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我有以下错误的问题:休眠双向多对一
Error creating bean with name 'sessionFactory' defined in ServletContext resource [/WEB-INF/library.xml]: Invocation of init method failed; nested exception is org.hibernate.AnnotationException: A Foreign key refering tv.mirada.connect.cashless.parking.model.PaymentInterface from tv.mirada.connect.cashless.parking.model.Merchant has the wrong number of column. should be 0
我花了大约一天寻找答案,并试图东西,没有运气。我实际上并不需要双向访问,我只需要能够从payment_interface获得商家表格行,但是包含双向表单比试图从单向到单向更简单。
我使用的表格是商家表和付款接口表。我意识到我可以让商户表直接引用节点表,但商家表在支付界面中具有信息的扩展,因此以这种方式映射它是更有意义的。
@Entity
@Cache(usage = CacheConcurrencyStrategy.READ_ONLY)
@Table(name = "park_merchant")
public class Merchant implements java.io.Serializable {
@Id
@GeneratedValue
@Column(name="id", unique=true, nullable=false)
private Integer id;
@ManyToOne(fetch = FetchType.LAZY)
@JoinColumn(name="payment_interface_node_id", nullable = false)
private PaymentInterface paymentInterface;
@Entity
@Table(name = "park_payment_interface", uniqueConstraints = @UniqueConstraint(columnNames = "name"))
public class PaymentInterface implements java.io.Serializable {
@Id
@OneToOne(fetch=FetchType.LAZY, cascade=CascadeType.ALL)
@JoinColumn(name = "node_id", unique = true, nullable = false)
private Node node;
@OneToMany(cascade = CascadeType.ALL, fetch = FetchType.LAZY, mappedBy = "paymentInterface")
private Set<Merchant> merchants = new HashSet<Merchant>(0);
希望我只是想念一些简单的东西。