cookies and session

Set our cookies

def set_cookies(request):

　　Get the information sent by the postman

　　request refers to a request for information http

　　GET method is to get in the way we get the request data

　　The latter name is our key value inside the distal end, in front of the name is the variable in the received data we django

　　name=request.GET.get('name')

　　Http assigned to instantiate a coo

　　coo = HttpResponse ( 'I set operation cookies')

　　Set cookies

　　coo.set_cookies('cooke_name',name)

　　return coo

　　Get our cookies

def get_cookies(request):

　　The front end to get the information we pass over

　　request refers to information http request

　　doing=request.GET.get('doing')　

　　COOKIES is the way we get the data in the manner requested

　　name=request.COOKIES.get('cooke_name')

　　cooke_name we django which variables receive data

　　return HttpResponse(name+doing)　

 

 

Set session

def set_session(request):

　　name=request.GET.get('name')

　　Obtaining session

　　request.session['session_name']=name

　　return HttpResponse ( 'This is a process of setting the session')

 

def get_session(request):

　　doing=request.GET.get('doing')

　　name=request.session.get('session_name')

　　return HttpResponse(name+doing)

 

 

cookies, session role : to maintain user state, telling the server who you are.

 

The difference migrate command and makemigrations : makemigrations generate migration file, migrate to perform the migration file

 

cookies : to consider important information in the cookies are put at each exchange

1. Setting the cookie :

Get value

Set to cookies

Returning to the front

2. Inspection cookies

 

cookies, session action holding state of the user:

 

orm: python operation of the database environment

Advantages : improved, reducing the learning curve programmers

Disadvantage : very slow execution rate

 

The contents of the database written in models.py

 

Generate migrate files: python manage.py makemigrations

 

get and post similarities and differences:

Transfer methods : get transmitted through the address bar, it is transmitted in clear text, insecurity, post packet transmission. Security is relatively high.

Transport length: get parameters length limit (limited by the url length), and post unlimited

GET and there is a significant difference between the POST, simply say:

GET generates a TCP packet; generating the POST two TCP packets