Question

‘java:comp/env/jdbc/MY_SQL_DS’ does not work. I get a Naming Exception: NameNotFoundException. neither works ‘MY_SQL_DS’ alone.name exception again.

I created another JNDI for a Mail Session named ‘MY_MailSession’ and reference it like (javax.mail.Session) ctx.lookup( ‘MY_MailSession’ ) which works…

what is the convention to refer the JDBC DataSource then?

Answer 1

I solved it the following way: hope this helps others having the same issue/problem afterwards…

protected Connection getConnection() {             try {                 if (connection == null || connection.isClosed()) {                     if (dataSource == null) {                         // impliziter Initial Context von WebLogic ApplicationServer Environment                         java.util.Hashtable environment = new java.util.Hashtable();                         environment.put(Context.INITIAL_CONTEXT_FACTORY, 'weblogic.jndi.WLInitialContextFactory');                         Context wlsic = new InitialContext(environment);                         showJndiContext( wlsic, '', '');                          // logischer JNDI Rootcontext der Serverkomponente, kann mehrfach verwendet werden                         Context ctx = (Context) wlsic.lookup('java:comp/env');                          showJndiContext( ctx, '', '');                          // weiter mit Resourcenpfad                         dataSource = (DataSource) ctx.lookup('MY_SQL_DS');                     }                     connection = dataSource.getConnection();                 }             }             catch (NamingException ne) {                 ne.printStackTrace();                 log.error(ne);             }             catch (SQLException sqlEx) {                 sqlEx.printStackTrace();                 log.error(sqlEx.getMessage());             }             return connection;         }          public static void showJndiContext(Context ctx, String name, String space) {             if (null == name)                 name = '';             if (null == space)                 space = '';              try {                 NamingEnumeration en = ctx.list(name);                 while (en.hasMoreElements()) {                     String delim = (null != name && 0 < name.length()) ? '/' : '';                     NameClassPair nc = (NameClassPair) en.next();                     System.out.println(space + name + delim + nc);                     if (40 > space.length())                         showJndiContext(ctx, nc.getName(), '    ' + space);                 }             }             catch (javax.naming.NamingException ex) {                 //System.out.println( ex );             }         }