我对 django 中的网址有问题，我有"Page not found"

Question

我自己开始学习Django，在理解url和路径的工作方式方面有一个问题。

错误信息是:

Page not found (404)
Request Method: GET
Request URL:http://127.0.0.1:8000/question/1/
使用not_bad中定义的URLconf。
[name='index']
[name='detail']
[name='results']
[name='vote']
micro三亚/
当前路径question/1/不匹配。

在项目文件中我有这个代码:

not_bad urls . py:

from django.contrib import admin
from django.urls import include
from django.urls import path
urlpatterns = [
path('', include('polls.urls')),
path('microsanya/', admin.site.urls),
]

民意调查/urls . py:

from django.urls import include, path
from . import views
app_name = 'polls'
urlpatterns = [
path('', views.index, name='index'),
path('', views.detail, name='detail'),
path('', views.results, name='results'),
path('', views.vote, name='vote' ),
]

民意调查/views.py

from django.http import HttpResponse
from django.shortcuts import get_object_or_404, render
from django.shortcuts import redirect
from django.shortcuts import render
from django.http import Http404
from . models import Question, Choice

def index(request):
question = Question.objects.all()
return render(request, "index.html", {"latest_questions": Question.objects.order_by('-pub_date')[:5]})

def detail(request, question_id):
def detail(request, question_id):
try:
question = Question.objects.get(pk=question_id)
except Question.DoesNotExist:
raise Http404
return render(request, 'polls/answer.html', {'question': question})

def answer(request, question_id):
question = get_object_or_404(Question, pk=question_id)
try:
question = question.question_set.get(pk=request.POST['question'])
except (KeyError, Question.DoesNotExist):
return render(request, 'answer.html', {'question': question, 'error_message': 'Question does not exist'})
else:
if question.correct:
return render(request, "index.html", {"latest_questions": Question.objects.order_by('-pub_date')[:5], "message": "Nice! Choose another one!"})
else:
return render(request, 'answer.html', {'question': question, 'error_message': 'Wrong Answer!'})
def results(request, question_id):
response = "You're looking at the results of question %s."
return HttpResponse(response % question_id)
def vote(request, question_id):
return HttpResponse("You're voting on question %s." % question_id)

我有一个名为index.html和answer.html的文件，但我不认为问题出在它们上面。

Answer 1

您需要在urlpatterns中提供路径。

例如:

& lt; project_name>urls . py

urlpatterns = [
path('question/', include('polls.urls')),
# ...
]

民意调查/urls . py

app_name = 'polls'
urlpatterns = [
path('', views.index, name='index'),
path('<int:question_id>/', views.detail, name='detail'),
path('<int:question_id>/results/', views.results, name='results'),
path('<int:question_id>/vote/', views.vote, name='vote' ),
]

在这个例子中，你的应用程序的所有路径将从/question/开始，然后索引(确切)路径将指向index视图，/question/1/到detail视图，等等。