Index: forgon-tools/src/test/java/com/forgon/tools/util/ForgonDateUtilsGetDayOfWeekTest.java
===================================================================
diff -u
--- forgon-tools/src/test/java/com/forgon/tools/util/ForgonDateUtilsGetDayOfWeekTest.java	(revision 0)
+++ forgon-tools/src/test/java/com/forgon/tools/util/ForgonDateUtilsGetDayOfWeekTest.java	(revision 41360)
@@ -0,0 +1,61 @@
+package com.forgon.tools.util;
+
+import org.junit.Test;
+
+import java.text.ParseException;
+import java.text.SimpleDateFormat;
+import java.util.Calendar;
+import java.util.Date;
+
+import static org.junit.jupiter.api.Assertions.assertEquals;
+import static org.junit.jupiter.api.Assertions.assertThrows;
+
+/**
+ * ForgonDateUtils.getDayOfWeek() 的单元测试类
+ */
+public class ForgonDateUtilsGetDayOfWeekTest {
+
+    private final SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd");
+
+    /**
+     * 测试正常日期输入，验证返回正确的星期几
+     */
+    @Test
+    public void testGetDayOfWeek_NormalDate() throws ParseException {
+        // 测试正常日期输入
+        // 给定一个已知是周一的日期
+        Date date = sdf.parse("2024-01-01");
+        int dayOfWeek = ForgonDateUtils.getDayOfWeek(date);
+        assertEquals(Calendar.MONDAY, dayOfWeek, "2024-01-01 应该是周一");
+    }
+
+    /**
+     * 测试周日的情况
+     */
+    @Test
+    public void testGetDayOfWeek_Sunday() throws ParseException {
+        Date date = sdf.parse("2024-01-07");
+        int dayOfWeek = ForgonDateUtils.getDayOfWeek(date);
+        assertEquals(Calendar.SUNDAY, dayOfWeek, "2024-01-07 应该是周日");
+    }
+
+    /**
+     * 测试跨年日期
+     */
+    @Test
+    public void testGetDayOfWeek_YearEnd() throws ParseException {
+        Date date = sdf.parse("2023-12-31");
+        int dayOfWeek = ForgonDateUtils.getDayOfWeek(date);
+        assertEquals(Calendar.SUNDAY, dayOfWeek, "2023-12-31 应该是周日");
+    }
+
+    /**
+     * 测试 null 输入，应抛出 NullPointerException
+     */
+    @Test
+    public void testGetDayOfWeek_NullInput() {
+        assertThrows(NullPointerException.class, () -> {
+            ForgonDateUtils.getDayOfWeek(null);
+        }, "传入 null 应抛出 NullPointerException");
+    }
+}
Index: forgon-tools/src/main/java/com/forgon/tools/util/ForgonDateUtils.java
===================================================================
diff -u -r41191 -r41360
--- forgon-tools/src/main/java/com/forgon/tools/util/ForgonDateUtils.java	(.../ForgonDateUtils.java)	(revision 41191)
+++ forgon-tools/src/main/java/com/forgon/tools/util/ForgonDateUtils.java	(.../ForgonDateUtils.java)	(revision 41360)
@@ -304,4 +304,23 @@
         }
         return months;
     }
+
+	/**
+	 * 获取指定日期是星期几
+	 * @param date 日期对象
+	 * @return 1-7，分别表示周日到周六
+	 */
+	public static int getDayOfWeek(Date date) {
+		Calendar calendar = Calendar.getInstance();
+		calendar.setTime(date);
+		return calendar.get(Calendar.DAY_OF_WEEK);
+	}
+
+	/**
+	 * 获取今天是星期几
+	 * @return 1-7，分别表示周日到周六
+	 */
+	public static int getDayWeekOfToday() {
+		return getDayOfWeek(new Date());
+	}
 }