There was a post the other day mentioning the trick of putting a timestamp in the
query string at
the end of the URL's.
--- Fr�d�ric_Houbie_-_ABSIS-GROUP <[EMAIL PROTECTED]> wrote:
> In fact, the value in the session is ok, but it seems that the proxy is
> caching a lot, because the url inn the browser is the Action servlet name
> instead of JSP page, so the url /Online/TenancySchedule.do is always the
> same and the Actionforward to the jsp is transparent. How can I force the
> proxy to regenerate the jsp page, here is my code
>
> public class SelectSiteAction extends org.apache.struts.action.Action {
>
> /** Creates new LogonAction */
> public SelectSiteAction() {
> }
>
> public org.apache.struts.action.ActionForward
> perform(org.apache.struts.action.ActionMapping mapping,
> org.apache.struts.action.ActionForm form,
> javax.servlet.http.HttpServletRequest request ,
> javax.servlet.http.HttpServletResponse response) throws java.io.IOException,
> javax.servlet.ServletException {
> // Extract attributes we will need
> Locale locale = getLocale(request);
> MessageResources messages = getResources();
>
> // Validate the request parameters specified by the user
> HttpSession session = request.getSession();
> ActionErrors errors = new ActionErrors();
> System.out.println("SelectSiteAction [Start]");
>
> String strCellIDParam = request.getParameter("CellID");
> System.out.println("CellID received in URL " + strCellIDParam);
>
> // Report any errors we have discovered back to the original form
>
> // Is there a currently logged on user?
> reqReoUser reoUser = (reqReoUser) session.getAttribute("User");
> if (reoUser == null) {
> if (servlet.getDebug() >= 1)
> servlet.log(" User is not logged on in session "
> + session.getId());
> return (servlet.findForward("logon"));
> }
> // Get Datasource configured from struts-config.xml
>
> DataSource dataSource = (DataSource)
> servlet.getServletContext().getAttribute(Action.DATA_SOURCE_KEY);
> java.sql.Connection conn = null;
> try
> {
> // Get a connection to database from the Generic Pool
> conn = dataSource.getConnection();
> // Put a session value specifying the Site ID on which every
> report will work
> if (session.getAttribute("Site") != null)
> session.removeAttribute("Site");
> session.setAttribute("Site", strCellIDParam);
> System.out.println("Site session value");
> System.out.println(session.getAttribute("Site"));
> // Put a request attribute with record of the Site
> if (session.getAttribute("SiteCard") != null)
> session.removeAttribute("SiteCard");
>
> session.setAttribute("SiteCard", reqSiteCard.findByCellID(conn,
> Integer.parseInt(strCellIDParam)));
>
> DateFormat df = DateFormat.getDateInstance(DateFormat.SHORT,
> locale);
> session.setAttribute("Today", df.format(new Date()));
>
> }
> catch (SQLException sqle)
> {
> // servlet.log(sqle);
> sqle.printStackTrace();
> session.setAttribute("SQLError", sqle);
> return (mapping.findForward("failure"));
> }
> finally
> {
> try
> {
> conn.close();
> }
> catch (SQLException sqle)
> {
> System.out.println(sqle);
> }
> conn = null;
>
> }
>
> System.out.println("SelectSiteAction [End]");
> return (mapping.findForward("ShowCard"));
> // Forward control to the specified success URI
> }
>
> }
>
> -----Original Message-----
> From: Max Cooper [mailto:[EMAIL PROTECTED]]
> Sent: mardi 12 f�vrier 2002 11:19
> To: Struts Users Mailing List
> Subject: Re: page do not refresh
>
>
> Fr�d�ric,
>
> If the query string is different between the two requests, it is not likely
> to be a page caching problem. The query string is part of the URL, so things
> that cache pages by URL will see the two requests as two different URLs.
>
> Try using the request scope, rather than the session scope, for passing the
> object from your Action to the JSP page. This is preferable unless you need
> to keep the value in the session for some other reason. However, if it does
> need to be in the session, it doesn't seem like the action is replacing the
> value in the session and needs further review (perhaps you could post the
> code that puts/gets the value in the session).
>
> -Max
>
> ----- Original Message -----
> From: "Fr�d�ric Houbie - ABSIS-GROUP" <[EMAIL PROTECTED]>
> To: "Struts-User" <[EMAIL PROTECTED]>
> Sent: Tuesday, February 12, 2002 1:34 AM
> Subject: page do not refresh
>
>
> > Hi,
> >
> > I have a problem in my struts application, I have a page that call an
> action
> > servlet which store a value received in url in session, than forward to a
> > jsp page. If I this action servlet is called with another value in url,
> the
> > jsp page do not change, it seems to come from the proxy. I put expire meta
> > tag in jsp, but no changes, the url in the adress bar is always the .do
> > action. Does it means that I must make the action servlet expire ?
> >
> > I don't understand the process,
> >
> > thanks for help
> >
> > Fr�d�ric houbie
> >
> >
> >
> >
> > --
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> >
> >
>
>
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