多對一映射在Hibernate中

Question

以下映射給人

外鍵闖民宅db.KarateInvoice錯誤從db.KarateInvoiceDetail 有錯誤的數列。應爲1

發票實體：

@Id 
@Column(name = "id") 
private long      id; 
@OneToOne 
@JoinColumn(name = "companyid") 
@Id 
private Company     company; 
@Id 
private short      fiscalYear; 
@OneToMany(mappedBy = "karateInvoiceDetails") 
private List<KarateInvoiceDetail> karateInvoiceDetails; 

發票詳情：

@Id 
private short   seqNo; 
@ManyToOne 
@JoinColumns({ @JoinColumn(name = "karateInvoiceId"), 
     @JoinColumn(name = "karateInvoiceCompanyId"), 
     @JoinColumn(name = "karateInvoiceFiscalYear") }) 
private KarateInvoice invoice; 
@Id 
@OneToOne 
@JoinColumns({ @JoinColumn(name = "studentId"), 
     @JoinColumn(name = "studentCompanyId") }) 
private KarateStudent student; 

公司實體：

@Id 
private long  id; 

想法是有一個Invoice表的複合（id，fiscalyear和companyId）和具有（seqNo，InvoiceId，InvoiceFiscalYear和InvoiceCompanyId）組合鍵的。

Answer 1

我想你應該明確地引用在@JoinColumn註釋發票列：

@ManyToOne 
@JoinColumns({ @JoinColumn(name = "karateInvoiceId" 
        , referencedColumnName="id"), 
     @JoinColumn(name = "karateInvoiceCompanyId" 
       , referencedColumnName="companyId"), 
     @JoinColumn(name = "karateInvoiceFiscalYear" 
       , referencedColumnName="fiscalYear") }) 
private KarateInvoice invoice;