如何在Springboot中从Active Directory LDAP服务器获取所有组用户？

<dependency>
    <groupId>org.springframework.boot</groupId>
    <artifactId>spring-boot-starter-data-ldap</artifactId>
</dependency>

spring:
  ldap:
    urls: ldap://ldap.example.com:389
    base: dc=example,dc=com
    username: cn=admin,dc=example,dc=com
    password: adminpassword

import org.springframework.ldap.odm.annotations.Attribute;
import org.springframework.ldap.odm.annotations.Entry;
import org.springframework.ldap.odm.annotations.Id;

@Entry(objectClasses = {"person", "top"})
public class User {
    @Id
    private Name dn;
    
    @Attribute(name = "cn")
    private String username;
    
    @Attribute(name = "mail")
    private String email;
    
    // Getters and setters
}

import org.springframework.data.ldap.repository.LdapRepository;

public interface UserRepository extends LdapRepository<User> {
    List<User> findAll();
}

import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;

@Service
public class UserService {
    private final UserRepository userRepository;
    
    @Autowired
    public UserService(UserRepository userRepository) {
        this.userRepository = userRepository;
    }
    
    public List<User> getAllUsers() {
        return userRepository.findAll();
    }
}