java - 如何在 QueryBuilders.matchQuery() 中添加过滤器以根据过滤器获取一些匹配的文档

Question

我能够ABC-123使用下面的 java 代码从 elasticsearch 中获取与我的输入代码匹配的文档。但是现在，我想在这里再添加一个条件/过滤器，我想获取我所有匹配ABC-123的Type代码Reg。

SearchRequest searchRequest = new SearchRequest(INDEX); 
searchRequest.types(TYPE);
SearchSourceBuilder searchSourceBuilder = new SearchSourceBuilder();
SearchSourceBuilder searchSourceBuilder2 = new SearchSourceBuilder();
QueryBuilder qb=QueryBuilders.matchQuery("code", code);
searchSourceBuilder.query(qb);
searchRequest.source(searchSourceBuilder);
SearchResponse searchResponse1 = null;
try {
     searchResponse1 = restHighLevelClient.search(searchRequest);
} catch (IOException e) {
    e.getLocalizedMessage();
}
SearchHit[] searchHits1 = searchResponse1.getHits().getHits();
Replacement linkId = null;
Replacement replacement = null;
List<Replacement> linkIDList=new ArrayList<Replacement>();
for (SearchHit hit1 : searchHits1) {
    linkId = new Replacement();
     Map<String, Object> sourceAsMap1 = hit1.getSourceAsMap();
     linkId.setLink_id(sourceAsMap1.get("code"));
     linkIDList.add(linkId);
}

请在下面找到我的数据。

id      link_id         code            Type
1001    2001            ABC-123         Reg
1002    2002            ABC-345         Reg
1003    2003            ABC-123         Act
1004    2004            ABC-123         Reg

如果我试图搜索ABC-123，我只期待

id      link_id         code            Type
1001    2001            ABC-123         Reg
1004    2004            ABC-123         Reg

它，不应该考虑下面的记录。因为它的类型是Act.

id      link_id         code            Type
1003    2003            ABC-123         Act

谁能有任何想法，我该如何添加filter我的java代码。?

标签： javaelasticsearchelastic-stack

Answer 1

您需要将约束包装在bool/must/filter查询中，如下所示：

QueryBuilder qb = QueryBuilders.boolQuery()
    .must(QueryBuilders.matchQuery("code", code))
    .filter(QueryBuilders.termQuery("Type", "Reg"));
searchSourceBuilder.query(qb);