1 package test;
2
3 import java.text.ParseException;
4 import java.text.SimpleDateFormat;
5 import java.util.Calendar;
6 import java.util.Date;
7 import java.util.TimeZone;
8
9 public class test {
10 private int year;
11 private int month;
12 private int day;
13 private boolean leap;
14 final static String chineseNumber[] = { "一", "二", "三", "四", "五", "六", "七",
15 "八", "九", "十", "十一", "十二" };
16 static SimpleDateFormat chineseDateFormat = new SimpleDateFormat(
17 "yyyy年MM月dd日");
18 final static long[] lunarInfo = new long[] { 0x04bd8, 0x04ae0, 0x0a570,
19 0x054d5, 0x0d260, 0x0d950, 0x16554, 0x056a0, 0x09ad0, 0x055d2,
20 0x04ae0, 0x0a5b6, 0x0a4d0, 0x0d250, 0x1d255, 0x0b540, 0x0d6a0,
21 0x0ada2, 0x095b0, 0x14977, 0x04970, 0x0a4b0, 0x0b4b5, 0x06a50,
22 0x06d40, 0x1ab54, 0x02b60, 0x09570, 0x052f2, 0x04970, 0x06566,
23 0x0d4a0, 0x0ea50, 0x06e95, 0x05ad0, 0x02b60, 0x186e3, 0x092e0,
24 0x1c8d7, 0x0c950, 0x0d4a0, 0x1d8a6, 0x0b550, 0x056a0, 0x1a5b4,
25 0x025d0, 0x092d0, 0x0d2b2, 0x0a950, 0x0b557, 0x06ca0, 0x0b550,
26 0x15355, 0x04da0, 0x0a5d0, 0x14573, 0x052d0, 0x0a9a8, 0x0e950,
27 0x06aa0, 0x0aea6, 0x0ab50, 0x04b60, 0x0aae4, 0x0a570, 0x05260,
28 0x0f263, 0x0d950, 0x05b57, 0x056a0, 0x096d0, 0x04dd5, 0x04ad0,
29 0x0a4d0, 0x0d4d4, 0x0d250, 0x0d558, 0x0b540, 0x0b5a0, 0x195a6,
30 0x095b0, 0x049b0, 0x0a974, 0x0a4b0, 0x0b27a, 0x06a50, 0x06d40,
31 0x0af46, 0x0ab60, 0x09570, 0x04af5, 0x04970, 0x064b0, 0x074a3,
32 0x0ea50, 0x06b58, 0x055c0, 0x0ab60, 0x096d5, 0x092e0, 0x0c960,
33 0x0d954, 0x0d4a0, 0x0da50, 0x07552, 0x056a0, 0x0abb7, 0x025d0,
34 0x092d0, 0x0cab5, 0x0a950, 0x0b4a0, 0x0baa4, 0x0ad50, 0x055d9,
35 0x04ba0, 0x0a5b0, 0x15176, 0x052b0, 0x0a930, 0x07954, 0x06aa0,
36 0x0ad50, 0x05b52, 0x04b60, 0x0a6e6, 0x0a4e0, 0x0d260, 0x0ea65,
37 0x0d530, 0x05aa0, 0x076a3, 0x096d0, 0x04bd7, 0x04ad0, 0x0a4d0,
38 0x1d0b6, 0x0d250, 0x0d520, 0x0dd45, 0x0b5a0, 0x056d0, 0x055b2,
39 0x049b0, 0x0a577, 0x0a4b0, 0x0aa50, 0x1b255, 0x06d20, 0x0ada0 };
40
41 // ====== 传回农历 y年的总天数
42 final private static int yearDays(int y) {
43 int i, sum = 348;
44 for (i = 0x8000; i > 0x8; i >>= 1) {
45 if ((lunarInfo[y - 1900] & i) != 0)
46 sum += 1;
47 }
48 return (sum + leapDays(y));
49 }
50
51 // ====== 传回农历 y年闰月的天数
52 final private static int leapDays(int y) {
53 if (leapMonth(y) != 0) {
54 if ((lunarInfo[y - 1900] & 0x10000) != 0)
55 return 30;
56 else
57 return 29;
58 } else
59 return 0;
60 }
61
62 // ====== 传回农历 y年闰哪个月 1-12 , 没闰传回 0
63 final private static int leapMonth(int y) {
64 return (int) (lunarInfo[y - 1900] & 0xf);
65 }
66
67 // ====== 传回农历 y年m月的总天数
68 final private static int monthDays(int y, int m) {
69 if ((lunarInfo[y - 1900] & (0x10000 >> m)) == 0)
70 return 29;
71 else
72 return 30;
73 }
74
75 // ====== 传回农历 y年的生肖
76 final public String animalsYear() {
77 final String[] Animals = new String[] { "鼠", "牛", "虎", "兔", "龙", "蛇",
78 "马", "羊", "猴", "鸡", "狗", "猪" };
79 return Animals[(year - 4) % 12];
80 }
81
82 // ====== 传入 月日的offset 传回干支, 0=甲子
83 final private static String cyclicalm(int num) {
84 final String[] Gan = new String[] { "甲", "乙", "丙", "丁", "戊", "己", "庚",
85 "辛", "壬", "癸" };
86 final String[] Zhi = new String[] { "子", "丑", "寅", "卯", "辰", "巳", "午",
87 "未", "申", "酉", "戌", "亥" };
88 return (Gan[num % 10] + Zhi[num % 12]);
89 }
90
91 // ====== 传入 offset 传回干支, 0=甲子
92 final public String cyclical() {
93 int num = year - 1900 + 36;
94 return (cyclicalm(num));
95 }
96
97 /**
98 * 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
99 * dayCyl5:与1900年1月31日相差的天数,再加40 ?
