Django receive URL question mark parameter

Problem overview:

At the beginning, the requirement was to receive parameters through the URL, but it has always adhered to the way of receiving parameters through regular expressions, that is, in the form of (?P<parm>.+) .

Later, it was found that (/?) can be matched at http://regex101.com and successfully obtained the parameters. However, in Django, the symbol "?" is a reserved field, and this method failed.

Reference URL:

https://stackoverflow.com/questions/4162625/django-request-get-parameters

 

Solution:

【1】

Crawling the article found that  request.GET['keyname ' ]  or  request.GET.get( ' keyname ' , default_value)  can directly get the parameters in the URL

There is no need to match the regular expression of urls.

【2】

Of course, it can also be solved by try and except.

from django.utils.datastructures import MultiValueDictKeyError


try:
    key_you_want = request.GET['keyname']
except MultiValueDictKeyError:
    key_you_want = None

 

Finally, hee hee!