一.自定義認證方法

models.py

class Administrator(models.Model):
    username = models.CharField(max_length=32)
    password = models.CharField(max_length=32)

views.py

#登入函數 根據post請求拿到用戶信息，從數據庫驗證後將session的 is_login字段設置成True,並返回默認首頁
def login(request):
    message = ""
    v = request.session
    print(type(v))
    
 
from django.contrib.sessions.backends.db import SessionStore
    if request.method == "POST":
        user = request.POST.get(‘user‘)
        pwd = request.POST.get(‘pwd‘)

        c = models.Administrator.objects.filter(username=user, password=pwd).count()
        if c:
            request.session[
 
‘is_login‘] = True
            request.session[‘username‘] = user
            rep = redirect(‘/index.html‘)
            return rep
        else:
            message = "用戶名或密碼錯誤"
    obj = render(request,‘login.html‘, {‘msg‘: message})
    return obj
#註銷函數  清除session信息
def logout(request):
    request.session.clear()
    
 
return redirect(‘/login.html‘)

#驗證裝飾器
def auth(func):
    def inner(request, *args, **kwargs):
        is_login = request.session.get(‘is_login‘)
        if is_login:
            return func(request, *args, **kwargs)
        else:
            return redirect(‘/login.html‘)
    return inner

#進入首頁時需要驗證用戶是否登入
@auth   
def index(request):
    pass

二.Django自帶的登入

from django.views import View
from django.contrib.auth.mixins import LoginRequiredMixin
from  django.contrib import auth
from django.contrib.auth.decorators import login_required

def login(request):
    if request.method=="GET":
        error_msg="請登錄"
        return render(request,‘index/login.html‘,{"error_msg":error_msg})
    if request.method=="POST":
        username = request.POST.get("username", "")
        password = request.POST.get("password", "")
        #驗證用戶名密碼 
        user=auth.authenticate(username=username,password=password)    
        if user:
            #驗證後用戶登入
            auth.login(request,user)
            return render(‘index.html‘)
            # auth.logout()  用戶退出

#CBV 模式的認證  繼承系統的認證視圖
class index(LoginRequiredMixin,View):
     def get(request):
         pass

#FBV 模式的認證   django自帶的裝飾器
@login_required
def index(request):

    pass
        

登入認證