Springboot中实现Hibernate的代码实例

1. 添加Hibernate的依赖

<dependency>
  <groupId>org.springframework.boot</groupId>
  <artifactId>spring-boot-starter-data-jpa</artifactId>
</dependency>

2. 配置数据源和Hibernate

# 数据源配置
spring.datasource.url=jdbc:mysql://localhost:3306/mydb
spring.datasource.username=root
spring.datasource.password=123456
spring.datasource.driver-class-name=com.mysql.jdbc.Driver

# Hibernate配置
spring.jpa.show-sql=true
spring.jpa.hibernate.ddl-auto=update
spring.jpa.properties.hibernate.dialect=org.hibernate.dialect.MySQL5Dialect

3. 定义实体类

@Entity
@Table(name = "user")
public class User {
    @Id
    @GeneratedValue(strategy = GenerationType.IDENTITY)
    private Long id;
    private String name;
    private Integer age;
    // getter and setter
}

4. 定义Repository

@Repository
public interface UserRepository extends JpaRepository<User, Long> {
}

5. 编写业务逻辑

@Service
public class UserService {
    @Autowired
    private UserRepository userRepository;
    
    public User save(User user) {
        return userRepository.save(user);
    }
    
    public List<User> findAll() {
        return userRepository.findAll();
    }
}

6. 编写测试类

@SpringBootTest
class UserServiceTest {
    @Autowired
    private UserService userService;
    
    @Test
    void testSave() {
        User user = new User();
        user.setName("张三");
        user.setAge(20);
        userService.save(user);
        
        List<User> users = userService.findAll();
        Assert.assertEquals(users.size(), 1);
        Assert.assertEquals(users.get(0).getName(), "张三");
        Assert.assertEquals(users.get(0).getAge(), Integer.valueOf(20));
    }
}