jsp ldap验证登录（二）

 上次写的程序存在很大的问题，就是子目录用户不能登录。所以我们要先通过用户cn获取到用户dn，然后再验证登录。

程序需要使用到jldap.jar  这个自己网上搜索下载。

 

获取DN的程序

 

package ldap;

import com.novell.ldap.LDAPConnection;
import com.novell.ldap.LDAPEntry;
import com.novell.ldap.LDAPException;
import com.novell.ldap.LDAPSearchResults;

public class getDN {
    public String getDN(String userName) {
        String ldaphost = "192.168.XX.XX";
        int ldapPort = LDAPConnection.DEFAULT_PORT;
        String searchBase = "dc=XX,dc=com";
        String searchFilter = "objectClass=*";
        int searchScope = LDAPConnection.SCOPE_SUB;
        LDAPConnection lc = new LDAPConnection();
        String dn = null;
        try {
            lc.connect(ldaphost, ldapPort);
            LDAPSearchResults searchResults = lc.search(searchBase,
                    searchScope, searchFilter, null, false);

            while (searchResults.hasMore()) {
                LDAPEntry nextEntry = null;
                nextEntry = searchResults.next();
                String str = nextEntry.getDN();
                String str1 = "cn=" + userName + "";
                if (str.contains(str1)) {
                    dn = str;
                    return dn;
                }
            }
        } catch (LDAPException t) {
            dn=null;
        }
        return dn;
    }
    /* public static void main(String []args){
            getDN conn = new getDN();
            System.out.println(conn.getDN("test1"));
        }
        */
}

 

 

验证登录

 

public boolean login(String name,String password) {
        boolean result = true;
         getDN getdn = new getDN();
        String ldapdn=getdn.getDN(name);
        DirContext ctx = null;
        Hashtable<String, String> env = new Hashtable<String, String>();
        env.put(Context.INITIAL_CONTEXT_FACTORY,
                "com.sun.jndi.ldap.LdapCtxFactory");
        env.put(Context.PROVIDER_URL, host);                    // LDAP host
        env.put(Context.SECURITY_AUTHENTICATION, "simple"); // 简单模式进行连接
        env.put(Context.SECURITY_PRINCIPAL,ldapdn);             // 用户名
        env.put(Context.SECURITY_CREDENTIALS, password);    // 密码传进去
        try {
            ctx = new InitialDirContext(env);

        } catch (Exception e) {
            result = false;
        }