From f553d6d2cbec44bf1709b6269eaa336270df31c3 Mon Sep 17 00:00:00 2001
From: Ron <56991633+ls586@users.noreply.github.com>
Date: Fri, 1 Oct 2021 01:06:18 +0800
Subject: [PATCH] =?UTF-8?q?=E4=BB=8ELocalDate=E4=B8=AD=E8=8E=B7=E5=8F=96We?=
 =?UTF-8?q?ek?=
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---
 .../hutool/core/date/LocalDateTimeUtil.java   | 11 +++++++++
 .../main/java/cn/hutool/core/date/Week.java   | 24 +++++++++++++++++++
 .../core/date/LocalDateTimeUtilTest.java      | 24 +++++++++++++++++++
 3 files changed, 59 insertions(+)

diff --git a/hutool-core/src/main/java/cn/hutool/core/date/LocalDateTimeUtil.java b/hutool-core/src/main/java/cn/hutool/core/date/LocalDateTimeUtil.java
index 9b77d6577..df88c5199 100644
--- a/hutool-core/src/main/java/cn/hutool/core/date/LocalDateTimeUtil.java
+++ b/hutool-core/src/main/java/cn/hutool/core/date/LocalDateTimeUtil.java
@@ -512,4 +512,15 @@ public class LocalDateTimeUtil {
 		final DayOfWeek dayOfWeek = localDate.getDayOfWeek();
 		return DayOfWeek.SATURDAY == dayOfWeek || DayOfWeek.SUNDAY == dayOfWeek;
 	}
+
+	/**
+	 * 获取{@link LocalDate}对应的星期值
+	 *
+	 * @param localDate 日期{@link LocalDate}
+	 * @return {@link Week}
+	 * @since 5.7.14
+	 */
+	public static Week dayOfWeek(LocalDate localDate) {
+		return Week.of(localDate.getDayOfWeek());
+	}
 }
diff --git a/hutool-core/src/main/java/cn/hutool/core/date/Week.java b/hutool-core/src/main/java/cn/hutool/core/date/Week.java
index aa905511f..6b7353534 100644
--- a/hutool-core/src/main/java/cn/hutool/core/date/Week.java
+++ b/hutool-core/src/main/java/cn/hutool/core/date/Week.java
@@ -1,5 +1,6 @@
 package cn.hutool.core.date;
 
+import java.time.DayOfWeek;
 import java.util.Calendar;
 
 /**
@@ -128,4 +129,27 @@ public enum Week {
 			return null;
 		}
 	}
+
+	/**
+	 * 将 {@link DayOfWeek}星期相关值转换为Week枚举对象<br>
+	 *
+	 * @see #SUNDAY
+	 * @see #MONDAY
+	 * @see #TUESDAY
+	 * @see #WEDNESDAY
+	 * @see #THURSDAY
+	 * @see #FRIDAY
+	 * @see #SATURDAY
+	 *
+	 * @param dayOfWeek DayOfWeek星期值
+	 * @return {@link Week}
+	 * @since 5.7.14
+	 */
+	public static Week of(DayOfWeek dayOfWeek) {
+		int week = dayOfWeek.ordinal() + 2;
+		if (week > 7) {
+			week = 1;
+		}
+		return of(week);
+	}
 }
diff --git a/hutool-core/src/test/java/cn/hutool/core/date/LocalDateTimeUtilTest.java b/hutool-core/src/test/java/cn/hutool/core/date/LocalDateTimeUtilTest.java
index 89f924dd3..8cd013d40 100644
--- a/hutool-core/src/test/java/cn/hutool/core/date/LocalDateTimeUtilTest.java
+++ b/hutool-core/src/test/java/cn/hutool/core/date/LocalDateTimeUtilTest.java
@@ -149,4 +149,28 @@ public class LocalDateTimeUtilTest {
 		final LocalDateTime endOfDay = LocalDateTimeUtil.endOfDay(localDateTime);
 		Assert.assertEquals("2020-01-23T23:59:59.999999999", endOfDay.toString());
 	}
+
+	@Test
+	public void dayOfWeekTest() {
+		final Week one = LocalDateTimeUtil.dayOfWeek(LocalDate.of(2021, 9, 20));
+		Assert.assertEquals(Week.MONDAY, one);
+
+		final Week two = LocalDateTimeUtil.dayOfWeek(LocalDate.of(2021, 9, 21));
+		Assert.assertEquals(Week.TUESDAY, two);
+
+		final Week three = LocalDateTimeUtil.dayOfWeek(LocalDate.of(2021, 9, 22));
+		Assert.assertEquals(Week.WEDNESDAY, three);
+
+		final Week four = LocalDateTimeUtil.dayOfWeek(LocalDate.of(2021, 9, 23));
+		Assert.assertEquals(Week.THURSDAY, four);
+
+		final Week five = LocalDateTimeUtil.dayOfWeek(LocalDate.of(2021, 9, 24));
+		Assert.assertEquals(Week.FRIDAY, five);
+
+		final Week six = LocalDateTimeUtil.dayOfWeek(LocalDate.of(2021, 9, 25));
+		Assert.assertEquals(Week.SATURDAY, six);
+
+		final Week seven = LocalDateTimeUtil.dayOfWeek(LocalDate.of(2021, 9, 26));
+		Assert.assertEquals(Week.SUNDAY, seven);
+	}
 }