SpringBoot Hibernate。 无法在 Postman、Swager、api 链接中获取用于 OneToMany、ManyToOne 关系的 findAll 和 findById

Question

I'm unable to get response in Postman. It becomes an infinite loop I think. The models are: dish, category. One category had multiple dishes.

Before add Dish (id, category), it behave normal like this Here is the Dish and Category model Here is one of the Controller The post dish working great, but the search is not. Anyone know how to solve it? (The db I use is Postgres)

Edit: I solved it. Using @JsonBackReference and @JsonManageReference

Answer 1

Your Dish & Category are related entities.

Try having @JsonIgnore annotation in your Dish class for Category field or the other way around.

Also, always use a DTO instead of returning the actual DB object in the Rest-call.