引言
设计流程
话不多说，流程图已经画，自己领会。
源码
"""
封装log方法
"""
import os
import time
import logging.handlers
# 日志打印等级
LEVELS = {
'debug': logging.DEBUG,
'info': logging.INFO,
'warning': logging.WARNING,
'error': logging.ERROR,
'critical': logging.CRITICAL
}
# 创建一个日志
logger = logging.getLogger()
level = 'default'
# 创建日志文件方法
def create_file(filename):
path = filename[0:filename.rfind('/')]
if not os.path.isdir(path):
os.makedirs(path)
if not os.path.isfile(filename):
fd = open(filename, mode='w', encoding='utf-8')
fd.close()
else:
pass
# 给logger添加handler 添加内容到日志句柄中
def set_handler(levels):
if levels == 'error':
logger.addHandler(MyLog.err_handler)
logger.addHandler(MyLog.handler)
# 在记录日志之后移除句柄
def remove_handler(levels):
if levels == 'error':
logger.removeHandler(MyLog.err_handler)
logger.removeHandler(MyLog.handler)
def get_current_time():
return time.strftime(MyLog.date, time.localtime(time.time()))
class MyLog:
path = os.path.dirname(os.path.dirname(os.path.abspath(__file__)))
log_file = path+'/Log/log.log'
err_file = path+'/Log/err.log'
logger.setLevel(LEVELS.get(level, logging.NOTSET))
create_file(log_file)
create_file(err_file)
date = '%Y-%m-%d %H:%M:%S'
# 创建一个handler，用于写入日志文件
handler = logging.FileHandler(log_file, encoding='utf-8')
err_handler = logging.FileHandler(err_file, encoding='utf-8')
@staticmethod
def debug(log_meg):
set_handler('debug')
# 文件中输出模式
logger.debug("[DEBUG " + get_current_time() + "]" + log_meg)
remove_handler('debug')
@staticmethod
def info(log_meg):
set_handler('info')
logger.info("[INFO " + get_current_time() + "]" + log_meg)
remove_handler('info')
@staticmethod
def warning(log_meg):
set_handler('warning')
logger.warning("[WARNING " + get_current_time() + "]" + log_meg)
remove_handler('warning')
@staticmethod
def error(log_meg):
set_handler('error')
logger.error("[ERROR " + get_current_time() + "]" + log_meg)
remove_handler('error')
@staticmethod
def critical(log_meg):
set_handler('critical')
logger.error("[CRITICAL " + get_current_time() + "]" + log_meg)
remove_handler('critical')
# 设置控制台输出格式
formatter = logging.Formatter(
'[%(asctime)s] [%(levelname)s] %(message)s', '%Y-%m-%d %H:%M:%S')
# 再创建一个handler，用于输出到控制台
console = logging.StreamHandler()
console.setFormatter(formatter)
logger.addHandler(console)
console.setLevel(logging.NOTSET)
if __name__ == "__main__":
MyLog.debug("This is debug message")
MyLog.info("This is info message")
MyLog.warning("This is warning message")
MyLog.error("This is error")
MyLog.critical("This is critical message")
运行结果:
[2020-05-23 20:41:10] [DEBUG] [DEBUG 2020-05-23 20:41:10]This is debug message
[2020-05-23 20:41:10] [INFO] [INFO 2020-05-23 20:41:10]This is info message
[2020-05-23 20:41:10] [WARNING] [WARNING 2020-05-23 20:41:10]This is warning message
[2020-05-23 20:41:10] [ERROR] [ERROR 2020-05-23 20:41:10]This is error
[2020-05-23 20:41:10] [ERROR] [CRITICAL 2020-05-23 20:41:10]This is critical message
Process finished with exit code 0
文件结构：
文件内容：
总结
以上就是python日志的简单封装，基本上满足日常的需求。
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