Django 2.0.4 URL路由失效求助：按官方教程配置仍无法解析

Hey there! The most likely missing piece here is that you haven't connected your polls app's URLconf to your main project's URL configuration (the incomplete whyitsnotworking/urls.py file you mentioned). Let's walk through exactly what you need to add:

Step 1: Update Your Main Project's URLs #

Open whyitsnotworking/urls.py and ensure it includes the polls app's URLs using Django's include function. Here's the complete setup you need:

from django.conf.urls import include, url
from django.contrib import admin

urlpatterns = [
    # Routes any URL starting with /polls/ to your polls app's URLconf
    url(r'^polls/', include('polls.urls')),
    url(r'^admin/', admin.site.urls),
]

The include() function tells Django to delegate all requests to URLs starting with /polls/ to the polls/urls.py file you already configured. Without this line, Django has no way to map incoming requests to your polls views.

Step 2: Double-Check These Quick Validation Points #

• Confirm your app is installed: Make sure polls is added to the INSTALLED_APPS list in whyitsnotworking/settings.py:

  INSTALLED_APPS = [
      'polls',  # This line is easy to miss!
      'django.contrib.admin',
      'django.contrib.auth',
      'django.contrib.contenttypes',
      'django.contrib.sessions',
      'django.contrib.messages',
      'django.contrib.staticfiles',
  ]
  

• Restart your dev server: Any changes to URL configuration files require restarting the Django development server to take effect.
• Verify your access URL: With the setup above, you need to visit http://localhost:8000/polls/ (not the root / URL) to see your "Hello, world" message. If you want the root URL to point directly to polls, you can adjust the main route to r'^' instead of r'^polls/'.

Once you make these adjustments, your URL routing should work as expected!

内容的提问来源于stack exchange，提问作者Dexter Lakin