Problem using DataSource for JDBC applications

Question

import javax.sql.*;
import java.sql.*;
import java.io.*;
import java.text.*;
import javax.naming.*;
public class CreateMovieTables {
     //static String driver="COM.cloudscape.core.JDBCDriver";
     //static String url="jdbc:cloudscape:";
     String leadActor,title,leadActress,type,dateOfRelease;
     Connection connection;
     Statement statement;
     DataSource dataSource;
     public void initialize() throws SQLException,NamingException{
          //Class.forName(driver);
          Context initialContext = new InitialContext();
          //connection = DriverManager.getConnection(url + "Movies;create=true");
          dataSource = (DataSource) initialContext.lookup("jdbc/Cloudscape");
          connection = dataSource.getConnection();
the code goes on
when i start the j2ee sdk server, the cloudscape server the message i get when i run the program is...
No local string for datasource.wrongclient
java.sql.SQLException:
at com.sun.enterprise.resource.JdbcDataSource.getConnection(JdbcDataSource.java:40)
at CreateMovieTables.initialize(CreateMovieTables.java:23)
at CreateMovieTables.main(CreateMovieTables.java:86)
can anyone please suggest as to where i may be going wrong
thanx
-NDK

Answer 1

I don't agree that a User or System DSN is needed - that's a Windows idiom.
I haven't used the J2EE SDK to set up a data source, but I know that when I do it in Tomcat I've got to put a <resource-ref> tag in the web.xml that identifies the JNDI lookup string, and then the JDBC driver/URL/username/password details under a <Resource> tag in the context.xml to tell the data source how to create the JDBC connection.
My <resource-ref> name is "jdbc/APIPrototype". My JNDI lookup string looks like "java:comp/env/jdbc/DataSourceName".
You've got to do more than just put the JNDI lookup string in the Context lookup. Your error message sounds like the server is saying you've haven't done that set-up work.
Just a guess - perhaps it's something else, but I couldn't tell from your note. - MOD