Java LDAP验证

package com.portal.demo;

import java.util.Hashtable;

import javax.naming.AuthenticationException;
import javax.naming.Context;
import javax.naming.NamingException;
import javax.naming.directory.InitialDirContext;

public class Ady {
    public static void main(String[] args) {
        String username = "xxxx@sinsight.com";
        String password = "xxxxx";
        new Ady().ady(username, password);
    }
    
    /**
     * 连接AD域,验证账号密码是否正确
     * 
     * @param username
     * @param password
     * @throws NamingException
     */
    public void ady(String username, String password){
        InitialDirContext ctx = null;

        String host = "sinsight.com";
        String post = "389";
        Hashtable<String, String> hashtable = new Hashtable<String, String>();

        hashtable.put(Context.SECURITY_AUTHENTICATION, "simple"); // LDAP访问安全级别(none,simple,strong)
        hashtable.put(Context.SECURITY_PRINCIPAL, username); // AD的用户名
        hashtable.put(Context.SECURITY_CREDENTIALS, password); // AD的密码
        hashtable.put(Context.INITIAL_CONTEXT_FACTORY, "com.sun.jndi.ldap.LdapCtxFactory"); // LDAP工厂类
        hashtable.put("com.sun.jndi.ldap.connect.timeout", "3000");// 连接超时设置为3秒
        hashtable.put(Context.PROVIDER_URL, "ldap://" + host + ":" + post);
        try {
            ctx = new InitialDirContext(hashtable);// 初始化上下文
            System.out.println("身份验证成功!");
        } catch (AuthenticationException e) {
            System.out.println("身份验证失败!");
            e.printStackTrace();
        } catch (javax.naming.CommunicationException e) {
            System.out.println("AD域连接失败!");
            e.printStackTrace();
        } catch (Exception e) {
            System.out.println("身份验证未知异常!");
            e.printStackTrace();
        } finally {
            if (null != ctx) {
                try {
                    ctx.close();
                    ctx = null;
                } catch (Exception e) {
                    e.printStackTrace();
                }
            }
        }

    }
}