如何解决Django错误“找不到页面”？

问题描述

亲爱的，你好。我是django的新手。我正在尝试使用django创建博客，但是现在每当我单击链接时，都在页面未找到错误困扰。 127.0.0.1:8000/post.html返回错误页面。请帮助我。

下面是我的代码。

这是我的 views.py 文件：

from django.db.models import Count,Q
from django.contrib import messages
from django.core.paginator import Paginator,EmptyPage,PageNotAnInteger
from django.shortcuts import render,get_object_or_404,redirect,reverse
from django.views.generic
import View,ListView,DetailView,CreateView,UpdateView,DeleteView
from .forms import CommentForm,PostForm
from .models import Post,Author,PostView
from marketing.forms import EmailSignupForm
from marketing.models import Signup
 
form = EmailSignupForm()


def get_author(user):
    qs = Author.objects.filter(user=user)
    if qs.exists():
       return qs[0]
       return None
 
 
class SearchView(View):
    def get(self,request,*args,**kwargs):
        queryset = Post.objects.all()
        query = request.GET.get('q')
        if query:
            queryset = queryset.filter(
            Q(title__icontains=query) | Q(overview__icontains=query)
            ).distinct()
            context = {
              'queryset': queryset
            }
            return render(request,'search_results.html',context)
 
 
    def search(request):
        queryset = Post.objects.all()
        query = request.GET.get('q')
        if query:
            queryset = queryset.filter(Q(title__icontains=query) | Q(overview__icontains=query)).distinct()
        context = {
            'queryset': queryset
        }
        return render(request,context)
 
 
    def get_category_count():
        queryset = Post.objects.values('categories__title').annotate(Count('categories__title'))
        return queryset
 
 
class IndexView(View):
    form = EmailSignupForm()

    def get(self,**kwargs):
        featured = Post.objects.filter(featured=True)
        latest = Post.objects.order_by('-timestamp')[0:3]
        context = {
            'object_list': featured,'latest': latest,'form': self.form
        }
        return render(request,'index.html',context)

    def post(self,**kwargs):
        email = request.POST.get("email")
        new_signup = Signup()
        new_signup.email = email
        new_signup.save()
        messages.info(request,"Successfully subscribed")
        return redirect("home")

 
def index(request):
    featured = Post.objects.filter(featured=True)
    latest = Post.objects.order_by('-timestamp')[0:3]

    if request.method == "POST":
        email = request.POST["email"]
        new_signup = Signup()
        new_signup.email = email
        new_signup.save()

        context = {
           'object_list': featured,'form': form
        }
        return render(request,context)

 
class PostListView(ListView):
    form = EmailSignupForm()
    model = Post
    template_name = 'blog.html'
    context_object_name = 'queryset'
    paginate_by = 1

    def get_context_data(self,**kwargs):
        category_count = get_category_count()
        most_recent = Post.objects.order_by('-timestamp')[:3]
        context = super().get_context_data(**kwargs)
        context['most_recent'] = most_recent
        context['page_request_var'] = "page"
        context['category_count'] = category_count
        context['form'] = self.form
        return context


    def post_list(request):
        category_count = get_category_count()
        most_recent = Post.objects.order_by('-timestamp')[:3]
        post_list = Post.objects.all()
        paginator = Paginator(post_list,4)
        page_request_var = 'page'
        page = request.GET.get(page_request_var)
        try:
            paginated_queryset = paginator.page(page)
        except PageNotAnInteger:
            paginated_queryset = paginator.page(1)
        except EmptyPage:
            paginated_queryset = paginator.page(paginator.num_pages)

       context = {
           'queryset': paginated_queryset,'most_recent': most_recent,'page_request_var': page_request_var,'category_count': category_count,'form': form
       }
       return render(request,'blog.html',context)

 
class PostDetailView(DetailView):
    model = Post
    template_name = 'post.html'
    context_object_name = 'post'
    form = CommentForm()

    def get_object(self):
        obj = super().get_object()
        if self.request.user.is_authenticated:
           PostView.objects.get_or_create(
           user=self.request.user,post=obj)
           return obj
     

