(每日一练python)Redis 连接器
2022/1/30 19:06:51
本文主要是介绍(每日一练python)Redis 连接器,对大家解决编程问题具有一定的参考价值,需要的程序猿们随着小编来一起学习吧!
Python Redis 连接器
实现一个 redis 连接器,能打开/关闭 redis 连结,使用连接池
# -*- coding: UTF-8 -*- import logging import json from error_code import ErrorCode import redis logger = logging.Logger(__name__) redis_connection_pool = None class RedisConnector(): def __init__(self, host, port, password) -> None: global redis_connection_pool if redis_connection_pool is None: redis_connection_pool = redis.ConnectionPool( host=host, port=port, password=password ) self.conn = None def open(self): # TODO(You): 请在此实现打开 redis 代码 def close(self): if self.conn is not None: self.conn.close() self.conn = None return {'err': ErrorCode.SUCCESS} if __name__ == '__main__': redis_connector = RedisConnector("127.0.0.1", 6379, None) ret = redis_connector.open() assert ret['err'] == ErrorCode.SUCCESS ret = redis_connector.close() assert ret['err'] == ErrorCode.SUCCESS
实现这一功能的代码是
class RedisConnector(): ... def open(self): if self.conn is not None: return {"err": ErrorCode.SUCCESS} try: self.conn = redis.StrictRedis( connection_pool=redis_connection_pool) return {"err": ErrorCode.SUCCESS} except Exception as e: logger.error('open redis exception:', str(e)) self.conn = None return {"err": ErrorCode.DB_OPEN_FAILED}
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