From 2e1c154f1332681fb8da61cb3012381a236e816a Mon Sep 17 00:00:00 2001
From: chenjiahe <763432473@qq.com>
Date: 星期四, 15 十二月 2022 16:55:59 +0800
Subject: [PATCH] 新增时间算法
---
src/main/java/com/hx/util/DateUtil.java | 72 +++++++++++++++++++++++++++++++++++
1 files changed, 71 insertions(+), 1 deletions(-)
diff --git a/src/main/java/com/hx/util/DateUtil.java b/src/main/java/com/hx/util/DateUtil.java
index 3ba7770..617b78b 100644
--- a/src/main/java/com/hx/util/DateUtil.java
+++ b/src/main/java/com/hx/util/DateUtil.java
@@ -536,8 +536,21 @@
}
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();
}
/**
@@ -555,6 +568,22 @@
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 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 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();
}
/**
@@ -601,4 +630,45 @@
return sdf.format(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);
+ }
}
--
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