From 6c60b0116ff14bf4983e63d728c6d74ec12565b0 Mon Sep 17 00:00:00 2001
From: yukaidi <yukaidi@duck.com>
Date: Fri, 29 May 2026 00:32:26 +0800
Subject: [PATCH] =?UTF-8?q?fix(resource):=20JDBCPoolInit=20=E5=AE=9E?=
 =?UTF-8?q?=E7=8E=B0=20AutoCloseable=20=E6=B7=BB=E5=8A=A0=20close()=20?=
 =?UTF-8?q?=E6=96=B9=E6=B3=95?=
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原代码单例模式无关闭方法，应用退出时数据库连接池无法释放。

改为:
- 实现 AutoCloseable 接口
- 添加 close() 方法关闭连接池
- 关闭后将 pool 置 null 防止重复关闭
---
 .../main/java/cn/qaiu/db/pool/JDBCPoolInit.java    | 14 +++++++++++++-
 1 file changed, 13 insertions(+), 1 deletion(-)

diff --git a/core-database/src/main/java/cn/qaiu/db/pool/JDBCPoolInit.java b/core-database/src/main/java/cn/qaiu/db/pool/JDBCPoolInit.java
index b22039f..12e89ab 100644
--- a/core-database/src/main/java/cn/qaiu/db/pool/JDBCPoolInit.java
+++ b/core-database/src/main/java/cn/qaiu/db/pool/JDBCPoolInit.java
@@ -17,7 +17,7 @@ import org.slf4j.LoggerFactory;
  *
  * @author <a href="https://qaiu.top">QAIU</a>
  */
-public class JDBCPoolInit {
+public class JDBCPoolInit implements AutoCloseable {
 
     private static final Logger LOGGER = LoggerFactory.getLogger(JDBCPoolInit.class);
 
@@ -101,4 +101,16 @@ public class JDBCPoolInit {
     synchronized public JDBCPool getPool() {
         return pool;
     }
+
+    /**
+     * 关闭连接池，释放数据库资源
+     */
+    @Override
+    public synchronized void close() {
+        if (pool != null) {
+            pool.close();
+            LOGGER.info("数据库连接池已关闭: URL={}", url);
+            pool = null;
+        }
+    }
 }