this is my problem:
i insert a value into the database and forward it another page which displays the result.
since i use jsp:forward, the user browser displays the url from which the jsp:forward was called.
if i refresh the browser, the data are again inserted to the database. is there a way to prevent it.

i'm sure there are more elegant solutions, but here's one that kind of works:

test.jsp:

<%
if (session.getAttribute("forwarded") != null) {
    out.println(session.getAttribute("forwarded"));
} else {
%>
<jsp:forward page="/status.jsp">
<jsp:param name="msg" value="Ok, data inserted. don't hit refresh..." />
</jsp:forward>
<% } %>

status.jsp:

<%= request.getParameter("msg") %>
<%
session.setAttribute("forwarded", "Please do not hit refresh!");
%>


Of course now you're burdened with keeping track of the 'forwarded' attribute of the session object.

thank u. this one is fine for my application.