django 当前路径，不匹配任何这些

Question

i want to try another apps in django but i got problem when access another apps.

Page not found

tree:

main:

search:

• index.html
• scrape.html

preprocessing:

• index.html

the scenario like this. from scrape.html i want to access index.html in preprocessing but got an error path not found. I've done to add apps in settings.py

main url.py

urlpatterns = [
    path('admin/', admin.site.urls),
    path('', include('search.urls')),
    path('preprocessing/', include('preprocessing.urls')),
]

search url.py

urlpatterns = [
    path('', views.index,),
    path('scrape/',views.scrape,),
 
]

slice of scrape.html:

 <a href = "/preprocessing" button type="button" class="btn btn-primary" target = "blank">Preprocessing</a>

preprocessing url.py

path('', views.index),

let me know where did I go wrong, thx for your help

Answer 1

Your anchor tag is written as:

<a href = "/preprocessing" ...>

The problem here is that your url pattern is like 'preprocessing/' , notice that it ends in a trailing slash while your anchors url doesn't. Furthermore in your settings you set APPEND_SLASH = False .

Normally when Django finds a url not ending in a trailing slash it appends a slash to it and redirects the user to this new url. But you have stopped this behaviour by setting APPEND_SLASH = False . As the first step I would advice you to change this back to APPEND_SLASH = True .

Next you should always name your urls and use those names to refer to the urls. So your urlpatterns should be:

main url.py

urlpatterns = [
    path('admin/', admin.site.urls),
    path('', include('search.urls')),
    path('preprocessing/', include('preprocessing.urls')),
]

search url.py

urlpatterns = [
    path('', views.index, name='index'),
    path('scrape/',views.scrape, name='scrape'),
 
]

preprocessing url.py

path('', views.index, name='preprocessing'),

Now in your templates you would simply use the url template tag :

<a href="{% url 'preprocessing' %}" button type="button" class="btn btn-primary" target = "blank">Preprocessing</a>