From 98b1a0affd69bbe63223c21fdd2c404e8bedfccb Mon Sep 17 00:00:00 2001
From: admin <weikou2014>
Date: 星期三, 20 五月 2020 17:25:08 +0800
Subject: [PATCH] Merge remote-tracking branch 'origin/div' into 2.1.2

---
 utils/src/main/java/org/yeshi/utils/DateUtil.java |  233 +++++++++++++++++++++++++++++++++++++++++++++++++++++-----
 1 files changed, 213 insertions(+), 20 deletions(-)

diff --git a/utils/src/main/java/org/yeshi/utils/DateUtil.java b/utils/src/main/java/org/yeshi/utils/DateUtil.java
index 82ef3d4..915a83b 100644
--- a/utils/src/main/java/org/yeshi/utils/DateUtil.java
+++ b/utils/src/main/java/org/yeshi/utils/DateUtil.java
@@ -86,6 +86,72 @@
 		return dateInfo;
 	}
 
+	public static String dateDiff4(Date startTime, Date endTime) throws Exception {
+
+		String datatime = "0鍒�";
+
+		long nm = 1000 * 60;// 涓�鍒嗛挓鐨勬绉掓暟
+		long nh = 1000 * 60 * 60;// 涓�灏忔椂鐨勬绉掓暟
+		long nd = 1000 * 24 * 60 * 60;// 涓�澶╃殑姣鏁�
+
+		// 鑾峰緱涓や釜鏃堕棿鐨勬绉掓椂闂村樊寮�
+		long diff = endTime.getTime() - startTime.getTime();
+		long day = diff / nd;// 璁$畻宸灏戝ぉ
+		long hour = diff % nd / nh;// 璁$畻宸灏戝皬鏃�
+		long min = diff % nd % nh / nm;// 璁$畻宸灏戝垎閽�
+
+		if (day > 0) {
+			datatime = day + "澶�";
+		} else {
+			if (hour > 0) {
+				datatime = hour + "鏃�";
+			} else {
+				if (min < 0)
+					min = 0;
+				datatime = min + "鍒�";
+			}
+		}
+		return datatime;
+	}
+
+	public static String dateDiff5(Date startTime, Date endTime) throws Exception {
+		long nm = 1000 * 60;// 涓�鍒嗛挓鐨勬绉掓暟
+		long nh = 1000 * 60 * 60;// 涓�灏忔椂鐨勬绉掓暟
+		long nd = 1000 * 24 * 60 * 60;// 涓�澶╃殑姣鏁�
+
+		// 鑾峰緱涓や釜鏃堕棿鐨勬绉掓椂闂村樊寮�
+		long diff = endTime.getTime() - startTime.getTime();
+		long day = diff / nd;// 璁$畻宸灏戝ぉ
+		long hour = diff % nd / nh;// 璁$畻宸灏戝皬鏃�
+		long min = diff % nd % nh / nm;// 璁$畻宸灏戝垎閽�
+		long second = (diff / 1000 - day * 24 * 60 * 60 - hour * 60 * 60 - min * 60); // 璁$畻宸灏戠
+
+		String datatime = "";
+		if (day > 0) {
+			datatime = day + "澶�";
+		} else if (hour > 0) {
+			datatime = hour + "灏忔椂";
+		} else if (min > 0) {
+			datatime = min + "鍒嗛挓";
+		} else if (second > 0) {
+			datatime = second + "绉�";
+		}
+		return datatime;
+	}
+
+	public static long dateDiffMin(Date startTime, Date endTime) throws Exception {
+		long nm = 1000 * 60;// 涓�鍒嗛挓鐨勬绉掓暟
+		long nh = 1000 * 60 * 60;// 涓�灏忔椂鐨勬绉掓暟
+		long nd = 1000 * 24 * 60 * 60;// 涓�澶╃殑姣鏁�
+
+		// 鑾峰緱涓や釜鏃堕棿鐨勬绉掓椂闂村樊寮�
+		long diff = endTime.getTime() - startTime.getTime();
+		long day = diff / nd;// 璁$畻宸灏戝ぉ
+		long hour = diff % nd / nh;// 璁$畻宸灏戝皬鏃�
+		long min = diff % nd % nh / nm + day * 24 * 60 + hour * 60;// 璁$畻宸灏戝垎閽�
+		return min;
+	}
+
 	/**
 	 * 閫氳繃鏃堕棿绉掓绉掓暟鍒ゆ柇涓や釜鏃堕棿鐨勯棿闅�
 	 * 
@@ -186,6 +252,23 @@
 	 * @return
 	 * @throws ParseException
 	 */
+	public static Date plusDayReturnDate(int num, String nowDate) throws ParseException {
+		SimpleDateFormat format = new SimpleDateFormat("yyyy-MM-dd");
+		Date currdate = format.parse(nowDate);
+		Calendar ca = Calendar.getInstance();
+		ca.setTime(currdate);
+		ca.add(Calendar.DATE, num);
+		return ca.getTime();
+	}
+
+	/**
+	 * 鎸囧畾鏃ユ湡鍔犱笂澶╂暟鍚庣殑鏃ユ湡
+	 * 
+	 * @param num     澧炲姞鐨勫ぉ鏁�
+	 * @param nowDate 鍒涘缓鏃堕棿
+	 * @return
+	 * @throws ParseException
+	 */
 	public static String plusDay(int num, Date currdate) throws ParseException {
 		SimpleDateFormat format = new SimpleDateFormat("yyyy-MM-dd");
 
