SpringBoot2.0 集成 jpa

（1）添加Spring Data JPA的起步依赖

（2）添加数据库驱动依赖

pom.xml

 <dependencies>
        <dependency>
            <groupId>org.projectlombok</groupId>
            <artifactId>lombok</artifactId>
        </dependency>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-data-jpa</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>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-test</artifactId>
            <scope>test</scope>
        </dependency>
    </dependencies>

（3） 在application.yml中配置数据库和jpa的相关属性

spring:
  datasource: # hikari
    driver-class-name: com.mysql.cj.jdbc.Driver # mysql 8
    username: root
    password: rain
    url: jdbc:mysql://localhost:3306/tsethikari?useUnicode=true&characterEncoding=utf8&serverTimezone=GMT%2B8
 配置jpa  PhysicalNamingStrategyStandardImpl小驼峰  xx_yy_xx
  jpa:
    show-sql: true
    hibernate:
      ddl-auto: update
      naming:
        physical-strategy: org.springframework.boot.orm.jpa.hibernate.SpringPhysicalNamingStrategy
    database: mysql

(4) 测试代码

@SpringBootTest
class Demo05jpa2ApplicationTests {

    @Autowired
    UserDao userDao;

    @Test
    void test01() {
        User user = new User();
        user.setGirlFriend("rose");
        user.setUsername("jack@xx.com");
        user.setName("jack");
        userDao.save(user);//--->orm -- >将对象值取出-->sql-->数据库
    }


}

@Entity //表示当前类，在数据库有表与它对应
@Table(name = "tb_user2")
public class User {
    @Id //表示id
    @GeneratedValue(strategy = GenerationType.IDENTITY) //主键自增长
    private int id;
    private String username;
    private String password;
    private String girlFriend;
    private String name;

//继承通用的接口，即可完成增删改查
public interface UserDao extends JpaRepository<User,Integer> {
}

标签：集成,SpringBoot2.0,jpa,boot,private,user,mysql,org
来源： https://blog.csdn.net/qq_42150520/article/details/111173500