match_all 查询所有【ElasticSearch】

    /**
     * match_all 查询所有
     */
    @Test
    public void test02() throws IOException {
        SearchRequest searchRequest = new SearchRequest("hotel");

        SearchSourceBuilder searchSourceBuilder = new SearchSourceBuilder();
        searchSourceBuilder.query(QueryBuilders.matchAllQuery());
        searchRequest.source(searchSourceBuilder);
        SearchResponse searchResponse = client.search(searchRequest, RequestOptions.DEFAULT);

        SearchHits searchHits = searchResponse.getHits();
        System.out.println("查询总条数:" + searchHits.getTotalHits().value);

        SearchHit[] hits = searchHits.getHits();
        for (SearchHit hit : hits) {
            HotelDoc hotelDoc = JSON.parseObject(hit.getSourceAsString(), HotelDoc.class);
            System.out.println("数据:" + hotelDoc);
        }
    }