使用多个关键字进行Hibernate Search的索引搜索

Ric*_*iti 1 java lucene hibernate-search

当我尝试仅使用一个关键字进行搜索时,使用Hibernate Search 4.5.0.Final的应用程序运行正常。但是,如果我尝试使用两个关键字,那么Hibernate Search不会使用第二个关键字,HS只会考虑第一个。

例如,如果我尝试搜索“ James”,则搜索工作正常,并且应用程序返回索引中包含的所有“ James”。但是,如果我尝试搜索“ James Hetfield”,结果还是所有“ James”,而不是名称为“ James Hetfield”的唯一结果。我需要将“ James Hetfield”视为“ James AND Hetfield”

编辑:我犯了一个错误。搜索使用两个关键字,但是使用“ OR”而不是“ AND”

我的代码:

public List<Person> search(String keywords) throws DAOException {
    try {
        FullTextEntityManager fullTextEm = Search.getFullTextEntityManager(this.entityManager);
        QueryBuilder qb = fullTextEm.getSearchFactory().buildQueryBuilder().forEntity(Person.class).get();
        Query query = qb.keyword().onFields("name", "email", "username", "phone").matching(keywords).createQuery();
        FullTextQuery fullTextQuery = fullTextEm.createFullTextQuery(query);
        fullTextQuery.setProjection("name", "email", "username", "phone");
        Sort sortField = new Sort(new SortField("name_order", SortField.STRING));
        fullTextQuery.setSort(sortField);
        return fullTextQuery.getResultList();
    }
    catch (Exception e) {
        logger.error("Error searching index: " + keywords, e);
        throw new DAOException(e);
    }
}
Run Code Online (Sandbox Code Playgroud)

Ric*_*iti 5

找到了解决方案。我已经拆分了String并使用了BooleanQuery。感谢@thomas。这是我的代码:

分裂:

String[] arrKeywords = keywords.split(" ");
this.search(Arrays.asList(arrKeywords));
Run Code Online (Sandbox Code Playgroud)

然后,搜索:

public List<Person> search(String keywordsList) throws DAOException {
    try {
        FullTextEntityManager fullTextEm = Search.getFullTextEntityManager(this.entityManager);
        QueryBuilder qb = fullTextEm.getSearchFactory().buildQueryBuilder().forEntity(Person.class).get();

        List<Query> queryList = new LinkedList<Query>();
        Query query = null;

        for (String keyword : keywordsList) {
            query = qb.keyword().onFields("name", "email", "username", "phone").matching(keyword).createQuery();
            queryList.add(query);
        }

        BooleanQuery finalQuery = new BooleanQuery();
        for (Query q : queryList) {
            finalQuery.add(q, Occur.MUST);
        }

        FullTextQuery fullTextQuery = fullTextEm.createFullTextQuery(query);
        fullTextQuery.setProjection("name", "email", "username", "phone");
        Sort sortField = new Sort(new SortField("name_order", SortField.STRING));
        fullTextQuery.setSort(sortField);
        return fullTextQuery.getResultList();
    }
    catch (Exception e) {
        logger.error("Error searching index: " + keywords, e);
        throw new DAOException(e);
    }
}
Run Code Online (Sandbox Code Playgroud)