Django内部服务器错误而不是404

Question

我在使用Django 1.6、uwsgi和nginx，应用程序运行得很好，但每当我尝试访问无效的URL时，都会收到500错误和下面的邮件，而不是正常的404错误。

比如我访问 http://my_project_url.com/whatever 或者 http://my_project_url.com/favicon.ico 时，都会出现这个问题。

我检查过这些URL，但没有找到符合这个模式的正则表达式。

以下是邮件中的错误追踪信息：

Traceback (most recent call last):

  File "/project/virtenv/local/lib/python2.7/site-packages/django/core/handlers/base.py", line 152, in get_response
    response = callback(request, **param_dict)

  File "/project/virtenv/local/lib/python2.7/site-packages/django/utils/decorators.py", line 99, in _wrapped_view
    response = view_func(request, *args, **kwargs)

  File "/project/virtenv/local/lib/python2.7/site-packages/django/views/defaults.py", line 30, in page_not_found
    body = template.render(RequestContext(request, {'request_path': request.path}))

  File "/project/virtenv/local/lib/python2.7/site-packages/debug_toolbar/panels/templates/panel.py", line 55, in _request_context__init__
    context = processor(request)

  File "./project/context_processors.py", line 88, in app_delegate
    app_name = resolve(request.path).app_name

  File "/project/virtenv/local/lib/python2.7/site-packages/django/core/urlresolvers.py", line 453, in resolve
    return get_resolver(urlconf).resolve(path)

  File "/project/virtenv/local/lib/python2.7/site-packages/django/core/urlresolvers.py", line 333, in resolve
    raise Resolver404({'tried': tried, 'path': new_path})

Resolver404: {u'path': u'favicon.ico', u'tried': [[<RegexURLResolver <module 'custom_

如果我尝试访问一个我在应用中用 raise Http404 抛出的URL，那就没问题，我会看到正常的nginx错误页面。

Answer 1

看起来你有一个自定义处理器在尝试解析路径：

File "./project/context_processors.py", line 88, in app_delegate
  app_name = resolve(request.path).app_name

引用django的resolve()文档：

如果这个网址无法解析，这个函数会抛出一个Resolver404异常（这是Http404的一个子类）。

我建议你在自定义处理器的代码中处理这个异常，让它看起来像这样：

try:
    resolve_result = resolve(request.path)
    app_name = resolve_result.app_name
    ... your code ....
except Resolver404:
    pass