springboot集成ElasticSearch(支持集群)

<dependency>
 <groupId>org.springframework.boot</groupId>
  <artifactId>spring-boot-starter-data-elasticsearch</artifactId>
</dependency>

spring:
  elasticsearch:
    rest:
#      uris、username和password项需要填写协调节点服务地址（IP地址+端口号）、用户名和密码。当有多个协调节点时，可以设置uris的值为多个协调节点的服务地址，中间用逗号分隔
      uris: http://localhost:9200
      username: elastic
      password: elastic

 @Autowired
 private ElasticsearchRestTemplate elasticsearchRestTemplate;
#判断索引是否存在
restTemplate.indexExists(indexName)
#创建索引
restTemplate.createIndex(indexName); 
#创建表结构
restTemplate.putMapping(xxxx.class);
#写入数据到制定索引
restTemplate.save(item, IndexCoordinates.of(indexName));

https://blog.csdn.net/feiying0canglang/article/details/120706299