如何使用Apache Directory API执行排序搜索

<dependency>
    <groupId>org.apache.directory.api</groupId>
    <artifactId>api-ldap-model</artifactId>
    <version>1.0.0-M29</version>
</dependency>
<dependency>
    <groupId>org.apache.directory.api</groupId>
    <artifactId>api-ldap-client-api</artifactId>
    <version>1.0.0-M29</version>
</dependency>
<dependency>
    <groupId>org.apache.directory.api</groupId>
    <artifactId>api-ldap-extras-codec</artifactId>
    <version>1.0.0-M29</version>
</dependency>
<dependency>
    <groupId>org.apache.directory.api</groupId>
    <artifactId>api-ldap-extras-util</artifactId>
    <version>1.0.0-M29</version>
</dependency>

import org.apache.directory.api.ldap.model.entry.Entry;
import org.apache.directory.api.ldap.model.exception.LdapException;
import org.apache.directory.api.ldap.model.message.*;
import org.apache.directory.ldap.client.api.*;

public class ApacheDirectoryExample {
    public static void main(String[] args) {
        // 创建 LDAP 连接配置
        LdapConnectionConfig config = new LdapConnectionConfig();
        config.setLdapHost("ldap.example.com");
        config.setLdapPort(389);
        config.setName("cn=admin,dc=example,dc=com");
        config.setCredentials("password");

        // 创建 LDAP 连接对象
        try (LdapConnection connection = new LdapNetworkConnection(config)) {
            // 连接到 LDAP 服务器
            connection.connect();

            // 创建排序搜索请求
            String baseDn = "dc=example,dc=com";
            String filter = "(objectClass=person)";
            SearchRequest searchRequest = new SearchRequestImpl();
            searchRequest.setBase(new Dn(baseDn));
            searchRequest.setFilter(filter);
            searchRequest.addControl(new SortRequestControlImpl(new SortKey("sn")));

            // 发送搜索请求并获取结果
            SearchCursor searchCursor = connection.search(searchRequest);
            while (searchCursor.next()) {
                Response response = searchCursor.get();
                if (response instanceof SearchResultEntry) {
                    Entry entry = ((SearchResultEntry) response).getEntry();
                    // 处理搜索结果
                }
            }

            // 断开 LDAP 连接
            connection.close();
        } catch (LdapException e) {
            e.printStackTrace();
        } catch (Exception e) {
            e.printStackTrace();
        }
    }
}