What technologies are better to learn in java ee?

Question

Java

Hi, what technologies are better to study in java ee, because there are a lot of technologies, but I want to learn something necessary. Now I own servlets, web.xml, jsp, a little CDI. It is necessary so that it is quite enough for a june.

Answer 1

here I found somehow such an article
https://dou.ua/lenta/articles/java-enterprise-guide/
or
https://foxminded.com.ua/news/6-java-enterprise-ch...
criticize, plz.

Answer 2

At least in general terms, you need to know all the standards included in Java EE.

Answer 3

Spring