Accessing ACTIVE DIRECTORY FROM JAVA CODE

Question

I am trying to access the Active DIrectory user through a java code.
Kindly let me know the steps apart from creating the user in ADS to be followed so that the following java code may work.
presently it is giving the following error.
problem serching the directory
//package com.axa;
import java.util.Hashtable;
import javax.naming.ldap.*;
import javax.naming.directory.*;
import javax.naming.*;
public class AdHelper
     public static void main(String args[])
System.out.println("1");
          Hashtable env = new Hashtable();
          String adminName = "CN=user,CN=Users,DC=BDC4AXA.CO.IN";
          String adminPassword = "user";
          String ldapURL = "ldap://10.1.242.51:636";
System.out.println("2");
          env.put(Context.INITIAL_CONTEXT_FACTORY,"com.sun.jndi.ldap.LdapCtxFactory");
          env.put(Context.SECURITY_AUTHENTICATION,"simple");
          env.put(Context.SECURITY_PRINCIPAL,adminName);
          env.put(Context.SECURITY_CREDENTIALS,adminPassword);
          env.put(Context.PROVIDER_URL,ldapURL);
System.out.println("3");
          try {
               // Create the initial directory context
               DirContext ctx = new InitialLdapContext(env,null);
System.out.println("4");
               SearchControls searchCtls = new SearchControls();
          System.out.println("5");
               //Specify the attributes to return
               String returnedAtts[]={"sn","givenName","mail"};
               searchCtls.setReturningAttributes(returnedAtts);
               //Specify the search scope
               searchCtls.setSearchScope(SearchControls.SUBTREE_SCOPE);
               //specify the LDAP search filter
               String searchFilter = "(&(objectClass=user)(mail=*))";
System.out.println("6");
               //Specify the Base for the search
               String searchBase = "DC=ANTIPODES,DC=COM";
System.out.println("7");
               //initialize counter to total the results
               int totalResults = 0;
               // Search for objects using the filter
               NamingEnumeration answer = ctx.search(searchBase, searchFilter, searchCtls);
System.out.println("8");               //Loop through the search results
               while (answer.hasMoreElements()) {
          SearchResult sr = (SearchResult)answer.next();
               totalResults++;
System.out.println("9");
               System.out.println(">>>" + sr.getName());
               Attributes attrs = sr.getAttributes();
                    if (attrs != null) {
                         try {
                         System.out.println(" surname: " + attrs.get("sn").get());
                         System.out.println(" firstname: " + attrs.get("givenName").get());
                         System.out.println(" mail: " + attrs.get("mail").get());
                         catch (NullPointerException e)     {
                         System.out.println("Errors listing attributes: " + e);
               System.out.println("Total results: " + totalResults);
               ctx.close();
               catch (NamingException e) {
               System.err.println("Problem searching directory: " + e);
          catch(Exception e)
               System.out.println("Unhandled Exception: " + e);
}

Answer 1

This is what I have for my LDAP connection.
public Hashtable<String, String> env = null;
     public LdapContext ldapContext = null;
     public Control[] connCtls = null;
     Context ctx;
     DirContext dirContext;
public LDAPAuth(String ldapurl) {
          ldapurl = "ldap://" + serverIP + ":389";
          try {
               env = new Hashtable<String, String>();
               env.put(Context.INITIAL_CONTEXT_FACTORY,
                         "com.sun.jndi.ldap.LdapCtxFactory");
               env.put(Context.SECURITY_AUTHENTICATION, "simple");
               env.put(Context.PROVIDER_URL, ldapurl);
               env.put(Context.SECURITY_PRINCIPAL, "cn=username,cn=users" + baseName);
               env.put(Context.SECURITY_CREDENTIALS, "password" + baseName);
               env.put(Context.SECURITY_PROTOCOL, "ssl");
               ctx = new InitialContext(env);
          } catch (Exception e) {
               System.out.println(" bind error: " + e);
               e.printStackTrace();
          try {
               ldapContext = new InitialLdapContext(env, connCtls);
          } catch (AuthenticationException e) {
               System.out.println("Authentication exception " + e);
          } catch (NamingException e) {
               System.out.println("Naming exception " + e);
     public Attributes fetch(String username) throws NamingException {
          DirContext ctx = new InitialDirContext(env);
          Attributes attributes = ctx.getAttributes(username);
          try {
               System.out.println("fetching: " + username);
               Object obj = ctx.lookup("cn=" + username
                         + baseName);
               System.out.println("cn=" + username + baseName + "is bound to: " + obj);
               //attributes = obj.getAttributes("");
               for (NamingEnumeration<?> ae = attributes.getAll(); ae
                         .hasMoreElements();) {
                    Attribute attr = (Attribute) ae.next();
                    String attrId = attr.getID();
                    for (NamingEnumeration<?> vals = attr.getAll(); vals.hasMore();) {
                         String value = vals.next().toString();
                         System.out.println(attrId + ": " + value);
          } catch (NamingException e) {
               System.out.println(" Problem looking up " + username + baseName + ". " + e);
          return attributes;
Now, I'm sure it has something to do with how I'm passing in the username and the groups. But I want to have ANY user log in, not just this test. I may be a little confused on how this works, but if anyone could explain to me why what I am trying to do doesn't work, I would greatly appreciate it.
Thanks in advance,
Tetsuya.
Edited by: tetsuyamasamune on Sep 8, 2008 3:55 PM