用java代码查询ES索引

public class ElasticsearchSearchTest {public static void main(String[] args) throws IOException {RestHighLevelClient restHighLevelClient = new RestHighLevelClient(RestClient.builder(new HttpHost("localhost", 9200, "http")));try {GetIndexRequest getIndexRequest = new GetIndexRequest("hello1");GetIndexResponse getIndexResponse = restHighLevelClient.indices().get(getIndexRequest, RequestOptions.DEFAULT);System.out.println(getIndexResponse.getAliases());System.out.println(getIndexResponse.getMappings());System.out.println(getIndexResponse.getSettings());} catch (Exception e) {e.printStackTrace();} finally {restHighLevelClient.close();}}
}

用postman请求查询