1 复制数据

POST http://elastic:123456@127.0.0.1:9200/_reindex

{"source": {"index": "老索引名称"},"dest": {"index": "备份索引名称"}
}

2 删除老索引

DELETE http://elastic:123456@127.0.0.1:9200//aicc_spp_audio_800808618

3 重建索引

package org.jeecg.modules.mark.common.es.setting;import lombok.Data;/*** ElasticSearch 索引设置** @date 2023年12月21日09点47分* @since V1.0.0.0*/
@Data
public class ElasticSearchSetting {/*** 是指索引要做多少个分片，只能在创建索引时指定，后期无法修改。*/private int number_of_shards = 3;/*** 每个分片有多少个副本，后期可以动态修改。*/private int number_of_replicas = 1;/*** max_result_window 是分页返回的最大数值，默认值为10000。*/private int max_result_window = 20000000;}

@Test
void createIndex() {String indexName = "索引名称";IndexCoordinates index = IndexCoordinates.of(indexName);if (!restTemplate.indexOps(index).exists()) {final Document mapping = restTemplate.indexOps(index).createMapping(AudioMarkInfo.class);mapping.put("date_detection", false);mapping.put("numeric_detection", false);final Document parse = Document.parse(JSONUtil.toJsonStr(new ElasticSearchSetting()));restTemplate.indexOps(index).create(parse);restTemplate.indexOps(index).putMapping(mapping);log.info("ES索引{}不存在，创建ES索引完成!", index.getIndexName());}
}

4 复制回数据

POST http://elastic:123456@127.0.0.1:9200/_reindex

{"source": {"index": "备份索引名称"},"dest": {"index": "新索引名称"}
}