diff --git a/db/connection.py b/db/connection.py
index b5301d2..c614b82 100644
--- a/db/connection.py
+++ b/db/connection.py
@@ -1,9 +1,8 @@
-# -*- coding: utf-8 -*-
 import logging
-import mysql.connector.pooling
+import pymysql
+from pymysql.cursors import DictCursor
+from dbutils.pooled_db import PooledDB
 import redis
-from typing import Optional
-
 
 class DBConnectionManager:
     """数据库连接管理器，负责管理MySQL和Redis连接池"""
@@ -38,10 +37,7 @@ class DBConnectionManager:
             mysql_config: MySQL配置
             redis_config: Redis配置
         """
-        # 防止直接实例化
-        if DBConnectionManager._instance is not None:
-            return
-            
+        self.logger = logging.getLogger("DBConnectionManager")
         self.mysql_pool = None
         self.redis_pool = None
         
@@ -52,15 +48,98 @@ class DBConnectionManager:
         # 初始化Redis连接池
         if redis_config:
             self.init_redis_pool(redis_config)
-            
+    
+    def init_mysql_pool(self, config):
+        """初始化MySQL连接池
+        
+        Args:
+            config: MySQL配置，包含host, port, user, password, database等
+        """
+        try:
+            if not config:
+                self.logger.warning("MySQL配置为空，跳过初始化")
+                return
+                
+            self.mysql_pool = PooledDB(
+                creator=pymysql,
+                maxconnections=10,  # 连接池最大连接数
+                mincached=2,        # 初始化时，连接池中至少创建的空闲的连接
+                maxcached=5,        # 连接池中最多闲置的连接
+                blocking=True,      # 连接池中如果没有可用连接后，是否阻塞等待
+                maxusage=None,      # 一个连接最多被重复使用的次数，None表示无限制
+                setsession=[],      # 开始会话前执行的命令列表
+                ping=0,             # ping MySQL服务端，检查是否服务可用
+                host=config.get('host', 'localhost'),
+                port=config.get('port', 3306),
+                user=config.get('user', 'root'),
+                password=config.get('password', ''),
+                database=config.get('database', ''),
+                charset=config.get('charset', 'utf8mb4'),
+                cursorclass=DictCursor
+            )
+            self.logger.info("MySQL连接池初始化成功")
+        except Exception as e:
+            self.logger.error(f"MySQL连接池初始化失败: {e}")
+            self.mysql_pool = None
+    
+    def init_redis_pool(self, config):
+        """初始化Redis连接池
+        
+        Args:
+            config: Redis配置，包含host, port, password, db等
+        """
+        try:
+            if not config:
+                self.logger.warning("Redis配置为空，跳过初始化")
+                return
+                
+            self.redis_pool = redis.ConnectionPool(
+                host=config.get('host', 'localhost'),
+                port=config.get('port', 6379),
+                password=config.get('password', None),
+                db=config.get('db', 0),
+                decode_responses=config.get('decode_responses', True),
+                max_connections=config.get('max_connections', 10)
+            )
+            self.logger.info("Redis连接池初始化成功")
+        except Exception as e:
+            self.logger.error(f"Redis连接池初始化失败: {e}")
+            self.redis_pool = None
+    
     def get_mysql_connection(self):
-        """获取MySQL连接"""
-        if not self.mysql_pool:
+        """获取MySQL连接
+        
+        Returns:
+            MySQL连接
+        
+        Raises:
+            Exception: MySQL连接池未初始化
+        """
+        if self.mysql_pool is None:
             raise Exception("MySQL连接池未初始化")
-        return self.mysql_pool.get_connection()
+        
+        return self.mysql_pool.connection()
     
     def get_redis_connection(self):
-        """获取Redis连接"""
-        if not self.redis_pool:
+        """获取Redis连接
+        
+        Returns:
+            Redis连接
+        
+        Raises:
+            Exception: Redis连接池未初始化
+        """
+        if self.redis_pool is None:
             raise Exception("Redis连接池未初始化")
-        return redis.Redis(connection_pool=self.redis_pool)
\ No newline at end of file
+        
+        return redis.Redis(connection_pool=self.redis_pool)
+    
+    def close(self):
+        """关闭所有连接池"""
+        # MySQL连接池会自动管理连接的关闭
+        self.mysql_pool = None
+        
+        # 关闭Redis连接池
+        if self.redis_pool:
+            self.redis_pool.disconnect()
+            self.redis_pool = None
\ No newline at end of file