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logging.config --- 日志记录配置 — Python 3.8.13 文档
根据大江狗的配置是没有错的，但仍然有很多需要注意和提醒的地方
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邮箱配置，在?django?的日志的邮箱配置中，用得是?SERVER_EMAIL?作为?from_email，而这个?SERVER_EMAIL?默认是?root@localhost?可能早期，qq?邮箱没有严格限制这个这个邮箱的真实性，后来才加的规则，所以这里要是一个正常格式的邮箱号即可，网站给的必须是<xxx@qq.com>?必须带尖括号格式是没有依据的，可以从源码中得出
#?django?官方给的send_email?函数from_email参数是个普通的邮箱
from?django.core.mail?import?send_mail
send_mail(
????'Subject?here',
????'Here?is?the?message.',
????'from@example.com',
????['to@example.com'],
????fail_silently=False,
)
#?错误邮件拼接的类中from_email取的内容
def?mail_admins(subject,?message,?fail_silently=False,?connection=None,
????????????????html_message=None):
????"""Send?a?message?to?the?admins,?as?defined?by?the?ADMINS?setting."""
????if?not?settings.ADMINS:
????????return
????if?not?all(isinstance(a,?(list,?tuple))?and?len(a)?==?2?for?a?in?settings.ADMINS):
????????raise?ValueError('The?ADMINS?setting?must?be?a?list?of?2-tuples.')
????mail?=?EmailMultiAlternatives(
????????'%s%s'?%?(settings.EMAIL_SUBJECT_PREFIX,?subject),?message,
?????? #?这里就是获取SERVER_EMAIL?导致获取的是root@localhost错误格式
????????settings.SERVER_EMAIL,?[a[1]?for?a?in?settings.ADMINS],
????????connection=connection,
????)
????if?html_message:
????????mail.attach_alternative(html_message,?'text/html')
????mail.send(fail_silently=fail_silently)
#?邮件格式对象init函数
class?EmailMultiAlternatives(EmailMessage):
????"""
????A?version?of?EmailMessage?that?makes?it?easy?to?send?multipart/alternative
????messages.?For?example,?including?text?and?HTML?versions?of?the?text?is
????made?easier.
????"""
????alternative_subtype?=?'alternative'
????def?__init__(self,?subject='',?body='',?from_email=None,?to=None,?bcc=None,
?????????????????connection=None,?attachments=None,?headers=None,?alternatives=None,
?????????????????cc=None,?reply_to=None):
????????"""
????????Initialize?a?single?email?message?(which?can?be?sent?to?multiple
????????recipients).
????????"""
????????super().__init__(
????????????subject,?body,?from_email,?to,?bcc,?connection,?attachments,
????????????headers,?cc,?reply_to,
????????)
????????self.alternatives?=?alternatives?or?[]日志发送邮箱的配置
EMAIL_BACKEND?=?'django.core.mail.backends.smtp.EmailBackend'
#?https://docs.djangoproject.com/en/dev/ref/settings/#email-host
EMAIL_HOST?=?'smtp.qq.com'
#?https://docs.djangoproject.com/en/dev/ref/settings/#email-port
EMAIL_USE_SSL?=?True
EMAIL_PORT?=?465
EMAIL_HOST_USER?=?'xxx@qq.com'
EMAIL_HOST_PASSWORD?=?'xxxx'
DEFAULT_FROM_EMAIL?=?'xxxx@qq.com'
SERVER_EMAIL?=?"xxxx@qq.com"
#?下面是给Django?log?使用的
ADMINS?=?(
??#?这个从上面的源码必须这样配置第一个是人名，第二个是邮箱号
?('wangsen','xxxx@sina.com'),?
)
MANAGERS?=?ADMINS日志配置讲解
#?Django?日志配置
LOG_DIR?=?os.path.join(BASE_DIR,?"logs")
if?not?os.path.exists(LOG_DIR):
????os.mkdir(LOG_DIR)
LOGGING?=?{
????"version":?1,
????"disable_existing_loggers":?False,??#?禁用已经存在的logger实例
?? #?python?官方日志对filters略带讲了一下，但可以从对其他的东西的讲解知道
?? #?()?这个key为一个特殊的key，意思是后面跟的是一个自定义的python类
????"filters":?{"require_debug_false":?{"()":?"django.utils.log.RequireDebugFalse"}},?#?()?是一个保留key?标识用户自定义过滤
????"formatters":?{??#?定义了两种日志格式
????????"verbose":?{??#?详细
????????????"format":?"%(levelname)s?%(asctime)s?%(module)s?"
??????????????????????"%(process)d?%(thread)d?%(message)s"
????????},
????????'simple':?{??#?简单
????????????'format':?'[%(levelname)s][%(asctime)s][%(filename)s:%(lineno)d]%(message)s'
????????},
????},
????"handlers":?{??#?定义了三种日志处理方式
????????"mail_admins":?{??#?只有debug=False且Error级别以上发邮件给admin
????????????"level":?"ERROR",
????????????"filters":?["require_debug_false"],
????????????"class":?"django.utils.log.AdminEmailHandler",
????????},
????????'file':?{??#?对INFO级别以上信息以日志文件形式保存
????????????'level':?"INFO",
????????????'class':?'logging.handlers.RotatingFileHandler',??#?滚动生成日志，切割
????????????'filename':?os.path.join(LOG_DIR,?'django.log'),??#?日志文件名
????????????'maxBytes':?1024?*?1024?*?10,??#?单个日志文件最大为10M
????????????'backupCount':?5,??#?日志备份文件最大数量
????????????'formatter':?'simple',??#?简单格式
????????????'encoding':?'utf-8',??#?放置中文乱码
????????},
????????"console":?{??#?打印到终端console
????????????"level":?"DEBUG",
????????????"class":?"logging.StreamHandler",
????????????"formatter":?"verbose",
????????},
????},
????"root":?{"level":?"INFO",?"handlers":?["file"]},
????"loggers":?{
????????"django.request":?{??#?Django的request发生error会自动记录
????????????"handlers":?["mail_admins"],
????????????"level":?"ERROR",
????????????"propagate":?True,??#?向不向更高级别的logger传递
????????},
????????"apps.blog":?{"level":?"DEBUG",?"handlers":?["console",?"file",?"mail_admins"]},
????},
}
#?filter?类源码
class?RequireDebugFalse(logging.Filter):
????def?filter(self,?record):
????????return?not?settings.DEBUGpython?日志的?root?和?loggers?是父子之间的关系
也即使用时，可以根据你包名来配置?loggers?的归属关系，可以选择是否冒泡?propagate，这个挺有意思的
日志的使用
import?logging
#?__name__?你还可以这样配置"apps.blog"
#?等价于Yii日志体系中的category?可以按类别进行过滤和收集
logger?=?logging.getLogger(__name__)
