Java 如何配置一对一/@OneToOne关联以在两个表中自动插入外键

我有两个实体，分别由一对一关联SalesEntry（父项）和Receipt（子项）映射。保存SalesEntry对象时，在SalesEntry中插入外键，但在收据中未插入外键

SalesEntry.java

@Entity
@Table(name = "SALES_ENTRY")
public class SalesEntry {

    public SalesEntry() {       
    }
    @Id
    @GeneratedValue(strategy = GenerationType.AUTO)
    @Column(name = "SALES_ENTRY_ID")
    private long salesEntryId;
    @Column(name = "TOTAL_AMOUNT")
    private double totalAmount;


@ManyToOne(cascade = CascadeType.ALL)
    @JoinColumn(name = "RECEIPT_ID", unique = true, nullable = true)
    private Receipt receipt;

...
}

@Entity
@Table(name = "RECEIPT")
public class Receipt {

    public Receipt() {
        // empty constructor
    }
    @Id
    @GeneratedValue(strategy = GenerationType.AUTO)
    @Column(name = "RECEIPT_ID")
    private long receiptId;
    @Column(name = "RECEIPT_NO", unique = true)
    private String receiptNo;

    @OneToOne
    @JoinColumn(name = "SALES_ENTRY_ID")
    private SalesEntry salesEntry;

    ...
}

Receipt.java

@Entity
@Table(name = "SALES_ENTRY")
public class SalesEntry {

    public SalesEntry() {       
    }
    @Id
    @GeneratedValue(strategy = GenerationType.AUTO)
    @Column(name = "SALES_ENTRY_ID")
    private long salesEntryId;
    @Column(name = "TOTAL_AMOUNT")
    private double totalAmount;


@ManyToOne(cascade = CascadeType.ALL)
    @JoinColumn(name = "RECEIPT_ID", unique = true, nullable = true)
    private Receipt receipt;

...
}

@Entity
@Table(name = "RECEIPT")
public class Receipt {

    public Receipt() {
        // empty constructor
    }
    @Id
    @GeneratedValue(strategy = GenerationType.AUTO)
    @Column(name = "RECEIPT_ID")
    private long receiptId;
    @Column(name = "RECEIPT_NO", unique = true)
    private String receiptNo;

    @OneToOne
    @JoinColumn(name = "SALES_ENTRY_ID")
    private SalesEntry salesEntry;

    ...
}

使用收据保存SalesEntry对象时，保存收据对象，但不会插入（SALES\u ENTRY\u ID）收据表中的外键

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我的配置有错误吗？我想做什么？如我所料工作。

我认为你应该只使用一个按钮。从SalesEntry.java中删除多个OneOne，并在Receive属性上方的SalesEntry.java中使用OneOne。如果你需要清楚的例子，去你可以找到所有的例子一个快速的谷歌搜索给了我这个：现在不能测试出来，但它似乎涵盖了，你想要实现什么。