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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