""" MySQL工具库自定义异常类 """ class MySQLBaseException(Exception): """MySQL工具库基础异常类""" def __init__(self, message: str, error_code: str = None, original_error: Exception = None): self.message = message self.error_code = error_code self.original_error = original_error super().__init__(self.message) class MySQLConnectionError(MySQLBaseException): """MySQL连接异常""" pass class MySQLConfigError(MySQLBaseException): """MySQL配置异常""" pass class MySQLQueryError(MySQLBaseException): """MySQL查询异常""" pass class MySQLTransactionError(MySQLBaseException): """MySQL事务异常""" pass class MySQLPoolError(MySQLBaseException): """MySQL连接池异常""" pass class MySQLValidationError(MySQLBaseException): """MySQL数据验证异常""" pass