Connection Freeipa Authentication LDAP login, Java code demo

Import com.sun.org.apache.xerces.internal.impl.dv.util.*;  
Import Java.security.MessageDigest;  
Import java.security.NoSuchAlgorithmException;  
Import java.util.Hashtable;  
Import Java.util.logging.Level;  
Import Java.util.logging.Logger;  
Import Javax.naming.Context;
Import javax.naming.NamingException;
Import Javax.naming.directory.BasicAttribute;
Import javax.naming.directory.BasicAttributes;  
Import Javax.naming.directory.DirContext;
Import Javax.naming.directory.InitialDirContext;  
  
Import Javax.naming.directory.ModificationItem;  
  
    /** * User login authentication, LDAP Cross-domain authentication, through LDAP to update the user * * public class Ldaputil {private static DirContext ctx;  
  
    LDAP Server port defaults to 389 private static final String Ldap_url = "ldap://test.demo.com:389";  
  

    LDAP-driven private static final String ldap_factory = "Com.sun.jndi.ldap.LdapCtxFactory";  
    /**** test ****/public static void Main (string[] args) {getlogincontext (); }//By connecting the LDAP server to the userFor authentication, return LDAP object public static DirContext Getlogincontext () {String account = "demotest";//Impersonate user name String password = "12345678";  
            Analog password for (int i = 0; i < 5; i++) {//Authentication count Hashtable env = new Hashtable ();  
            Env.put (Context.security_authentication, "simple");  
            
            Env.put (context.security_credentials, password);
            Env.put (Context.security_principal, "uid=" + account + ", cn=users,cn=accounts,dc=demo,dc=com");  
            Env.put (Context.initial_context_factory, ldap_factory); 
            Env.put (Context.provider_url, Ldap_url); Which organization structure name cn= belongs to, ou= the hierarchy position number under an organizational structure name try {///Connect LDAP for authentication ctx = new Initi  
                Aldircontext (env);  
                SYSTEM.OUT.PRINTLN ("Successful Authentication");  
            System.out.println ("" "+ Account +" "User Login System Success"); catch (Javax.naming.AuthenticationException e) {System.out.prinTLN ("Authentication Failure"); catch (Namingexception err) {System.out.println ("--------->>" "+ Account +" "User authentication failed" "+ i +" "Times  
            ");  
                catch (Exception e) {System.out.println ("Authentication error:");  
            E.printstacktrace ();  
    } return CTX;   }  
  
}

Reference https://blog.csdn.net/u012411219/article/details/51331846