问题
From the documentation:
All of the error templates live inside TwigBundle. To override the templates, we simply rely on the standard method for overriding templates that live inside a bundle.
And:
To see the full list of default error templates, see the Resources/views/Exception directory of the TwigBundle.
Looking at the after-mentioned directory i can find several files. I'm interested in custom templates for 403, 404 and 500 errors, so i created error.html.twig (parent template) and error403.html.twig, error404.html.twig and error500.html.twig that extends from 'TwigBundle:Exception:error.html.twig' (overridden by my custom parent template).
Is this correct? What happens if another kind of error or exception is thrown?
回答1:
Yes it is correct.
All other kind of exceptions will be caught by Kernel and error500.html.twig page will be rendered.
To test it, you can turn off your debug for a moment, by switching second parameter passed to AppKerner constructor in app_dev.php
$kernel = new AppKernel('dev', false);
Then you can
- type wrong address to test 404 error page
- throw any exception to test 500 error page
throw new \Exception(); // test 500 error page
- throw
throw new \Symfony\Component\HttpKernel\Exception\AccessDeniedHttpException();
or
throw new \Symfony\Component\HttpKernel\Exception\HttpException(403); //to test 403 error page
来源：https://stackoverflow.com/questions/11640372/which-templates-should-be-overridden-in-symfony-2-error-customization