原生JAVA操作 Elasticsearch索引

package com.yqq.app13;


import org.apache.http.HttpHost;
import org.elasticsearch.action.admin.indices.delete.DeleteIndexRequest;
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 org.elasticsearch.client.indices.PutMappingRequest;
import org.elasticsearch.common.settings.Settings;
import org.elasticsearch.common.xcontent.XContentType;
import org.junit.After;
import org.junit.Before;
import org.junit.Test;

import java.io.IOException;

/**
 * @Author yqq
 * @Date 2021/11/30 15:30
 * @Version 1.0
 */
public class IndexTest {
    RestHighLevelClient client;
    @Before
    public void init(){
        // 创建客户端对象，链接ES
        client = new RestHighLevelClient(
                RestClient.builder(new HttpHost("node0",9200,"http")));
    }
    @Test
    public void createIndex() throws IOException {
        // 创建请求对象
        CreateIndexRequest request = new CreateIndexRequest("student");
        request.settings(Settings.builder()
                .put("index.number_of_shards",1)
                .put("index.number_of_replicas",1)
        );
        // 发送请求
        CreateIndexResponse response = client.indices().create(request, RequestOptions.DEFAULT);
    }
    @Test
    public void mappingIndex(){
        // 创建请求对象
        PutMappingRequest request = new PutMappingRequest("student");
        request.source("{\"properties\": {" +
                "      \"id\": {" +
                "        \"type\": \"integer\"," +
                "        \"store\": true," +
                "        \"index\": true" +
                "      }," +
                "      \"name\": {" +
                "        \"type\": \"text\"," +
                "        \"store\": true," +
                "        \"index\": true" +
                "      }," +
                "      \"info\": {" +
                "        \"type\": \"text\"," +
                "        \"store\": true," +
                "        \"index\": true" +
                "      }" +
                "    }}", XContentType.JSON);
        //发送请求
        try {
            client.indices().putMapping(request,RequestOptions.DEFAULT);
        } catch (IOException e) {
            e.printStackTrace();
        }
    }
    @Test
    public void deleteIndex(){
        // 创建请求对象
        DeleteIndexRequest request = new DeleteIndexRequest("student");
        try {
            //发送请求
            client.indices().delete(request,RequestOptions.DEFAULT);
        } catch (IOException e) {
            e.printStackTrace();
        }
    }
    @After
    public void close(){
        try {
            client.close();
        } catch (IOException e) {
            e.printStackTrace();
        }
    }
}