python 日志 logger

参考修改：https://www.jianshu.com/p/ca192138806e

• 日志要能够以 json 格式写入文件，且日志文件能够通过文件大小或是时间截断
• 调试过程，日志能够清晰漂亮的格式打印到控制台，即标准输出

依赖

 python 本身的 logging 模块，还依赖了 python-json-logger 模块，需要     pip install python-json-logger 

# -*- coding:utf-8 -*-
# Logger.py
import logging
from logging.handlers import RotatingFileHandler
import os
import re
import string
import time
from pip._internal.utils.logging import ColorizedStreamHandler

aaplication_name="sea-test"
log_path="log/"
time_value = time.strftime('%Y%m%d%H%M', time.localtime(time.time()))
# #create logger name
log_file_name = time.strftime(aaplication_name, time.localtime(time.time())) + "_" +time_value +'.log'
log_file_str="./"+log_path+log_file_name
 
if not os.path.exists(log_path):
    os.mkdir(log_path)
#---------------------------------------


def _getLogger(clsname="my_class"):
    _logger = logging.getLogger(clsname)
    _logger.setLevel(logging.DEBUG)  #  此处要整体设置 logger level = DEBUG，否则后面在不同的 handler 中设置 level 无效
    
    # 创建一个handler，用于写入日志文件
    fileHandler = RotatingFileHandler(filename=log_file_str, mode='a', maxBytes=10 * 1024 * 1024,encoding='utf8', backupCount=100)
#     fileHandler = logging.handlers.TimedRotatingFileHandler(log_file_str, when='D', interval=1, backupCount=30, encoding='UTF-8')
    # to avoid missing date for print daily log
    fileHandler.suffix = "%Y-%m-%d"
    fileHandler.extMatch = re.compile(r"^d{4}-d{2}-d{2}$")
    logging_format = logging.Formatter('%(asctime)s - %(levelname)s - %(filename)s - %(funcName)s - %(lineno)s - %(message)s')
    fileHandler.setFormatter(logging_format)
    _logger.addHandler(fileHandler)
    
    
    # 不同 level， 颜色不同
    consoleHandler = ColorizedStreamHandler()
    consoleHandler.setLevel(logging.DEBUG)
    # 标准输出没必要 json 了，只打印 message 就好了
    consoleFormatter = logging.Formatter('%(asctime)s [%(threadName)-12.12s] [%(levelname)-5.5s]  %(message)s')
    consoleHandler.setFormatter(consoleFormatter)
    _logger.addHandler(consoleHandler)

    return _logger


# def getLogger(clsname):
#     return _getLogger(clsname)



logger = _getLogger()

def info(formatStr:string, *objs):
    logger.info(formatStr.format(*objs))
 
 
def debug(formatStr:string, *objs):
    logger.debug(formatStr.format(*objs))
 
 
def error(formatStr:string, *objs):
    logger.error(formatStr.format(*objs))
  
  
def warning(formatStr:string, *objs):
    logger.warning(formatStr.format(*objs))
    
def critical(formatStr:string, *objs):
    logger.critical(formatStr.format(*objs))




if __name__ == '__main__':
    i = 0
    while True:
        info("{} level debug:{}","我的级别","是debug")
        info("{} level info {}" ,"我的级别","是info")
        warning('{} level warning {}',"我想打印数字",1111)
        i += 1
        if i == 100: break
        
        
        

使用 ：

#encoding=utf-8
# from  import  com.sea.logger.Logger
from com.sea.logger import Logger


Logger.info("1111")
Logger.error("nihai 我是 {} 你好吗？ " ,1111)