java - Hibernate + Lucene - 通配符搜索返回空结果

Question

我写了一篇关于 Hibernate 搜索的文章，通过通配符搜索数据库表。

所以我已将其添加到我的 pom.xml 中:

    <dependency>
        <groupId>org.hibernate</groupId>
        <artifactId>hibernate-search-orm</artifactId>
        <version>5.5.4.Final</version>
    </dependency>

设置目录提供程序:

properties.put("hibernate.search.default.directory_provider", "ram");

并在我的实体上定义索引，以便搜索机制可见:

@Entity
@Table(name = "CUSTOM_ENTITY")
@Audited
@Indexed
public class CustomEntity implements Serializable {

    @Id
    @GeneratedValue(strategy = GenerationType.IDENTITY)
    @Column(name = "ID")
    @DocumentId
    private Long id;

    @Column(name = "NAME1", nullable = false)
    @NotEmpty
    @Field(index = Index.YES, analyze = Analyze.YES, store = Store.NO)
    private String name1;

    @Column(name = "NAME2", nullable = false)
    @NotEmpty
    @Field(index = Index.YES, analyze = Analyze.YES, store = Store.NO)
    private String name2;

    @Column(name = "NAME3", nullable = false)
    @NotEmpty
    @Field(index = Index.YES, analyze = Analyze.YES, store = Store.NO)
    private String name3;

    // ...
}

然后我从 SQL 脚本数据库表手动加载 - CUSTOM_ENTITY:

ID |NAME1 |NAME2 |NAME3 |
-------------------------
1  |Test1 |Test1 |Test1 |
2  |Test2 |Test2 |Test2 |
3  |Test3 |Test2 |Test2 |

并在我的存储库中运行代码:

FullTextEntityManager fullTextEntityManager = Search.getFullTextEntityManager(em);

QueryBuilder qBuilder = fullTextEntityManager.getSearchFactory().buildQueryBuilder().forEntity(CustomEntity.class).get();

Query luceneQuery = qBuilder.keyword().wildcard().onFields("name1", "name2", "name3").matching("Test").createQuery();
// Query luceneQuery = qBuilder.keyword().wildcard().onFields("name1", "name2", "name3").matching("Test*").createQuery();
// Query luceneQuery = qBuilder.keyword().wildcard().onFields("name1", "name2", "name3").matching("Test%").createQuery();

List test = fullTextEntityManager.createFullTextQuery(luceneQuery, CustomEntity.class).getResultList();

但是每次结果集合都是空的。你知道我是否错过了任何步骤吗？我应该使用 Hibernate API 而不是 SQL 脚本加载数据吗？

<小时/>

编辑

在运行查询之前，我手动索引数据:

FullTextEntityManager fullTextEntityManager = Search.getFullTextEntityManager(em);
try {
    fullTextEntityManager.createIndexer().startAndWait();
} catch (InterruptedException e) {
    e.printStackTrace();
}
QueryBuilder qBuilder = fullTextEntityManager.getSearchFactory().buildQueryBuilder().forEntity(CustomEntity.class).get();

Query luceneQuery = qBuilder.keyword().wildcard().onFields("name1", "name2", "name3").matching("Test").createQuery();
// Query luceneQuery = qBuilder.keyword().wildcard().onFields("name1", "name2", "name3").matching("Test*").createQuery();
// Query luceneQuery = qBuilder.keyword().wildcard().onFields("name1", "name2", "name3").matching("Test%").createQuery();

List test = fullTextEntityManager.createFullTextQuery(luceneQuery, CustomEntity.class).getResultList();

结果还是一样。

感谢您的帮助。

Answer 1

如果使用 SQL 加载数据，则需要使用 Mass 索引器手动索引数据。请参阅https://docs.jboss.org/hibernate/stable/search/reference/en-US/html_single/#search-batchindex-massindexer .

如果您使用 Hibernate API，它们将自动编入索引。