SpringBoot整合JPA

1、新建项目

导入启动器jdbc，jpa，mysql，web

<dependency>
    <groupId>org.springframework.boot</groupId>
    <artifactId>spring-boot-starter-data-jpa</artifactId>
</dependency>
<dependency>
    <groupId>org.springframework.boot</groupId>
    <artifactId>spring-boot-starter-jdbc</artifactId>
</dependency>
<dependency>
    <groupId>org.springframework.boot</groupId>
    <artifactId>spring-boot-starter-web</artifactId>
</dependency>
<dependency>
    <groupId>mysql</groupId>
    <artifactId>mysql-connector-java</artifactId>
    <scope>runtime</scope>
</dependency>

2、在全局配置文件中配置jpa的相关属性

spring.datasource.username=root
spring.datasource.password=root
spring.datasource.url=jdbc:mysql://localhost:3306/springbootdemo
spring.datasource.driver-class-name=com.mysql.jdbc.Driver
#sprigboot内部是使用springdata，springdata里的jpa是使用hibernate实现的
spring.jpa.hibernate.ddl-auto=update
spring.jpa.show-sql=true

3、创建实体类

4、创建jpa的接口UserDao