@@ -210,9 +293,10 @@
 		ca.add(Calendar.DATE, num);
 		return ca.getTime();
 	}
-	
+
 	/**
 	 * 鍔犱笂鏈堜唤
+	 * 
 	 * @param currdate
 	 * @param num
 	 * @return
@@ -223,9 +307,10 @@
 		ca.add(Calendar.MONTH, num);
 		return ca.getTime();
 	}
-	
+
 	/**
 	 * 鍔犱笂骞翠唤
+	 * 
 	 * @param currdate
 	 * @param num
 	 * @return
@@ -237,6 +322,26 @@
 		return ca.getTime();
 	}
 
+	/**
+	 * 鍑忓幓鏈堜唤
+	 * 
+	 * @param currdate
+	 * @param num
+	 * @return
+	 */
+	public static Date reduceMonth(Date currdate, int num) {
+		Calendar ca = Calendar.getInstance();
+		ca.setTime(currdate);
+		ca.add(Calendar.MONTH, -num);
+		return ca.getTime();
+	}
+	
+	public static Date reduceDay(Date currdate, int num) {
+		Calendar ca = Calendar.getInstance();
+		ca.setTime(currdate);
+		ca.add(Calendar.DATE, -num);
+		return ca.getTime();
+	}
 	
 	/**
 	 * 鎸囧畾鏃ユ湡鍑忓幓澶╂暟鍚庣殑鏃ユ湡
@@ -249,6 +354,28 @@
 	public static String reduceDay(int num, String nowDate) throws ParseException {
 		SimpleDateFormat format = new SimpleDateFormat("yyyy-MM-dd");
 		Date currdate = format.parse(nowDate);
+
+		Calendar ca = Calendar.getInstance();
+		ca.setTime(currdate);
+		ca.add(Calendar.DATE, -num); // 鏃ユ湡鍑� 濡傛灉涓嶅鍑忎細灏嗘湀鍙樺姩
+
+		return format.format(ca.getTime());
+	}
+
+	/**
+	 * 鎸囧畾鏃ユ湡鍑忓幓澶╂暟鍚庣殑鏃ユ湡
+	 * 
+	 * @param num     鍑忓幓鐨勫ぉ鏁�
+	 * @param nowDate 鍒涘缓鏃堕棿
+	 * @return
+	 * @throws ParseException
+	 */
+	public static String reduceDay2(int num, Date date) throws ParseException {
+		// 璁剧疆瑕佽幏鍙栧埌浠�涔堟牱鐨勬椂闂�
+		SimpleDateFormat format = new SimpleDateFormat("yyyy-MM-dd");
+		// 鑾峰彇String绫诲瀷鐨勬椂闂�
+		String date_str = format.format(date);
+		Date currdate = format.parse(date_str);
 
 		Calendar ca = Calendar.getInstance();
 		ca.setTime(currdate);
@@ -396,20 +523,20 @@
 	 * 璁$畻涓ゆ椂闂存湀宸�
 	 * 
 	 * @param startDate <String>
-	 * @param endDate <String>
+	 * @param endDate   <String>
 	 * @return int
 	 * @throws ParseException
 	 */
 	public static int getMonthSpace(String startDate, String endDate) throws ParseException {
-        SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM");
-        return getMonthSpace(sdf.parse(startDate), sdf.parse(endDate));
+		SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM");
+		return getMonthSpace(sdf.parse(startDate), sdf.parse(endDate));
 	}
 
