From e030255c23c7ba3e2cbad1036a810d6d72fa864f Mon Sep 17 00:00:00 2001
From: liujie <liujie>
Date: 星期四, 26 十月 2023 18:04:58 +0800
Subject: [PATCH] 修改bug

---
 cloud-server-course/src/main/java/com/dsh/course/util/LocalDateTimeUtils.java |   36 ++++++++++++++++++++++++++++++++++++
 1 files changed, 36 insertions(+), 0 deletions(-)

diff --git a/cloud-server-course/src/main/java/com/dsh/course/util/LocalDateTimeUtils.java b/cloud-server-course/src/main/java/com/dsh/course/util/LocalDateTimeUtils.java
index d3492ba..b706602 100644
--- a/cloud-server-course/src/main/java/com/dsh/course/util/LocalDateTimeUtils.java
+++ b/cloud-server-course/src/main/java/com/dsh/course/util/LocalDateTimeUtils.java
@@ -1,9 +1,12 @@
 package com.dsh.course.util;
 
 import java.text.ParseException;
+import java.time.DayOfWeek;
 import java.time.Duration;
 import java.time.LocalDate;
 import java.time.LocalDateTime;
+import java.util.Calendar;
+import java.util.Date;
 
 /**
  * LocalDateTimeUtils
@@ -77,4 +80,37 @@
         Integer day=date.getDayOfMonth();
         return day < dayArr[month - 1] ? constellationArr[month - 1] : constellationArr[month];
     }
+
+    /**
+     * 获取当天的星期几
+     * @return
+     */
+    public static int getWeekStr(){
+        LocalDate today = LocalDate.now();
+        DayOfWeek dayOfWeek = today.getDayOfWeek();
+        return dayOfWeek.getValue();
+    }
+
+    /**
+     * 根据输入本周的周几,获取当天的时间
+     * @param dayOfWeekInput 周几
+     * @return
+     */
+    public static Date getDateOfWeekNum(int dayOfWeekInput){
+        // 获取当前日期
+        Calendar calendar = Calendar.getInstance();
+        calendar.setTime(new Date());
+
+        // 设置为本周的第一天(星期一)
+        calendar.set(Calendar.DAY_OF_WEEK, Calendar.MONDAY);
+
+        // 根据输入的星期几数值,计算出相应的偏移量
+        int dayOfWeekIndex = (dayOfWeekInput + 6) % 7;
+        calendar.add(Calendar.DAY_OF_WEEK, dayOfWeekIndex);
+
+        // 获取计算后的日期
+        return calendar.getTime();
+    }
+
+
 }

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