Brother, take a look at it

is your request body request.POST always empty? It is recommended that the front end pass a fixed parameter. If this is the case, the request information may not be in the request.POST. Add the request header information "Content-type": "application/x-www-form-urlencoded"

it is recommended to debug problems with IDE. If the browser reports no error, the request is successful, and not all the data requested by ajax is obtained through request.POST.

enter a fixed request header in the header parameter of ajax, such as