logging代码
logging.debug("debug")
logging.info("info")
logging.warning("warning")
logging.error("error")5 logging.critical("critical")
测试结果
但是当发生异常时，直接使用无参数的 debug() 、 info() 、 warning() 、 error() 、 critical() 方法并不能记录异常信息，需要设置 exc_info=True 才可以，或者使用 exception() 方法，还可以使用 log() 方法，但还要设置日志级别和 exc_info 参数
a = 5
b = 0
try:
c = a / b
except Exception as e:
# 下面三种方式三选一，推荐使用第一种
logging.exception("Exception occurred")
logging.error("Exception occurred", exc_info=True)
logging.log(level=logging.ERROR, msg="Exception occurred", exc_info=True)
|4logging之Formatter对象Formatter 对象用来设置具体的输出格式，常用格式如下表所示
|5logging封装类
#!/usr/bin/env python
# -*- coding: utf-8 -*-
"""
__title__ = logging工具类
__Time__ = 2019/8/8 19:26
"""
import logging
from logging import handlers
class Loggers:
__instance = None
def __new__(cls, *args, **kwargs):
if not cls.__instance:
cls.__instance = object.__new__(cls, *args, **kwargs)
return cls.__instance
def __init__(self):
# 设置输出格式
formater = logging.Formatter(
'[%(asctime)s]-[%(levelname)s]-[%(filename)s]-[%(funcName)s:%(lineno)d] : %(message)s')
# 定义一个日志收集器
self.logger = logging.getLogger('log')
# 设定级别
self.logger.setLevel(logging.DEBUG)
# 输出渠道一 - 文件形式
self.fileLogger = handlers.RotatingFileHandler("./test.log", maxBytes=5242880, backupCount=3)
# 输出渠道二 - 控制台
self.console = logging.StreamHandler()
# 控制台输出级别
self.console.setLevel(logging.DEBUG)
# 输出渠道对接输出格式
self.console.setFormatter(formater)
self.fileLogger.setFormatter(formater)
# 日志收集器对接输出渠道
self.logger.addHandler(self.fileLogger)
self.logger.addHandler(self.console)
def debug(self, msg):
self.logger.debug(msg=msg)
def info(self, msg):
self.logger.info(msg=msg)
def warn(self, msg):
self.logger.warning(msg=msg)
def error(self, msg):
self.logger.error(msg=msg)
def excepiton(self, msg):
self.logger.exception(msg=msg)
loggers = Loggers()
if __name__ == '__main__':
loggers.debug('debug')
loggers.info('info')
|6logzero封装类
#!/usr/bin/env python
# -*- coding: utf-8 -*-
"""
__title__ = logzero日志封装类
__Time__ = 2019/8/8 19:26
"""
import logging
import logzero
from logzero import logger
class Logzero(object):
__instance = None
def __new__(cls, *args, **kwargs):
if not cls.__instance:
cls.__instance = object.__new__(cls, *args, **kwargs)
return cls.__instance
def __init__(self):
self.logger = logger
# console控制台输入日志格式 - 带颜色
self.console_format = '%(color)s' \
'[%(asctime)s]-[%(levelname)1.1s]-[%(filename)s]-[%(funcName)s:%(lineno)d] 日志信息: %(message)s ' \
'%(end_color)s '
# 创建一个Formatter对象
self.formatter = logzero.LogFormatter(fmt=self.console_format)
# 将formatter提供给setup_default_logger方法的formatter参数
logzero.setup_default_logger(formatter=self.formatter)
# 设置日志文件输出格式
self.formater = logging.Formatter(
'[%(asctime)s]-[%(levelname)s]-[%(filename)s]-[%(funcName)s:%(lineno)d] 日志信息: %(message)s')
# 设置日志文件等级
logzero.loglevel(logging.DEBUG)
# 输出日志文件路径和格式
logzero.logfile("F:\\imocInterface\\log/tests.log", formatter=self.formater)
def debug(self, msg):
self.logger.debug(msg=msg)
def info(self, msg):
self.logger.info(msg=msg)
def warning(self, msg):
self.logger.warning(msg=msg)
def error(self, msg):
self.logger.error(msg=msg)
def exception(self, msg):
self.logger.exception(msg=msg)
logzeros = Logzero()
if __name__ == '__main__':
logzeros.debug("debug")
logzeros.info("info")
logzeros.warning("warning")
logzeros.error("error")
a = 5
b = 0
try:
c = a / b
except Exception as e:
logzeros.exception("Exception occurred")
总结 以上所述是小编给大家介绍的Python中logging日志库实例详解，希望对大家有所帮助，也非常感谢大家对社区网站的支持！ | |||||||||||||||||||||||||||||||||||||||||||||||
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