django python server- error: imageSaved() 得到了一个意外的

Question

我在本地计算机上运行 python-django 服务器

使用 django.urls 我尝试定义一个包含文件夹和文件的服务器路径

我的代码：

urls.py:

from django.urls import path

urlpatterns = [

    path("", server.views.index, name="index"),

    path("imageSaved/<str:folder>/<str:picture>", server.views.imageSaved, name="imageSaved")

]

我也试试：

 path("imageSaved/<path:path>", server.views.imageSaved, name="imageSaved")

我得到了同样的错误。

imageSaved 功能来自 server.views：

def imageSaved(request):

    res=request.__str__()

    return HttpResponse(res)

因为路径是一个字符串，所以我这样定义它：<str:folder>/<str:picture>

当我写一个网址时：

http://localhost:5000/imageSaved/fff/ddd

我收到错误：

TypeError at /imageSaved/dd/dd

imageSaved() got an unexpected keyword argument 'folder'

   

回溯是：

Environment:

Request Method: GET

Request URL: http://localhost:5000/imageSaved/dd/dd

Django Version: 3.1rc1

Python Version: 3.8.5

Installed Applications:

['django.contrib.admin',

 'django.contrib.auth',

 'django.contrib.contenttypes',

 'django.contrib.sessions',

 'django.contrib.messages',

 'django.contrib.staticfiles',

 'server']

Installed Middleware:

('whitenoise.middleware.WhiteNoiseMiddleware',

 'django.middleware.security.SecurityMiddleware',

 'django.contrib.sessions.middleware.SessionMiddleware',

 'django.middleware.common.CommonMiddleware',

 'django.middleware.csrf.CsrfViewMiddleware',

 'django.contrib.auth.middleware.AuthenticationMiddleware',

 'django.contrib.messages.middleware.MessageMiddleware',

 'django.middleware.clickjacking.XFrameOptionsMiddleware')

Traceback (most recent call last):

  File "Local\Programs\Python\Python38\lib\site-packages\django-3.1rc1-py3.8.egg\django\core\handlers\exception.py", line 47, in inner

    response = get_response(request)

  File "Local\Programs\Python\Python38\lib\site-packages\django-3.1rc1-py3.8.egg\django\core\handlers\base.py", line 179, in _get_response

    response = wrapped_callback(request, *callback_args, **callback_kwargs)

Exception Type: TypeError at /imageSaved/dd/dd

Exception Value: imageSaved() got an unexpected keyword argument 'folder'

谢谢！！

Answer 1

错误很明显：您不支持 url 参数。视图函数将带有可选 URL 部分的请求转换为响应，因此它的签名是：def&nbsp;view_function(request,&nbsp;*args,&nbsp;**kwargs): &nbsp;&nbsp;&nbsp;&nbsp;...在你的情况下：def&nbsp;imageSaved(request,&nbsp;folder,&nbsp;picture): &nbsp;&nbsp;&nbsp;&nbsp;res=request.__str__()&nbsp;&nbsp;#&nbsp;This&nbsp;isn't&nbsp;useful,&nbsp;but&nbsp;probably&nbsp;for&nbsp;debugging &nbsp;&nbsp;&nbsp;&nbsp;return&nbsp;HttpResponse(res)