content: package com.eroad.widget.calendar.utils;
  
  import java.text.SimpleDateFormat;
  import java.util.ArrayList;
  import java.util.Calendar;
  import java.util.Date;
  import java.util.GregorianCalendar;
  import java.util.HashMap;
  import java.util.Locale;
  
  /**
   * @author jty
   * @date 2015年5月22日
   */
  public class ChinaDate {
  	final private static long[] lunarInfo = 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 };
  
  //final private static int[] year20 = new int[] { 1, 4, 1, 2, 1, 2, 1, 1, 2,
  //		1, 2, 1 };
  
  
  //final private static int[] year2000 = new int[] { 0, 3, 1, 2, 1, 2, 1, 1,
  //		2, 1, 2, 1 };
  
  public final static String[] nStr1 = new String[] { "", "正", "二", "三", "四",
  		"五", "六", "七", "八", "九", "十", "十一", "十二" };
  
  private final static String[] Gan = new String[] { "甲", "乙", "丙", "丁", "戊",
  		"己", "庚", "辛", "壬", "癸" };
  
  private final static String[] Zhi = new String[] { "子", "丑", "寅", "卯", "辰",
  		"巳", "午", "未", "申", "酉", "戌", "亥" };
  
  private final static String[] Animals = new String[] { "鼠", "牛", "虎", "兔",
  		"龙", "蛇", "马", "羊", "猴", "鸡", "狗", "猪" };
  
  //private final static String[] solarTerm = new String[] { "小寒", "大寒", "立春",
  //		"雨水", "惊蛰", "春分", "清明", "谷雨", "立夏", "小满", "芒种", "夏至", "小暑", "大暑",
  //		"立秋", "处暑", "白露", "秋分", "寒露", "霜降", "立冬", "小雪", "大雪", "冬至" };
  
  //private final static String[] sFtv = new String[] { "0101*元旦", "0214 情人节",
  //		"0308 妇女节", "0312 植树节", "0315 消费者权益日", "0401 愚人节", "0501 劳动节",
  //		"0504 青年节", "0512 护士节", "0601 儿童节", "0701 建党节", "0801 建军节",
  //		"0808 父亲节", "0909 毛泽东逝世纪念", "0910 教师节", "0928 孔子诞辰", "1001*国庆节",
  //		"1006 老人节", "1024 联合国日", "1112 孙中山诞辰", "1220 澳门回归", "1225 圣诞节",
  //		"1226 毛泽东诞辰" };
  
  //private final static String[] lFtv = new String[] { "0101*农历春节",
  //		"0115 元宵节", "0505 端午节", "0707 七夕情人节", "0815 中秋节", "0909 重阳节",
  //		"1208 腊八节", "1224 小年", "0100*除夕" };
  
  /**
   * 传回农历 y年的总天数
   * 
   * @param y
   * @return
   */
  final private static int lYearDays(int y) {
  	int i, sum = 348;
  	for (i = 0x8000; i > 0x8; i >>= 1) {
  		if ((lunarInfo[y - 1900] & i) != 0)
  			sum += 1;
  	}
  	return (sum + leapDays(y));
  }
  
  /**
   * 传回农历 y年闰月的天数
   * 
   * @param y
   * @return
   */
  final private static int leapDays(int y) {
  	if (leapMonth(y) != 0) {
  		if ((lunarInfo[y - 1900] & 0x10000) != 0)
  			return 30;
  		else
  			return 29;
  	} else
  		return 0;
  }
  
  /**
   * 传回农历 y年闰哪个月 1-12 , 没闰传回 0
   * 
   * @param y
   * @return
   */
  final private static int leapMonth(int y) {
  	return (int) (lunarInfo[y - 1900] & 0xf);
  }
  
  /**
   * 传回农历 y年m月的总天数
   * 
   * @param y
   * @param m
   * @return
   */
  final private static int monthDays(int y, int m) {
  	if ((lunarInfo[y - 1900] & (0x10000 >> m)) == 0)
  		return 29;
  	else
  		return 30;
  }
  
  /**
   * 传回农历 y年的生肖
   * 
   * @param y
   * @return
   */
  final public static String AnimalsYear(int y) {
  	return Animals[(y - 4) % 12];
  }
  
  /**
   * 传入 月日的offset 传回干支,0=甲子
   * 
   * @param num
   * @return
   */
  final private static String cyclicalm(int num) {
  	return (Gan[num % 10] + Zhi[num % 12]);
  }
  
  /**
   * 传入 offset 传回干支, 0=甲子
   * 
   * @param y
   * @return
   */
  final public static String cyclical(int y) {
  	int num = y - 1900 + 36;
  	return (cyclicalm(num));
  }
  
