There have been many "best practices" published (media) and posted (users list) over the last year or so that, if followed, can/would elimiate these kinds of issues.
By forcing all interactions with your webapp to go through your custom actions, you can keep your "check for session expire" code in your action classes and not have to rely on your jsp to enforce it. I typically do this in an abstract BaseAction which all actions (except those not requiring authentication or session data) are required to extend. > - If I put it in the body insert, then when the login check fails > (because of session timeout) it throws an exception saying that it > couldn't forward because the output was already committed (I presume > that the preceding tiles do a flush). By placing my "is session expired" code in the base action, I do not have to replicate the check anywhere else, which elimiates this issue. > - If I put it at the top of the simpleLayout.jsp (which I thought would > be before anything was flushed) then it detects the error (and creates > the correct ActionError) but the forward to the logon page doesn't > work (the current page is displayed) and the page skip of the > CheckLogin tag doesn't work. Not sure why this is happening, but see above for avoiding it as well. Hope that helps. James Mitchell ----- Original Message ----- From: "Alan P Sexton" <[EMAIL PROTECTED]> To: <[EMAIL PROTECTED]> Sent: Sunday, October 06, 2002 1:26 PM Subject: Using CheckLogin tag from within tiles > > I am switching from plain JSP to using tiles. I was using a CheckLogin > tag on my JSP based on the one in the example for struts. This checks if > there is a valid user in the session and, if not, creates an ActionError > indicating that the session has timed out and forwards to logon. > > Now I have a simpleLayout.jsp similar to that in the tiles section of > the Chuck Cavaness's online book draft: I insert a header, a body and a > footer in the simpleLayout for my normal pages. > > Now I have a problem with the CheckLogin tag: > > - If I put it in the body insert, then when the login check fails > (because of session timeout) it throws an exception saying that it > couldn't forward because the output was already committed (I presume > that the preceding tiles do a flush). > > - If I put it at the top of the simpleLayout.jsp (which I thought would > be before anything was flushed) then it detects the error (and creates > the correct ActionError) but the forward to the logon page doesn't > work (the current page is displayed) and the page skip of the > CheckLogin tag doesn't work. > > Can anyone explain to me what is going on and how to fix it? > > > Alan Sexton > > > > > -- > 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]>
