From e0cfe53794b2c90d9f42e5ec821dd5775758d737 Mon Sep 17 00:00:00 2001
From: liujie <liujie>
Date: 星期一, 09 十月 2023 12:00:53 +0800
Subject: [PATCH] update
---
cloud-server-course/src/main/java/com/dsh/course/util/DateTimeHelper.java | 57 +++++++++++++++++++++++++++++++++++++++++++++++----------
1 files changed, 47 insertions(+), 10 deletions(-)
diff --git a/cloud-server-course/src/main/java/com/dsh/course/util/DateTimeHelper.java b/cloud-server-course/src/main/java/com/dsh/course/util/DateTimeHelper.java
index ea6f35b..a06b0d6 100644
--- a/cloud-server-course/src/main/java/com/dsh/course/util/DateTimeHelper.java
+++ b/cloud-server-course/src/main/java/com/dsh/course/util/DateTimeHelper.java
@@ -2,9 +2,8 @@
import java.text.ParseException;
import java.text.SimpleDateFormat;
-import java.time.Instant;
-import java.time.LocalDateTime;
-import java.time.ZoneId;
+import java.time.*;
+import java.time.temporal.TemporalAdjusters;
import java.util.*;
@@ -1439,6 +1438,24 @@
return weekDays[w];
}
+
+ /**
+ * 获取当前日期是星期几<br>
+ * Obtain the day of the week for the current date.
+ * @param dt
+ * @return 当前日期是星期几
+ */
+ public static int getWeekNumOfDate(Date dt) {
+ Integer[] weekDays = {7, 1, 2, 3, 4, 5, 6}; // 将周一的数值设为2，依次递增表示周二到周日
+ Calendar cal = Calendar.getInstance();
+ cal.setTime(dt);
+ int w = cal.get(Calendar.DAY_OF_WEEK) - 1;
+ if (w < 0) {
+ w = 6; // 如果为负数，将其设为6，表示周日
+ }
+ return weekDays[w];
+ }
+
/**
* 获取今天时间 2017-11-20 00:00:00
*/
@@ -1757,13 +1774,33 @@
return list;
}
- /*public static void main(String[] args) throws ParseException {
- List<Date> allTheDateOftheMonth = getAllTheDateOftheMonth(new Date());
- Date date = allTheDateOftheMonth.get(11);
- System.out.println(date.toLocaleString());
- int i = daysBetween(new Date(), date);
- System.out.println(i);
- }*/
+ public static Date getTodayTime(){
+ // 获取当天的开始时间（0点）
+ LocalDate today = LocalDate.now();
+ LocalDateTime startOfDay = LocalDateTime.of(today, LocalTime.MIN);
+ return Date.from(startOfDay.atZone(ZoneId.systemDefault()).toInstant());
+ }
+
+ public static Date getWeekOfLastDay(){
+ // 获取本周的最后一天的时间（23点59分59秒）
+ LocalDate today = LocalDate.now();
+ LocalDate lastDayOfWeek = today.with(TemporalAdjusters.nextOrSame(DayOfWeek.SUNDAY));
+ LocalDateTime endOfDay = LocalDateTime.of(lastDayOfWeek, LocalTime.MAX);
+ return Date.from(endOfDay.atZone(ZoneId.systemDefault()).toInstant());
+ }
+
+ /**
+ * 获取有效期数的结束时间
+ * @param startTime 开始时间
+ * @param validPeriod 有效期数
+ * @return 结束时间
+ */
+ public static Date getExpirationDate(Date startTime, int validPeriod){
+ Calendar calendar = Calendar.getInstance();
+ calendar.setTime(startTime);
+ calendar.add(Calendar.DAY_OF_MONTH, validPeriod);
+ return calendar.getTime();
+ }
}
--
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