ElasticSearch 响应数据解析

 @PostMapping("/list")
    public Result getList(@RequestBody RqParams params) throws IOException {
        SearchRequest request = new SearchRequest("hotel");
        request.source().query(QueryBuilders.matchQuery("all", params.getKey()));
        SearchResponse response = client.search(request, RequestOptions.DEFAULT);
        //解析响应的数据

        //命中的数据(外层hits)
        SearchHits searchHits = response.getHits();

        //查询的文档数据数组对象（内层hits）
        SearchHit[] hits = searchHits.getHits();
        List<HotelDoc> list = new ArrayList<>();

        for (SearchHit hit : hits) {
            //hit是数组里的每一个对象
            String sourceStr = hit.getSourceAsString();
            HotelDoc hotelDoc = JSON.parseObject(sourceStr, HotelDoc.class);

            list.add(hotelDoc);
        }
        return new Result(201L, list);
    }