Django 怎么使用session記錄登陸信息

1、登陸校驗成功后，將后續需要使用的數據記錄到session里

def login(request):
    """
    登陸
    :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'] = '用戶名或密碼錯誤'
            else:
                result['status'] = True
                request.session['user_info'] = user_info #字典類型
                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'] = '驗證碼錯誤或者過期'
            else:
                result['message'] = '用戶名或密碼錯誤'
        return HttpResponse(json.dumps(result))

后續使用，直接取session數據（）如要在頁面根據登陸狀態取用戶的名字之類的：

@check_login
def category(request):
    """
    博主個人分類管理
    :param request:
    :return:
    """
    #查詢數據庫表，將數據傳給前端展示
    if request.method == 'GET':
        #通過ssession獲取用戶信息
        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')