    def get_context_data(self,**kwargs):
        category_count = get_category_count()
        most_recent = Post.objects.order_by('-timestamp')[:3]
        context = super().get_context_data(**kwargs)
        context['most_recent'] = most_recent
        context['page_request_var'] = "page"
        context['category_count'] = category_count
        context['form'] = self.form
        return context

    def post(self,**kwargs):
        form = CommentForm(request.POST)
        if form.is_valid():
            post = self.get_object()
            form.instance.user = request.user
            form.instance.post = post
            form.save()
        return redirect(reverse("post-detail",kwargs={'pk': post.pk}))

 
    def post_detail(request,id):
        category_count = get_category_count()
        most_recent = Post.objects.order_by('-timestamp')[:3]
        post = get_object_or_404(Post,id=id)

        if request.user.is_authenticated:
            PostView.objects.get_or_create(user=request.user,post=post)

        form = CommentForm(request.POST or None)
        if request.method == "POST":
            if form.is_valid():
            form.instance.user = request.user
            form.instance.post = post
            form.save()
            return redirect(reverse("post-detail",kwargs={'id': post.pk}))
        context = {
            'post': post,'post.html',context)
 
 
    class PostCreateView(CreateView):
        model = Post
        template_name = 'post_create.html'
        form_class = PostForm

    def get_context_data(self,**kwargs):
        context = super().get_context_data(**kwargs)
        context['title'] = 'Create'
        return context

    def form_valid(self,form):
        form.instance.author = get_author(self.request.user)
        form.save()
        return redirect(reverse("post-detail",kwargs={'pk': form.instance.pk}))


    def post_create(request):
        title = 'Create'
        form = PostForm(request.POST or None,request.FILES or None)
        author = get_author(request.user)
    if request.method == "POST":
        if form.is_valid():
            form.instance.author = author
            form.save()
            return redirect(reverse("post-detail",kwargs={'id': form.instance.id}))
        context = {
            'title': title,"post_create.html",context)

