我在 django 中遇到 url 问题，并且出现“找不到页面”

如何解决我在 django 中遇到 url 问题，并且出现“找不到页面”

我自己开始学习 Django，在理解 URL 和路径的工作原理方面存在问题。

错误信息是：

找不到页面 (404)
请求方式：GET
请求网址：http://127.0.0.1:8000/question/1/
使用 not_bad.urls 中定义的 URLconf，Django 尝试了这些 URL 模式，顺序如下：
[名称='索引']
[名称='详细信息']
[名称='结果']
[姓名='投票']
microsanya/
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),]

polls/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'),views.results,name='results'),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,{"latest_questions": Question.objects.order_by('-pub_date')[:5],"message": "Nice! Choose another one!"})
        else:
            return render(request,'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，但我认为问题不在其中。

解决方法

您需要在 urlpatterns 中提供路径。

例如：

/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' ),]

在本例中，您的应用程序的所有路径都将从 /question/ 开始，然后索引（确切）路径将被定向到 index 视图，/question/1/ 到 {{1} } 查看等等。