Spring Data JPA中的CrudRepository和JpaRepository接口有什么区别？ [英] What is difference between CrudRepository and JpaRepository interfaces in Spring Data JPA?

问题描述

Spring Data JPA中的 CrudRepository 和 JpaRepository 接口有什么区别？

What is the difference between CrudRepository and JpaRepository interfaces in Spring Data JPA?

当我在网上看到这些例子时，我看到它们在那里可以互换使用。它们之间有什么区别？你为什么要用另一个？

When I see the examples on the web, I see them there used kind of interchangeably. What is the difference between them? Why would you want to use one over the other?

推荐答案

JpaRepository 扩展 PagingAndSortingRepository 反过来扩展 CrudRepository 。

他们的主要功能是：

• CrudRepository 主要提供CRUD功能。


• PagingAndSortingRepository 提供了分页和排序记录的方法。


• JpaRepository 提供了一些与JPA相关的方法，例如刷新持久化上下文和删除批量记录。

• CrudRepository mainly provides CRUD functions.
• PagingAndSortingRepository provides methods to do pagination and sorting records.
• JpaRepository provides some JPA-related methods such as flushing the persistence context and deleting records in a batch.

由于上面提到的继承， JpaRepository 将具有 CrudRepository 和 PagingAndSortingRepository 。因此，如果您不需要存储库具有 JpaRepository 和 PagingAndSortingRepository 提供的功能，请使用 CrudRepository 。

Because of the inheritance mentioned above, JpaRepository will have all the functions of CrudRepository and PagingAndSortingRepository. So if you don't need the repository to have the functions provided by JpaRepository and PagingAndSortingRepository , use CrudRepository.

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