ldapsearch -H -x -s base -b cn=subschema objectclasses转成java代码

import javax.naming.; import javax.naming.directory.;

public class LDAPSearchExample {

public static void main(String[] args) {

  String ldapUrl = "<LDAP_URL>"; // Replace with your LDAP server URL
  String baseDN = "cn=subschema"; // Replace with your base DN
  String objectClasses = "objectclasses"; // Replace with the attribute you want to search

  try {
     // Set up the environment for creating the initial context
     Hashtable<String, Object> env = new Hashtable<String, Object>();
     env.put(Context.INITIAL_CONTEXT_FACTORY, "com.sun.jndi.ldap.LdapCtxFactory");
     env.put(Context.PROVIDER_URL, ldapUrl);
     env.put(Context.SECURITY_AUTHENTICATION, "none");

     // Create the initial context
     DirContext ctx = new InitialDirContext(env);

     // Search for the specified attribute
     SearchControls searchControls = new SearchControls();
     searchControls.setSearchScope(SearchControls.BASE_SCOPE);
     searchControls.setReturningAttributes(new String[] { objectClasses });
     NamingEnumeration<SearchResult> results = ctx.search(baseDN, "(objectclass=*)", searchControls);

     // Print out the results
     while (results.hasMore()) {
        SearchResult result = results.next();
        Attributes attrs = result.getAttributes();
        Attribute attr = attrs.get(objectClasses);
        if (attr != null) {
           System.out.println(attr.get());
        }
     }

     // Close the context when we're done
     ctx.close();
  } catch (NamingException e) {
     e.printStackTrace();
  }

} }