我在 django 中的 url 有问题，我有“找不到页面”

Question

我自己开始学习 Django，在理解 URL 和路径如何工作方面存在问题。

错误信息是：

找不到页面 (404)
请求方法：GET
请求网址：http://127.0.0.1:8000/question/1/
使用 not_bad.urls 中定义的 URLconf，Django 按以下顺序尝试了这些 URL 模式：
[名称='索引']
[名称='详细信息']
[名称='结果']
[名称='投票']
微三亚/
当前路径 question/1/ 与其中任何一个都不匹配。

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),
]

投票/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' ),
]

polls/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)

我有名为 index.html 和 answer.html 的文件，但我认为问题不在于它们。

Answer 1

您需要在urlpatterns 中提供路径。

例如：

/urls.py

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

投票/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' ),
]

在此示例中，您的应用的所有路径都将从 /question/ 开始，然后索引（精确）路径将被定向到 index 视图，/question/1/ 到 detail 视图等等。