您可以使用Apache Directory Studio来搜索自特定日期以来未更新的LDAP属性。以下是一个使用Java代码的示例，演示如何实现此功能：

import org.apache.directory.api.ldap.model.cursor.Cursor;
import org.apache.directory.api.ldap.model.entry.Entry;
import org.apache.directory.api.ldap.model.message.SearchScope;
import org.apache.directory.api.ldap.model.name.Dn;
import org.apache.directory.ldap.client.api.LdapConnection;
import org.apache.directory.ldap.client.api.LdapNetworkConnection;
import org.apache.directory.ldap.client.api.SearchCursor;
import org.apache.directory.ldap.client.api.SearchRequest;
import org.apache.directory.ldap.client.api.SearchResponse;

import javax.naming.NamingException;
import java.io.IOException;
import java.text.SimpleDateFormat;
import java.util.Date;

public class LdapSearch {
    public static void main(String[] args) {
        String ldapHost = "your_ldap_host";
        int ldapPort = 389;
        String bindDn = "your_bind_dn";
        String bindPassword = "your_bind_password";
        String searchBaseDn = "your_search_base_dn";
        String attributeToCheck = "your_attribute_to_check";
        String dateFormat = "yyyyMMddHHmmss";

        // Get the date from which you want to search
        SimpleDateFormat sdf = new SimpleDateFormat(dateFormat);
        Date fromDate = null;
        try {
            fromDate = sdf.parse("20210101000000"); // Change to your desired date
        } catch (java.text.ParseException e) {
            e.printStackTrace();
        }

        // Connect to LDAP server
        LdapConnection connection = new LdapNetworkConnection(ldapHost, ldapPort);
        try {
            connection.bind(bindDn, bindPassword);
            System.out.println("Connected to LDAP server");

            // Create the search request
            SearchRequest searchRequest = new SearchRequest();
            searchRequest.setScope(SearchScope.SUBTREE);
            searchRequest.addAttributes(attributeToCheck);
            searchRequest.setTimeLimit(0);
            searchRequest.setBase(new Dn(searchBaseDn));
            searchRequest.setFilter("(" + attributeToCheck + "<=" + sdf.format(fromDate) + ")");

            // Execute the search request
            SearchCursor searchCursor = connection.search(searchRequest);
            while (searchCursor.next()) {
                SearchResponse searchResponse = searchCursor.get();
                Cursor entryCursor = searchResponse.getEntryCursor();
                while (entryCursor.next()) {
                    Entry entry = entryCursor.get();
                    System.out.println("DN: " + entry.getDn());
                    System.out.println("Last Modified Date: " + entry.get(attributeToCheck).getString());
                }
            }
        } catch (IOException | NamingException e) {
            e.printStackTrace();
        } finally {
            // Disconnect from LDAP server
            if (connection != null && connection.isConnected()) {
                try {
                    connection.unBind();
                    connection.close();
                    System.out.println("Disconnected from LDAP server");
                } catch (IOException e) {
                    e.printStackTrace();
                }
            }
        }
    }
}

请确保替换示例代码中的以下值：

• your_ldap_host：您的LDAP服务器主机名或IP地址。
• ldapPort：您的LDAP服务器端口号（通常为389）。
• your_bind_dn：用于绑定到LDAP服务器的管理员DN。
• your_bind_password：用于绑定到LDAP服务器的管理员密码。
• your_search_base_dn：要搜索的LDAP条目的基本DN。
• your_attribute_to_check：要检查的属性名称。
• fromDate：要搜索自的日期。

此示例代码使用Apache Directory API来执行LDAP搜索。它首先建立与LDAP服务器的连接，然后执行搜索请求，根据提供的属性和日期过滤结果。最后，它遍历搜索结果并打印出条目的DN和最后修改日期。

请注意，此示例代码仅提供了一个简单的框架，您可能需要根据您的LDAP服务器的配置和要搜索的属性进行适当的修改。