我是 Django 框架的新手,试图通过 youtube 教程来更好地理解。我创建了一个简单的博客文章 webiste,在我尝试分别更新我的 urls.py、views.py 和 home.html 文件之前,它工作正常。现在,当我去测试本地机器上的 URL 时,我返回了一个 500 内部服务器错误,我不明白这是什么。我相信我的项目配置正确,因为我已经在我的 settings.py 文件中配置了所有变量。我已将我的博客名称添加到
INSTALLED_APPS = [
'django.contrib.admin',
'django.contrib.auth',
'django.contrib.contenttypes',
'django.contrib.sessions',
'django.contrib.messages',
'django.contrib.staticfiles',
'**DrewThe1stBlog**',
], ROOT_URLCONF = 'DrewsBlog.urls':url 配置 谁能对我做错了什么提供任何见解。
我尝试调试代码,但无法理解堆栈跟踪。关于 Stack Overflow 的一些简单研究我尝试将我的 python 路径添加到 Templates_DIR 以及其他没有用的东西。
下面的堆栈跟踪:
Environment:
>
> Request Method: GET
> Request URL: http://localhost:8000/
>
> Django Version: 4.1.7
> Python Version: 3.8.5
> Installed Applications:
> ['django.contrib.admin',
> 'django.contrib.auth',
> 'django.contrib.contenttypes',
> 'django.contrib.sessions',
> 'django.contrib.messages',
> 'django.contrib.staticfiles',
> 'DrewThe1stBlog']
> 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.filesystem.Loader: /Users/drewcampbell/PersonalWebsitePython/DrewsBlog/DrewThe1stBlog/templates/DrewThe1stBlog/post_list.html/DrewThe1stBlog/post_list.html (Source does not exist)
> django.template.loaders.app_directories.Loader: /Users/drewcampbell/PersonalWebsitePython/virtual/lib/python3.8/site-packages/django/contrib/admin/templates/DrewThe1stBlog/post_list.html (Source does not exist)
> django.template.loaders.app_directories.Loader: /Users/drewcampbell/PersonalWebsitePython/virtual/lib/python3.8/site-packages/django/contrib/auth/templates/DrewThe1stBlog/post_list.html (Source does not exist)
> django.template.loaders.app_directories.Loader: /Users/drewcampbell/PersonalWebsitePython/DrewsBlog/DrewThe1stBlog/templates/DrewThe1stBlog/post_list.html (Source does not exist)
>
>
>
> Traceback (most recent call last):
> File "/Users/drewcampbell/PersonalWebsitePython/virtual/lib/python3.8/site-packages/django/core/handlers/exception.py", line 56, in inner
> response = get_response(request)
> File "/Users/drewcampbell/PersonalWebsitePython/virtual/lib/python3.8/site-packages/django/core/handlers/base.py", line 220, in _get_response
> response = response.render()
> File "/Users/drewcampbell/PersonalWebsitePython/virtual/lib/python3.8/site-packages/django/template/response.py", line 114, in render
> self.content = self.rendered_content
> File "/Users/drewcampbell/PersonalWebsitePython/virtual/lib/python3.8/site-packages/django/template/response.py", line 90, in rendered_content
> template = self.resolve_template(self.template_name)
> File "/Users/drewcampbell/PersonalWebsitePython/virtual/lib/python3.8/site-packages/django/template/response.py", line 72, in resolve_template
> return select_template(template, using=self.using)
> File "/Users/drewcampbell/PersonalWebsitePython/virtual/lib/python3.8/site-packages/django/template/loader.py", line 47, in select_template
> raise TemplateDoesNotExist(", ".join(template_name_list), chain=chain)
>
> Exception Type: TemplateDoesNotExist at /
> Exception Value: DrewThe1stBlog/post_list.html
>
我的python文件截图见附件
您看到的错误是“TemplateDoesNotExist”错误,这意味着 Django 无法找到您尝试在 views.py 文件中使用的模板文件。根据您提供的堆栈跟踪,缺少的模板文件是 DrewThe1stBlog/post_list.html。
您可以检查以下几项以解决此错误:
TEMPLATES = [
{
'BACKEND': 'django.template.backends.django.DjangoTemplates',
'DIRS': [
os.path.join(BASE_DIR, 'templates'),
],
'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',
],
},
},
]
此示例将 DIRS 选项设置为包含名为“templates”的目录,该目录位于项目的基本目录中。如果您的模板文件位于不同的目录中,则需要将该目录添加到 DIRS 列表中。
确保模板文件存在于正确的位置。在您提供的堆栈跟踪中,Django 正在寻找位于
/Users/drewcampbell/PersonalWebsitePython/DrewsBlog/DrewThe1stBlog/templates/DrewThe1stBlog/post_list.html
的模板文件,但没有找到。仔细检查该文件是否存在于该位置以及文件名是否拼写正确。
确保将正确的模板名称传递给 views.py 文件中的渲染方法。在你的 get 方法中,你应该有一行看起来像这样:
return render(request, 'DrewThe1stBlog/post_list.html', {'posts': posts})
确保渲染方法的第一个参数是模板文件的正确名称。
希望这些建议之一能帮助您解决您看到的“TemplateDoesNotExist”错误。