一、默认日志配置
在django 1.4中默认有一个简单的日志配置，如下
# A sample logging configuration. The only tangible logging # performed by this configuration is to send an email to # the site admins on every HTTP 500 error when DEBUG=False. # See http://docs.djangoproject.com/en/dev/topics/logging for # more details on how to customize your logging configuration. LOGGING = { 'version': 1, 'disable_existing_loggers': False, 'filters': { 'require_debug_false': { '()': 'django.utils.log.RequireDebugFalse' } }, 'handlers': { 'mail_admins': { 'level': 'ERROR', 'filters': ['require_debug_false'], 'class': 'django.utils.log.AdminEmailHandler' } }, 'loggers': { 'django.request': { 'handlers': ['mail_admins'], 'level': 'ERROR', 'propagate': True, }, } }
可以看出默认的‘disable_existing_loggers’值为False。
默认没有定义formatters。
字典中，组结束没有加逗号，所以在增加时需要写上。
二、简单例子
1、配置settings.py中LOGGING
增加下面绿色部分内容配置。
LOGGING = { 'version': 1, 'disable_existing_loggers': False, 'formatters': { 'standard': { 'format': '%(levelname)s %(asctime)s %(message)s' }, }, 'filters': { 'require_debug_false': { '()': 'django.utils.log.RequireDebugFalse' }, }, 'handlers': { 'mail_admins': { 'level': 'ERROR', 'filters': ['require_debug_false'], 'class': 'django.utils.log.AdminEmailHandler' }, 'test1_handler':{ 'level':'DEBUG', 'class':'logging.handlers.RotatingFileHandler', 'filename':'/yl/smartcloud/smartcloud/lxytest.log', 'formatter':'standard', }, }, 'loggers': { 'django.request': { 'handlers': ['mail_admins'], 'level': 'ERROR', 'propagate': True, }, 'test1':{ 'handlers':['test1_handler'], 'level':'INFO', 'propagate':False }, } }
配置中level，filename之类的可自定义，需要几个文件就配置几个handler和logger。
2、使用
- 导入logging
- 如果在用到log的view.py中，想使用test1这个日志，就写：
- log=logging.getLogger('test1')
- log.error()
- 在日志内容中传递变量，log.error("Get html error, %s" % (e))
#!/usr/bin/python #-*- coding: UTF-8 -*- import logging from django.http import HttpResponseRedirect,HttpResponse, Http404 from django.shortcuts import render_to_response, get_object_or_404 from django.template import RequestContext log=logging.getLogger('test1') def getHtml(request,arg): try: url=request.path url=url[1:] return render_to_response(url,RequestContext(request)) except Exception,e: #log.error("Get html error, %s" % (e)) log.error("日志内容") raise Http404
使用变量后的log如下：
三、封装django logging模块
django自带的logging模块也是可以用的，如果要求更高，希望加一些自定义的颜色，格式等，可进行下面操作。
1、将log封装成一个单独的app
[root@yl-web-test log]# django-admin.py startapp log [root@yl-web-test log]# ls __init__.py models.py tests.py views.py
2、创建一个log.py，内容如下
#!/usr/bin/python import os import sys import time sys.path.append("..") import conf import logging import logging.handlers try: import curses curses.setupterm() except: curses = None default_logfile = getattr(conf,'SMARTCLOUD_LOGFILE')class Singleton(type): """Singleton Metaclass""" def __init__(cls,name,bases,dic): super(Singleton,cls).__init__(name,bases,dic) cls.instance = None def __call__(cls, *args, **kwargs): if cls.instance is None: cls.instance = super(Singleton,cls).__call__(*args,**kwargs) return cls.instance class MessageFormatter(logging.Formatter): def __init__(self,color,*args,**kwargs): logging.Formatter.__init__(self,*args,**kwargs) self._color=color if color and curses: fg_color = unicode(curses.tigetstr("setaf") or\ curses.tigetstr("setf") or "", "ascii") self._colors={ logging.DEBUG: unicode(curses.tparm(fg_color,2),"ascii"), logging.INFO: unicode(curses.tparm(fg_color,6),"ascii"), logging.WARNING: unicode(curses.tparm(fg_color, 3), "ascii"), logging.ERROR: unicode(curses.tparm(fg_color, 5), "ascii"), logging.FATAL: unicode(curses.tparm(fg_color, 1), "ascii"), } self._normal = unicode(curses.tigetstr("sgr0"), "ascii") def format(self,record): try: record.message = record.getMessage() except Exception, e: record.message = "Bad message (%r): %r" % (e, record.__dict__) record.asctime = time.strftime("%Y/%m/%d %H:%M:%S",\ self.converter(record.created)) prefix = '[%(levelname)-8s %(asctime)s] ' % record.__dict__ if self._color and curses: prefix = (self._colors.get(record.levelno, self._normal) +\ prefix + self._normal) formatted = prefix + record.message if record.exc_info: if not record.exc_text: record.exc_text = self.formatException(record.exc_info) if record.exc_text: formatted = formatted.rstrip() + "\n" + record.exc_text return formatted.replace("\n", "\n ") class MessageLog(object): __metaclass__ = Singleton def __init__(self, logfile=default_logfile,): self._LEVE = {1:logging.INFO, 2:logging.WARNING, 3:logging.ERROR,\ 4:logging.DEBUG, 5:logging.FATAL} self.loger = logging.getLogger() self._logfile = logfile self.init() def init(self): if not os.path.exists(self._logfile): os.mknod(self._logfile) handler = logging.handlers.RotatingFileHandler(self._logfile) handler.setFormatter(MessageFormatter(color=True)) self._handler = handler self.loger.addHandler(handler) def INFO(self,msg,leve=1): self.loger.setLevel(self._LEVE[leve]) self.loger.info(msg) def WARNING(self, msg, leve=2): self.loger.setLevel(self._LEVE[leve]) self.loger.warning(msg) def ERROR(self, msg, leve=3): self.loger.setLevel(self._LEVE[leve]) self.loger.error(msg) def DEBUG(self, msg, leve=4): self.loger.setLevel(self._LEVE[leve]) self.loger.debug(msg) def FATAL(self, msg, leve=5): self.loger.setLevel(self._LEVE[leve]) self.loger.fatal(msg)
conf.py是一个配置文件，在log app同目录，里面配置了log文件目录。
import os SMARTCLOUD_LOGFILE='/yl/smartcloud/log/smartcloud.log'
3、测试
在log.py结果加上一段测试代码如下：
if __name__ == "__main__": LOG = MessageLog() str1 = "aaaaaaaa" str2 = "bbbbbbbbbb" LOG.INFO("#%s###################################" "@@@@%s@@@@@@@@@@@" %(str1,str2)) LOG.WARNING("####################################") LOG.ERROR("####################################") LOG.DEBUG("####################################") LOG.FATAL("####################################")
测试结果如下：
4、在view中使用
usage e.g: from log import MessageLog LOG = MessageLog('your log file by full path') or LOG = MessageLog() default logfile name is '/yl/smartcloud/log/smartcloud.log' LOG.INFO('some message') LOG.WARNING('some message') LOG.ERROR('some message') LOG.DEBUG('some message') LOG.FATAL('some message')
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