判断目标时间是否在优惠时间段内

jsowell-common/src/main/java/com/jsowell/common/util/DateUtils.java

@@ -866,6 +866,13 @@ public class DateUtils extends org.apache.commons.lang3.time.DateUtils {
         }
     }
 
+    public static void main(String[] args) {
+        System.out.println(isInDiscountPeriod("20:00", "08:00", "00:35:58")); // true
+        System.out.println(isInDiscountPeriod("00:00", "00:00", "19:59:59")); // true
+        System.out.println(isInDiscountPeriod("20:00", "20:00", "08:00:00")); // true
+        System.out.println(isInDiscountPeriod("20:00", "08:00", "08:00:00")); // false
+    }
+
     /**
      * 当前时间是否在时间指定范围内<br>
      *
@@ -1157,6 +1164,10 @@ public class DateUtils extends org.apache.commons.lang3.time.DateUtils {
      * @return 是否在优惠时段
      */
     public static boolean isInDiscountPeriod(LocalTime start, LocalTime end, LocalTime target) {
+        // 任意参数为空返回false
+        if (start == null || end == null || target == null) {
+            return false;
+        }
         // 开始时间等于结束时间即判定为全天
         if (start.equals(end)) {
             return true;