I took advantage just this week of an exception being saved via saveException. A place higher in the Struts call stack had turned the exception into a "return null", so I couldn't tell why that was happening until I pulled the exception out of the context and dumped its stack trace.
FWIW... Donnie > -----Original Message----- > From: Dmitri Valdin [mailto:[EMAIL PROTECTED]] > Sent: Sunday, January 27, 2002 8:13 AM > To: Struts Developers List > Subject: Re: Throwing exceptions from within Struts tags > > > The first way is not welcome for sure, since at that case the original > exception would be lost > (in case there was some, causing this somethingBad to happen) > But I don't understand the reason for calling RequestUtils.saveException > in second case. If we configure an error page in web.xml then we > can access > the exception just with *exception* variable which is defined on every jsp > page. > This error page would be a good place to log the exception as well. > Please correct me if I am wrong. > > Dmitri Valdin > > > > I noticed that there are two different ways in which exceptions > are thrown > > from within Struts tags. One way is like this: > > > > if (somethingBadHappened) { > > throw new JspException(messages.getMessage(...)); > > } > > > > and the other is like this: > > > > if (somethingBadHappened) { > > JspException e = new JspException(messages.getMessage(...)); > > RequestUtils.saveException(pageContext, e); > > throw e; > > } > > > > I'm guessing that the first is "the old way" and the second is "the new > > way", and that I should use the latter when writing new code (and > > potentially when updating existing code). Is this correct? > > > > Also, is there a reason we throw JspException instead of > JspTagException? > > > > Thanks! > > > > -- > > Martin Cooper > > > > > > > > -- > > To unsubscribe, e-mail: > <mailto:[EMAIL PROTECTED]> > > For additional commands, e-mail: > <mailto:[EMAIL PROTECTED]> > > > > > > > > -- > To unsubscribe, e-mail: <mailto:[EMAIL PROTECTED]> For additional commands, e-mail: <mailto:[EMAIL PROTECTED]> -- To unsubscribe, e-mail: <mailto:[EMAIL PROTECTED]> For additional commands, e-mail: <mailto:[EMAIL PROTECTED]>
