Do your log files have any interesting messages?
Craig
On Mon, 18 Mar 2002, Nikola Milutinovic wrote:
> Date: Mon, 18 Mar 2002 21:21:36 +0100
> From: Nikola Milutinovic <[EMAIL PROTECTED]>
> Reply-To: Tomcat Users List <[EMAIL PROTECTED]>
> To: Tomcat Users List <[EMAIL PROTECTED]>
> Subject: Re: JDBC/JNDI problem, continued - PUZZLED
>
> Nikola Milutinovic wrote:
>
> > Hi all.
> >
> > PostgreSQL 7.2
> > PostgreSQL JDBC 7.2
> > Tomcat 4.0.1
> >
> > Problem: When I try to lookup a resource regularely (I think) defined, I
> > get "null". The JDBC resource is defined as per Tomcat docs and general
> > advice on this list.
> >
> > I have made some test, I can lookup the following:
> >
> > java:comp
> > java:comp/env
> > java:comp/env/jdbc
> >
> > But when I try "java:jdbc/env/jdbc/AddressBookDB" I get "null". The
> > resource in question should be OK.
> >
> > Is there a way to see what goes on in Tomcat's JNDI tree? Some sort of
> > JNDI browser?
>
> So, I decided to write my own JNDI browser, after all, I have Java, JSP and JNDI
> in Tomcat. :-)
>
> Relatively simple code:
>
> <p>Context looked up: <strong><%= contextPath %></strong></p>
> <%
> InitialContext initCtx;
> Context envCtx;
>
> initCtx = new InitialContext();
> NamingEnumeration enum = initCtx.listBindings( contextPath );
> int i = 1;
> %>
> <table width="100%" border="0" cellspacing="0" cellpadding="3">
> <%
> while( enum.hasMore() ) {
> %>
> <tr>
> <td><%= i %></td>
> <td><%= ((Binding)enum.next()).toString() %></td>
> </tr>
> <%
> }
> %>
> </table>
>
> This is what I get when I set context to "java:comp/env/jdbc":
>
> ----------------------------------------------
> Context looked up: java:comp/env/jdbc
>
> 1 AddressBookDB: org.apache.naming.ResourceRef:Reference Class Name:
> javax.sql.DataSource Type: scope Content: Shareable Type: auth Content: Container
> ----------------------------------------------
>
> So, it is there. Why does "lookup()" on that particular resource return "null"?
>
> Nix.
>
>
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