python - 使用渲染时如何修复 TemplateDoesNotExist 错误?
问题描述
我开始学习如何使用 Django。我添加了一个模板文件夹:flavo\templates\flavo
其中包含两个文件:index0.html
和greet.html
. 但我不断得到TemplateDoesNotExist
所有页面。
这是我的views.py:
from django.http import HttpResponse
from django.shortcuts import render
def index0(request):
return render(request, "flavo/index0.html")
def greet1(request, name):
return render(request, "flavo/greet.html", {
"name": name.capitalize()
})
和我的url.py
from django.urls import path
from . import views
urlpatterns = [
path("", views.index0, name="index0"),
path("<str:name>", views.greet1, name="greet"),
]
在根文件夹中,我有以下内容url.py
:
from django.contrib import admin
from django.urls import include, path
urlpatterns = [
path('admin/', admin.site.urls),
path('flavo/', include("flavo.urls")),
]
这是我得到的错误:
Environment:
Request Method: GET
Request URL: http://127.0.0.1:8000/flavo/
Django Version: 3.2.3
Python Version: 3.9.5
Installed Applications:
['django.contrib.admin',
'django.contrib.auth',
'django.contrib.contenttypes',
'django.contrib.sessions',
'django.contrib.messages',
'django.contrib.staticfiles']
Installed Middleware:
['django.middleware.security.SecurityMiddleware',
'django.contrib.sessions.middleware.SessionMiddleware',
'django.middleware.common.CommonMiddleware',
'django.middleware.csrf.CsrfViewMiddleware',
'django.contrib.auth.middleware.AuthenticationMiddleware',
'django.contrib.messages.middleware.MessageMiddleware',
'django.middleware.clickjacking.XFrameOptionsMiddleware']
Template loader postmortem
Django tried loading these templates, in this order:
Using engine django:
* django.template.loaders.app_directories.Loader: C:\Users\kaij\AppData\Local\Programs\Python\Python39\lib\site-packages\django\contrib\admin\templates\flavo\index0.html (Source does not exist)
* django.template.loaders.app_directories.Loader: C:\Users\kaij\AppData\Local\Programs\Python\Python39\lib\site-packages\django\contrib\auth\templates\flavo\index0.html (Source does not exist)
Traceback (most recent call last):
File "C:\Users\kaij\AppData\Local\Programs\Python\Python39\lib\site-packages\django\core\handlers\exception.py", line 47, in inner
response = get_response(request)
File "C:\Users\kaij\AppData\Local\Programs\Python\Python39\lib\site-packages\django\core\handlers\base.py", line 181, in _get_response
response = wrapped_callback(request, *callback_args, **callback_kwargs)
File "C:\Users\kaij\Documents\testDjango\flavo\views.py", line 8, in index0
return render(request, "flavo/index0.html")
File "C:\Users\kaij\AppData\Local\Programs\Python\Python39\lib\site-packages\django\shortcuts.py", line 19, in render
content = loader.render_to_string(template_name, context, request, using=using)
File "C:\Users\kaij\AppData\Local\Programs\Python\Python39\lib\site-packages\django\template\loader.py", line 61, in render_to_string
template = get_template(template_name, using=using)
File "C:\Users\kaij\AppData\Local\Programs\Python\Python39\lib\site-packages\django\template\loader.py", line 19, in get_template
raise TemplateDoesNotExist(template_name, chain=chain)
Exception Type: TemplateDoesNotExist at /flavo/
Exception Value: flavo/index0.html
不明白为什么它说模板不存在,当它在文件夹中时flavo\templates\flavo
我的 settings.py 文件也在下面:
"""
Django settings for testDjango project.
Generated by 'django-admin startproject' using Django 3.2.3.
For more information on this file, see
https://docs.djangoproject.com/en/3.2/topics/settings/
For the full list of settings and their values, see
https://docs.djangoproject.com/en/3.2/ref/settings/
"""
from pathlib import Path
BASE_DIR = Path(__file__).resolve().parent.parent
SECRET_KEY = # 'removed'
DEBUG = True
ALLOWED_HOSTS = []
INSTALLED_APPS = [
'django.contrib.admin',
'django.contrib.auth',
'django.contrib.contenttypes',
'django.contrib.sessions',
'django.contrib.messages',
'django.contrib.staticfiles',
]
MIDDLEWARE = [
'django.middleware.security.SecurityMiddleware',
'django.contrib.sessions.middleware.SessionMiddleware',
'django.middleware.common.CommonMiddleware',
'django.middleware.csrf.CsrfViewMiddleware',
'django.contrib.auth.middleware.AuthenticationMiddleware',
'django.contrib.messages.middleware.MessageMiddleware',
'django.middleware.clickjacking.XFrameOptionsMiddleware',
]
ROOT_URLCONF = 'testDjango.urls'
TEMPLATES = [
{
'BACKEND': 'django.template.backends.django.DjangoTemplates',
'DIRS': [],
'APP_DIRS': True,
'OPTIONS': {
'context_processors': [
'django.template.context_processors.debug',
'django.template.context_processors.request',
'django.contrib.auth.context_processors.auth',
'django.contrib.messages.context_processors.messages',
],
},
},
]
WSGI_APPLICATION = 'testDjango.wsgi.application'
DATABASES = {
'default': {
'ENGINE': 'django.db.backends.sqlite3',
'NAME': BASE_DIR / 'db.sqlite3',
}
}
AUTH_PASSWORD_VALIDATORS = [
{
'NAME': 'django.contrib.auth.password_validation.UserAttributeSimilarityValidator',
},
{
'NAME': 'django.contrib.auth.password_validation.MinimumLengthValidator',
},
{
'NAME': 'django.contrib.auth.password_validation.CommonPasswordValidator',
},
{
'NAME': 'django.contrib.auth.password_validation.NumericPasswordValidator',
},
]
LANGUAGE_CODE = 'en-us'
TIME_ZONE = 'UTC'
USE_I18N = True
USE_L10N = True
USE_TZ = True
STATIC_URL = '/static/'
DEFAULT_AUTO_FIELD = 'django.db.models.BigAutoField'
解决方案
我只需settings.py
将应用程序的名称添加到我的文件中,该名称位于flavo
名为的代码部分中INSTALLED_APPS
:
INSTALLED_APPS = [
'flavo',
'django.contrib.admin',
'django.contrib.auth',
'django.contrib.contenttypes',
'django.contrib.sessions',
'django.contrib.messages',
'django.contrib.staticfiles',
]
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