ManyToMany：采用JPA的正确或最佳方法是什么？

Question

I'm new to JPA and studying. When I have Many-to-Many relationship b/w tables in SQL for example Author and Book: I used a join table AuthorBook with composite primary key.

How should do it in JPA: Should I make only two entities Author and Book and create relationship ManyToMany with mappingBy one of them (in Author for example) and make another own owner of relationship: in Books (with using joinColumns).

Or should I also make a "join" 3rd entity AuthorsBooks with JPA? What way is correct? Are there actually different ways or an only way a preferable way?

Besides my specific question, I wonder if somebody know a good example/tutorial on this question? (I couldn't find a good one) Thanks!

Answer 1

I found different sources with solution. the best in my opinion is like here: think is here https://en.wikibooks.org/wiki/Java_Persistence/ManyToMany They say it's a standard way to make two entities with manyToMany association, however if the join table supposed to have additional columns is a best way to make three entities including an entity for join table (examples are given in the link for both situations)