Python logging自定义字段输出及打印颜色

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 json
import logging

class 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 True

if __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 logging
import os
from logging import handlers

class 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 True

class 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-8
import logging
import os
from 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

以上就是本文的全部内容，希望对大家的学习有所帮助，也希望大家多多支持我们。