存储常用（不可更改）列表，地图的最佳方法是什么？

Question

What is the best way to store often used (not changeable) List, Map?
Is it better to use @Cacheable over creating list in the service layer on @PostConstruct ?

Answer 1

I would say @Cacheable is better because you're not tied to a specific caching implementation. Also it's less intrusive on the code. As specified on Spring Reference Manual Section 29.3.1 , caching a method that finds a book by ISBN just looks like this:

@Cacheable("books")
public Book findBook(ISBN isbn) {...}