如何在Spring CrudRepository中使用固定值？

import org.springframework.data.repository.CrudRepository;

public interface UserRepository extends CrudRepository<User, Long> {
    // 自定义查询方法
    User findByUsernameAndStatus(String username, String status);
}

import org.springframework.data.jpa.repository.Query;
import org.springframework.data.repository.CrudRepository;

public interface UserRepository extends CrudRepository<User, Long> {
    // 使用@Query注解指定查询语句
    @Query("SELECT u FROM User u WHERE u.username = ?1 AND u.status = ?2")
    User findByUsernameAndStatus(String username, String status);
    
    // 使用方法名规则自动生成查询语句
    User findByUsername(String username);
}

@Service
public class UserService {
    @Autowired
    private UserRepository userRepository;
    
    public User getUserByUsernameAndStatus(String username, String status) {
        return userRepository.findByUsernameAndStatus(username, status);
    }
    
    public User getUserByUsername(String username) {
        return userRepository.findByUsername(username);
    }
}