Spring Data Elasticsearch(4.3.0) 单向https RestHighLevelClient

Elasticsearch server(v7.12.1) 9200 配置 ssl 后，java客户端 单向 https 配置

代码摘自SpringDataElasticsearch 官网
https://docs.spring.io/spring-data/elasticsearch/docs/current/reference/html/#elasticsearch.clients.rest

usingSsl(SSLContext sslContext, HostnameVerifier hostnameVerifier);

sslContex 配置信任所有的证书， hostnameVerifier 不验证 hostname（具体配置百度查一下）

重载方法

 ClientConfiguration.TerminalClientConfigurationBuilder usingSsl();
 ClientConfiguration.TerminalClientConfigurationBuilder usingSsl(SSLContext sslContext);
 ClientConfiguration.TerminalClientConfigurationBuilder usingSsl(SSLContext sslContext, HostnameVerifier hostnameVerifier);