logging模塊是Python的一個(gè)標(biāo)準(zhǔn)庫模塊，開發(fā)過程中，可以通過該模塊，靈活的完成日志的記錄。

logging模塊提供了兩種記錄日志的方式：

1）使用logging提供的模塊級(jí)別的函數(shù)（logging.basicConfig，logging.debug，logging.info...）

2）使用logging模塊的組件（loggers，handlers，filters，formatters）

簡(jiǎn)單示例

import jsonimport loggingclass JsonFilter(logging.Filter): #此處定義字段的默認(rèn)值,如果打印信息時(shí)不設(shè)置對(duì)應(yīng)字段，則為默認(rèn)值 #服務(wù)服務(wù)名或者服務(wù)主機(jī) server = '' #訪問ip ip = '' #訪問資源路徑 sourceurl = '' #訪問方式 method = '' # 訪問設(shè)備 devices = '' # 訪問協(xié)議 Protocols = '' #訪問結(jié)果的HTTP狀態(tài)碼 result_Httpstatus = '' #訪問結(jié)果的狀態(tài)碼 result_status = '' #訪問結(jié)果的msg信息 result_msg = '' #訪問結(jié)果的數(shù)據(jù)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設(shè)置

一個(gè)完整的例子

import loggingimport osfrom logging import handlersclass JsonFilter(logging.Filter): # 此處定義字段的默認(rèn)值,如果打印信息時(shí)不設(shè)置對(duì)應(yīng)字段，則為默認(rèn)值 # 服務(wù)服務(wù)名或者服務(wù)主機(jī) server = '' # 訪問ip ip = '' # 訪問資源路徑 sourceurl = '' # 訪問方式 method = '' # 訪問設(shè)備 devices = '' # 訪問協(xié)議 Protocols = '' # 訪問結(jié)果的HTTP狀態(tài)碼 result_Httpstatus = '' # 訪問結(jié)果的狀態(tài)碼 result_status = '' # 訪問結(jié)果的msg信息 result_msg = '' # 訪問結(jié)果的數(shù)據(jù)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): ''' 日志記錄 ''' def __init__(self, logger, logname=’Access_log’): self.logname = os.path.join('D:python protestprotest', ’%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): # 創(chuàng)建一個(gè)FileHandler，用于寫到本地 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) # 創(chuàng)建一個(gè)StreamHandler,用于輸出到控制臺(tái) 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) # 這兩行代碼是為了避免日志輸出重復(fù)問題 self.logger.removeHandler(ch) self.logger.removeHandler(fh) # 關(guān)閉打開的文件 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('')

設(shè)置日志打印顏色

# coding:utf-8import loggingimport osfrom logging.handlers import RotatingFileHandler # import colorlog # 控制臺(tái)日志輸入顏色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_protestprotest', ’%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) # 日志輸出格式 def console(self, level, message): # 創(chuàng)建一個(gè)FileHandler，用于寫到本地 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) # 創(chuàng)建一個(gè)StreamHandler,用于輸出到控制臺(tái) 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) # 這兩行代碼是為了避免日志輸出重復(fù)問題 self.logger.removeHandler(ch) self.logger.removeHandler(fh) fh.close() # 關(guān)閉打開的文件 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('測(cè)試1') # 如果你需要在打印字段中設(shè)置 log.debug('測(cè)試2') # 如果你需要在打印字段中設(shè)置

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