1)elasticsearch-sql是基于Java Rest High Level Client构建elasticsearch查询的,支持elasticsearch原生rest client调用以及第三方http请求 2)基于alibaba的Druid数据连接池的SqlParser组件,解析sql速度快,自定义解析规则更方便 3)方便鉴权 抛弃elasticsearch传统的transport连接方式改用rest high level连接方式不仅仅是因为官方建...
1、初始化RestHighLevelClient(连接到ES和释放掉ES) @SpringBootTestclassHotelDocumentTest {privateRestHighLevelClient client; @BeforeEachvoidsetUp() { client=newRestHighLevelClient(RestClient.builder( HttpHost.create("http://192.168.223.129:9200") )); } @AfterEachvoidtearDown()throwsIOException { clie...
一、准备 1. 导入依赖 <!--springboot <=2.2.5 需要指定es版本默认引入es版本6.x--> <dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-data-elasticsearch</artifactId> </dependency> 1. 2. 3. 4. 5. 2. 测试数据 PUT /yuangong { "settings": {}, "...
searchRequest.source(searchSourceBuilder);// 执行查询,然后处理响应结果SearchResponsesearchResponse=restHighLevelClient.search(searchRequest, RequestOptions.DEFAULT);// 根据状态和数据条数验证是否返回了数据if(RestStatus.OK.equals(searchResponse.status()) && searchResponse.getHits().getTotalHits().value >0...
// 从spring 拿到 ES 的 高可用客户端RestHighLevelClientclient=forSpring();//获取es操作器BaseESOperatores=Elasticsearchs.apply(client);Stringsql="select * FROM idx_group_send_message where merchantId = '12361' and createTime >=1993-01-01 12:12:12 and createTime<=2022-01-01 12:12:12 ord...
Elasticsearch的痛点 首先，咱们得承认，ES的RestHighLevelClient确实强大，但同时也复杂得让人想哭。每次...
client.close(); } catch (IOException e) { System.out.println("Failed to close Elasticsearch client: " + e.getMessage()); } } private static RestHighLevelClient createClient() { RestClientBuilder builder = RestClient.builder(new HttpHost("localhost", 9200, "http")); ...
elastic.co/guide/en/elasticsearch/client/java-rest/6.6/java-rest-high.html 搭建项目 创建一个springboot的maven的项目 导入依赖 代码语言:javascript 复制 <dependency> <groupId>org.elasticsearch.client</groupId> <artifactId>elasticsearch-rest-high-level-client</artifactId> <version>6.6.2</version> <...
class) @Slf4j public class TestAggs { @Autowired private RestHighLevelClient client; //按颜色分组,计算每个颜色的销售数量 @Test public void testAggs() throws IOException { //1、构建请求 SearchRequest searchRequest = new SearchRequest("tvs"); //请求体 SearchSourceBuilder searchSourceBuilder = ...
Elasticsearch提供了多种数据导入和导出的方法,包括使用Bulk API、Logstash、Java High-Level REST Client、Snapshot and Restore API、SQL、Scroll API以及第三方工具如elasticdump。你可以根据你的具体需求选择合适的方法来进行数据的导入和导出。对于大量数据的导入和导出,建议使用更高效的方法,如使用Scroll API进行滚动...