前言
曾经转载过一篇关于python日志模块logging的详解 https://www.cnblogs.com/linuxchao/p/linuxchao-log.html, 虽然这篇文章是别人写的, 但是我就是靠着这篇文章入门的logging,所以我觉得没必要再继续说些理论的东西,今天就简单的对日志做个封装,实际工作中直接拿去用吧
方法1
"""
------------------------------------
@Time : 2019/5/22 8:12
@Auth : linux超
@File : logfile.py
@IDE : PyCharm
@Motto: Real warriors,dare to face the bleak warning,dare to face the incisive error!
------------------------------------
"""
import logging
class Log(object):
def __init__(self, name=__name__, path='mylog.log', level='DEBUG'):
self.__name = name
self.__path = path
self.__level = level
self.__logger = logging.getLogger(self.__name)
self.__logger.setLevel(self.__level)
def __ini_handler(self):
"""初始化handler"""
stream_handler = logging.StreamHandler()
file_handler = logging.FileHandler(self.__path, encoding='utf-8')
return stream_handler, file_handler
def __set_handler(self, stream_handler, file_handler, level='DEBUG'):
"""设置handler级别并添加到logger收集器"""
stream_handler.setLevel(level)
file_handler.setLevel(level)
self.__logger.addHandler(stream_handler)
self.__logger.addHandler(file_handler)
def __set_formatter(self, stream_handler, file_handler):
"""设置日志输出格式"""
formatter = logging.Formatter('%(asctime)s-%(name)s-%(filename)s-[line:%(lineno)d]'
'-%(levelname)s-[日志信息]: %(message)s',
datefmt='%a, %d %b %Y %H:%M:%S')
stream_handler.setFormatter(formatter)
file_handler.setFormatter(formatter)
def __close_handler(self, stream_handler, file_handler):
"""关闭handler"""
stream_handler.close()
file_handler.close()
@property
def Logger(self):
"""构造收集器,返回looger"""
stream_handler, file_handler = self.__ini_handler()
self.__set_handler(stream_handler, file_handler)
self.__set_formatter(stream_handler, file_handler)
self.__close_handler(stream_handler, file_handler)
return self.__logger
if __name__ == '__main__':
log = Log(__name__, 'file.log')
logger = log.Logger
logger.debug('I am a debug message')
logger.info('I am a info message')
logger.warning('I am a warning message')
logger.error('I am a error message')
logger.critical('I am a critical message')
初始化方法参数说明
name:自定义日志的名字, 默认是root, 但是我这里是使用调用文件的__name__ 作为默认名字
path:生成的日志的文件名
level:日志的级别,我这里把所有的级别都默认设置了level=DEBUG
方法2
使用logging.fileconfig这个模块实现(不知道这个模块的找度娘恶补一下把)
1.使用配置文件构造日志配置信息
logger.ini
[loggers]
keys = root, example01, example02
[logger_root]
level = DEBUG
handlers = hand01, hand02
[logger_example01]
handlers = hand01, hand02
qualname = example01
propagate = 0
[logger_example02]
handlers = hand01, hand03
qualname = example02
propagate = 0
[handlers]
keys = hand01, hand02, hand03
[handler_hand01]
class = StreamHandler
level = INFO
formatter = form01
args=(sys.stdout, )
[handler_hand02]
class = FileHandler
level = DEBUG
formatter = form01
args = ('log/test_case_log.log', 'a')
[handler_hand03]
class = handlers.RotatingFileHandler
level = INFO
formatter = form01
args = ('log/test_case_log.log', 'a', 10*1024*1024,3)
[formatters]
keys = form01, form02
[formatter_form01]
format = %(asctime)s-%(filename)s-[line:%(lineno)d]-%(levelname)s-[LogInfoMessage]: %(message)s
datefmt = %a, %d %b %Y %H:%M:%S
[formatter_form02]
format = %(name)-12s: %(levelname)-8s-[日志信息]: %(message)s
datefmt = %a, %d %b %Y %H:%M:%S
封装python代码
"""
------------------------------------
@Time : 2019/5/22 9:37
@Auth : linux超
@File : Log.py
@IDE : PyCharm
@Motto: Real warriors,dare to face the bleak warning,dare to face the incisive error!
------------------------------------
"""
import logging
from logging import config
class MyLog(object):
def __init__(self):
config.fileConfig('logger.ini')
self.logger = logging.getLogger('example01')
@property
def my_logger(self):
return self.logger
if __name__ == '__main__':
log = MyLog()
log.my_logger.info('it is my test log message info')
总结
两种方法各有好处吧
第一种代码很好理解思路清晰 , 但是不利于项目都维护,比如日志文件名,日志格式等无法修改,只能通过代码内部修改
第二种其实是使用config模块内部使用配置文件操作模块ConfigParser做了封装, 用配置文件来构造自定义日志器,好处很明显,我们只要通过修改配置文件就能修改日志的格式,名字,级别等等一些设置,无需改动代码,而且使用很简单, 其实这种方法完全不需要封装一个python代码,哪个模块需要输出日志,直接调用config模块获得logger就可以了(就是上面文件的那几行代码),今天就到这吧......