v1.3.6 中元节改为农历七月十五；修复Solar的nextMonth超期问题。

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

@@ -714,19 +714,17 @@ public class Solar {
     int y = year + years;
     int m = month;
     int d = day;
-    // 2月处理
-    if (2 == m) {
+    if (1582 == y && 10 == m) {
+      if (d > 4 && d < 15) {
+        d += 10;
+      }
+    } else if (2 == m) {
       if (d > 28) {
         if (!SolarUtil.isLeapYear(y)) {
           d = 28;
         }
       }
     }
-    if (1582 == y && 10 == m) {
-      if (d > 4 && d < 15) {
-        d += 10;
-      }
-    }
     return fromYmdHms(y, m, d, hour, minute, second);
   }
 
@@ -740,18 +738,15 @@ public class Solar {
     int y = month.getYear();
     int m = month.getMonth();
     int d = day;
-    // 2月处理
-    if (2 == m) {
-      if (d > 28) {
-        if (!SolarUtil.isLeapYear(y)) {
-          d = 28;
-        }
-      }
-    }
     if (1582 == y && 10 == m) {
       if (d > 4 && d < 15) {
         d += 10;
       }
+    } else {
+      int maxDay = SolarUtil.getDaysOfMonth(y, m);
+      if (d > maxDay) {
+        d = maxDay;
+      }
     }
     return fromYmdHms(y, m, d, hour, minute, second);
   }

src/main/java/com/nlf/calendar/util/LunarUtil.java

@@ -159,7 +159,7 @@ public class LunarUtil{
       put("6-6",Collections.nCopies(1,"天贶节"));
       put("6-24",Collections.nCopies(1,"观莲节"));
       put("6-25",Collections.nCopies(1,"五谷母节"));
-      put("7-14",Collections.nCopies(1,"中元节"));
+      put("7-15",Collections.nCopies(1,"中元节"));
       put("7-22",Collections.nCopies(1,"财神节"));
       put("7-29",Collections.nCopies(1,"地藏节"));
       put("8-1",Collections.nCopies(1,"天灸日"));

src/test/java/test/SolarTest.java

@@ -171,4 +171,28 @@ public class SolarTest {
     Assert.assertEquals("1582-09-29", solar.next(-6).toYmd());
   }
 
+  @Test
+  public void test27(){
+    Solar solar = Solar.fromYmd(2023, 8, 31);
+    Assert.assertEquals("2023-09-30", solar.nextMonth(1).toYmd());
+  }
+
+  @Test
+  public void test28(){
+    Solar solar = Solar.fromYmd(2023, 8, 31);
+    Assert.assertEquals("2023-10-31", solar.nextMonth(2).toYmd());
+  }
+
+  @Test
+  public void test29(){
+    Solar solar = Solar.fromYmd(2023, 8, 31);
+    Assert.assertEquals("2025-08-31", solar.nextYear(2).toYmd());
+  }
+
+  @Test
+  public void test30(){
+    Solar solar = Solar.fromYmd(2023, 8, 31);
+    Assert.assertEquals("2024-02-29", solar.nextMonth(6).toYmd());
+  }
+
 }