JNDI Administration in Weblogic 10.3

Question

This is my code:
InitialContext initialContext = new InitialContext();
Context context = (Context) initialContext.lookup("java:comp/env");
bootstrapFlag = (Boolean) context.lookup("bootStrapFlag");
Could anyone guide me how to configure the "bootStrapFlag" as a JNDI entry in Weblogic 10.3
Also please let me know if java.net.URL entry can be created in the Weblogic JNDI.
Thanks
Jayakumar

Answer 1

Hi,
If you are using Framework like Spring ...then you can use the following technique as well : http://jaysensharma.wordpress.com/2010/04/06/bindingaccessing-jndi-names-using-spring-framework/
Plain Java Implementation
If you want to Bind any object in the Server JNDI Tree (Emp, java.net.URL) ...then you can also use InitialContext.bind(String) method.
Example:
Step1). Create a Class "Employee.java" suppose you want to bind the Employee Object in the Server JNDI Tree... Make Sure that the Object is declared as java.io.Serializable
package pack;
public class Employee implements java.io.Serializable
private int empNo;
public Employee()
System.out.println("\n\n\t Employee Object Instentiated...With EmpId:0");
public Employee(int empNo)
System.out.println("\n\n\t Employee Object Instentiated...With EmpId:"+empNo);
Step2). Compile it and make a Jar of it...like "Employee.jar".
Step3). Make this JAR available in the Server Classpath...or you can paste this Jar in the Domain/Lib directory:
Example: C:\bea103\user_projects\domains\7001_Domain_Name\lib
Step4). Restart the Server sothat it can pick up the Employee.jar from the Classpath.
Step5). Write another Program as a Client "BindingStartUp.java" to Bind this Object in the Server JNDI tree...
import java.rmi.*;
import javax.naming.*;
import java.util.*;
public class BindingStartUp
public final static String JNDI_FACTORY = "weblogic.jndi.WLInitialContextFactory";
private static String serverUrl ="t3://localhost:7001";
public static void main(String ar[])throws Exception
InitialContext ic=null;
try{
Hashtable env = new Hashtable();
env.put(Context.INITIAL_CONTEXT_FACTORY, JNDI_FACTORY);
env.put(Context.PROVIDER_URL, serverUrl);
ic = new InitialContext(env);
catch(Exception e){
System.out.println("\n\n\t Unable To Get The InitialContext => "+e);
try{
pack.Employee emp=new pack.Employee(1000);
ic.rebind("EmpJndiName",emp);
System.out.println("\n\n\t Employee Object Binded in the JNDI Tree Of Server Suuccessfully");
System.out.println("\n\n\t You can use (pack.Emp)ic.lookup(\"EmpJndiName\");");
System.out.println("\t To Lookup the Employee Object from the JNDI Tree");
catch(Exception e)
System.out.println("\n\n\t Unable To Bind => "+e);
e.printStackTrace();
Step6). Now as soon as you run this Client Program it will,Bind this Object in the Server JNDI tree...You can verify it from the AdminConsole---JNDITree section
Step7). Now u can write the Smilar code ...to Lookup the Object from JNDI tree....
You can use (pack.Emp)ic.lookup(\"EmpJndiName\");
Thanks
Jay SenSharma
http://jaysensharma.wordpress.com (WebLogic Wonders Are Here)
Edited by: Jay SenSharma on Feb 24, 2010 8:06 PM