 	/**
 	 * 璁$畻涓ゆ椂闂存湀宸�
 	 * 
 	 * @param startDate <String>
-	 * @param endDate <String>
+	 * @param endDate   <String>
 	 * @return int
 	 * @throws ParseException
 	 */
@@ -419,32 +546,98 @@
 		start.setTime(startDate);
 		end.setTime(endDate);
 		int result = end.get(Calendar.MONTH) - start.get(Calendar.MONTH);
-        int month = (end.get(Calendar.YEAR) - start.get(Calendar.YEAR)) * 12;
+		int month = (end.get(Calendar.YEAR) - start.get(Calendar.YEAR)) * 12;
 		return Math.abs(month + result);
 	}
-	
 
 	public static Date getTodayStartTime() {
 		Calendar todayStart = Calendar.getInstance();
-		todayStart.set(Calendar.HOUR_OF_DAY,0);
-		todayStart.set(Calendar.MINUTE,0);
-		todayStart.set(Calendar.SECOND,0);
-		todayStart.set(Calendar.MILLISECOND,0);
+		todayStart.set(Calendar.HOUR_OF_DAY, 0);
+		todayStart.set(Calendar.MINUTE, 0);
+		todayStart.set(Calendar.SECOND, 0);
+		todayStart.set(Calendar.MILLISECOND, 0);
 		return todayStart.getTime();
 	}
-	 
+
 	public static Date getTodayEndTime() {
 		Calendar todayEnd = Calendar.getInstance();
-		todayEnd.set(Calendar.HOUR_OF_DAY,23);
-		todayEnd.set(Calendar.MINUTE,59);
-		todayEnd.set(Calendar.SECOND,59);
-		todayEnd.set(Calendar.MILLISECOND,999);
+		todayEnd.set(Calendar.HOUR_OF_DAY, 23);
+		todayEnd.set(Calendar.MINUTE, 59);
+		todayEnd.set(Calendar.SECOND, 59);
+		todayEnd.set(Calendar.MILLISECOND, 999);
 		return todayEnd.getTime();
 	}
-	
+
+	/**
+	 * 鑾峰彇鎸囧畾骞存湀鐨勭涓�澶�
+	 * 
+	 * @param yearMonth
+	 * @return
+	 */
+	public static String getFirstDayOfMonth(String yearMonth) {
+		int year = Integer.parseInt(yearMonth.split("-")[0]); // 骞�
+		int month = Integer.parseInt(yearMonth.split("-")[1]); // 鏈�
+		return getFirstDayOfMonth(year, month);
+	}
+
+	/**
+	 * 鑾峰彇鎸囧畾骞存湀鐨勭涓�澶�
+	 * 
+	 * @param year
+	 * @param month
+	 * @return
+	 */
+	public static String getFirstDayOfMonth(int year, int month) {
+		Calendar cal = Calendar.getInstance();
+		// 璁剧疆骞翠唤
+		cal.set(Calendar.YEAR, year);
+		// 璁剧疆鏈堜唤
+		cal.set(Calendar.MONTH, month - 1);
+		// 鑾峰彇鏌愭湀鏈�灏忓ぉ鏁�
+		int firstDay = cal.getMinimum(Calendar.DATE);
+		// 璁剧疆鏃ュ巻涓湀浠界殑鏈�灏忓ぉ鏁�
+		cal.set(Calendar.DAY_OF_MONTH, firstDay);
+		// 鏍煎紡鍖栨棩鏈�
+		SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd");
+		return sdf.format(cal.getTime());
+	}
+
+	/**
+	 * 鑾峰彇鎸囧畾骞存湀鐨勬渶鍚庝竴澶�
+	 * 
+	 * @param yearMonth
+	 * @return
+	 */
+	public static String getLastDayOfMonth(String yearMonth) {
+		int year = Integer.parseInt(yearMonth.split("-")[0]); // 骞�
+		int month = Integer.parseInt(yearMonth.split("-")[1]); // 鏈�
+		return getLastDayOfMonth(year, month);
+	}
+
+	/**
+	 * 鑾峰彇鎸囧畾骞存湀鐨勬渶鍚庝竴澶�
+	 * 
+	 * @param year
+	 * @param month
+	 * @return
+	 */
+	public static String getLastDayOfMonth(int year, int month) {
+		Calendar cal = Calendar.getInstance();
+		// 璁剧疆骞翠唤
+		cal.set(Calendar.YEAR, year);
+		// 璁剧疆鏈堜唤
+		cal.set(Calendar.MONTH, month - 1);
+		// 鑾峰彇鏌愭湀鏈�澶уぉ鏁�
+		int lastDay = cal.getActualMaximum(Calendar.DATE);
+		// 璁剧疆鏃ュ巻涓湀浠界殑鏈�澶уぉ鏁�
+		cal.set(Calendar.DAY_OF_MONTH, lastDay);
+		// 鏍煎紡鍖栨棩鏈�
+		SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd");
+		return sdf.format(cal.getTime());
+	}
 
 	public static void main(String[] args) throws ParseException {
-        System.out.println(getMonthSpace("2012-02", "2012-02"));   
-    }
+		System.out.println(getMonthSpace("2012-02", "2012-02"));
+	}
 
 }
\ No newline at end of file

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