URL :

from django.conf.urls import url
from app01 import views

urlpatterns = [
    url(r‘^login/‘, views.login),
    url(r‘^home/‘, views.home),
    url(r‘^index/‘, views.index),
]

前端 :

<form action="" method="post">
    {% csrf_token %}
    <input type="text" name="name">
    <input type="
 
password" name="pwd">
    <input type="submit">
</form>

Cookie視圖 :

from django.shortcuts import render,redirect,HttpResponse


#裝飾器
def login_required(fn):
    def inner(request, *args, **kwargs):
        if request.COOKIES.get("login") != "1":
            next = request.path_info    #
 
未登錄用戶訪問無權限的頁面, 獲取所訪問的url, 以便登陸後直接跳轉
            return redirect("/login/?next={}".format(next)) #將所獲取的url參數傳遞到登錄頁面的url上
        ret = fn(request, *args, **kwargs)
        return ret
    return inner

#登錄頁面
def login(request):
    if request.method == "POST":
        user = request.POST.get("name")
        pwd 
 
= request.POST.get("pwd")
        if user == "dong" and pwd == "dong":
            next = request.GET.get("next")  #在登陸頁面的url上獲取未登錄用戶訪問無權限頁面所傳遞的參數
            if next:    #如果有參數
                ret = redirect(next)
            else:   #沒有參數
                ret = redirect("/home/")    #沒有參數說明用戶未訪問無權限頁面,直接登錄
            ret.set_cookie("login", "1")
            return ret

    return render(request, "login.html")

@login_required
def home(request):
        return HttpResponse("home頁面")


@login_required
def index(request):
        return HttpResponse("index")

Session視圖 :

#裝飾器
def login_required(fn):
    def inner(request, *args, **kwargs):
        if request.Session.get("login") != "1":
            next = request.path_info    #未登錄用戶訪問無權限的頁面, 獲取所訪問的url, 以便登陸後直接跳轉
            return redirect("/login/?next={}".format(next)) #將所獲取的url參數傳遞到登錄頁面的url上
        ret = fn(request, *args, **kwargs)
        return ret
    return inner

#登錄頁面
def login(request):
    if request.method == "POST":
        user = request.POST.get("name")
        pwd = request.POST.get("pwd")
        if user == "dong" and pwd == "dong":
            request.session["login"] = "1"  #設置session,自動傳遞
            next = request.GET.get("next")  #在登陸頁面的url上獲取未登錄用戶訪問無權限頁面所傳遞的參數
            if next:    #如果有參數
                return redirect(next)
            else:   #沒有參數
                return redirect("/home/")    #沒有參數說明用戶未訪問無權限頁面,直接登錄
            # ret.set_cookie("login", "1")
            # return ret

    return render(request, "login.html")


@login_required
def home(request):
        return HttpResponse("home頁面")


@login_required
def index(request):
        return HttpResponse("index")

Cookie和Session版的登錄驗證