TestIndex_07_exists.java

package es_02_index;

import org.elasticsearch.client.RequestOptions;
import org.elasticsearch.client.RestHighLevelClient;
import org.elasticsearch.client.indices.GetIndexRequest;
import org.junit.Test;
import org.junit.runner.RunWith;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.boot.test.context.SpringBootTest;
import org.springframework.test.context.junit4.SpringRunner;

import java.io.IOException;

/**
 * 索引是否存在
 *
 * @author : qinyingjie
 * @version : 2.2.0
 * @date : 2023/5/13 11:14
 */
@SpringBootTest
@RunWith(SpringRunner.class)
public class TestIndex_07_exists {

    @Autowired
    private RestHighLevelClient client;

    @Test
    public void testExistIndex() throws IOException {
        GetIndexRequest request = new GetIndexRequest("itheima_book");
        //参数
        request.local(false);//从主节点返回本地索引信息状态
        request.humanReadable(true);//以适合人类的格式返回
        request.includeDefaults(false);//是否返回每个索引的所有默认配置
        boolean exists = client.indices().exists(request, RequestOptions.DEFAULT);
        System.out.println("exists:" + exists);
    }
}