struts-user mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
From "Dan Tran" <dantt...@hotmail.com>
Subject Re: Tag to remove jsp from cache???
Date Tue, 01 Jul 2003 16:19:57 GMT
question:  can I just configure the controller .. and
dothing on the page?

-D
----- Original Message ----- 
From: "Nicolas De Loof" <nicolas.deloof@cgey.com>
Newsgroups: Struts
Sent: Tuesday, July 01, 2003 5:41 AM
Subject: Re: Tag to remove jsp from cache???


> You can configure Struts to ad HTTP no-cache headers to every response :
>
> in struts-config.xml :
>     <controller nocache="true"/>
>
> You can add some HTTP directives to your JSP (or tiles layouts) like this
:
>
> <head>
>     <meta http-equiv="expires" content="now">
>     <meta http-equiv="pragma" content="no-cache">
>     <meta http-equiv="Cache-Control" content="no-cache">
> </head>
>
> Nico.
>
>
>
> > Before you send any data in the response you can
> > Send the following thru your response object:
> >
> > <%
> >    response.setDateHeader ("Expires", 0);
> >    response.setHeader ("Pragma", "no-cache");
> >    if (request.getProtocol().equals ("HTTP/1.1")) {
> >       response.setHeader ("Cache-Control", "no-cache");
> >    }
> > %>
> >
> > Note, however that users can still go back in history
> > And resubmit their data. Browsers maintain history list
> > And unfortunately they do remember form data too. So if
> > Your user submitted a request and then clicks back button,
> > The browser will ask him/her if he/she wants to resubmit
> > the data? I saw a note somewhere in Ted's (I think) book
> > about how you can prevent this kind of submission on the
> > server side but have not explored that further. Now I
> > can't even remember where I saw it.
> >
> > The gist of it is that before you send the form to be
> > submitted by the user you stamp it, and remember what is
> > it you still expecting from the user inside the Session
> > context. If user submits the form with the right stamp
> > the request is processed, otherwise you can tell the user
> > to stop resubmitting the same request.
> >
> > Alex.
> >
> > > -----Original Message-----
> > > From: Prashanth.S [mailto:suman291857@yahoo.com]
> > > Sent: Tuesday, July 01, 2003 8:08 AM
> > > To: struts-user@jakarta.apache.org
> > > Subject: Tag to remove jsp from cache???
> > >
> > > Hi all,
> > > Is there any tag in struts to remove cache??
> > > Whenever i hit  Browser 'Back' button it should not take from the
> > cache..
> > > Any help is appreciated..
> > > or is there any option to do that
> > > Thanks
> > > Prashanth
> > >
> > >
> > > ---------------------------------
> > > Do you Yahoo!?
> > > SBC Yahoo! DSL - Now only $29.95 per month!
> >
> >
> > ---------------------------------------------------------------------
> > To unsubscribe, e-mail: struts-user-unsubscribe@jakarta.apache.org
> > For additional commands, e-mail: struts-user-help@jakarta.apache.org

---------------------------------------------------------------------
To unsubscribe, e-mail: struts-user-unsubscribe@jakarta.apache.org
For additional commands, e-mail: struts-user-help@jakarta.apache.org


Mime
View raw message