CreateIndexRequest

ES 服务器正常启动后，可以通过 Java API 客户端对象对 ES 索引进行操作

编写Test02_createIndex进行测试

package com.stt.demo;

import org.apache.http.HttpHost;
import org.elasticsearch.client.RequestOptions;
import org.elasticsearch.client.RestClient;
import org.elasticsearch.client.RestHighLevelClient;
import org.elasticsearch.client.indices.CreateIndexRequest;
import org.elasticsearch.client.indices.CreateIndexResponse;

import java.io.IOException;

public class Test02_createIndex {
    public static void main(String[] args) throws IOException {
        // 创建客户端
        RestHighLevelClient client = new RestHighLevelClient(
                RestClient.builder(new HttpHost("localhost", 9200, "http"))
        );

        // 【创建索引】请求 ，索引名称 -- user
        CreateIndexRequest request = new CreateIndexRequest("user");

        // 发送请求，获取响应
        CreateIndexResponse response = client.indices().create(request, RequestOptions.DEFAULT);
        boolean acknowledged = response.isAcknowledged();

        System.out.println("操作状态 ：" + acknowledged);
        // 关闭客户端
        client.close();
    }
}

返回

操作状态 ：true