From d07b02f12c47f0e513d98a49d1106d22416868c0 Mon Sep 17 00:00:00 2001
From: CeDo <cedoogle@gmail.com>
Date: 星期五, 11 六月 2021 13:37:29 +0800
Subject: [PATCH] bugfixed
---
springcloud_k8s_panzhihuazhihuishequ/common/src/main/java/com/panzhihua/common/utlis/DateUtils.java | 91 +++++++++++++++++++++++++++++++++++++++++++++
1 files changed, 91 insertions(+), 0 deletions(-)
diff --git a/springcloud_k8s_panzhihuazhihuishequ/common/src/main/java/com/panzhihua/common/utlis/DateUtils.java b/springcloud_k8s_panzhihuazhihuishequ/common/src/main/java/com/panzhihua/common/utlis/DateUtils.java
index e02a10e..f31dc61c 100644
--- a/springcloud_k8s_panzhihuazhihuishequ/common/src/main/java/com/panzhihua/common/utlis/DateUtils.java
+++ b/springcloud_k8s_panzhihuazhihuishequ/common/src/main/java/com/panzhihua/common/utlis/DateUtils.java
@@ -594,6 +594,96 @@
}
}
+ /**
+ * 日期相加减
+ * @param time
+ * 时间字符串 yyyy-MM-dd HH:mm:ss
+ * @param num
+ * 加的数，-num就是减去
+ * @return
+ * 减去相应的数量的年的日期
+ * @throws ParseException
+ */
+ public static Date yearAddNum(Date time, Integer num) {
+ //SimpleDateFormat format = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
+ //Date date = format.parse(time);
+
+ Calendar calendar = Calendar.getInstance();
+ calendar.setTime(time);
+ calendar.add(Calendar.YEAR, num);
+ Date newTime = calendar.getTime();
+ return newTime;
+ }
+
+ /**
+ * 将日期对象格式化成yyyy-MM-dd格式的字符串
+ *
+ * @param date 日期对象
+ * @return String
+ */
+ public static String getDateStringYMD(Date date) {
+
+ String dateString = "";
+ if (date != null) {
+ dateString = yyyyMMdd_format.format(date);
+ }
+ return dateString;
+ }
+
+ /**
+ * 获取当前月第一天
+ * @return
+ */
+ public static Date getFirstDayOfMonth() {
+ Calendar cal = Calendar.getInstance();
+ cal.add(Calendar.MONTH,0);
+ int actualMinimum = cal.getActualMinimum(Calendar.DAY_OF_MONTH);
+ cal.set(cal.get(Calendar.YEAR), cal.get(Calendar.MONDAY),actualMinimum,00,00,00);
+ return cal.getTime();
+ }
+
+ /**
+ * 获取当前年月的第一天时间
+ * @param year 年份
+ * @param month 月份
+ * @return 时间
+ */
+ public static Date getYearMonthStart(Integer year,Integer month) {
+ Calendar cal = Calendar.getInstance();
+ // 设置年份
+ cal.set(Calendar.YEAR, year);
+ // 设置月份
+ cal.set(Calendar.MONTH, month - 1);
+ // 获取某月最小天数
+ int firstDay = cal.getMinimum(Calendar.DATE);
+ // 设置日历中月份的最小天数
+ cal.set(Calendar.DAY_OF_MONTH, firstDay);
+ int actualMinimum = cal.getActualMinimum(Calendar.DAY_OF_MONTH);
+ cal.set(cal.get(Calendar.YEAR), cal.get(Calendar.MONDAY),actualMinimum,00,00,00);
+ return cal.getTime();
+ }
+
+ /**
+ * 获取当前年月的最后一天时间
+ * @param year 年份
+ * @param month 月份
+ * @return 时间
+ */
+ public static Date getYearMonthEnd(Integer year,Integer month) {
+ Calendar cal = Calendar.getInstance();
+ // 设置年份
+ cal.set(Calendar.YEAR, year);
+ // 设置月份
+ cal.set(Calendar.MONTH, month - 1);
+ // 获取某月最大天数
+ int lastDay = cal.getMaximum(Calendar.DATE);
+ // 设置日历中月份的最大天数
+ cal.set(Calendar.DAY_OF_MONTH, lastDay);
+ int actualMinimum = cal.getActualMinimum(Calendar.DAY_OF_MONTH);
+ cal.set(cal.get(Calendar.YEAR), cal.get(Calendar.MONDAY),actualMinimum,00,00,00);
+ return cal.getTime();
+ }
+
@@ -602,6 +692,7 @@
// Date date= new Date();
// Date after = new Date();
// System.out.println(calTimeDifference(date,after));
+ System.out.println(getYearMonthStart(2021,2));
}
}
--
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