一、概述

　　官網：https://projects.spring.io/spring-data-jpa/

　　1.什麽是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，可以輕松實現基於JPA的存儲庫。該模塊處理對基於JPA的數據訪問層的增強支持。這使得構建使用數據訪問技術的Sprin應用程序變得更加容易。

　　2.spring-data-jpa有什麽

　　繼承關系圖：

spring-data-jpa快速入門（一）——