59 lines
1.8 KiB
Python
59 lines
1.8 KiB
Python
import redis.asyncio as redis
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from .config_loader import global_config as config
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from .logger import logger
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class RedisManager:
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"""
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Redis 连接管理器（异步单例）
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"""
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_instance = None
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_redis = None
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def __new__(cls):
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if cls._instance is None:
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cls._instance = super().__new__(cls)
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return cls._instance
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async def initialize(self):
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"""
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异步初始化 Redis 连接并进行健康检查
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"""
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if self._redis is None:
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try:
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host = config.redis['host']
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port = config.redis['port']
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db = config.redis['db']
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password = config.redis.get('password')
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logger.info(f"正在尝试连接 Redis: {host}:{port}, DB: {db}")
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self._redis = redis.Redis(
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host=host,
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port=port,
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db=db,
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password=password,
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decode_responses=True
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)
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if await self._redis.ping():
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logger.success("Redis 连接成功！")
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else:
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logger.error("Redis 连接失败: PING 命令无响应")
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except redis.exceptions.ConnectionError as e:
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logger.error(f"Redis 连接失败: {e}")
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self._redis = None
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except Exception as e:
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logger.exception(f"Redis 初始化时发生未知错误: {e}")
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self._redis = None
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@property
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def redis(self):
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"""
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获取 Redis 连接实例
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"""
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if self._redis is None:
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raise ConnectionError("Redis 未初始化或连接失败，请先调用 initialize()")
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return self._redis
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# 全局 Redis 管理器实例
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redis_manager = RedisManager()
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