v1.2.5 修复公元0至4年转阴历错误的问题。

src/main/java/com/nlf/calendar/Lunar.java

@@ -22,7 +22,7 @@ public class Lunar {
   /**
    * 实际的节气表
    */
-  public static final String[] JIE_QI_IN_USE = {"DA_XUE", "冬至", "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", "DONG_ZHI", "XIAO_HAN", "DA_HAN", "LI_CHUN"};
+  public static final String[] JIE_QI_IN_USE = {"DA_XUE", "冬至", "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", "DONG_ZHI", "XIAO_HAN", "DA_HAN", "LI_CHUN", "YU_SHUI", "JING_ZHE"};
 
   /**
    * 农历年
@@ -242,6 +242,14 @@ public class Lunar {
     yearGanIndex = offset % 10;
     yearZhiIndex = offset % 12;
 
+    if (yearGanIndex < 0) {
+      yearGanIndex += 10;
+    }
+
+    if (yearZhiIndex < 0) {
+      yearZhiIndex += 12;
+    }
+
     //以立春作为新一年的开始的干支纪年
     int g = yearGanIndex;
     int z = yearZhiIndex;
@@ -819,6 +827,10 @@ public class Lunar {
       jq = "立春";
     }else if("DA_XUE".equals(jq)){
       jq = "大雪";
+    } else if ("YU_SHUI".equals(jq)) {
+      jq = "雨水";
+    } else if ("JING_ZHE".equals(jq)) {
+      jq = "惊蛰";
     }
     return jq;
   }

src/main/java/com/nlf/calendar/LunarYear.java

@@ -25,6 +25,8 @@ public class LunarYear {
 
   private static final Map<Integer, Integer> LEAP = new HashMap<Integer, Integer>();
 
+  private static final Map<Integer, LunarYear> CACHE = new HashMap<Integer, LunarYear>();
+
   static {
     for (int y : LEAP_11) {
       LEAP.put(y, 13);
@@ -66,12 +68,17 @@ public class LunarYear {
    * @return 农历年
    */
   public static LunarYear fromYear(int lunarYear) {
-    return new LunarYear(lunarYear);
+    LunarYear obj = CACHE.get(lunarYear);
+    if (null == obj) {
+      obj = new LunarYear(lunarYear);
+      CACHE.put(lunarYear, obj);
+    }
+    return obj;
   }
 
   private void compute() {
     // 节气(中午12点)
-    double[] jq = new double[25];
+    double[] jq = new double[27];
     // 合朔，即每月初一(中午12点)
     double[] hs = new double[16];
     // 每月天数
@@ -87,7 +94,7 @@ public class LunarYear {
       t += ShouXingUtil.ONE_THIRD - ShouXingUtil.dtT(t);
       jieQiJulianDays.add(t + Solar.J2000);
       // 按中午12点算的节气
-      if (i > 0 && i < 26) {
+      if (i > 0 && i < 28) {
         jq[i - 1] = Math.round(t);
       }
     }

src/test/java/test/BaZiTest.java

@@ -240,4 +240,22 @@ public class BaZiTest {
     }
   }
 
+  @Test
+  public void test4() {
+    Lunar lunar = Lunar.fromYmd(1985, 12, 27);
+    Assert.assertEquals("1995-11-05", lunar.getEightChar().getYun(1).getStartSolar().toYmd());
+  }
+
+  @Test
+  public void test5() {
+    Lunar lunar = Lunar.fromYmd(1985, 1, 27);
+    Assert.assertEquals("1989-03-28", lunar.getEightChar().getYun(1).getStartSolar().toYmd());
+  }
+
+  @Test
+  public void test6() {
+    Lunar lunar = Lunar.fromYmd(1986, 12, 27);
+    Assert.assertEquals("1990-04-15", lunar.getEightChar().getYun(1).getStartSolar().toYmd());
+  }
+
 }

src/test/java/test/LunarTest.java

@@ -289,4 +289,46 @@ public class LunarTest {
     Assert.assertEquals("7013-12-24", solar.toString());
   }
 
+  @Test
+  public void test39() {
+    Solar solar = Solar.fromYmd(1987, 4, 12);
+    Lunar lunar = solar.getLunar();
+    Assert.assertEquals("一九八七年三月十五", lunar.toString());
+  }
+
+  @Test
+  public void test40() {
+    Solar solar = Solar.fromYmd(1987, 4, 13);
+    Lunar lunar = solar.getLunar();
+    Assert.assertEquals("一九八七年三月十六", lunar.toString());
+  }
+
+  @Test
+  public void test41() {
+    Solar solar = Solar.fromYmd(4, 2, 10);
+    Lunar lunar = solar.getLunar();
+    Assert.assertEquals("鼠", lunar.getYearShengXiao());
+  }
+
+  @Test
+  public void test42() {
+    Solar solar = Solar.fromYmd(4, 2, 9);
+    Lunar lunar = solar.getLunar();
+    Assert.assertEquals("猪", lunar.getYearShengXiao());
+  }
+
+  @Test
+  public void test43() {
+    Solar solar = Solar.fromYmd(1, 2, 12);
+    Lunar lunar = solar.getLunar();
+    Assert.assertEquals("鸡", lunar.getYearShengXiao());
+  }
+
+  @Test
+  public void test44() {
+    Solar solar = Solar.fromYmd(1, 1, 1);
+    Lunar lunar = solar.getLunar();
+    Assert.assertEquals("猴", lunar.getYearShengXiao());
+  }
+
 }