Question

iam试图针对我的elasticSearch发送布尔查询，从而过滤掉文档。如何使用Java中的BooleanQueryBuilder Api过滤（A和B和C）和（D或E或F）和G等布尔表达式？我尝试使用filter方法，但没有得到任何结果。例如：

例如，假设A，B，C，D，E，F，G是事件，其中“名称”属性必须与“ Robin”匹配。

private QueryBuilder getQueryBuilder() {

        BoolQueryBuilder boolQueryBuilder1 = QueryBuilders
                .boolQuery()
                .filter(QueryBuilders.matchQuery(D).operator(Operator.OR))
                .filter(QueryBuilders.matchQuery(E).operator(Operator.OR))
                .filter(F);

        BoolQueryBuilder boolQueryBuilder2 = QueryBuilders
                .boolQuery()
                .filter(QueryBuilders.matchQuery(A).operator(Operator.AND))
                .filter(QueryBuilders.matchQuery(B).operator(Operator.AND))
                .filter(QueryBuilders.matchQuery(C));

        BoolQueryBuilder boolQueryBuilder3 = QueryBuilders
                .boolQuery()
                .filter(G);

        BoolQueryBuilder boolQueryBuilder = QueryBuilders
                .boolQuery()
                .filter(boolQueryBuilder1)
                .filter(boolQueryBuilder2)
                .filter(boolQueryBuilder3);

        return boolQueryBuilder;

}

我知道这个例子不是很好，但是我希望你能帮助我！谢谢！

Answer 1

是这个吗？

private static QueryBuilder getQueryBuilder() {
    //condition
    MatchQueryBuilder A = QueryBuilders.matchQuery("content", "A");
    MatchQueryBuilder B = QueryBuilders.matchQuery("content", "B");
    MatchQueryBuilder C = QueryBuilders.matchQuery("content", "C");
    MatchQueryBuilder D = QueryBuilders.matchQuery("content", "D");
    MatchQueryBuilder E = QueryBuilders.matchQuery("content", "E");
    MatchQueryBuilder F = QueryBuilders.matchQuery("content", "F");
    MatchQueryBuilder G = QueryBuilders.matchQuery("name", "Robin");
    //Maybe you should use TermQuery
    //TermQueryBuilder G = QueryBuilders.termQuery("name", "Robin");


    //1.(A AND B AND C)
    BoolQueryBuilder query1 = QueryBuilders.boolQuery();
    query1.must(A).must(B).must(C);

    //2.(D OR E ORF)
    BoolQueryBuilder query2 = QueryBuilders.boolQuery();
    query2.should(D).should(E).should(F);

    //3.Last
    BoolQueryBuilder lastQuery = QueryBuilders.boolQuery();
    lastQuery.must(query1).must(query2).must(G);

    //use filter
    BoolQueryBuilder filterBuiler = QueryBuilders.boolQuery().filter(lastQuery);
    return filterBuiler;
}

如何使用Java Api在ElasticSearch中进行布尔查询？

1 个答案: