Forwarding with request

Question

In my JSP, I need to post to the same page, and do some small validation on one of the parameters and then display errors as necessary. If that one validation passes (in this case, if the entry exists in the database) I need to pass all the parameters onto a second JSP page to do some logic processing, and then display the results. What's the easiest way to accomplish this? Is there a way I can just pass the whole request through to the next page? Well, I'm sure there is.. but i'm just not sure which way would be most appropriate.
Thanks
Simon

Answer 1

Follow the below instruction might help:
let say u have a file fromwhere_u_send.jsp which accept a
parameter called "param".
u send it to to_where_i_get.jsp and do validation, if error,
send it back(forward) to fromwhere_u_send.jsp
hope it help.
towhere_i_get.jsp
<%     
String param = request.getParameter("param");
%>
<%if (param.equals("")) { %>
<form name="frm" action="./fromwhere_u_send.jsp"
method="post">
<input type="hidden" name="target" value="talogon" >
<input type="hidden" name="param" value="<%= param %>" />
</form>
<script>frm.submit();</script>
<%}