From b3064052c54fa095ea0b597871f003a97c3f4c99 Mon Sep 17 00:00:00 2001
From: Your Name <you@example.com>
Date: 星期日, 05 二月 2023 13:35:22 +0800
Subject: [PATCH] 优化代码
---
java110-utils/src/main/java/com/java110/utils/util/DateUtil.java | 56 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++
1 files changed, 56 insertions(+), 0 deletions(-)
diff --git a/java110-utils/src/main/java/com/java110/utils/util/DateUtil.java b/java110-utils/src/main/java/com/java110/utils/util/DateUtil.java
index 050d5e3..8932162 100755
--- a/java110-utils/src/main/java/com/java110/utils/util/DateUtil.java
+++ b/java110-utils/src/main/java/com/java110/utils/util/DateUtil.java
@@ -1,5 +1,6 @@
package com.java110.utils.util;
+import java.math.BigDecimal;
import java.sql.Timestamp;
import java.text.DateFormat;
import java.text.ParseException;
@@ -610,4 +611,59 @@
return Integer.parseInt(String.valueOf(between_days));
}
+
+ public static double dayCompare(Date fromDate, Date toDate) {
+ double resMonth = 0.0;
+ Calendar from = Calendar.getInstance();
+ from.setTime(fromDate);
+ Calendar to = Calendar.getInstance();
+ to.setTime(toDate);
+ //姣旇緝鏈堜唤宸� 鍙兘鏈夋暣鏁� 涔熶細璐熸暟
+ int result = to.get(Calendar.MONTH) - from.get(Calendar.MONTH);
+ //姣旇緝骞村樊
+ int month = (to.get(Calendar.YEAR) - from.get(Calendar.YEAR)) * 12;
+
+ //鐪熷疄 鐩稿樊鏈堜唤
+ result = result + month;
+
+ //寮�濮嬫椂闂� 2021-06-01 2021-08-05 result = 2 2021-08-01
+ Calendar newFrom = Calendar.getInstance();
+ newFrom.setTime(fromDate);
+ newFrom.add(Calendar.MONTH, result);
+ //濡傛灉鍔犳湀浠藉悗 澶т簬浜嗗綋鍓嶆椂闂� 榛樿鍔� 鏈堜唤 -1 鎯呭喌 12-19 21-01-10
+ //杩欎釜鏄鐨勯�昏緫涓�瀹氬ソ濂界悊瑙�
+ if (newFrom.getTime().getTime() > toDate.getTime()) {
+ newFrom.setTime(fromDate);
+ result = result - 1;
+ newFrom.add(Calendar.MONTH, result);
+ }
+
+ // t1 2021-08-01 t2 2021-08-05
+ long t1 = newFrom.getTime().getTime();
+ long t2 = to.getTime().getTime();
+ //鐩稿樊姣
+ double days = (t2 - t1) * 1.00 / (24 * 60 * 60 * 1000);
+ BigDecimal tmpDays = new BigDecimal(days); //鐩稿樊澶╂暟
+ BigDecimal monthDay = null;
+ Calendar newFromMaxDay = Calendar.getInstance();
+ newFromMaxDay.set(newFrom.get(Calendar.YEAR), newFrom.get(Calendar.MONTH), 1, 0, 0, 0);
+ newFromMaxDay.add(Calendar.MONTH, 1); //涓嬩釜鏈�1鍙�
+ //鍦ㄥ綋鍓嶆湀涓� 杩欏潡鏈夐棶棰�
+ if (toDate.getTime() < newFromMaxDay.getTime().getTime()) {
+ monthDay = new BigDecimal(newFrom.getActualMaximum(Calendar.DAY_OF_MONTH));
+ return tmpDays.divide(monthDay, 4, BigDecimal.ROUND_HALF_UP).add(new BigDecimal(result)).doubleValue();
+ }
+ // 涓婃湀澶╂暟
+ days = (newFromMaxDay.getTimeInMillis() - t1) * 1.00 / (24 * 60 * 60 * 1000);
+ tmpDays = new BigDecimal(days);
+ monthDay = new BigDecimal(newFrom.getActualMaximum(Calendar.DAY_OF_MONTH));
+ BigDecimal preRresMonth = tmpDays.divide(monthDay, 4, BigDecimal.ROUND_HALF_UP);
+
+ //涓嬫湀澶╂暟
+ days = (t2 - newFromMaxDay.getTimeInMillis()) * 1.00 / (24 * 60 * 60 * 1000);
+ tmpDays = new BigDecimal(days);
+ monthDay = new BigDecimal(newFromMaxDay.getActualMaximum(Calendar.DAY_OF_MONTH));
+ resMonth = tmpDays.divide(monthDay, 4, BigDecimal.ROUND_HALF_UP).add(new BigDecimal(result)).add(preRresMonth).doubleValue();
+ return resMonth;
+ }
}
--
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