小問題解析

  今天練習中介軟體時 出現的小問題，分享一下，程式碼簡陋，湊合看吧

　　longgin 列印時 第一次列印一次日誌 第二次列印兩次日誌，逐次遞增 

from django.utils.deprecation import MiddlewareMixin
import logging
lis =[]

class Middlel(MiddlewareMixin):

    def process_request(self,request):
        lis.append(request.META)
        for i in lis:
            log 
 
= i['HTTP_USER_AGENT']

        logger = logging.getLogger()
        logger.setLevel(logging.INFO)
        fh = logging.FileHandler("1.log")
        fh.setLevel(logging.DEBUG)


        formatter = logging.Formatter("%(asctime)s - %(filename)s[line:%(lineno)d] "
                                      "
 
- %(levelname)s: %(message)s")
        fh.setFormatter(formatter)
        logger.addHandler(fh)
        logger.critical(log)

更改後的程式碼 

from django.utils.deprecation import MiddlewareMixin
import logging
lis =[]
logger = logging.getLogger()
logger.setLevel(logging.INFO)
fh 
 
= logging.FileHandler("1.log")
fh.setLevel(logging.DEBUG)
class Middlel(MiddlewareMixin):

    def process_request(self,request):
        lis.append(request.META)
        for i in lis:
            log = i['HTTP_USER_AGENT']


        formatter = logging.Formatter("%(asctime)s - %(filename)s[line:%(lineno)d] "
                                      "- %(levelname)s: %(message)s")
        fh.setFormatter(formatter)
        logger.addHandler(fh)
        logger.critical(log)

將 例項化個物件 設定物件等級  寫入那個檔案  寫入檔案時觸發的等級 四句話 挪到類上邊就行。