java获取ldap用户信息（包含加密的密码）

import java.util.ArrayList;
import java.util.HashMap;
import java.util.Hashtable;
import java.util.List;
import java.util.Map;
import javax.naming.Context;
import javax.naming.NamingEnumeration;
import javax.naming.NamingException;
import javax.naming.directory.Attribute;
import javax.naming.directory.SearchControls;
import javax.naming.directory.SearchResult;
import javax.naming.ldap.Control;
import javax.naming.ldap.InitialLdapContext;
import javax.naming.ldap.LdapContext;

public class LdapUtil {
	public static void main(String[] args) {
		
		readLdap();
	}

    
    
    /**
     * 认证并获取用户信息
     * 
     */
    public static void readLdap(){
    	String url = "ldap://10.100.123.12:389/";
		String basedn = "dc=test,dc=wx,dc=com";  // basedn
		String factory = "com.sun.jndi.ldap.LdapCtxFactory";
		String root = "cn=admin,dc=test,dc=wx,dc=com";  // 用户
		String pwd ="test123";  // pwd
		String simple="simple";
		Hashtable env = new Hashtable();
		env.put(Context.INITIAL_CONTEXT_FACTORY,factory);
		env.put(Context.PROVIDER_URL, url);
		env.put(Context.SECURITY_AUTHENTICATION, simple);
		env.put(Context.SECURITY_PRINCIPAL, root);
		env.put(Context.SECURITY_CREDENTIALS, pwd);
		LdapContext ctx = null;
		Control[] connCtls = null;
		try {
			ctx = new InitialLdapContext(env, connCtls);
			System.out.println( "认证成功" ); 
		}catch (javax.naming.AuthenticationException e) {
            System.out.println("认证失败：");
            e.printStackTrace();
            return;
        } catch (Exception e) {
            System.out.println("认证出错：");
            e.printStackTrace();
            return;
        }
		List> lm=new ArrayList>();
		
		try {
				//过滤条件
	            String filter = "(&(objectClass=*)(uid=*))";
				String[] attrPersonArray = { "uid", "userPassword", "displayName", "cn", "sn", "mail", "description" };
	            SearchControls searchControls = new SearchControls();//搜索控件
	            searchControls.setSearchScope(2);//搜索范围
	            searchControls.setReturningAttributes(attrPersonArray);
	            //1.要搜索的上下文或对象的名称；2.过滤条件，可为null，默认搜索所有信息；3.搜索控件，可为null，使用默认的搜索控件
	            NamingEnumeration answer = ctx.search(basedn, filter.toString(),searchControls);
	            while (answer.hasMore()) {
	                SearchResult result = (SearchResult) answer.next();
	                NamingEnumeration attrs = result.getAttributes().getAll();
	                Map map = new HashMap();
	                
	                while (attrs.hasMore()) {
	                    Attribute attr = (Attribute) attrs.next();
	                    if("userPassword".equals(attr.getID())){
	                    	Object value = attr.get();
	                        map.put(attr.getID(), new String((byte [])value));
	                    }else{
	                    	map.put(attr.getID(), attr.get());
	                    }
	                }
	                
	                if(map!=null){
                    	System.out.println(map);
                    	lm.add(map);
                    }
	                
	            }
			
		} catch (Exception e) {
			e.printStackTrace();
		}
		
		try {
			if(ctx != null)
				ctx.close();
		} catch (NamingException e) {
			e.printStackTrace();
		}
	}

    
}