• started() - 记录 MongoDB 命令开始执行的内容
• succeeded() - 记录 MongoDB 命令成功执行的内容（当前被注释掉）
• failed() - 记录 MongoDB 命令执行失败的内容

import logging
from pymongo import monitoringlogging.basicConfig(level=logging.DEBUG)class CommandLogger(monitoring.CommandListener):def started(self, event):logging.debug(f"MongoDB command started: {event.command_name} - {event.command}")def succeeded(self, event):logging.info(f"MongoDB command succeeded: {event.command_name} - {event.reply}")def failed(self, event):logging.error(f"MongoDB command failed: {event.command_name} - {event.failure}")# 注册监听器
monitoring.register(CommandLogger())