Spring Data JPA: No property name found for type ×××

Spring Data JPA: No property name found for type ×××

转载于https://blog.csdn.net/m0_37893932/article/details/78325927
原因:没有按照JPA的规范去起方法名

实体类
@Entity
public class User{

@Id
@GeneratedValue
private Long id;

private String userName;

}

repository
public interface UserRepository extends JpaRepository<User, Long>{

User findByName(String userName);

}

可以看出实体类字段是userName,而repository却是findByName!改为findByUserName就好了