这是我的 post.html 文件：

{% extends 'base.html' %} {% load static %}

{% block content %}

<style>
    .post-body img {
        width: 100%;   
    }
</style>

<div class="container">
    <div class="row">
        <!-- Latest Posts -->
        <main class="post blog-post col-lg-8"> 
            <div class="container">
                <div class="post-single">
                    <div class="post-thumbnail"><img src="{{ post.thumbnail.url }}" alt="..." class="img-fluid"></div>
                    <div class="post-details">
                        <div class="post-Meta d-flex justify-content-between">
                            <div class="category">
                                {% for cat in post.categories.all %}
                                <a href="#">{{ cat }}</a>
                                {% endfor %}
                            </div>
                            <div>
                                <a href="{% url 'post-update' pk=post.pk %}">Update</a>
                                <a href="{% url 'post-delete' pk=post.pk %}">Delete</a>
                            </div>
                        </div>
                        <h1>{{ post.title }}<a href="#"><i class="fa fa-bookmark-o"></i></a></h1>
                        <div class="post-footer d-flex align-items-center flex-column flex-sm-row"><a href="#" class="author d-flex
                            align-items-center flex-wrap">
                            <div class="avatar"><img src="{{ post.author.profile_picture.url }}" alt="..." class="img-fluid"></div>
                            <div class="title"><span>{{ post.author.user.username }}</span></div></a>
                            <div class="d-flex align-items-center flex-wrap">       
                                <div class="date"><i class="icon-clock"></i> {{ post.timestamp|timesince }} ago</div>
                                <div class="views"><i class="icon-eye"></i> {{ post.view_count }}</div>
                                <div class="comments Meta-last"><i class="icon-comment"></i>{{ post.comment_count }}</div>
                            </div>
                        </div>
                        <div class="post-body">
                            {{ post.content | safe }}
                        </div>
                        <div class="posts-nav d-flex justify-content-between align-items-stretch flex-column flex-md-row">
                            {% if post.prevIoUs_post %}
                            <a href="{{ post.prevIoUs_post.get_absolute_url }}" class="prev-post text-left d-flex align-items-center">
                                <div class="icon prev"><i class="fa fa-angle-left"></i></div>
                                <div class="text"><strong class="text-primary">PrevIoUs Post </strong>
                                    <h6>{{ post.prevIoUs_post.title }}</h6>
                                </div>
                            </a>
                            {% endif %}
                            {% if post.next_post %}
                            <a href="{{ post.next_post.get_absolute_url }}" class="next-post text-right d-flex align-items-center
                            justify-content-end">
                            <div class="text"><strong class="text-primary">Next Post </strong>
                                <h6>{{ post.next_post.title }}</h6>
                            </div>
                            <div class="icon next"><i class="fa fa-angle-right">   </i></div>
                        </a>
                        {% endif %}
                    </div>
                    <div class="post-comments">
                        <header>
                            <h3 class="h6">Post Comments<span class="no-of-comments">({{ post.comments.count }})</span></h3>
                        </header>
                        {% for comment in post.get_comments %}
                        <div class="comment">
                            <div class="comment-header d-flex justify-content-between">
                                <div class="user d-flex align-items-center">
                                    <div class="image">
                                        {% if comment.user.author %}
                                        <img src="{{ comment.user.author.profile_picture.url }}" alt="..." class="img-fluid
                                        rounded-circle">
                                        {% else %}
                                        <img src="{% static 'img/user.svg' %}" alt="..." class="img-fluid rounded-circle">
                                        {% endif %}
                                    </div>
                                    <div class="title"><strong>{{ comment.user.username }}</strong><span class="date">{{
                                    comment.timestamp|timesince }} ago</span></div>
                                </div>
                            </div>
                            <div class="comment-body">
                                <p>{{ comment.content }}</p>
                            </div>
                        </div>
                        {% endfor %}
                    </div>
                    {% if request.user.is_authenticated %}
                    <div class="add-comment">
                        <header>
                            <h3 class="h6">Leave a reply</h3>
                        </header>
                        <form method="POST" action="." class="commenting-form">
                            {% csrf_token %}
                            <div class="row">
                                <div class="form-group col-md-12">
                                    {{ form }}
                                </div>
                                <div class="form-group col-md-12">
                                    <button type="submit" class="btn btn-secondary">Submit Comment</button>
                                </div>
                            </div>
                        </form>
                    </div>
                    {% else %}
                    <a href="{% url 'account_login' %}" class="btn btn-primary">Login to comment</a>
                    {% endif %}
                </div>
            </div>
        </div>
    </main>
    {% include 'sidebar.html' with most_recent=most_recent category_count=category_count %}        
</div>
</div>
{% endblock content %}

这是我的 urls.py 文件：

from django.conf import settings
from django.conf.urls.static import static
from django.contrib import admin
from django.urls import path,include

from posts.views import (
   index,search,post_list,post_detail,post_create,post_update,post_delete,IndexView,PostListView,PostDetailView,PostCreateView,PostUpdateView,PostDeleteView
   )
from marketing.views import email_list_signup

urlpatterns = [
   path('admin/',admin.site.urls),path('',IndexView.as_view(),name='home'),path('blog/',PostListView.as_view(),name='post-list'),path('search/',name='search'),path('email-signup/',email_list_signup,name='email-list-signup'),path('create/',PostCreateView.as_view(),name='post-create'),path('post/<pk>/',PostDetailView.as_view(),name='post-detail'),path('post/<pk>/update/',PostUpdateView.as_view(),name='post-update'),path('post/<pk>/delete/',PostDeleteView.as_view(),name='post-delete'),path('tinymce/',include('tinymce.urls')),path('accounts/',include('allauth.urls'))
]

if settings.DEBUG:
   urlpatterns += static(settings.STATIC_URL,document_root=settings.STATIC_ROOT)
   urlpatterns += static(settings.MEDIA_URL,document_root=settings.MEDIA_ROOT)

解决方法

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