 农历的年月日格式

*/

public String getDay() {

return (isLoap ? "闰" : "") + CHINESE_NUMBER[mLuchMonth - 1] + "月"

+ getChinaDayString(mLuchDay);

}

/**

* 把calendar转化为当前年月日

*

* @param calendar

* Calendar

* @return 返回成转换好的 年月日格式

*/

public static String getDay(Calendar calendar) {

return simpleDateFormat.format(calendar.getTime());

}

/**

* 用于比对二个日期的大小

*

* @param compareDate

* 将要比对的时间

* @param currentDate

* 当前时间

* @return true 表示大于当前时间 false 表示小于当前时间

*/

public static boolean compare(Date compareDate, Date currentDate) {

return chineseDateFormat.format(compareDate).compareTo(

chineseDateFormat.format(currentDate)) >= 0;

}

/**

* 获取当前周几

*

* @param calendar

* @return

*/

public static String getWeek(Calendar calendar) {

return "周" + WEEK_NUMBER[calendar.get(Calendar.DAY_OF_WEEK) - 1] + "";

}

/**

* 将当前时间转换成要展示的形式

*

* @param calendar

* @return

*/

public static String getCurrentDay(Calendar calendar) {

return getDay(calendar) + " 农历" + new CalendarUtil(calendar).getDay()

+ " " + getWeek(calendar);

}

/**

* 用于获取中国的传统节日

*

* @param month

* 农历的月

* @param day

* 农历日

* @return 中国传统节日

*/

private String getChinaCalendarMsg(int year, int month, int day) {

String message = "";

if (((month) == 1) && day == 1) {

message = "春节";

} else if (((month) == 1) && day == 15) {

message = "元宵";

} else if (((month) == 5) && day == 5) {

message = "端午";

} else if ((month == 7) && day == 7) {

message = "七夕";

} else if (((month) == 8) && day == 15) {

message = "中秋";

} else if ((month == 9) && day == 9) {

message = "重阳";

} else if ((month == 12) && day == 8) {

message = "腊八";

} else {

if (month == 12) {

if ((((monthDays(year, month) == 29) && day == 29))

|| ((((monthDays(year, month) == 30) && day == 30)))) {

message = "除夕";

}

}

}

return message;

}

}

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