my dog learned polymorphism
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Need help urgent

Vedhas Pitkar
Ranch Hand

Joined: Jan 27, 2001
Posts: 445
I am trying to connect to Jboss3.2 & Mysql 3 .I have modified the mysql-ds.xml such that it now reads
Have pasted the mysql driver in appropriate places.
When I see the web-console i see the jdbc/MySqlDS under jboss.jca.
The log file also shows JNDI name bound to 'java:/jdbc/MySqlDS'
However when i try to use i from the client as:
Hashtable env = new Hashtable();
env.put(Context.INITIAL_CONTEXT_FACTORY, "org.jnp.interfaces.NamingContextFactory");
env.put(Context.PROVIDER_URL, "localhost");
env.put(Context.URL_PKG_PREFIXES, "org.jboss.naming rg.jnp.interfaces" );
Context ctx = new InitialContext(env);
DataSource ds = (DataSource) ctx.lookup("java:/jdbc/MySqlDS");
I get a NameNotBound :jdbc not bound Exception

I also tried this:
DataSource ds = (DataSource) ctx.lookup("jdbc/MySqlDS");
Still i get the same exception.
Please help.
M M Islam Chisty

Joined: Aug 31, 2003
Posts: 17
1. First check that your mysql-ds.xml file is configured as follows (assuming that your database name is "XYZ"):
Note the tags <jndi-name> and <connection-url>
(just put DefaultDS rather than jdbc/MySqlDS if you want MySQL as your default database and simply delete the hsqldb-ds.xml file)
2. Within your code, just include the lines:
InitialContext ictx=new InitialContext();
DataSource ds=(DataSource)ictx.lookup("java:comp/env/jdbc/mydb");
Please note the standard enc format "java:comp/env". Also, note that the datasource name format "jdbc/mydb". Don't worry about the "mydb" part, just place any arbitrary name you like with the prefix "jdbc/"
Now deploy the whole thing. I hope it, should work now.
M. M. Islam Chisty
Dhaka, Bangladesh

M. M. Islam Chisty<br />Sr. J2EE Engineer<br />M&H Informatics<br />Ph. 8802-7121293<br />Dhaka, Bangladesh
Andres Gonzalez
Ranch Hand

Joined: Nov 27, 2001
Posts: 1561
Also, have a look at the JMX console (i don't remember exactly the URL). It helps you a lot to check all your services and MBeans. You should be able to check whether your jdbc is bound or not.

I'm not going to be a Rock Star. I'm going to be a LEGEND! --Freddie Mercury
Natkin Nat

Joined: Oct 09, 2003
Posts: 2
I have similar problem. I checked my mysql-ds.xml - it's ok.
When I'm trying to get dataSource reference the error I get is the following:
javax.naming.NameNotFoundException: comp not bound
My code is as follows:
Context ctx = new InitialContext();
javax.sql.DataSource ds = (javax.sql.DataSource)ctx.lookup("java:comp/env/jdbc/mydb");
As there's no free docs available on this topic (at least I haven't found any), can anyone give me a peace of valuable advice?
One more question. How to redirect output of jboss console in Windows bat file? I cannot check the console output - it's too long.
Natkin Nat

Joined: Oct 09, 2003
Posts: 2
I want to run jboss3.2 with mysql4.0. I've copied the mysql-ds.xml from examples to default/deploy directory, changed <jndi-name> to DefaultDS in this file and removed hsqldb-ds.xml.

The output I have from jboss3.2 startup shows that it starts & binds hypersonic & tries to use hsqldb-ds.xml (which couldn't be found because I removed it).
Is there any configuration file in jboss where i can indicate that i want to use mysql-ds.xml & mysql database instead of hypersonic.
Please, help me to deal with this problem!
Barry Gaunt
Ranch Hand

Joined: Aug 03, 2002
Posts: 7729
Take a look at the notes available here.
I had to tweak them a bit, but was able to do all of the various activities eventually. Using MySql is covered for the CMP example.
[ October 09, 2003: Message edited by: Barry Gaunt ]

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subject: Need help urgent