基于 JSON 的 DSL 查询 - 实现步骤【ElasticSearch】

        //todo 2.准备Request - 搜索哪个索引库
        SearchRequest searchRequest = new SearchRequest("hotel");

        //todo 4.所有的搜索条件封装对象 searchSourceBuilder
        SearchSourceBuilder searchSourceBuilder = new SearchSourceBuilder();

        //**************** 条件封装的位置 *******************

        //************************************************

        //todo 3.准备DSL - 添加搜索条件
        searchRequest.source(searchSourceBuilder);

        //todo 1.发送请求 - 搜索方法
        SearchResponse searchResponse = client.search(searchRequest, RequestOptions.DEFAULT);

        //todo 5.抽取返回值数据
        SearchHits searchHits = searchResponse.getHits();