The Java Naming and Directory Interface (JNDI) is an application programming interface
(API) for accessing different kinds of naming and directory services. JNDI is not
specific to a particular naming or directory service, it can be used to access many
 different kinds of systems including file systems; distributed objects systems
 like CORBA, Java RMI, and EJB; and directory services like LDAP, Novell NetWare, and NIS+.

JNDI is similar to JDBC in that they are both Object-Oriented Java APIs that
 provide a common abstraction for accessing services from different vendors.
 While JDBC can be used to access a variety of relational databases,
 JNDI can be used to access a variety of of naming and directory services.

Weblogic JNDI Look Up:

Two steps , get obtain the InitialContext(), lookup() or Register by using Bind();

Context ctx = null;
Hashtable ht = new Hashtable();
ht.put(Context.INITIAL_CONTEXT_FACTORY,
"weblogic.jndi.WLInitialContextFactory");
ht.put(Context.PROVIDER_URL,
"t3://localhost:7001");

try {
ctx = new InitialContext(ht);
ctx.bind("my_object", MyObect);
ServiceBean bean = (ServiceBean)ctx.lookup("ejb.serviceBean");
}
catch (NamingException e) {
// a failure occurred
}

Spring JNDI tag:
   <bean id="jndiTemplate" class="org.springframework.jndi.JndiTemplate">
        <property name="environment">
            <props>
                <prop key="java.naming.factory.initial">
    com.sun.jndi.fscontext.RefFSContextFactory</prop>
                <prop key="java.naming.provider.url">file:c:/temp</prop>
            </props>
        </property>
    </bean>
    <bean id="jndiDataSource" class="
 org.springframework.jndi.JndiObjectFactoryBean">
        <property name="jndiTemplate">
          <ref bean="jndiTemplate"/>
        </property>
        <property name="jndiName">
              <value>MYCONNECTIONKEY</value>
        </property>
      </bean>

Web Sphere JNDI :

 Properties p = new Properties();
 p.put("org.omg.CORBA.ORBClass","com.sun.CORBA.iiop.ORB");

    p.setProperty( javax.naming.Context.INITIAL_CONTEXT_FACTORY,
    "com.ibm.websphere.naming.WsnInitialContextFactory" );

    p.setProperty( "java.naming.provider.url", "iiop://HOSTNAME:PORT" );
   
    String connectionfactoryjndi="jms/testQCF";
    String sendQueueName="jms/destOutboundQ";

    Context jndiContext = new InitialContext();
    jndiContext = new InitialContext( p );

Back to top