1. Configure your container (Tomcat, it appears for you) to resolve a JNDI
name to your datasource (database or LDAP server). I just started using
Tomcat again after 2 years, so I forgot just how to do this (I just bought
James Goodwill's "Jakarta Apache Tomcat" (O'Reilly Dec. 2001 - covers 4.x -
but I haven't cracked it yet). It's probably a combination of one or more
files in the %CATALINA_HOME%/config directory. There will be a tag to
associate a JNDI name with the datasource. You can call it anything you
want, but conventionally it's something like "jdbc/myDatasourceName."
2. Create a class (value object, session bean, JavaBean, etc.) to
instantiate a connection and query the datasource:
import java.util.*;
import java.sql.*;
import java.io.*;
import javax.sql.*;
import javax.naming.*;
public class MyDataObject implements serializable {
public void getData() throws IOException, SQLException {
Connection conn = null;
DataSource ds = null;
OutputStream out = null;
try {
Context ic = new InitialContext();
ds = (DataSource) ic.lookup( "jdbc/myDatasourceName");
conn = ds.getConnection();
// query and return data through the Connection object,
// probably to a static java.util.Properties object
} catch( NamingException e) {
e.printStackTrace();
} finally {
// cleanup
}
}
}
3. Call this object from a Struts Action class:
Properties props = MyDataObject.properties;
and use props as you will.
Mark
-----Original Message-----
From: Vincent Stoessel [mailto:[EMAIL PROTECTED]]
Sent: Tuesday, September 10, 2002 12:14 PM
To: Struts Users Mailing List
Subject: Re: jndi as a data source
I thought it might be cool to use ldap as an authetication mechanism.
Yeah, I saw the tomcat jndi how-to.
I could have sworn that I saw jndi used as a datasource but I could
haave been tired on that day. I'm still a struts newbie, so I wouldn't
know how to do cool struts authetication with regular JDBC either. :)
Galbreath, Mark wrote:
> JNDI operates through your container environment, not Struts. You can get
> that information from your app server's docs (specifically) or from
> java.sun.com (generally). What, specifically do you need to know?
>
> Mark
>
> -----Original Message-----
> From: Vincent Stoessel [mailto:[EMAIL PROTECTED]]
> Sent: Tuesday, September 10, 2002 10:26 AM
> To: Struts Users
> Subject: jndi as a data source
>
>
> Hello All,
> I'm cuurently searching but can't seem to find a page with an example
> jndi example for struts. I have to build a quick demo app for the suits.
:)
> Any pointers or clue bricks will be appreciated.
> Thanks in advance.
>
>
--
Vincent Stoessel
Linux Systems Developer
vincent xaymaca.com
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