1.用maven创建依赖,pom.xml:基于elasticsearch7.9.1
<dependencies>
<dependency>
<groupId>junit</groupId>
<artifactId>junit</artifactId>
<version>4.12</version>
<scope>test</scope>
</dependency>
<dependency>
<groupId>org.elasticsearch.client</groupId>
<artifactId>elasticsearch-rest-high-level-client</artifactId>
<version>7.9.1</version>
</dependency>
<dependency>
<groupId>org.apache.httpcomponents</groupId>
<artifactId>httpcore</artifactId>
<version>4.4.13</version>
</dependency>
<!-- https://mvnrepository.com/artifact/commons-logging/commons-logging -->
<dependency>
<groupId>commons-logging</groupId>
<artifactId>commons-logging</artifactId>
<version>1.2</version>
</dependency>
<!-- https://mvnrepository.com/artifact/com.fasterxml.jackson.core/jackson-core -->
<dependency>
<groupId>com.fasterxml.jackson.core</groupId>
<artifactId>jackson-core</artifactId>
<version>2.11.2</version>
</dependency>
<!-- https://mvnrepository.com/artifact/com.fasterxml.jackson.core/jackson-databind -->
<dependency>
<groupId>com.fasterxml.jackson.core</groupId>
<artifactId>jackson-databind</artifactId>
<version>2.11.2</version>
</dependency>
<!-- https://mvnrepository.com/artifact/com.fasterxml.jackson.core/jackson-annotations -->
<dependency>
<groupId>com.fasterxml.jackson.core</groupId>
<artifactId>jackson-annotations</artifactId>
<version>2.11.2</version>
</dependency>
<!-- https://mvnrepository.com/artifact/joda-time/joda-time -->
<dependency>
<groupId>joda-time</groupId>
<artifactId>joda-time</artifactId>
<version>2.10.6</version>
</dependency>
<!-- https://mvnrepository.com/artifact/com.carrotsearch/hppc -->
<dependency>
<groupId>com.carrotsearch</groupId>
<artifactId>hppc</artifactId>
<version>0.8.2</version>
</dependency>
</dependencies>
2.创建index,主要代码:
import java.util.*; import org.apache.http.HttpHost; import org.elasticsearch.client.RestHighLevelClient; import org.elasticsearch.client.RestClient; import org.elasticsearch.client.RestClientBuilder; import org.elasticsearch.client.RequestOptions; import org.elasticsearch.action.index.IndexResponse; import org.elasticsearch.action.index.IndexRequest; import org.elasticsearch.common.xcontent.XContentBuilder; public class test { public static void main(String[] args) { HttpHost h1 = new HttpHost("106.13.64.228", 9200, "http"); RestClientBuilder r2 = RestClient.builder(h1); //创建连接 RestHighLevelClient client = new RestHighLevelClient(r2); //创建数据 Map<String, Object> doc1 = new HashMap<String, Object>(); doc1.put("scree_name", "d_bharv1"); doc1.put("follower_count", 2000); doc1.put("create_at", "2015-09-20"); try { IndexRequest indexRequest = new IndexRequest("testindex").id("1").source(doc1); RequestOptions requestOptions = RequestOptions.DEFAULT; //创建index IndexResponse indexResponse = client.index(indexRequest, requestOptions); System.out.println(indexResponse); } catch (Exception ex) { ex.printStackTrace(); } } }