在java中使用Ldap获取组

Question

如何使用Active Directory获取特定用户组？我正在获得所有组,但我想获得用户所属的组

  public static String ldapUri = "ldap://pdc.example.com:389";
  public static String usersContainer = "cn=users,dc=example,dc=com";  
  public ArrayList<String> getUserGroups(String email, String password){
    ArrayList<String> list = new   ArrayList<String>();
       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, email);
    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();
        String groups = attrs.get("cn").toString();
        String [] groupname = groups.split(":");
        String userGroup = groupname[1];
        System.out.println(attrs.get("cn"));
        }
        ctx.close();
        } catch (NamingException e) {
        e.printStackTrace();
    }
    return list;
  }

Answer 1

我通过使用它来获取用户的所有组

String[] attrIDs = {"cn"};
ctls.setReturningAttributes(attrIDs);
String[] attributes = {"memberOf"};
ctls.setReturningAttributes(attributes);
NamingEnumeration<?> answer = ctx.search(usersContainer, "(&(objectclass=user)(sAMAccountName=userName))", ctls);

Answer 2

如果您使用的是活动目录。用户具有属性“memberOf”；触发特定用户的搜索查询并在返回属性中包含“memberOf”。

String[] attrIDs = { "cn", "memberOf" };
ctls.setReturningAttributes(attrIDs);
ctls.setSearchScope(SearchControls.ONELEVEL_SCOPE);

NamingEnumeration answer = ctx.search(usersContainer, "(&(objectclass=person)(cn=*sahi*))", ctls);

“memberOf”属性保存用户所属的组。