Django，自定义错误页面重定向到500，而不是404 [英] Django, custom error pages redirects to 500 instead of 404

问题描述

我的生产服务器具有以下设置：

I have production server which has these settings:

DEBUG = False
ALLOWED_HOSTS = ['localhost', '127.0.0.1', 'my.ip.address', 'example.com']

然后在我的主要 urls.py 文件中，添加了以下内容：

Then in my main urls.py file I have added this:

from django.conf.urls import url, include, handler404, handler500

handler500 = 'main.views.error_500'
handler404 = 'main.views.error_404'

我的 main.views 有以下内容：

def error_404(request):
    return render(request, 'main/errors/404.html', status=404)


def error_500(request):
    return render(request, 'main/errors/500.html', status=500)

当我部署生产服务器并尝试打开不存在的页面时，它应该重定向到我的 error_404 视图。但是，它重定向到我的 error_500 视图。为什么会这样？

When I deploy my production server and try to open page that does not exists, it should redirect to my error_404 view. However, it redirects to my error_500 view. Why this is happening?

推荐答案

这个问题已经三个月了，但是对于社区来说，这就是我如何解决这个问题：

This question is three months old but for the community this is how I solved this:

无法找到404页的视图需要一个 exception参数：

The 404-page-not-found-view needs an "exception" argument:

def error_404(request, exception):
    return render(request,'myapp/404.html', status = 404)

默认的404视图会将两个变量传递给模板：
request_path（导致错误的URL）和
异常，它是
触发视图的异常的有用表示（例如，包含传递给特定
Http404实例的任何消息）。

The default 404 view will pass two variables to the template: request_path, which is the URL that resulted in the error, and exception, which is a useful representation of the exception that triggered the view (e.g. containing any message passed to a specific Http404 instance).

来源： https://docs.djangoproject.com/zh-CN/2.1/ref/views/#the-404-page-not-found-view

我是Django-noob，但我假设没有此参数，则404会触发500。

I'm Django-noob but I suppose that without this argument the 404 trigger a 500.

另一件事：它对我有用，无需导入： from django.conf.urls import handler404，handler500

One more thing: It works for me without the import : "from django.conf.urls import handler404, handler500"

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