NP, it's a relatively far away hidden comment in the servlet spec, which cost me quite a bit of time to find as well. Glad to have been of help.
Martin > -----Original Message----- > From: Sgarlata Matt [mailto:[EMAIL PROTECTED] > Sent: woensdag 16 juli 2003 16:53 > To: Tag Libraries Users List > Subject: Re: Exception var - how to get using JSTL > > > I'm not sure there's a good way to do this in JSTL, but > thanks to your help > Martin, I was able to get the stack trace to print in JSP, > which I've tried > to do many times over the last couple years! The code looks > like this: > > <% > Exception exception = > ((Exception)request.getAttribute("javax.servlet.error.exception")); > exception.printStackTrace(new java.io.PrintWriter(out)); > %> > > Matt > ----- Original Message ----- > From: "Martin van Dijken" <[EMAIL PROTECTED]> > To: "Tag Libraries Users List" <[EMAIL PROTECTED]> > Sent: Wednesday, July 16, 2003 10:26 AM > Subject: RE: Exception var - how to get using JSTL > > > > Erm, > > > > Not really experienced enough with JSTL yet for that. What you're > currently getting is the exception.toString(). For the full > stacktrace you'd > need to do: > > > > <% > > > ((Exception)request.getAttribute("javax.servlet.error.exceptio > n")).printStac > kTrace(response.getWriter()); > > %> > > > > How to express that in JSTL, I don't know. I'd specifically not know > whether the cast was necessary and how to pass the > printStackTrace method > the PrintWriter. > > > > Martin > > > > > -----Original Message----- > > > From: Jeff Born [mailto:[EMAIL PROTECTED] > > > Sent: woensdag 16 juli 2003 16:24 > > > To: Tag Libraries Users List > > > Subject: RE: Exception var - how to get using JSTL > > > > > > > > > Martin, > > > > > > That worked, but I only see the first line of the stacktrace. > > > Anyway to get > > > the entire stacktrace? > > > > > > This is what I currently have: > > > > > > <c:out value="${requestScope['javax.servlet.error.exception']}" /> > > > > > > Thanks, > > > > > > jb > > > > > > -----Original Message----- > > > From: Martin van Dijken [mailto:[EMAIL PROTECTED] > > > Sent: Wed 7/16/2003 10:07 AM > > > To: Tag Libraries Users List > > > Cc: > > > Subject: RE: Exception var - how to get using JSTL > > > > > > > > > > > > Hey Jeff, > > > > > > The exception is available as a parameter in the > > > request attributes > > > under "javax.servlet.error.exception". > > > > > > Martin > > > > > > > -----Original Message----- > > > > From: Jeff Born [mailto:[EMAIL PROTECTED] > > > > Sent: woensdag 16 juli 2003 16:08 > > > > To: Tag Libraries Users List > > > > Subject: RE: Exception var - how to get using JSTL > > > > > > > > > > > > I would like to have an error page that handles exceptions > > > > that flows the > > > > site I'm developing. In order to do this I would like to > > > > replace the Tomcat > > > > generated page with a jsp: > > > > > > > > > > > > > > > > <error-page> > > > > > > > > <exception-type>java.lang.Throwable</exception-type> > > > > > > > > <location>/jsp/error.jsp</location> > > > > > > > > </error-page> > > > > > > > > > > > > > > > > Then in the error.jsp have a line like : > > > > > > > > > > > > > > > > <c:out value="${pageContext.exception.stacktrace}" /> > > > > > > > > > > > > > > > > However nothing prints. If I modify the jsp containing the > > > > preceding c:out > > > > to contain an error, then the Tomcat Error page takes over and > > > shows a > > > > stacktrace. So I know one is available, I just need to know > > > > how to access > > > > it! Anyone know what I’m doing wrong? > > > > > > > > > > > > > > > > Thanks, > > > > > > > > > > > > > > > > jb > > > > > > > > -----Original Message----- > > > > From: Michael Duffy [mailto:[EMAIL PROTECTED] > > > > Sent: Wed 6/18/2003 7:47 AM > > > > To: Tag Libraries Users List; Jim Kennedy > > > > Cc: > > > > Subject: Re: Exception var - how to get using JSTL > > > > > > > > > > > > > > > > > > > > Yes, 'javax.servlet.jsp.jspException' is the parameter > > > > name that's used when the exception value is set. > > > > It's important to know, because if you do MVC-2 with > > > > your own front controller servlet you've got to set > > > > that parameter inside the servlet whenever an > > > > exception is thrown. If you don't, the JSP error page > > > > won't find it. > > > > > > > > Buy Shawn Bayern's "JSTL In Action" book by Manning. > > > > What you wanted was right there on page 267. Lots of > > > > other good stuff, too. > > > > > > > > Anytime I'm faced with a new technology I like to have > > > > a good book at my elbow. When I started with JSTL, > > > > this was the only book I bought. > > > > > > > > --- Jim Kennedy <[EMAIL PROTECTED]> wrote: > > > > > This also works: > > > > > <c:set var="error" > > > > > > > > > > > > value="${requestScope['javax.servlet.jsp.jspException']}" > > > > > /> (for Tomcat) > > > > > > > > > > but I wanted to avoid the "javax.servlet.jsp..." > > > > > stuff. > > > > > > > > > > Your method is what I was looking for. I have not > > > > > read anything that lead > > > > > me to "exception" being the name of that property. > > > > > Is there a table that > > > > > shows all available pageContext properties. It's > > > > > definitely logical though > > > > > since exception is an implicit variable for JSP > > > > > pages. However, that > > > > > pattern breaks down for: > > > > > > > > > > pageContext.servletConfig which is "config" in JSP > > > > > pages > > > > > > > > > > and > > > > > > > > > > pageContext.servletContext which is "application" in > > > > > JSP pages. > > > > > > > > > > Can you tell me how you came by this info for > > > > > "exception". > > > > > > > > > > > > > > > > > > > > thanks > > > > > > > > > > > > > > > Jim Kennedy > > > > > IT Consultant > > > > > Mobile Phone: 813-503-1484 > > > > > > > > > ----------------------------------------------------- > > > > > > > > > > > > > > > > > > > > ----- Original Message ----- > > > > > From: "Michael Duffy" <[EMAIL PROTECTED]> > > > > > To: "Tag Libraries Users List" > > > > > <[EMAIL PROTECTED]>; "Jim > > > > > Kennedy" <[EMAIL PROTECTED]> > > > > > Sent: Tuesday, June 17, 2003 4:39 PM > > > > > Subject: Re: Exception var - how to get using JSTL > > > > > > > > > > > > > > > > > > > > > > Wouldn't you use > > > > > > > > > > > > <c:out value="${pageContext.exception.message}"/>? > > > > > > > > > > > > That's just straight JSTL, so it should be okay. - > > > > > MOD > > > > > > > > > > > > > > > > > > > > > > > > --- Jim Kennedy <[EMAIL PROTECTED]> wrote: > > > > > > > Can someone help me with the technique to grap > > > > > the > > > > > > > exception (implicit) > > > > > > > variable that exists when isErrorPage=true. I > > > > > know > > > > > > > it will be part of the > > > > > > > pageScope JSTL variable, but I need a technique > > > > > NOT > > > > > > > specific to a container. > > > > > > > > > > > > > > I don't want to use <% %> at all. I need an > > > > > only > > > > > > > tag technique. > > > > > > > > > > > > > > Currently there is not ${exception} guy. > > > > > > > > > > > > > > Thanks > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > --------------------------------------------------------------------- > > > > > > > To unsubscribe, e-mail: > > > > > > > [EMAIL PROTECTED] > > > > > > > For additional commands, e-mail: > > > > > > > [EMAIL PROTECTED] > > > > > > > > > > > > > > > > > > > > > > > > > __________________________________ > > > > > > Do you Yahoo!? > > > > > > SBC Yahoo! DSL - Now only $29.95 per month! > > > > > > http://sbc.yahoo.com > > > > > > > > > > > > > > > > > > > > > > > > > > > > > --------------------------------------------------------------------- > > > > > > To unsubscribe, e-mail: > > > > > [EMAIL PROTECTED] > > > > > > For additional commands, e-mail: > > > > > [EMAIL PROTECTED] > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > --------------------------------------------------------------------- > > > > > To unsubscribe, e-mail: > > > > > [EMAIL PROTECTED] > > > > > For additional commands, e-mail: > > > > > [EMAIL PROTECTED] > > > > > > > > > > > > > > > > > __________________________________ > > > > Do you Yahoo!? > > > > SBC Yahoo! DSL - Now only $29.95 per month! > > > > http://sbc.yahoo.com > > > > > > > > > > > > > > > > --------------------------------------------------------------------- > > > > To unsubscribe, e-mail: > > > [EMAIL PROTECTED] > > > > For additional commands, e-mail: > > > > [EMAIL PROTECTED] > > > > > > > > > > > > > > > > > > --------------------------------------------------------------------- > To unsubscribe, e-mail: [EMAIL PROTECTED] > For additional commands, e-mail: [EMAIL PROTECTED] > >
