java访问LDAP服务器

java 代码

一共两个java类，加一个配置文件

LDAP.java---------------连接LDAP服务器，判断用户名密码正确与否

UMParas.java----------jDom解析xml配置文件

ldapconfig.xml---------配置文件，里面有服务器的参数信息

LDAP.java 代码

package ldap2;

import java.util.Hashtable;
import javax.naming.AuthenticationException;
import javax.naming.Context;
import javax.naming.InitialContext;
import javax.naming.NamingException;
import javax.naming.directory.DirContext;

public class LDAP {

    private Hashtable env = null;

    private DirContext ctx = null;

    private boolean islogin = false;

    StringBuffer url;

    String host;

    String port;

    String admin;

    String password;

    String baseDN;

    public LDAP(String id, String pwd) {
        try {
            host = UMParas.getPara("hostname");
            port = UMParas.getPara("port");
            baseDN = UMParas.getPara("basedn");
            admin = UMParas.getPara("admin");
            password = UMParas.getPara("pwd");
            url = new StringBuffer("LDAP://");
            url.append(host).append(":").append(port);
            url.append("/").append(baseDN);

        } catch (Exception e) {
            e.printStackTrace();
            System.out.println("");
        }
        //      pwd="secret";
        env = new Hashtable();

        env.put("java.naming.factory.initial",
                "com.sun.jndi.ldap.LdapCtxFactory");
        env.put("java.naming.provider.url", url.toString());
        env.put(Context.SECURITY_AUTHENTICATION, "simple");

        env.put("java.naming.security.principal", admin);
        env.put("java.naming.security.credentials", password);
        System.out.println("-------------");
    }

    public boolean checkAd() {                      //admin用户验证
        try {
            System.out.println("-----ddd--------");
            InitialContext iCnt = new InitialContext(env);
            System.out.println("-------eee------");
            islogin = true;
        } catch (AuthenticationException aue) {
            //            aue.printStackTrace();
            islogin = false;

        } catch (NamingException e) {

            e.printStackTrace();
        } catch (Exception eee) {
            eee.printStackTrace();

        } finally {
            try {
                ctx.close();
            } catch (Exception ie) {

            }
        }
        return islogin;
    }

    public boolean userLogin(String userName, String password) {  //新建用户验证。
        Hashtable envi = new Hashtable();
        try {
            envi.put("java.naming.factory.initial",
                    "com.sun.jndi.ldap.LdapCtxFactory");
            envi.put("java.naming.provider.url", url.toString());
            envi.put(Context.SECURITY_AUTHENTICATION, "simple");
            envi.put("java.naming.security.principal", userName);
            envi.put("java.naming.security.credentials", password);
            InitialContext iCnt = new InitialContext(envi);
            return true;
        } catch (Exception e) {
            //e.printStackTrace();
            return false;
        } finally {
            try {
                ctx.close();
            } catch (Exception ie) {

            }
        }
    }
}

 

 

UMParas.java 代码

package ldap2;

import java.io.*;
import java.util.*;
import org.jdom.*;
import org.jdom.input.SAXBuilder;

public class UMParas {

    private static HashMap prop;

    private static long lastLoadTime;

    private static long interval = 0x186a0L; //refresh per 100 second
    //    static Class class$0; /* synthetic field */

    public UMParas() {
    }

    //input an para and return the result
    public static synchronized String getPara(String paras)
            throws IllegalArgumentException {
        if (paras == null || paras.trim().length() == 0)
            throw new IllegalArgumentException("Parameter's value invalid.");
        long currentTime = System.currentTimeMillis();
        if (prop == null || currentTime - lastLoadTime > interval)
            reloadDom();
        Object obj = prop.get(paras);
        if (obj != null)
            return (String) obj;
        else
            return null;
    }

    //load the xml file
    private static synchronized void reloadDom() {
        if (prop == null)
            prop = new HashMap();
        SAXBuilder builder = new SAXBuilder();
        Document read_doc = null;
        try {
            read_doc = builder.build(UMParas.class
                    .getResource("ldapconfig.xml"));
        } catch (FileNotFoundException e) {
            e.printStackTrace();
        } catch (JDOMException e) {
            e.printStackTrace();
        } catch (IOException e) {
            e.printStackTrace();
        }
        Element rootElement = read_doc.getRootElement();
        List list = rootElement.getChildren("para");
        for (Iterator i = list.iterator(); i.hasNext();) {
            Element current = (Element) i.next();
            List item = current.getChildren("item");
            Attribute code;
            Attribute value;
            for (Iterator j = item.iterator(); j.hasNext(); prop.put(code
                    .getValue(), value.getValue())) {
                Element init = (Element) j.next();
                code = init.getAttribute("code");
                value = init.getAttribute("value");
            }

        }
        System.out.println("load sucess");
        lastLoadTime = System.currentTimeMillis();
    }

    public static void main(String args[]) {
        System.out.println(getPara("hostname"));
    }

}

 

ldapconfig.xml 代码

<?xml version="1.0" encoding="GBK"?>
<sys_para>
  <para>
    <item code="hostname"        value="192.168.1.106"      description="LDAP服务器IP"/>
    <item code="port"            value="10389"                  description="服务器端口"/>
    <item code="admin"           value="uid=admin,ou=system"                description="管理员帐号"/>
    <item code="pwd"             value="secret"             description="密码"/>
    <item code="basedn"          value="ou=system"                  description="组织名(基准DN)"/>
  </para>
</sys_para>