一、概述
官网：https://projects.spring.io/spring-data-jpa/
1.什么是spring-data-jpa
Spring Data JPA, part of the larger Spring Data family, makes it easy to easily implement JPA based repositories. This module deals with enhanced support for JPA based data access layers. It makes it easier to build Spring-powered applications that use data access technologies.
Spring Data JPA是Spring Data系列的一部分，可以轻松实现基于JPA的存储库。该模块处理对基于JPA的数据访问层的增强支持。这使得构建使用数据访问技术的Sprin应用程序变得更加容易。
2.spring-data-jpa有什么
继承关系图：
