From ca698f88c0632a85bca91c7ea12267c83889f673 Mon Sep 17 00:00:00 2001
From: chenjiahe <763432473@qq.com>
Date: 星期五, 16 十二月 2022 16:34:57 +0800
Subject: [PATCH] 新增时间算法

---
 src/main/java/com/hx/util/DateUtil.java |  216 +++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 files changed, 214 insertions(+), 2 deletions(-)

diff --git a/src/main/java/com/hx/util/DateUtil.java b/src/main/java/com/hx/util/DateUtil.java
index 683814c..3bf51a3 100644
--- a/src/main/java/com/hx/util/DateUtil.java
+++ b/src/main/java/com/hx/util/DateUtil.java
@@ -302,6 +302,18 @@
         }
     }
 
+    /**鏃堕棿涓婄鍙犲姞
+     * @Author: ChenJiaHe
+     * @param dateTime 鏃堕棿
+     * @param second 绉�
+     * @return
+     */
+    public static Date addSecond(Date dateTime,int second){
+        Calendar c = Calendar.getInstance();
+        c.setTime(dateTime);
+        c.add(Calendar.SECOND, second);
+        return c.getTime();
+    }
 
     /**鏃堕棿涓婂垎閽熷彔鍔�
      * @Author: ChenJiaHe
@@ -428,6 +440,18 @@
     }
 
     /**
+     * 鑾峰彇涓や釜鏃堕棿鐩稿樊鍒嗛挓鏁�
+     * @param startTime 寮�濮嬫椂闂�
+     * @param endTime 缁撴潫鏃堕棿
+     * @return 鍒嗛挓
+     */
+    public static long differMinute(Date startTime, Date endTime) {
+        long NTime = startTime.getTime();
+        long OTime = endTime.getTime();
+        return (NTime - OTime) / 1000 / 60;
+    }
+
+    /**
      * endTime姣攕tartTime澶氱殑澶╂暟
      * @param startTime 鏈�灏忔椂闂�
      * @param endTime 鏈�澶ф椂闂�
@@ -512,8 +536,196 @@
         }
 
