From 6a4b079181d22a54a11dfdafd5400b171a1f3fc4 Mon Sep 17 00:00:00 2001
From: lisy <java@lishouyideAir.lan>
Date: 星期三, 14 六月 2023 12:11:10 +0800
Subject: [PATCH] 开始上课：用户的学员信息主页查询接口(实体类，表的工具类)
---
cloud-server-course/src/main/java/com/dsh/course/util/DateUtil.java | 34 ++++++++++++++++++++++++++++++++++
1 files changed, 34 insertions(+), 0 deletions(-)
diff --git a/cloud-server-course/src/main/java/com/dsh/course/util/DateUtil.java b/cloud-server-course/src/main/java/com/dsh/course/util/DateUtil.java
index f9e576f..b4de802 100644
--- a/cloud-server-course/src/main/java/com/dsh/course/util/DateUtil.java
+++ b/cloud-server-course/src/main/java/com/dsh/course/util/DateUtil.java
@@ -329,4 +329,38 @@
return dt1.getTime();
}
+
+ /**
+ * 计算年龄
+ * @param birthDate
+ * @return
+ */
+ public static int age(Date birthDate) {
+ // 当前日历
+ Calendar nowCalendar = Calendar.getInstance();
+ // 生日大于当前日期
+ if (nowCalendar.before(birthDate)) {
+ throw new IllegalArgumentException("The birth date is before current time, it's unbelievable");
+ }
+ // 当前年月日
+ int yearNow = nowCalendar.get(Calendar.YEAR);
+ int monthNow = nowCalendar.get(Calendar.MONTH);
+ int dayNow = nowCalendar.get(Calendar.DAY_OF_MONTH);
+ // 出生日期年月日
+ Calendar birthCalendar = Calendar.getInstance();
+ birthCalendar.setTime(birthDate);
+ int yearBirth = birthCalendar.get(Calendar.YEAR);
+ int monthBirth = birthCalendar.get(Calendar.MONTH);
+ int dayBirth = birthCalendar.get(Calendar.DAY_OF_MONTH);
+ // 粗计算年龄
+ int age = yearNow - yearBirth;
+ // 当前月份小于出生月份年龄减一
+ if (monthNow < monthBirth) { age--; }
+ // 当前月份等于出生月份，日小于生日年龄减一
+ else if (monthNow == monthBirth && dayNow < dayBirth) { age--; }
+ // 返回年龄值
+ return age;
+ }
+
+
}
--
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