Question

我遇到过这个例外

Caused by:
org.hibernate.MappingException: Unable to find column with logical name: picture_id in org.hibernate.mapping.Table(TXN_INVENTORY_PICTURE) and its related supertables and secondary tables
        at org.hibernate.cfg.Ejb3JoinColumn.checkReferencedColumnsType(Ejb3JoinColumn.java:564)
        at org.hibernate.cfg.BinderHelper.createSyntheticPropertyReference(BinderHelper.java:258)
        at org.hibernate.cfg.ToOneFkSecondPass.doSecondPass(ToOneFkSecondPass.java:116)
        at org.hibernate.cfg.Configuration.processEndOfQueue(Configuration.java:1596)
        at org.hibernate.cfg.Configuration.processFkSecondPassInOrder(Configuration.java:1519)
        at org.hibernate.cfg.Configuration.secondPassCompile(Configuration.java:1420)
        at org.hibernate.cfg.Configuration.buildSessionFactory(Configuration.java:1844)
        at org.hibernate.jpa.boot.internal.EntityManagerFactoryBuilderImpl$4.perform(EntityManagerFactoryBuilderImpl.java:850)

以下是涉及的课程的要点

@Entity
@Table(name = "REF_PRODUCT")
public class Product extends JpaModel{

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

    @Column(name = "MANUFACTURER")
    private String manufacturer;

    /**
     * Work around for missing
     */
    @OneToOne(optional = true)
    @JoinColumn(name="picture",referencedColumnName = "picture_id")
    private InventoryItemPicture picture;
}

这里是inventoryItemPicutre

@Entity
@Table(name = "TXN_INVENTORY_PICTURE")
public class InventoryItemPicture extends JpaModel{

    @Column
    private byte[] image;

    @Column
    private String fileName;

    public InventoryItemPicture(){

    }
....
}

这里是JPAModel

@MappedSuperclass
public abstract class JpaModel {

    @Id
    @Column(name ="ID", columnDefinition = "serial")
    @GeneratedValue(strategy = GenerationType.SEQUENCE)
    private Long id;

    @Type(type="org.jadira.usertype.dateandtime.joda.PersistentLocalDateTime")
    @Column(name = "created_date")
    private DateTime createdDate;

    public Long getId() {
        return id;
    }

    public void setId(Long id) {
        this.id = id;
    }

    public DateTime getCreatedDate() {
        return createdDate;
    }

    public void setCreatedDate(DateTime createdDate) {
        this.createdDate = createdDate;
    }
}

注意：省略了setter和getters，我想在这里实现的是在Product类中图片可以为null

Answer 1

您的地图中存在错误，referencedColumnName定位picture_id表中的TXN_INVENTORY_PICTURE列，该列不存在。

如果picture_id是REF_PRODUCT表中作为TXN_INVENTORY_PICTURE表的外键的列的名称，则将映射更改为

@OneToOne(optional = true)
@JoinColumn(name="picture_id")
private InventoryItemPicture picture;

Hibernate无法找到逻辑名称

1 个答案: