使用JPA查询OneToMany

Question

嗨，我是春季新手，正在学习教程。我下面有两个具有一对多关系的实体。我想获取建筑物的所有呼叫点。我应该在建筑物存储库还是在呼叫点存储库中执行此操作？我已经在使用buildid的呼叫点存储库中尝试过，但是看到以下错误。谢谢

@Entity
public class BuildingEntity {
@Id
@GeneratedValue(strategy = GenerationType.AUTO)
private int buildingid;

@Column(name="name", nullable=false)
private String name;

@Column(name="address")
private String address;

@Column(name="postcode")
private String postcode;

@Column(name="telephone")
private String telephone;

@OneToMany(mappedBy = "building", fetch = FetchType.LAZY)
private List<CallpointEntity> callpoints;

}

@Entity
public class CallpointEntity {

@Id
@GeneratedValue(strategy = GenerationType.AUTO)
private int id;

@Column(name="number")
private int number;

@Column(name="location")
private String location;

@Column(name="comment")
private String comment;

@ManyToOne
@JoinColumn(name="buildingid")
private BuildingEntity building;

}

使用呼叫点存储库时出错。

  

未找到CallpointEntity类型的属性buildingid！你是说“建筑”吗？