  /**
   * 传出农历.year0 .month1 .day2 .yearCyl3 .monCyl4 .dayCyl5 .isLeap6
   * 
   * @param y
   * @param m
   * @return
   */
  //final private long[] Lunar(int y, int m) {
  //	long[] nongDate = new long[7];
  //	int i = 0, temp = 0, leap = 0;
  //	Date baseDate = new GregorianCalendar(1900 + 1900, 1, 31).getTime();
  //	Date objDate = new GregorianCalendar(y + 1900, m, 1).getTime();
  //	long offset = (objDate.getTime() - baseDate.getTime()) / 86400000L;
  //	if (y < 2000)
  //		offset += year19[m - 1];
  //	if (y > 2000)
  //		offset += year20[m - 1];
  //	if (y == 2000)
  //		offset += year2000[m - 1];
  //	nongDate[5] = offset + 40;
  //	nongDate[4] = 14;
  //
  //	for (i = 1900; i < 2050 && offset > 0; i++) {
  //		temp = lYearDays(i);
  //		offset -= temp;
  //		nongDate[4] += 12;
  //	}
  //	if (offset < 0) {
  //		offset += temp;
  //		i--;
  //		nongDate[4] -= 12;
  //	}
  //	nongDate[0] = i;
  //	nongDate[3] = i - 1864;
  //	leap = leapMonth(i); // 闰哪个月
  //	nongDate[6] = 0;
  //
  //	for (i = 1; i < 13 && offset > 0; i++) {
  //		// 闰月
  //		if (leap > 0 && i == (leap + 1) && nongDate[6] == 0) {
  //			--i;
  //			nongDate[6] = 1;
  //			temp = leapDays((int) nongDate[0]);
  //		} else {
  //			temp = monthDays((int) nongDate[0], i);
  //		}
  //
  //		// 解除闰月
  //		if (nongDate[6] == 1 && i == (leap + 1))
  //			nongDate[6] = 0;
  //		offset -= temp;
  //		if (nongDate[6] == 0)
  //			nongDate[4]++;
  //	}
  //
  //	if (offset == 0 && leap > 0 && i == leap + 1) {
  //		if (nongDate[6] == 1) {
  //			nongDate[6] = 0;
  //		} else {
  //			nongDate[6] = 1;
  //			--i;
  //			--nongDate[4];
  //		}
  //	}
  //	if (offset < 0) {
  //		offset += temp;
  //		--i;
  //		--nongDate[4];
  //	}
  //	nongDate[1] = i;
  //	nongDate[2] = offset + 1;
  //	return nongDate;
  //}
  
  /**
   * 传出y年m月d日对应的农历.year0 .month1 .day2 .yearCyl3 .monCyl4 .dayCyl5 .isLeap6
   * 
   * @param y
   * @param m
   * @param d
   * @return
   */
  final public static long[] calElement(int y, int m, int d) {
  	long[] nongDate = new long[7];
  	int i = 0, temp = 0, leap = 0;
  	Date baseDate = new GregorianCalendar(0 + 1900, 0, 31).getTime();
  	Date objDate = new GregorianCalendar(y, m - 1, d).getTime();
  	long offset = (objDate.getTime() - baseDate.getTime()) / 86400000L;
  	nongDate[5] = offset + 40;
  	nongDate[4] = 14;
  
  	for (i = 1900; i < 2050 && offset > 0; i++) {
  		temp = lYearDays(i);
  		offset -= temp;
  		nongDate[4] += 12;
  	}
  	if (offset < 0) {
  		offset += temp;
  		i--;
  		nongDate[4] -= 12;
  	}
  	nongDate[0] = i;
  	nongDate[3] = i - 1864;
  	leap = leapMonth(i); // 闰哪个月,没闰返回0
  	nongDate[6] = 0;
  
  	for (i = 1; i < 13 && offset > 0; i++) {
  		// 闰月
  		if (leap > 0 && i == (leap + 1) && nongDate[6] == 0) {
  			--i;
  			nongDate[6] = 1;
  			temp = leapDays((int) nongDate[0]);
  		} else {
  			temp = monthDays((int) nongDate[0], i);
  		}
  
  		// 解除闰月
  		if (nongDate[6] == 1 && i == (leap + 1))
  			nongDate[6] = 0;
  		offset -= temp;
  		if (nongDate[6] == 0)
  			nongDate[4]++;
  	}
  
  	if (offset == 0 && leap > 0 && i == leap + 1) {
  		if (nongDate[6] == 1) {
  			nongDate[6] = 0;
  		} else {
  			nongDate[6] = 1;
  			--i;
  			--nongDate[4];
  		}
  	}
  	if (offset < 0) {
  		offset += temp;
  		--i;
  		--nongDate[4];
  	}
  	nongDate[1] = i;
  	nongDate[2] = offset + 1;
  	return nongDate;
  }
  
