I am following the JSP -> Servlet -> JSP architecture for our project. There are a couple of problems that I am facing : Let me first draw a simple workflow. i) Main.jsp displays a screen with Add/Edit/Delete options. It also instantiates a bean with session scope for encapsulating the properties related to the data. As this jsp is again at the end of the loop, for good measure it also calls reset on the bean to initialise all the parameters. ii) user action in Main.jsp is forwarded to a ServletController which determines which servlet (say Display.class) should be invoked and forwards the request to it. iii) Display populates some data in the bean which helps the following jsp to configure the look of the form. It forwards to GetData.jsp. iv ) GetData.jsp displays the form for data entry, and forwards to ControllerServlet which forwards to an ActorServlet that actually takes the relevant persistence action on the database. On success, it forwards control back to Main.jsp. v) Main.jsp again throws up the screen for Add/Delete/Edit along with details of the last transaction, which it gets from the bean. After displaying the same, *it resets the bean variables*. So far, so good. Problem No 1) <BIG PROBLEM> If the user presses on refresh at stage (v), then the same record again gets written to the database. (I know that we can solve this at the database end, but that solution is case specific). What is the cause of this, and is there a remedy *at the server side* ? </BIG PROBLEM> I have got a temporary work around for the same at the server end. At the client end, I think one may use Javascript to enable/disable/catch certain events, and hence obviate the problem. Problem No 2) <SMALL PROBLEM> The url displayed on the address bar remains at http://...../servlet/ControllerServlet. Without doing a sendRedirect() can one change this to reflect the current jsp in action. </SMALL PROBLEM> Both may be related problems, but the first one is the bigger bother. Thanks in anticipation. - Uddipan. =========================================================================== To unsubscribe: mailto [EMAIL PROTECTED] with body: "signoff JSP-INTEREST". FAQs on JSP can be found at: http://java.sun.com/products/jsp/faq.html http://www.esperanto.org.nz/jsp/jspfaq.html
