ElasticsearchOperations始终以面向对象的方式进行操作
RestHighLevelClient和我们学习kibana语法时差不多

es依赖

    org.springframework.boot
    spring-boot-starter-data-elasticsearch

配置文件

package com.study.config;

import org.elasticsearch.client.RestHighLevelClient;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.data.elasticsearch.client.ClientConfiguration;
import org.springframework.data.elasticsearch.client.RestClients;
import org.springframework.data.elasticsearch.config.AbstractElasticsearchConfiguration;


@Configuration
public class RestClientConfig extends AbstractElasticsearchConfiguration {

    @Override
    @Bean
    public RestHighLevelClient elasticsearchClient() {
        final ClientConfiguration clientConfiguration = ClientConfiguration.builder()
                                                        .connectedTo("192.168.196.155:9100")
                                                        .build();
        return RestClients.create(clientConfiguration).rest();
    }
}

可以把连接路径写道application配置文件中去，然后注入进来