Elasticsearch从入门到专家

Java程序员Elasticsearch从入门到专家有下面这两本网页书，加上动手实践就够了（没太大必要百度看乱七八糟的什么博文了）：
权威指南：https://www.elastic.co/guide/cn/elasticsearch/guide/current/index.html
API使用：https://www.elastic.co/guide/en/elasticsearch/client/java-rest/7.16/java-rest-high.html