         return 0;
-
-
     }
 
+    /**
+     * 鑾峰彇褰撳墠鏈堢殑寮�濮嬫椂闂�
+     * @param time 鏃堕棿
+     * @return 杩斿洖鏃堕棿 鏍煎紡yyyy-MM-dd 00:00:00
+     */
+    public static Date getMonthStart(Date time) {
+        Calendar calendar = Calendar.getInstance();
+        calendar.setTime(time);
+        calendar.set(Calendar.DAY_OF_MONTH, 1);
+        calendar.set(Calendar.HOUR_OF_DAY, 0);
+        calendar.set(Calendar.MINUTE, 0);
+        calendar.set(Calendar.SECOND, 0);
+        return calendar.getTime();
+    }
+
+    /**
+     * 鑾峰彇褰撳墠鏈堢殑寮�濮嬫椂闂�
+     *
+     * @param num 0鎷垮彇褰撴湀锛屾浠h〃鍚庯紝璐熶唬琛ㄥ墠锛屽�间负鍑犱釜锛堟湀锛�
+     * @return 杩斿洖鏃堕棿 鏍煎紡yyyy-MM-dd 00:00:00
+     */
+    public static String getMonthStart(Integer num) {
+        Calendar calendar = Calendar.getInstance();
+        calendar.add(Calendar.MONTH, num);
+        calendar.set(Calendar.DAY_OF_MONTH, 1);
+        calendar.set(Calendar.HOUR_OF_DAY, 0);
+        calendar.set(Calendar.MINUTE, 0);
+        calendar.set(Calendar.SECOND, 0);
+        SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss", Locale.CHINA);
+        return sdf.format(calendar.getTime());
+    }
+
+    /**
+     * 鑾峰彇褰撳墠鏈堢殑缁撴潫鏃堕棿
+     * @param date 鐐瑰墠鏃堕棿
+     * @return 杩斿洖鏃堕棿 鏍煎紡yyyy-MM-dd 23:59:59
+     */
+    public static Date getMonthEnd(Date date) {
+        Calendar calendar = Calendar.getInstance();
+        calendar.setTime(date);
+        calendar.set(Calendar.DAY_OF_MONTH, calendar.getActualMaximum(Calendar.DAY_OF_MONTH));
+        calendar.set(Calendar.HOUR_OF_DAY, 23);
+        calendar.set(Calendar.MINUTE, 59);
+        calendar.set(Calendar.SECOND, 59);
+        return calendar.getTime();
+    }
+
+    /**
+     * 鑾峰彇褰撳墠鏈堢殑缁撴潫鏃堕棿
+     * @param num 0鎷垮彇褰撴湀锛屾浠h〃鍚庯紝璐熶唬琛ㄥ墠锛屽�间负鍑犱釜锛堟湀锛�
+     * @return 杩斿洖鏃堕棿 鏍煎紡yyyy-MM-dd 23:59:59
+     */
+    public static String getMonthEnd(Integer num) {
+        Calendar calendar = Calendar.getInstance();
+        calendar.add(Calendar.MONTH, num);
+        calendar.set(Calendar.DAY_OF_MONTH, calendar.getActualMaximum(Calendar.DAY_OF_MONTH));
+        calendar.set(Calendar.HOUR_OF_DAY, 23);
+        calendar.set(Calendar.MINUTE, 59);
+        calendar.set(Calendar.SECOND, 59);
+        SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss", Locale.CHINA);
+        return sdf.format(calendar.getTime());
+    }
+
+    /**
+     * 鑾峰彇褰撳墠骞寸殑寮�濮嬫椂闂�
+     * @param time 鏃堕棿
+     * @return 杩斿洖鏃堕棿 鏍煎紡yyyy-MM-dd 00:00:00
+     */
+    public static Date getYearStart(Date time) {
+        Calendar calendar = Calendar.getInstance();
+        calendar.setTime(time);
+        calendar.set(Calendar.MONTH, 1);
+        calendar.set(Calendar.DAY_OF_MONTH, 1);
+        calendar.set(Calendar.HOUR_OF_DAY, 0);
+        calendar.set(Calendar.MINUTE, 0);
+        calendar.set(Calendar.SECOND, 0);
+        return calendar.getTime();
+    }
+
+    /**
+     * 鑾峰彇褰撳墠骞寸殑缁撴潫鏃堕棿
+     * @param time 鏃堕棿
+     * @return 杩斿洖鏃堕棿 鏍煎紡yyyy-MM-dd 00:00:00
+     */
+    public static Date getYearEnd(Date time) {
+        Calendar calendar = Calendar.getInstance();
+        calendar.setTime(time);
+        calendar.set(Calendar.MONTH, 12);
+        calendar.set(Calendar.DAY_OF_MONTH, calendar.getActualMaximum(Calendar.DATE));
+        calendar.set(Calendar.HOUR_OF_DAY, 23);
+        calendar.set(Calendar.MINUTE, 59);
+        calendar.set(Calendar.SECOND, 59);
+        return calendar.getTime();
+    }
+
+
+    /**杩欏ぉ鐨勫紑濮嬫椂闂�
+     * 鏃ユ湡2000-01-01鍙�2000-01-01 00:00:00
+     */
+    public static String dayToStart(Date date) {
+        Calendar calendar = Calendar.getInstance();
+        calendar.setTime(date);
+        calendar.set(Calendar.HOUR, 0);
+        calendar.set(Calendar.MINUTE, 0);
+        calendar.set(Calendar.SECOND, 0);
+        SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss", Locale.CHINA);
+        return sdf.format(calendar.getTime());
+    }
+
+    /**杩欏ぉ鐨勬渶鍚庢椂闂�
+     * 鏃ユ湡2000-01-01鍙�2000-01-01 23:59:59
+     */
+    public static String dayToEnd(Date date) {
+        Calendar calendar = Calendar.getInstance();
+        calendar.setTime(date);
+        calendar.set(Calendar.HOUR, 23);
+        calendar.set(Calendar.MINUTE, 59);
+        calendar.set(Calendar.SECOND, 59);
+        SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss", Locale.CHINA);
+        return sdf.format(calendar.getTime());
+    }
+
+    /**杩欏ぉ鐨勬渶鍚庢椂闂�
+     * 鏃ユ湡2000-01-01鍙�2000-01-01 23:59:59
+     */
+    public static Date dayToEndDate(Date date) {
+        Calendar calendar = Calendar.getInstance();
+        calendar.setTime(date);
+        calendar.set(Calendar.HOUR, 23);
+        calendar.set(Calendar.MINUTE, 59);
+        calendar.set(Calendar.SECOND, 59);
+        return calendar.getTime();
+    }
+
+    /**鑾峰彇鏈堜唤鐨勫ぉ鏁�
+     * @param date 鏃堕棿
+     * @return 鏈堜唤鐨勫ぉ鏁�
+     */
+    public static int getMonthDays(Date date) {
+        Calendar cal = Calendar.getInstance();
+        cal.setTime(date);
+        cal.set(Calendar.DATE, 1);
+        cal.roll(Calendar.DATE, -1);
+        return cal.getActualMaximum(Calendar.DATE);
+    }
+    /**鑾峰彇鏈堜唤鐨勫ぉ鏁�
+     * @param year 骞翠唤
+     * @param month 鏈堜唤
+     * @return 鏈堜唤鐨勫ぉ鏁�
+     */
+    public static int getMonthDays(int year, int month) {
+        Calendar cal = Calendar.getInstance();
+        cal.set(Calendar.YEAR, year);
+        cal.set(Calendar.MONTH, (month - 1));
+        cal.set(Calendar.DATE, 1);
+        cal.roll(Calendar.DATE, -1);
+        return cal.getActualMaximum(Calendar.DATE);
+    }
+
+    /**鑾峰彇鏈堜唤鐨勫ぉ鏁�
+     * @param yearMonth 骞存湀
+     * @param format 鏃堕棿鏍煎紡
+     * @return
+     */
+    public static int getMonthDays(String yearMonth,String format) {
+        SimpleDateFormat sdf = new SimpleDateFormat(format);
+        Calendar calendar = Calendar.getInstance();
+        try {
+            calendar.setTime(sdf.parse(yearMonth));
+        } catch (ParseException e) {
+            e.printStackTrace();
+        }
+        calendar.getActualMaximum(Calendar.DAY_OF_MONTH);
+        return calendar.getActualMaximum(Calendar.DAY_OF_MONTH);
+    }
+
+    /**褰撳ぉ澶氬皯鐐瑰墠
+     * @param date 鏃堕棿
+     * @param num 澶氬皯鐐瑰墠锛屼笉鍚綋鐐瑰墠锛�24灏忔椂鍒�
+     * @return 鏈堜唤鐨勫ぉ鏁�
+     */
+    public static boolean getFrontMinute(Date date,int num) {
+        Calendar cal = Calendar.getInstance();
+        cal.setTime(date);
+        cal.set(Calendar.HOUR, num-1);
+        cal.set(Calendar.MINUTE, 59);
+        cal.set(Calendar.SECOND, 59);
+
+        return date.compareTo(cal.getTime()) < 1;
+    }
 }

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