100 *
101 * @param cal
102 * @return
103 */
104 public test(Calendar cal) {
105 int yearCyl, monCyl, dayCyl;
106 int leapMonth = 0;
107 Date baseDate = null;
108 try {
109 baseDate = chineseDateFormat.parse("1900年1月31日");
110 } catch (ParseException e) {
111 e.printStackTrace(); // To change body of catch statement use
112 // Options | File Templates.
113 }
114
115 // 求出和1900年1月31日相差的天数
116 int offset = (int) ((cal.getTime().getTime() - baseDate.getTime()) / 86400000L);
117 dayCyl = offset + 40;
118 monCyl = 14;
119
120 // 用offset减去每农历年的天数
121 // 计算当天是农历第几天
122 // i最终结果是农历的年份
123 // offset是当年的第几天
124 int iYear, daysOfYear = 0;
125 for (iYear = 1900; iYear < 2050 && offset > 0; iYear++) {
126 daysOfYear = yearDays(iYear);
127 offset -= daysOfYear;
128 monCyl += 12;
129 }
130 if (offset < 0) {
131 offset += daysOfYear;
132 iYear--;
133 monCyl -= 12;
134 }
135 // 农历年份
136 year = iYear;
137
138 yearCyl = iYear - 1864;
139 leapMonth = leapMonth(iYear); // 闰哪个月,1-12
140 leap = false;
141
142 // 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
143 int iMonth, daysOfMonth = 0;
144 for (iMonth = 1; iMonth < 13 && offset > 0; iMonth++) {
145 // 闰月
146 if (leapMonth > 0 && iMonth == (leapMonth + 1) && !leap) {
147 --iMonth;
148 leap = true;
149 daysOfMonth = leapDays(year);
150 } else
151 daysOfMonth = monthDays(year, iMonth);
152
153 offset -= daysOfMonth;
154 // 解除闰月
155 if (leap && iMonth == (leapMonth + 1))
156 leap = false;
157 if (!leap)
158 monCyl++;
159 }
160 // offset为0时，并且刚才计算的月份是闰月，要校正
161 if (offset == 0 && leapMonth > 0 && iMonth == leapMonth + 1) {
162 if (leap) {
163 leap = false;
164 } else {
165 leap = true;
166 --iMonth;
167 --monCyl;
168 }
169 }
170 // offset小于0时，也要校正
171 if (offset < 0) {
172 offset += daysOfMonth;
173 --iMonth;
174 --monCyl;
175 }
176 month = iMonth;
177 day = offset + 1;
178 }
179
180 public static String getChinaDayString(int day) {
181 String chineseTen[] = { "初", "十", "廿", "卅" };
182 int n = day % 10 == 0 ? 9 : day % 10 - 1;
183 if (day > 30)
184 return "";
185 if (day == 10)
186 return "初十";
187 else
188 return chineseTen[day / 10] + chineseNumber[n];
189 }
190
191 public String toString() {
192 return year + "年" + (leap ? "闰" : "") + chineseNumber[month - 1] + "月"
193 + getChinaDayString(day);
194 }
195
196 public static void main(String[] args) throws ParseException {
//获取系统日期的农历
197 // Calendar cal=Calendar.getInstance();
198 // SimpleDateFormat sdf=new SimpleDateFormat("yyyy年MM月dd日");
199 // cal.setTimeZone(TimeZone.getDefault());
200 // System.out.println("公历日期:"+sdf.format(cal.getTime()));
201 // test lunar=new test(cal);
202 // System.out.print("农历日期:");
203 // System.out.print(lunar.year+"年 ");
204 // System.out.print(lunar.month+"月 ");
205 // System.out.print(getChinaDayString(lunar.day));
206 // System.out.println("*************");
207 // System.out.println(lunar);
208 //获取指定日期的农历
209 Calendar today = Calendar.getInstance();
210 today.setTime(chineseDateFormat.parse("1988年2月16日"));
211 test lunar = new test(today);
212 System.out.println("北京时间：" + chineseDateFormat.format(today.getTime())
213 + " 农历" + lunar);
214 }
215
216 }
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