From 9f2e3b1b7d4c69a39931ea62664ea2357575a404 Mon Sep 17 00:00:00 2001
From: xuxin <840198532@qq.com>
Date: Tue, 13 Oct 2026 10:34:16 +0800
Subject: [PATCH] =?UTF-8?q?s-day01--DateTimeFormater=E7=B1=BB=EF=BC=88?=
 =?UTF-8?q?=E4=BB=A3=E6=9B=BFSimpleDateFormat=EF=BC=89?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 .../jdk8_time04/DateTimeFormatterDemo12.java  | 32 +++++++++++++++++++
 1 file changed, 32 insertions(+)
 create mode 100644 s-day01/src/com/inmind/jdk8_time04/DateTimeFormatterDemo12.java

diff --git a/s-day01/src/com/inmind/jdk8_time04/DateTimeFormatterDemo12.java b/s-day01/src/com/inmind/jdk8_time04/DateTimeFormatterDemo12.java
new file mode 100644
index 0000000..b67a764
--- /dev/null
+++ b/s-day01/src/com/inmind/jdk8_time04/DateTimeFormatterDemo12.java
@@ -0,0 +1,32 @@
+package com.inmind.jdk8_time04;
+
+import java.time.Instant;
+import java.time.LocalDate;
+import java.time.LocalDateTime;
+import java.time.LocalTime;
+import java.time.format.DateTimeFormatter;
+
+/**
+ *  目标：掌握JDK 8新增的DateTimeFormatter格式化器的用法。(时间与字符串的互转)
+ */
+public class DateTimeFormatterDemo12 {
+    public static void main(String[] args) {
+        //1.创建一个格式化器对象
+        DateTimeFormatter dtf = DateTimeFormatter.ofPattern("yyyy年MM月dd日");
+        //2.格式化时间
+        LocalDateTime now = LocalDateTime.now();//当前时间
+        Instant instant = Instant.now();
+        System.out.println(now);
+        String timeStr = dtf.format(now);
+        System.out.println(timeStr);
+        //3.格式化时间，其实还有一种方案。
+        String timeStr1 = now.format(dtf);
+        System.out.println(timeStr1);
+
+        //4.解析时间：解析时间一般使用LocalDateTime提供的解析方法来解析。
+        //注意：在实际开发中，对应的时间，从前端传到后台，一般是字符串，不方便操作时间的，所以要转为时间对象
+        String birthdayTime = "2006年10月13日";
+        LocalDate birthdayObj = LocalDate.parse(birthdayTime, dtf);
+        System.out.println(birthdayObj);
+    }
+}