javaldap.java

JAVA调用ldap,这是一个simple的例子 很好地介绍了java是如何调用ldap,从而取出ldap的信息

package ldap;

import java.util.Hashtable;
import javax.naming.Context;
import javax.naming.ldap.LdapContext;
import javax.naming.ldap.InitialLdapContext;
import javax.naming.NamingEnumeration;
import javax.naming.directory.SearchControls;
import javax.naming.directory.SearchResult;
import javax.naming.NamingException;
import javax.naming.directory.Attribute;
import javax.naming.directory.Attributes;
import java.util.Enumeration;



public class JavaLdap {

	/**
	 * @param args
	 */
	public static void main(String[] args) {
		// TODO Auto-generated method stub
		JavaLdap dap=new JavaLdap();
		dap.GetADInfo();

	}
	  public void GetADInfo() {
		    Hashtable HashEnv = new Hashtable();

		    String LDAP_URL = "ldap://192.168.2.236:389"; 
		    String adminName = "CN=Administrator,CN=Users,DC=hotelvm,DC=com";
//		    String adminName = "hotelvm\\Administrator"; 
//		    adminName = "[e-mail]"; 
		    String adminPassword = "password.com"; 

		    HashEnv.put(Context.SECURITY_AUTHENTICATION, "simple"); 
		    HashEnv.put(Context.SECURITY_PRINCIPAL, adminName); 
		    HashEnv.put(Context.SECURITY_CREDENTIALS, adminPassword);
		    HashEnv.put(Context.INITIAL_CONTEXT_FACTORY,"com.sun.jndi.ldap.LdapCtxFactory"); 
		    HashEnv.put(Context.PROVIDER_URL, LDAP_URL);

		    try {
		      LdapContext ctx = new InitialLdapContext(HashEnv, null);
		      SearchControls searchCtls = new SearchControls(); 
		      searchCtls.setSearchScope(SearchControls.SUBTREE_SCOPE); 

		      String searchFilter = "objectClass=User"; 
		      //String searchFilter = "objectClass=organizationalUnit";//specify the LDAP search filter

		      String searchBase = "OU=WorkFlowUser,DC=hotelvm,DC=com"; //Specify the Base for the search
		      int totalResults = 0;

		      //Specify the attributes to return
		      //String returnedAtts[] = {"memberOf"};
		      String returnedAtts[] = {"cn"}; 

		      searchCtls.setReturningAttributes(returnedAtts); 

		      //Search for objects using the filter
		      NamingEnumeration answer = ctx.search(searchBase, searchFilter,searchCtls);
		      System.out.println("mmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmm");
		      while (answer.hasMoreElements()) {
		        SearchResult sr = (SearchResult) answer.next();
		        System.out.println("************************************************");
		        System.out.println(sr.getName());

		        Attributes Attrs = sr.getAttributes();
		        if (Attrs != null) {
		          try {
		            for (NamingEnumeration ne = Attrs.getAll(); ne.hasMore(); ) {
		              Attribute Attr = (Attribute) ne.next();

		              System.out.println("  AttributeID=" + Attr.getID().toString());

		              
		              for (NamingEnumeration e = Attr.getAll(); e.hasMore();totalResults++) {
		                System.out.println("    AttributeValues=" + e.next().toString());
		              }
		              System.out.println("    ---------------");

		             
		              Enumeration values = Attr.getAll();
		              if (values != null) { 
		                while (values.hasMoreElements()) {
		                  System.out.println("    AttributeValues=" + values.nextElement());
		                }
		              }
		              System.out.println("    ---------------");
		            }
		          }
		          catch (NamingException e) {
		            System.err.println("Throw Exception : " + e);
		          }
		        }
		      }
		      System.out.println("Number: " + totalResults);
		      ctx.close();
		    }

		    catch (NamingException e) {
		      e.printStackTrace();
		      System.err.println("Throw Exception :  " + e);
		    }
		  }



}