58 lines
1.5 KiB
Python
58 lines
1.5 KiB
Python
import logging
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import os
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import sys
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from logging.handlers import RotatingFileHandler
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def get_logger(name):
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"""
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获取统一配置的logger实例
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Args:
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name: logger名称，通常使用 __name__
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Returns:
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logging.Logger: 配置好的logger实例
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"""
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logger = logging.getLogger(name)
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# 如果logger已经配置过，直接返回
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if logger.handlers:
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return logger
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# 设置日志级别
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logger.setLevel(logging.INFO)
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# 创建日志目录
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log_dir = os.path.join(os.path.dirname(os.path.dirname(os.path.dirname(__file__))), 'logs')
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os.makedirs(log_dir, exist_ok=True)
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# 创建日志格式
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formatter = logging.Formatter(
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'%(asctime)s - %(name)s - %(levelname)s - %(message)s',
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datefmt='%Y-%m-%d %H:%M:%S'
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)
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# 文件处理器 - 使用轮转日志
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log_file = os.path.join(log_dir, 'langgraph.log')
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file_handler = RotatingFileHandler(
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log_file,
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maxBytes=10*1024*1024, # 10MB
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backupCount=5,
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encoding='utf-8'
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)
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file_handler.setLevel(logging.INFO)
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file_handler.setFormatter(formatter)
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# 控制台处理器
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console_handler = logging.StreamHandler(sys.stdout)
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console_handler.setLevel(logging.INFO)
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console_handler.setFormatter(formatter)
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# 添加处理器
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logger.addHandler(file_handler)
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logger.addHandler(console_handler)
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# 防止日志向上传播
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logger.propagate = False
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return logger |