  /**
   * 传入天数可以 得到旧历的显示
   * @param day
   * @return
   */
  public final static String getChinaDate(int day) {
  	String a = "";
  	if (day == 10)
  		return "初十";
  	if (day == 20)
  		return "二十";
  	if (day == 30)
  		return "卅十";
  	int two = (int) ((day) / 10);
  	if (two == 0)
  		a = "初";
  	if (two == 1)
  		a = "十";
  	if (two == 2)
  		a = "廿";
  	if (two == 3)
  		a = "卅";
  	int one = (int) (day % 10);
  	switch (one) {
  	case 1:
  		a += "一";
  		break;
  	case 2:
  		a += "二";
  		break;
  	case 3:
  		a += "三";
  		break;
  	case 4:
  		a += "四";
  		break;
  	case 5:
  		a += "五";
  		break;
  	case 6:
  		a += "六";
  		break;
  	case 7:
  		a += "七";
  		break;
  	case 8:
  		a += "八";
  		break;
  	case 9:
  		a += "九";
  		break;
  	}
  	return a;
  }
  
  public static String today() {
  	Calendar today = Calendar.getInstance(Locale.SIMPLIFIED_CHINESE);
  	int year = today.get(Calendar.YEAR);
  	int month = today.get(Calendar.MONTH) + 1;
  	int date = today.get(Calendar.DATE);
  	long[] l = calElement(year, month, date);
  	StringBuffer sToday = new StringBuffer();
  	try {
  		sToday.append(sdf.format(today.getTime()));
  		sToday.append(" 农历");
  		sToday.append(cyclical(year));
  		sToday.append('(');
  		sToday.append(AnimalsYear(year));
  		sToday.append(")年");
  		sToday.append(nStr1[(int) l[1]]);
  		sToday.append("月");
  		sToday.append(getChinaDate((int) (l[2])));
  		return sToday.toString();
  	} finally {
  		sToday = null;
  	}
  }
  
  private static SimpleDateFormat sdf = new SimpleDateFormat("yyyy年M月d日 EEEEE");
  
  /**
   * 农历日历工具使用演示
   * 
   * @param args
   */
  public static void test() {
  	Calendar cal=Calendar.getInstance();
  	cal.set(Calendar.MONTH, 3);
  	cal.set(Calendar.DATE, 1);
  	long[] l;
  	for(int i=0;i<100;i++){
  		l = calElement(cal.get(Calendar.YEAR), cal.get(Calendar.MONTH)+1, cal.get(Calendar.DATE));
  		StringBuffer sToday = new StringBuffer();
  		sToday.append(sdf.format(cal.getTime()));
  		sToday.append(" 农历");
  		sToday.append(cyclical(cal.get(Calendar.YEAR)));
  		sToday.append('(');
  		sToday.append(AnimalsYear(cal.get(Calendar.YEAR)));
  		sToday.append(")年");
  		sToday.append(nStr1[(int) l[1]]);
  		sToday.append("月");
  		sToday.append(getChinaDate((int) (l[2])));
  		
  		cal.add(Calendar.DATE, 1);
  	}
  }
  
  public static ArrayList<HashMap<String,String>> getChinaDates(int currentyear,int month){
  	SimpleDateFormat myfmt = new SimpleDateFormat("yyyy-MM-dd");   
  	ArrayList<HashMap<String,String>> list=new ArrayList<HashMap<String,String>>();
  	Calendar cal=Calendar.getInstance();   //Locale.SIMPLIFIED_CHINESE
  	cal.set(Calendar.YEAR, currentyear);
  	cal.set(Calendar.MONTH, month);
  	cal.set(Calendar.DATE, 1);
  	long[] l;
  	HashMap<String,String> map;
  	while(cal.get(Calendar.MONTH)==month){
  		l = calElement(cal.get(Calendar.YEAR), cal.get(Calendar.MONTH)+1, cal.get(Calendar.DATE));
  		map=new HashMap<String,String>();
  		map.put("date", myfmt.format(cal.getTime()));
  		String chinadate=getChinaDate((int) (l[2]));
  		if(chinadate.equals("初一")){
  			chinadate=nStr1[(int) l[1]]+"月";
  		}
  		map.put("chinadate", chinadate);
  		list.add(map);
  		cal.add(Calendar.DATE, 1);
  	}
  	return list;
  }
  
  
  }
  