Re: cannot get my JSP to forward to database-handler servlet (in netbeans)

From:
=?ISO-8859-1?Q?Arne_Vajh=F8j?= <arne@vajhoej.dk>
Newsgroups:
comp.lang.java.programmer
Date:
Thu, 05 Nov 2009 21:56:35 -0500
Message-ID:
<4af39055$0$269$14726298@news.sunsite.dk>
terry433iid@yahoo.com wrote:

I have a JSP that processes some html form (processForm.JSP) and then
forwards to a Java Servlelt that carries out some mysql transactions
to do error checking (under 'project->Source Packages' I have a new
package called 'foo', servlet is DBHandler.java)

processForm.jsp contains the following lines :-

<% if (formHandler.validate()) {
  %>
       jsp:forward page="/DBHandler" />

I have updated web.xml with the name and location of the DBHandler
(<servlet-class>foo.DBHandler</servlet-class>)

When I compile/deploy/run in netbeans - my web application falls over,
in firefox I get a very brief error (HTTP 404 - the requested resource
() is not available), I get nothing in the netbeans glassfish console.

I have placed some System.out.println to help me debug the sequence of
events, and I can see that DBHandler.java is never called

Can some one please point out what exactly should the syntax be for
forwarding from JSP->servlet (i.e. the JSP forward syntax), should
there be '/' or not?? does web.xml take care of the mapping from name -
location??


Is /DBHandler mapped to the servlet?

On the other hand I strongly recommend that you do it the other way
around:
- form is posted to servlet
- servlet does validation and transaction
- servlet forward to JSP

Arne

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