getallattrs.java

JAVA 工作指南 可以说是程序员必备的东西哦

import javax.naming.*;
import javax.naming.directory.*;

import java.util.Hashtable;

/**
 * Demonstrates how to retrieve all attributes of a named object.
 *
 * usage: java GetAllAttrs
 */
class GetAllAttrs {
    static void printAttrs(Attributes attrs) {
	if (attrs == null) {
	    System.out.println("No attributes");
	} else {
	    /* Print each attribute */
	    try {
		for (NamingEnumeration ae = attrs.getAll();
		     ae.hasMore();) {
		    Attribute attr = (Attribute)ae.next();
		    System.out.println("attribute: " + attr.getID());

		    /* print each value */
		    for (NamingEnumeration e = attr.getAll();
			 e.hasMore();
			 System.out.println("value: " + e.next()))
			;
		}
	    } catch (NamingException e) {
		e.printStackTrace();
	    }
	}
    }

    public static void main(String[] args) {

	// Set up the environment for creating the initial context
        Hashtable<String, Object> env = new Hashtable<String, Object>(11);
	env.put(Context.INITIAL_CONTEXT_FACTORY, 
	    "com.sun.jndi.ldap.LdapCtxFactory");
	env.put(Context.PROVIDER_URL, "ldap://localhost:389/o=JNDITutorial");

	try {
	    // Create the initial context
	    DirContext ctx = new InitialDirContext(env);

	    // Get all the attributes of named object
	    Attributes answer = ctx.getAttributes("cn=Ted Geisel, ou=People");

	    // Print the answer
	    printAttrs(answer);

	    // Close the context when we're done
	    ctx.close();
	} catch (Exception e) {
	    e.printStackTrace();
	}
    }
}