如何使用Hibernate搜索在多个字段上进行搜索？

// 配置Hibernate Search
Configuration configuration = new Configuration();
configuration.setProperty("hibernate.search.default.directory_provider", "filesystem");
configuration.setProperty("hibernate.search.default.indexBase", "/path/to/index");

// 定义实体类
@Entity
@Indexed
public class Product {
    @Id
    @GeneratedValue
    private Long id;

    @Field
    private String name;

    @Field
    private String description;

    // 省略其他字段和方法
}

// 创建全文索引
FullTextEntityManager fullTextEntityManager = Search.getFullTextEntityManager(entityManager);
fullTextEntityManager.createIndexer().startAndWait();

// 执行搜索
FullTextSession fullTextSession = Search.getFullTextSession(entityManager.unwrap(Session.class));
QueryBuilder queryBuilder = fullTextSession.getSearchFactory()
        .buildQueryBuilder().forEntity(Product.class).get();

Query luceneQuery = queryBuilder
        .keyword()
        .onFields("name", "description")
        .matching("keyword")
        .createQuery();

FullTextQuery jpaQuery = fullTextSession.createFullTextQuery(luceneQuery, Product.class);
List<Product> results = jpaQuery.getResultList();