From ba61c9e2a9ef605c88bbebbdebd21831fa438b68 Mon Sep 17 00:00:00 2001
From: fwq <582742538@qq.com>
Date: 星期三, 17 八月 2022 15:05:20 +0800
Subject: [PATCH] 获取特定格式时间

---
 src/main/java/com/hx/util/DateUtil.java |   61 ++++++++++++++++++++++++++++++
 1 files changed, 61 insertions(+), 0 deletions(-)

diff --git a/src/main/java/com/hx/util/DateUtil.java b/src/main/java/com/hx/util/DateUtil.java
index 9b18d81..07f240a 100644
--- a/src/main/java/com/hx/util/DateUtil.java
+++ b/src/main/java/com/hx/util/DateUtil.java
@@ -528,4 +528,65 @@
 
     }
 
+    /**
+     * 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 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());
+    }
+
+
+    /**
+     * 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());
+    }
+
+    /**
+     * 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());
+    }
+
 }

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