logging模块是Python的一个标准库模块，开发过程中，可以通过该模块，灵活的完成日志的记录。

logging模块提供了两种记录日志的方式：

1）使用logging提供的模块级别的函数（logging.basicConfig，logging.debug，logging.info...）

2）使用logging模块的组件（loggers，handlers，filters，formatters）

简单示例

import jsonimport loggingclass JsonFilter(logging.Filter): #此处定义字段的默认值,如果打印信息时不设置对应字段，则为默认值 #服务服务名或者服务主机 server = "" #访问ip ip = "" #访问资源路径 sourceurl = "" #访问方式 method = "" # 访问设备 devices = "" # 访问协议 Protocols = "" #访问结果的HTTP状态码 result_Httpstatus = "" #访问结果的状态码 result_status = "" #访问结果的msg信息 result_msg = "" #访问结果的数据大小 result_msgsize = "" def filter(self, record): record.server = self.server record.ip = self.ip record.sourceurl = self.sourceurl record.method = self.method record.devices = self.devices record.Protocols = self.Protocols record.result_Httpstatus = self.result_Httpstatus record.result_status = self.result_status record.result_msg = self.result_msg record.result_msgsize = self.result_msgsize return Trueif __name__ == '__main__': formate = json.dumps({ "time": "%(asctime)s", "levelname": "%(levelname)s", "server": "%(server)s", "ip": "%(ip)s", "sourceurl": "%(sourceurl)s", "method": "%(method)s", "devices": "%(devices)s", "Protocols": "%(Protocols)s", "result_Httpstatus": "%(result_Httpstatus)s", "result_status": "%(result_status)s", "result_msg": "%(result_msg)s", "result_msgsize": "%(result_msgsize)s", }) logging.basicConfig(level=logging.DEBUG,format=formate) logger = logging.getLogger() filter_ = JsonFilter() logger.addFilter(filter_) filter_.server = '127.0.0.1:8100' filter_.ip = '127.0.0.1' filter_.sourceurl = 'http://127.0.0.1:8100/test' filter_.method = 'Get' filter_.devices = 'Chrome' filter_.Protocols = 'HTTP' filter_.result_Httpstatus = '200' filter_.result_status = '1001' filter_.result_msg = '增加成功' filter_.result_msgsize = '4296' logger.info("") #如果你需要在打印字段中设置

一个完整的例子

import loggingimport osfrom logging import handlersclass JsonFilter(logging.Filter): # 此处定义字段的默认值,如果打印信息时不设置对应字段，则为默认值 # 服务服务名或者服务主机 server = "" # 访问ip ip = "" # 访问资源路径 sourceurl = "" # 访问方式 method = "" # 访问设备 devices = "" # 访问协议 Protocols = "" # 访问结果的HTTP状态码 result_Httpstatus = "" # 访问结果的状态码 result_status = "" # 访问结果的msg信息 result_msg = "" # 访问结果的数据大小 result_msgsize = "" def filter(self, record): record.server = self.server record.ip = self.ip record.sourceurl = self.sourceurl record.method = self.method record.devices = self.devices record.Protocols = self.Protocols record.result_Httpstatus = self.result_Httpstatus record.result_status = self.result_status record.result_msg = self.result_msg record.result_msgsize = self.result_msgsize return Trueclass CommonLog(object): """ 日志记录 """ def __init__(self, logger, logname='Access_log'): self.logname = os.path.join("D:\python protest\protest", '%s' % logname) self.logger = logger self.logger.setLevel(logging.INFO) self.logger.propagate = False self.filter_ = JsonFilter() self.logger.addFilter(self.filter_) self.formatter = logging.Formatter("time:%(asctime)s - levelname:%(levelname)s - server:%(server)s - ip:%(ip)s - sourceurl:%(sourceurl)s - method:%(method)s - devices:%(devices)s - Protocols:%(Protocols)s - result_Httpstatus:%(result_Httpstatus)s - result_status:%(result_status)s - result_msg:%(result_msg)s - result_msgsize:%(result_msgsize)s ") def console(self, level, message): # 创建一个FileHandler，用于写到本地 fh = logging.handlers.TimedRotatingFileHandler(self.logname, when='MIDNIGHT', interval=1, encoding='utf-8') fh.suffix = '%Y-%m-%d.log' fh.setLevel(logging.INFO) fh.setFormatter(self.formatter) self.logger.addHandler(fh) # 创建一个StreamHandler,用于输出到控制台 ch = logging.StreamHandler() ch.setLevel(logging.INFO) ch.setFormatter(self.formatter) self.logger.addHandler(ch) if level == 'info': self.logger.info(message) elif level == 'debug': self.logger.debug(message) elif level == 'warning': self.logger.warning(message) elif level == 'error': self.logger.error(message) # 这两行代码是为了避免日志输出重复问题 self.logger.removeHandler(ch) self.logger.removeHandler(fh) # 关闭打开的文件 fh.close() def debug(self, message): self.console('debug', message) def info(self, message): self.console('info', message) def warning(self, message): self.console('warning', message) def error(self, message): self.console('error', message)if __name__ == '__main__': logger = logging.getLogger() log = CommonLog(logger) log.filter_.server = '127.0.0.1:8100' log.filter_.ip = '127.0.0.1' log.filter_.sourceurl = 'http://127.0.0.1:8100/test' log.filter_.method = 'Get' log.filter_.devices = 'Chrome' log.filter_.Protocols = 'HTTP' log.filter_.result_Httpstatus = '200' log.filter_.result_status = '1001' log.filter_.result_msg = '增加成功' log.filter_.result_msgsize = '4296' log.info("")

设置日志打印颜色

# coding:utf-8import loggingimport osfrom logging.handlers import RotatingFileHandler # import colorlog # 控制台日志输入颜色log_colors_config = { 'DEBUG': 'cyan', 'INFO': 'green', 'WARNING': 'yellow', 'ERROR': 'red', 'CRITICAL': 'red',}class Log: def __init__(self, logname='Access_log'): self.logname = os.path.join("D:\python_protest\protest", '%s' % logname) self.logger = logging.getLogger() self.logger.setLevel(logging.DEBUG) self.formatter = colorlog.ColoredFormatter( '%(log_color)s[%(asctime)s] [%(filename)s:%(lineno)d] [%(module)s:%(funcName)s] [%(levelname)s]- %(message)s', log_colors=log_colors_config) # 日志输出格式 def console(self, level, message): # 创建一个FileHandler，用于写到本地 fh = logging.handlers.TimedRotatingFileHandler(self.logname, when='MIDNIGHT', interval=1, encoding='utf-8') fh.setLevel(logging.DEBUG) fh.setFormatter(self.formatter) self.logger.addHandler(fh) # 创建一个StreamHandler,用于输出到控制台 ch = logging.StreamHandler() ch.setLevel(logging.DEBUG) ch.setFormatter(self.formatter) self.logger.addHandler(ch) if level == 'info': self.logger.info(message) elif level == 'debug': self.logger.debug(message) elif level == 'warning': self.logger.warning(message) elif level == 'error': self.logger.error(message) # 这两行代码是为了避免日志输出重复问题 self.logger.removeHandler(ch) self.logger.removeHandler(fh) fh.close() # 关闭打开的文件 def debug(self, message): self.console('debug', message) def info(self, message): self.console('info', message) def warning(self, message): self.console('warning', message) def error(self, message): self.console('error', message)if __name__ == "__main__": log = Log() log.info("测试1") # 如果你需要在打印字段中设置 log.debug("测试2") # 如果你需要在打印字段中设置

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