參考:https://www.elastic.co/guide/en/elasticsearch/client/java-rest/current/index.html
1. pom.xml中加入maven依賴
<dependency>
<groupId>org.elasticsearch.client</groupId>
<artifactId>elasticsearch-rest-high-level-client</artifactId>
<version>7.7.0</version>
</dependency>
2. 初始化
RestHighLevelClient client = new RestHighLevelClient(
RestClient.builder(
new HttpHost("localhost", 9200, "http"),
new HttpHost("localhost", 9201, "http")));
3. 參照es的API 文檔,操作即可
@Autiwired
private RestHighLevelClient restHighLevelClient;