我想显示LDAP目录模式中存在的所有对象类,以帮助用户输入可用的对象类以添加新条目.

DirContext schema = ctx.getSchema("");
Attributes answer = schema.getAttributes("ClassDefinition/person");

但这只显示有关人的信息.

最佳答案:

您必须查询子模式子条目,即cn = schema
(以下代码已经针对Apache Directory Server进行了测试)

DirContext ctx = new InitialLdapContext( env, null );

SearchControls searchControls = new SearchControls();
searchControls.setSearchScope( SearchControls.OBJECT_SCOPE );
searchControls.setReturningAttributes( new String[]
    { "objectClasses" } );
NamingEnumeration<SearchResult> results = ctx.search( "cn=schema", "(ObjectClass=*)", searchControls );

SearchResult result = results.next();
Attributes entry = result.getAttributes();

Attribute objectClasses = entry.get( "objectClasses" );
System.out.println( objectClasses );