如何通过MongoDB仓库在Spring Boot中查找不是Id的其他事物

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

@Document(collection = "products")
public class Product {
    @Id
    private String id;
    private String name;
    private String category;
    
    // 省略构造函数、getter和setter方法
}

public interface ProductRepository extends MongoRepository<Product, String> {
    List<Product> findByCategoryNot(String category);
}

@Service
public class ProductService {
    @Autowired
    private ProductRepository productRepository;
    
    public List<Product> findProductsByCategoryNot(String category) {
        return productRepository.findByCategoryNot(category);
    }
}