django 登陆验证

 a 在views中导入

from django.contrib.auth.decorators import login_required

@login_required()

b 在views 导入

from django.contrib.auth import authenticate

def login_mlj(request):
    if request.method =="POST":
        user=authenticate(username=request.POST["username"],
                          password=request.POST["password"]
                          )
        if user is not None:
            login(request,user)
            print( request.POST)
            return redirect('/app1/index')


    return render(request,"login.html")


c 显示用户名

{% if request.user.is_authenticated %}
{{ request.user }}
 {% endif %}

d 退出 

from django.contrib.auth import authenticate,login,logout、
 logout(request)