From f1dde7ac762b0723ce97b8e6b75b40a3b24223ff Mon Sep 17 00:00:00 2001
From: admin <weikou2014>
Date: 星期四, 03 一月 2019 15:07:18 +0800
Subject: [PATCH] Merge remote-tracking branch 'origin/master'

---
 utils/src/main/java/org/yeshi/utils/DateUtil.java |   23 ++++++++++++++++++++++-
 1 files changed, 22 insertions(+), 1 deletions(-)

diff --git a/utils/src/main/java/org/yeshi/utils/DateUtil.java b/utils/src/main/java/org/yeshi/utils/DateUtil.java
index 10e3174..65596e2 100644
--- a/utils/src/main/java/org/yeshi/utils/DateUtil.java
+++ b/utils/src/main/java/org/yeshi/utils/DateUtil.java
@@ -97,7 +97,7 @@
 	 * 鎸囧畾鏃ユ湡鍔犱笂澶╂暟鍚庣殑鏃ユ湡
 	 * 
 	 * @param num
-	 *            涓哄鍔犵殑澶╂暟
+	 *            澧炲姞鐨勫ぉ鏁�
 	 * @param nowDate
 	 *            鍒涘缓鏃堕棿
 	 * @return
@@ -113,4 +113,25 @@
 		
 		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 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());
+	}
 }
\ No newline at end of file

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