springboot2.2.5 整合 es

你好！对于Spring Boot 2.2.5与Elasticsearch的整合，你可以按照以下步骤进行操作：

1. 在pom.xml文件中添加Elasticsearch的依赖：

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

2. 创建一个Elasticsearch的配置类，比如ElasticsearchConfig.java：

import org.elasticsearch.client.RestHighLevelClient;
import org.springframework.beans.factory.annotation.Value;
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 ElasticsearchConfig extends AbstractElasticsearchConfiguration {

    @Value("${elasticsearch.host}")
    private String host;

    @Value("${elasticsearch.port}")
    private int port;

    @Override
    @Bean
    public RestHighLevelClient elasticsearchClient() {
        final ClientConfiguration clientConfiguration = ClientConfiguration.builder()
                .connectedTo(host + ":" + port)
                .build();

        return RestClients.create(clientConfiguration).rest();
    }
}

3. 在应用的配置文件（如application.properties或a