Django 怎么使用session记录登陆信息

1、登陆校验成功后，将后续需要使用的数据记录到session里

def login(request):
    """
    登陆
    :param request:
    :return:
    """
    if request.method == 'GET':
        return render(request, 'login.html')
    elif request.method == 'POST':
        result = {'status': False, 'message': None, 'data': None}
        form = LoginForm(request=request, data=request.POST)
        if form.is_valid():
            username = form.cleaned_data.get('username')
            print(username)
            password = form.cleaned_data.get('password')
            print(password)
            user_info = models.UserInfo.objects. \
                filter(username=username, password=password). \
                values('nid', 'nickname',
                       'username', 'email',
                       'avatar',
                       'blog__nid',
                       'blog__site').first()
            if not user_info:
                result['message'] = '用户名或密码错误'
            else:
                result['status'] = True
                request.session['user_info'] = user_info #字典类型
                if form.cleaned_data.get('rmb'):
                    request.session.set_expiry(60 * 60 * 24 * 7)
        else:
            print(form.errors)
            if 'check_code' in form.errors:
                result['message'] = '验证码错误或者过期'
            else:
                result['message'] = '用户名或密码错误'
        return HttpResponse(json.dumps(result))

后续使用，直接取session数据（）如要在页面根据登陆状态取用户的名字之类的：

@check_login
def category(request):
    """
    博主个人分类管理
    :param request:
    :return:
    """
    #查询数据库表，将数据传给前端展示
    if request.method == 'GET':
        #通过ssession获取用户信息
        bid = request.session['user_info']['blog__nid']
        print(bid)
        categorylist = models.Category.objects.filter(blog_id=bid)
        print (categorylist)
        return render(request, 'backend_category.html',{'categorylist':categorylist})
    elif request.method == 'POST':
        return render(request, 'backend_category.html')