Re: Exception handling in Spring-MVC/FreeMarker web applications

Monday, October 26, 2009, 5:10:40 PM, [email protected] wrote:

> It looks like it needs a custom handler. It's actually quite easy to set
> the handler in the Spring configuration, but setting it to use the Rethrow
> handler results in either a stack trace in the browser or a blank page,
> depending upon whether or not you have an "error-page" element in the
> web.xml to trap 500 errors (with this element in place you get a blank
> page).

Just in case you missed it, FreeMarker itself logs the exception. So,
the blank(ish) page might not that bad. (Of course it should not be
really blank, I should say "Sorry, an error has occurred on the
server" etc.)

> Daniel Dekany <[email protected]> wrote on 10/22/2009 01:01:43 AM:
>
>> Wednesday, October 21, 2009, 10:25:53 PM, [email protected] wrote:
>>
>> > Maybe... but if the handler rethrows the exception, what catches it in
> the
>> > SpringMVC environment?
>>
>> I don't know... that's in the hands of Spring MVC. If it doesn't
>> handle it properly, you may try to pull some dirty trick in a custom
>> TemplateExceptionHandler implementation, although best would be if the
>> thing is fixed in Spring MVC then.
>>
>> > How would my app know to force a 500 error response
>> > back to the client? I'm trying to get my brain round that. I think I
> need
>> > to experiment a bit.
>> >
>> > Daniel Dekany <[email protected]> wrote on 10/21/2009 02:08:39 PM:
>> >
>> >> Wednesday, October 21, 2009, 9:58:17 PM, [email protected] wrote:
>> >>
>> >> > That's great. I think I need either IGNORE_HANDLER or perhaps
> develop
>> > my
>> >> > own custom handler. Either way, this is the key. Thanks!
>> >>
>> >> Nah, certainly you want the "rethrow" handler... Unless you want buggy
>> >> templates to return a some half-done response without showing any
>> >> error message to the user.
>> >>
>> >> > "Newman, John W" <[email protected]> wrote on 10/21/2009
>> > 01:13:57
>> >> > PM:
>> >> >
>> >> >> Hi -
>> >> >>
>> >> >> Take a look at
>> >> >>
>> >> >>       configuration.
>> >> >>
> setTemplateExceptionHandler(TemplateExceptionHandler.RETHROW_HANDLER);
>> >> >>
>> >> >> RETHROW_HANDLER may not be what you want ... I forget what each
>> >> >> does, there are a few different options.  But that's the setting
>> > you're
>> >> > after
>> >> >>
>> >> >> -----Original Message-----
>> >> > [snip]
>> >> >
>> >> >
>> >> >
>> >>
>> >>
>> >> --
>> >> Best regards,
>> >>  Daniel Dekany
>>
>> --
>> Best regards,
>>  Daniel Dekany
>>
>>
>>
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-- 
Best regards,
 Daniel Dekany


------------------------------------------------------------------------------
Come build with us! The BlackBerry(R) Developer Conference in SF, CA
is the only developer event you need to attend this year. Jumpstart your
developing skills, take BlackBerry mobile applications to market and stay 
ahead of the curve. Join us from November 9 - 12, 2009. Register now!
http://p.sf.net/sfu/devconference