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你好Stackoverflow，我很難與OneToMany映射我已經搜索了從早上找到解決方案沒有任何幫助。外鍵值在OneToMany映射中插入值爲空
我正在嘗試執行@OneToMany映射關係。 下面是類：
類：1
@Id
@GeneratedValue(strategy = GenerationType.AUTO)
@Column(name = "cbid")
private int cbid;
@ManyToOne(cascade = CascadeType.ALL)
@JoinColumn(name = "cid", referencedColumnName = "custid", insertable = false, updatable = false)
private CustomerDetails customerDetails;
@Column(name = "customerid")
private Integer customerid;
@Column(name = "subtotal")
private Double subtotal;
@Column(name = "tax_amount")
private Double tax_amount;
@Column(name = "total_amount")
private Double total_amount;
@Column(name = "paid_amount")
private Double paid_amount;
@Column(name = "amount_due")
private Double amount_due;
@Column(name = "invoiceNumber")
private int invoiceNumber;
@Column(name = "d")
private Date d;
@OneToMany(mappedBy="cbpd", cascade=CascadeType.ALL, fetch=FetchType.LAZY)
@OrderColumn(name="lindex")
private List<ProductNameBuyingDetails> pnbd = new ArrayList<ProductNameBuyingDetails>();
//setters and getters
類：2
@Id
@GeneratedValue(strategy = GenerationType.AUTO)
@Column(name = "byno")
private int buyingnumber;
@Column(name = "productnumber")
private Integer productNumber;
@Column(name = "productname")
private String productName;
@Column(name = "productprice")
private Double productPrice;
@Column(name = "productquantity")
private Double productQuantity;
@Column(name = "producttotal")
private Double productTotal;
@ManyToOne(cascade=CascadeType.ALL)
@JoinColumn(name="pbid", referencedColumnName="cbid", insertable=false, updatable=false)
private CustomerBuyingProductsDetails cbpd;
//setters and getters
我使用session.save（）方法以這種方式
CustomerBuyingProductsDetails customerBuyingProductsDetails = new CustomerBuyingProductsDetails();
customerBuyingProductsDetails.setCustomerid(customerBuyingProducts.getCustomerid());
customerBuyingProductsDetails.setInvoiceNumber(customerBuyingProducts.getInvoiceNumber());
customerBuyingProductsDetails.setAmount_due(customerBuyingProducts.getAmount_due());
customerBuyingProductsDetails.setD(customerBuyingProducts.getD());
customerBuyingProductsDetails.setPaid_amount(customerBuyingProducts.getPaid_amount());
customerBuyingProductsDetails.setSubtotal(customerBuyingProducts.getSubtotal());
customerBuyingProductsDetails.setTax_amount(customerBuyingProducts.getTax_amount());
customerBuyingProductsDetails.setTotal_amount(customerBuyingProducts.getTotal_amount());
sessionFactory.getCurrentSession().save(customerBuyingProductsDetails);
Iterator<Integer> itrNum = customerBuyingProducts.getProductNumber().iterator();
Iterator<String> itrName = customerBuyingProducts.getProductName().iterator();
Iterator<Double> itrPrice = customerBuyingProducts.getProductPrice().iterator();
Iterator<Double> itrQuan = customerBuyingProducts.getProductQuantity().iterator();
Iterator<Double> itrTotal = customerBuyingProducts.getProductTotal().iterator();
int i=0;
while (itrNum.hasNext()) {
ProductNameBuyingDetails pnbd = new ProductNameBuyingDetails();
pnbd.setProductNumber(itrNum.next());
pnbd.setProductName(itrName.next());
pnbd.setProductPrice(itrPrice.next());
pnbd.setProductQuantity(itrQuan.next());
pnbd.setProductTotal(itrTotal.next());
pnbd.setCbpd(customerBuyingProductsDetails);
sessionFactory.getCurrentSession().save(pnbd);
customerBuyingProductsDetails.getPnbd().add(pnbd);
}
sessionFactory.getCurrentSession().save(customerBuyingProductsDetails);
}
休眠正在以這種方式生成查詢
Hibernate: insert into cb (amount_due, customerid, d, invoiceNumber, paid_amount, subtotal, tax_amount, total_amount, cbid) values (?, ?, ?, ?, ?, ?, ?, ?, ?)
Hibernate: insert into prodnamebuy (productname, productnumber, productprice, productquantity, producttotal, byno) values (?, ?, ?, ?, ?, ?)
外鍵值沒有插入，在數據庫表中它顯示爲空（空） 我無法糾正我錯誤的地方。 在此先感謝.. 希望最好..
感謝您的幫助，問題已解決...謝謝:) –
如果由於其中一個問題解決了問題，您能接受嗎？ :) – IntelliData