java - Lucene 8 评分

Question

我对 Lucene 8 比较陌生，想了解如何将旧版 Solr 4 评分迁移到 Lucene。这就是 Solr 4 目前的做法。

  /*
         * From the SolrRelevancyFAQ:
         * How can I see the 0?
         * 
         * Request that the pseudo-field named "score" be returned by adding it
         * to the fl (field list) parameter. The "score" will then appear along
         * with the stored fields in returned documents. q=Justice League&fl=*,score
         */

query.setFields( "*", "score");

如何使用 Lucene 8 执行此操作？我宁愿保持简单。有没有办法像上面那样请求返回伪字段？谢谢0

Answer 1

我最终实现了以下解决方案:

searcher.search(query, request.getMaxResults(), new Sort(new SortField(request.getSortOrder().getFieldName(),

)

SortField.Type.STRING，request.getSortOrder().isAscending() ？假:真))，真)；

注意:最后一个参数“doDocScores”默认为 false。完成此操作后，ScoreDoc 将包含该文档的分数。