java Api 实现创建elasticsearch 索引

创建一个索引名为：user 的ES索引：

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;

public class ESTest_Index_Create {
    public static void main(String[] args) throws Exception {
        //创建ES客户端
        RestHighLevelClient esClient = new RestHighLevelClient(
                RestClient.builder(new HttpHost("localhost",9200,"http"))
        );

        //创建索引
        CreateIndexRequest request = new CreateIndexRequest("user");
        CreateIndexResponse createIndexResponse = esClient.indices().create(request, RequestOptions.DEFAULT);
        //响应状态
        boolean acknowledged = createIndexResponse.isAcknowledged();
        System.out.println("索引操作 ： "+acknowledged);


        //关闭ES客户端
        esClient.close();
    }
}

检查实现效果：

http://localhost:9200/_cat/indices?v

如图所示，创建成功