@Entity
public class User {
@Id
private Long id;
private String username;
private String password;
}
properties
spring.datasource.url=jdbc:mysql://localhost:3306/mydatabase
spring.datasource.username=root
spring.datasource.password=123456
@Repository
public class UserRepository {
@PersistenceContext
private EntityManager entityManager;
public void saveUser(User user) {
entityManager.persist(user);
}
public User getUserById(Long id) {
return entityManager.find(User.class, id);
}
}
