From 8444084e6aa11efa23287e7f82474ac22378a5c4 Mon Sep 17 00:00:00 2001
From: Pu Zhibing <393733352@qq.com>
Date: 星期二, 01 四月 2025 16:03:19 +0800
Subject: [PATCH] Merge remote-tracking branch 'origin/master'

---
 ruoyi-common/ruoyi-common-core/src/main/java/com/ruoyi/common/core/utils/DateUtils.java |   67 +++++++++++++++++++++++++++++----
 1 files changed, 58 insertions(+), 9 deletions(-)

diff --git a/ruoyi-common/ruoyi-common-core/src/main/java/com/ruoyi/common/core/utils/DateUtils.java b/ruoyi-common/ruoyi-common-core/src/main/java/com/ruoyi/common/core/utils/DateUtils.java
index b4eacc3..71ea2c8 100644
--- a/ruoyi-common/ruoyi-common-core/src/main/java/com/ruoyi/common/core/utils/DateUtils.java
+++ b/ruoyi-common/ruoyi-common-core/src/main/java/com/ruoyi/common/core/utils/DateUtils.java
@@ -1,15 +1,13 @@
 package com.ruoyi.common.core.utils;
 
+import org.apache.commons.lang3.time.DateFormatUtils;
+
 import java.lang.management.ManagementFactory;
 import java.text.ParseException;
 import java.text.SimpleDateFormat;
-import java.time.LocalDate;
-import java.time.LocalDateTime;
-import java.time.LocalTime;
-import java.time.ZoneId;
-import java.time.ZonedDateTime;
+import java.time.*;
+import java.util.Calendar;
 import java.util.Date;
-import org.apache.commons.lang3.time.DateFormatUtils;
 
 /**
  * 时间工具类
@@ -33,8 +31,12 @@
             "yyyy/MM/dd", "yyyy/MM/dd HH:mm:ss", "yyyy/MM/dd HH:mm", "yyyy/MM",
             "yyyy.MM.dd", "yyyy.MM.dd HH:mm:ss", "yyyy.MM.dd HH:mm", "yyyy.MM"};
 
-    public static void main(String[] args) {
-        System.out.println(getNowDate());
+    public static void main(String[] args) throws ParseException {
+        SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
+        Date start = sdf.parse("2021-10-01 10:00:00");
+        Date end = sdf.parse("2021-10-01 12:30:00");
+        String time = formatDuration(start,end);
+        System.out.println(time);
     }
 
     /**
@@ -74,7 +76,7 @@
 
     public static final String dateTime(final Date date)
     {
-        return parseDateToStr(YYYY_MM_DD, date);
+        return parseDateToStr(YYYY_MM_DD_HH_MM_SS, date);
     }
 
     public static final String parseDateToStr(final String format, final Date date)
@@ -166,6 +168,20 @@
         return day + "天" + hour + "小时" + min + "分钟";
     }
 
+    public static long diffTime(Date startTime, Date endTime){
+        // 获取Calendar实例
+        Calendar cal1 = Calendar.getInstance();
+        Calendar cal2 = Calendar.getInstance();
+        // 设置Calendar对象的时间
+        cal1.setTime(startTime);
+        cal2.setTime(endTime);
+        // 获取时间差
+        long milliseconds1 = cal1.getTimeInMillis();
+        long milliseconds2 = cal2.getTimeInMillis();
+        long diff = milliseconds2 - milliseconds1;
+        return diff;
+    }
+
     /**
      * 增加 LocalDateTime ==> Date
      */
@@ -184,4 +200,37 @@
         ZonedDateTime zdt = localDateTime.atZone(ZoneId.systemDefault());
         return Date.from(zdt.toInstant());
     }
+
+    public static String formatDuration(Date start, Date end) {
+        long duration = end.getTime() - start.getTime();
+        long days = duration / (24 * 60 * 60 * 1000);
+        long hours = (duration % (24 * 60 * 60 * 1000)) / (60 * 60 * 1000);
+        long minutes = (duration % (60 * 60 * 1000)) / (60 * 1000);
+        long seconds = (duration % (60 * 1000)) / 1000;
+        StringBuilder sb = new StringBuilder();
+        if (days > 0) {
+            sb.append(days).append("天");
+        }
+        if (hours > 0) {
+            sb.append(hours).append("小时");
+        }
+        if (minutes > 0) {
+            sb.append(minutes).append("分");
+        }
+        if (seconds > 0) {
+            sb.append(seconds).append("秒");
+        }
+        return sb.toString();
+    }
+
+    public static Date getTodayStartTime() {
+        // 获取今天的日期
+        LocalDate today = LocalDate.now();
+
+        // 获取当天的开始时间(00:00:00)
+        LocalDateTime startOfDay = today.atStartOfDay();
+
+        // 转换为 Date 类型
+        return Date.from(startOfDay.atZone(ZoneId.systemDefault()).toInstant());
+    }
 }

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