Django

Question

我很困惑为什么 URL 调度程序试图寻找一个空路径，尽管为它指定了 url？这是否意味着它无法找到指定的 url 并因此尝试找到默认值。

当我尝试 POST 并且 HttpResponseRedirect 搜索空路径而不是遵循指定路径时会发生这种情况。假设对方.

使用 Django 版本：2.0

提前致谢！

main/urls.py (ROOT_URLCONF)

from django.contrib import admin
from django.urls import path, include

urlpatterns = [
   path('admin/', admin.site.urls),
   path('app/', include('shorterner.urls'))
]

shorterner/urls.py

from django.urls import path
from . import views

urlpatterns = [
  path('request/', views.RequestView.as_view(), name="request"),
  path('list/', views.IndexView.as_view(), name="list")
]

shorterner/views.py

from django.shortcuts import render, redirect
from django.http import HttpResponseRedirect
from django.conf import settings
from django.urls import reverse
from django.views import View, generic
from .models import Urls

import requests
import json

from .forms import SubmitUrlForm

class RequestView(View):
  form_class = SubmitUrlForm
  initial = { 'url': ''}
  template_name = "shorterner/request.html"
  context_object_name = 'url'

  def form_valid(self, form):
    return super().form_valid(form)

  def get(self, request, *args, **kwargs):
    form = self.form_class(initial=self.initial)
    return render(request, self.template_name, {'form': form})

  def post(self, request, *args, **kwargs):
    form = self.form_class(request.POST)
    if form.is_valid():
      input_url = form.cleaned_data['url']
      short_url = google_url_shorten(input_url)

      print(input_url)
      print(short_url)

      new_url = Urls.create(short_url, input_url)
      new_url.save()

      return HttpResponseRedirect('/app/request/')
    return render(request, self.template_name, {'form': form})

shorterner/templates/shorterner/request.html

{% extends 'shorterner/base.html' %}

{% block content %}

    <form action="/" method="POST">
      {% csrf_token %}
      <input type="text" name="url" placeholder="Url..." required/>        
      <input type="submit" value="Submit"/>
    </form>

{% endblock %}

问题截图 Error Page

Answer 1

您似乎正在将表单数据发送到此路径 /。但是您没有在 main/urls.py.

中定义该路线

Django - Url 调度 - 找不到页面

Django - Url Dispatching - Page Not Found

django-urls

python-3.x