logging模块学习

1、创建句柄

2、句柄添加格式化输出

3、句柄添加报警级别

4、logger添加句柄

import sys
import os
#为了防止命令行执行py文件报错
curPath = os.path.abspath(os.path.dirname(__file__))
rootPath = os.path.split(curPath)[0]
sys.path.append(rootPath)
import logging
import time
from logging.handlers import TimedRotatingFileHandler


class Logger(object):
    def __init__(self,logger_name='interfaceTest'):
        self.logger = logging.getLogger(logger_name)
        logging.root.setLevel(logging.NOTSET)
        self.log_file_name = 'test.log'
        self.backip_count = 5
        #日志输出级别
        self.console_output_level = 'WARN'
        self.file_output_level = 'INFO'
        #日子输出格式
        self.formatter = logging.Formatter('%(asctime)s - %(name)s - %(levelname)s - %(message)s')

    def get_logger(self):
         """在logger中添加日子句柄并返回，如果logger已有句柄，则直接返回"""
         if not self.logger.handlers:
             console_handle = logging.StreamHandler()
             console_handle.setFormatter(self.formatter)
             console_handle.setLevel(self.console_output_level)
             self.logger.addHandler(console_handle)


             #每天新建一个日志文件，最多保留backup_count份
             file_handle = TimedRotatingFileHandler(".\\logger\\"+self.log_file_name,
                                                    when='D',
                                                    interval=1,
                                                    backupCount=self.backip_count,
                                                    delay=True,
                                                    encoding='UTF-8'
                                                    )
             file_handle.setFormatter(self.formatter)
             file_handle.setLevel(self.file_output_level)
             self.logger.addHandler(file_handle)
         return self.logger

logger = Logger().get_logger()