如何将ElasticSearch多层搜索查询从cURL转换为JAVA？

Question

因此，在ES中编写(右)查询并使用sense插件对本地ES安装进行测试之后，我现在面临的问题是:如何使用ES JAVA API从我的代码中执行相同的操作。下面是我要翻译的查询：

{
"size": 5,
"query": {
  "multi_match": {
     "query": "physics",
     "type": "most_fields",
     "fields": [
         "document.title^10",
         "document.title.shingles^2",
         "document.title.ngrams",
         "person.name^10",
         "person.name.shingles^2",
         "person.name.ngrams",
         "document.topics.name^10",
         "document.topics.name.shingles^2",
         "document.topics.name.ngrams"
      ],
      "operator": "and"
    }
  }
}'

我知道应该是这样的，但我不太确定：

 Node node = nodeBuilder().client(true).node();
    Client client = node.client();

    SearchResponse response = client.prepareSearch("dlsnew")
            .setTypes("person", "document")
            .setSearchType(SearchType.DFS_QUERY_THEN_FETCH)
            .setQuery(QueryBuilders.multiMatchQuery("physics",
                    "document.title^10",
                    "document.title.shingles^2",
                    "document.title.ngrams",
                    "person.name^10",
                    "person.name.shingles^2",
                    "person.name.ngrams",
                    "document.topics.name^10",
                    "document.topics.name.shingles^2",
                    "document.topics.name.ngrams"))
            .setFrom(0).setSize(5).setExplain(true)
            .execute()
            .actionGet();

    SearchHit[] results = response.getHits().getHits();

另外，如何处理查询中的“操作符”和“类型”：“most_fields”部件？

Answer 1

你差点就做到了

QueryBuilders.multiMatchQuery("physics",
                "document.title^10",
                "document.title.shingles^2",
                "document.title.ngrams",
                "person.name^10",
                "person.name.shingles^2",
                "person.name.ngrams",
                "document.topics.name^10",
                "document.topics.name.shingles^2",
                "document.topics.name.ngrams")
                .operator(MatchQueryBuilder.Operator.AND)
                .type(MultiMatchQueryBuilder.Type.MOST_FIELDS);