auth模块---笔记

1.auth模块的登录验证:

①只要登录的页面有用户名和密码就可以使用django提供的User表中的验证系统进行验证,可以把用户的账号和密码存到User对象表中,然后拿出来进行验证

1.from django.contrib import auth

2.def login(request):
    if request.method == "POST":
        username = request.POST.get("username")
        pwd = request.POST.get("password")
        # 如何判断用户名和密码对不对
        user = auth.authenticate(username=username, password=pwd)   #第一个是User表中的字段名                                                    #称,第二个是传进来参数名称
        if user:
            # 将登录的用户封装到request.user
            auth.login(request, user)
            return redirect("/index/")
    return render(request, "login.html")

3.def index(request):
     # 取出封装到request.user中的用户名信息,返回浏览器中user是字符串,而请求来时候中间件会把user从数
     #据库中取出来,转为一个对象
    print(request.user.username)
    print("=" * 120)
    return render(request, "index.html")

如下图所示为源码

image-20200622092433333

4.def logout(request):         # 清楚request.user中信息
    auth.logout(request)
    return redirect("/login/")

5.from django.contrib.auth.decorators import login_required

@login_required            # 如果没有登录,默认跳转到那个URL,在setting中配置
                            #LOGIN_URL = "/login/",否则执行index函数体中代码
def index(request):
    print(request.user.username)
    print("=" * 120)
    ret = request.user.is_authenticated()
    print(ret)
    return render(request, "index.html")

2.User对象:

1.ret = user.is_authenticated()     # 判断是否验证过了

2.def register(request):
    from django.contrib.auth.models import User
    User.objects.create(username="alex", password="alexdsb")  #这个写法错误,以明文存入表,但是                                        #登录时候要进行转换,因此匹配不上密码
3.user_obj = User.objects.create_user(username="alex5", password="alexdsb")
    # 校验密码是否正确
    ret = user_obj.check_password("alex1234")
4.   user_obj.set_password("alex3714")     #修改密码
    user_obj.save()

3.如何扩展自带的auth_user表:

1.from django.contrib.auth.models import User

class UserDetail(models.Model):
    phone = models.CharField(max_length=11)
    user = models.OneToOneField(to=User)
    
2.from django.contrib.auth.models import User, AbstractUser

class UserInfo(AbstractUser):
    phone = models.CharField(max_length=11)
    addr = models.CharField(max_length=128)
posted @ 2020-06-22 10:42  小凡2019  阅读(124)  评论(0编辑  收藏  举报