pom

<dependency><groupId>org.springframework.boot</groupId><artifactId>spring-boot-starter-data-elasticsearch</artifactId></dependency><dependency><groupId>org.springframework.data</groupId><artifactId>spring-data-elasticsearch</artifactId></dependency>

客户端配置

import lombok.Data;import org.apache.http.HttpHost;import org.elasticsearch.client.RestClient;import org.elasticsearch.client.RestClientBuilder;import org.elasticsearch.client.RestHighLevelClient;import org.springframework.context.annotation.Configuration;import org.springframework.data.elasticsearch.config.AbstractElasticsearchConfiguration;@Configuration@Datapublic class ElasticsearchConfig extends AbstractElasticsearchConfiguration {private String host="localhost";private Integer port=9200;@Overridepublic RestHighLevelClient elasticsearchClient() {RestClientBuilder builder = RestClient.builder(new HttpHost(host,port));RestHighLevelClient restHighLevelClient = new RestHighLevelClient(builder);return restHighLevelClient;}}

dsl查询

import com.alibaba.fastjson.JSONObject;import org.elasticsearch.action.search.SearchRequest;import org.elasticsearch.action.search.SearchResponse;import org.elasticsearch.client.RequestOptions;import org.elasticsearch.client.RestHighLevelClient;import org.elasticsearch.index.query.WrapperQueryBuilder;import org.elasticsearch.search.builder.SearchSourceBuilder;import org.springframework.beans.factory.annotation.Autowired;import org.springframework.web.bind.annotation.PostMapping;import org.springframework.web.bind.annotation.RequestBody;import org.springframework.web.bind.annotation.RequestMapping;import org.springframework.web.bind.annotation.RestController;import java.io.IOException;@RestController@RequestMapping("/es-client2")public class EsClientController2 {@Autowiredprivate RestHighLevelClient rstHighLevelClient;@PostMapping("/query2")public SearchResponse userEsClient(@RequestBody JSONObject body) throws IOException {String index_name = body.getOrDefault("index_name", "").toString();System.out.println("body:" + body);String json = "{\"query\": {\"match\": {\"title\": \"hello world\"}}}";//language=JSON5String dsl = "{\n" +"\"match_all\": {}\n" +"}";WrapperQueryBuilder queryBuilder = new WrapperQueryBuilder(dsl);SearchRequest searchRequest = new SearchRequest();SearchSourceBuilder searchSourceBuilder = new SearchSourceBuilder();// 设置分页searchSourceBuilder.query(queryBuilder).from((int) 1).size((int) 10);searchRequest.source(searchSourceBuilder).indices(index_name);SearchResponse searchResp = rstHighLevelClient.search(searchRequest, RequestOptions.DEFAULT);// 计算返回的条数return searchResp;}}

结果