ES使用的问题

es低版本，链接阿里云上的es需要使用账户密码，

使用  x-pack-transport的5.6.1的版本时

<!-- elasticsearch -->
<dependency>
   <groupId>org.springframework.boot</groupId>
   <artifactId>spring-boot-starter-data-elasticsearch</artifactId>
</dependency>
<dependency>
   <groupId>org.elasticsearch.client</groupId>
   <artifactId>x-pack-transport</artifactId>
   <version>5.6.1</version>
</dependency>

报如下错误

Invocation of init method failed; nested exception is java.lang.NoClassDefFoundError: org/elasticsearch/xpack/XPackPlugin

在pom文件中添加一下配置

<repository>
   <id>elasticsearch-releases</id>
   <url>https://artifacts.elastic.co/maven</url>
   <releases>
      <enabled>true</enabled>
   </releases>
   <snapshots>
      <enabled>false</enabled>
   </snapshots>
</repository>