Question

有没有办法使用java获取Active Directory中所有组的名称？

Answer 1

使用Java JNDI，搜索（objectclass = group）并请求cn属性。这将获得所有组名称。

代码示例：

import java.util.Hashtable;

import javax.naming.Context;
import javax.naming.NamingEnumeration;
import javax.naming.NamingException;
import javax.naming.directory.Attributes;
import javax.naming.directory.DirContext;
import javax.naming.directory.InitialDirContext;
import javax.naming.directory.SearchControls;
import javax.naming.directory.SearchResult;

public class Test {

    public static String ldapUri = "ldap://localhost";
    public static String usersContainer = "cn=users,dc=example,dc=com";

    public static void main(String args[]) {

        if (args.length != 2) {
            System.out.println("Usage: test userName password");
            return;
        }
        String username = args[0];
        String password = args[1];

        Hashtable env = new Hashtable();
        env.put(Context.INITIAL_CONTEXT_FACTORY, "com.sun.jndi.ldap.LdapCtxFactory");
        env.put(Context.PROVIDER_URL, ldapUri);
        env.put(Context.SECURITY_PRINCIPAL, username);
        env.put(Context.SECURITY_CREDENTIALS, password);
        try {
            DirContext ctx = new InitialDirContext(env);
            SearchControls ctls = new SearchControls();
            String[] attrIDs = { "cn" };
            ctls.setReturningAttributes(attrIDs);
            ctls.setSearchScope(SearchControls.ONELEVEL_SCOPE);

            NamingEnumeration answer = ctx.search(usersContainer, "(objectclass=group)", ctls);
            while (answer.hasMore()) {
                SearchResult rslt = (SearchResult) answer.next();
                Attributes attrs = rslt.getAttributes();
                System.out.println(attrs.get("cn"));
            }

            ctx.close();

        } catch (NamingException e) {
            e.printStackTrace();
        }

    }
}

Answer 2

您可以使用此库。它易于使用且功能强大

http://code.google.com/p/jedi-obi/

Answer 3

我使用Kalyan的示例来查询用户组，但发现尽管查询有效，但它并未返回所有用户组。经过一番挖掘，我开始意识到AD全球目录并基于this example，我能够修改Kalyan的答案，从全局目录中返回所有用户组。

所需的更改是：

向ldapUri

3268

将第一个参数设置为Context.search为""。

public static void main(String args[]) {
    String ldapUri = "ldap://ad.domain.com";

    if (args.length != 2) {
        System.out.println("Usage: test userName password");
        return;
    }
    String username = args[0];
    String password = args[1];

    Hashtable env = new Hashtable();
    env.put(Context.INITIAL_CONTEXT_FACTORY,
            "com.sun.jndi.ldap.LdapCtxFactory");
    env.put(Context.PROVIDER_URL, ldapUri + ":3268");
    env.put(Context.SECURITY_PRINCIPAL, username);
    env.put(Context.SECURITY_CREDENTIALS, password);
    try {
        DirContext context = new InitialDirContext(env);
        SearchControls searchControls = new SearchControls();
        String[] attrIDs = {"cn"};
        searchControls.setReturningAttributes(attrIDs);
        searchControls.setSearchScope(SearchControls.SUBTREE_SCOPE);

        NamingEnumeration answer = context.search("", "(objectclass=group)", searchControls);
        while (answer.hasMore()) {
            SearchResult rslt = (SearchResult) answer.next();
            Attributes attrs = rslt.getAttributes();
            System.out.println(attrs.get("cn"));
        }

        context.close();


    } catch (NamingException e) {
        e.printStackTrace();
    }

}

LDAP：如何获取Active Directory中的所有组？

3 个答案: