SpringLdap.java

// Setup the LDAP client (normally done via Spring context file).
LdapContextSource contextSource = new LdapContextSource();
contextSource.setUrl("ldap://localhost:389");
contextSource.setBase("DC=COMPANY,DC=COM");
contextSource.setUserDn("user@test.com");
contextSource.setPassword("password");
contextSource.afterPropertiesSet();

LdapTemplate ldapTemplate = new LdapTemplate(contextSource);
ldapTemplate.afterPropertiesSet();

// Perform the authentication.
Filter filter = new EqualsFilter("sAccountName", "testuser");

boolean authed = ldapTemplate.authenticate("ou=people,ou=myrealm",
    filter.encode(),
    "user-password");

// Display the results.
System.out.println("Authenticated: " + authed);