python – django异常处理程序中间件和handler500

weixin_38091938 2019-09-12 12:36:12

我有一个设置了handler500的django应用程序.我想为它添加自定义异常处理程序.我创建了一个处理进程异常的中间件： Django calls process_exception() when a view raises an exception. process_exception() should return either None or an HttpResponse object. If it returns an HttpResponse object, the response will be returned to the browser. Otherwise, default exception handling kicks in. https://docs.djangoproject.com/en/dev/topics/http/middleware/?from=olddocs#process-exception 我的ErrorMiddleware看起来像： class ErrorMiddleware(object): def process_exception(self, request, exception): try: #logic goes here except Exception: pass return None 我的设置如下： MIDDLEWARE_CLASSES = ( 'my.error.ErrorMiddleware', 'django.middleware.common.CommonMiddleware', 'django.contrib.sessions.middleware.SessionMiddleware', 'django.middleware.csrf.CsrfViewMiddleware', 'django.contrib.auth.middleware.AuthenticationMiddleware', 'django.contrib.messages.middleware.MessageMiddleware', ) DEBUG = False 在这种情况下,我的浏览器永远不会从页面获得异常响应.虽然列表中没有我的中间件,但我得到handler500正常工作. 我希望执行默认的异常处理机制,而不在我的中间件中显式调用handler500视图. UPD： handler500模块看起来像这样： #imports .... def custom_500(request): """ Return an error ID (hash) that can be provided to support """ return render(request, '500.html', { 'timestamp': datetime.datetime.now().isoformat(), 'diagcode': "hello", } )

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