使用组合键进行一对一的Hibernate映射并不起作用

Question

我在类Report和Flyleaf类之间有一对一的hibernate映射。 列出的代码已成功执行，映射效果很好。

在我的真实模型中，报告的主键由＆＃34; id＆＃34;和＆＃34;索引＆＃34; flyleaf也是如此（因为它的主键是报告的主键）。

如何更改我的代码以使主键复合（我尝试过，但是当我想要获取报告列表并且我还尝试将密钥定义为PKClass时抛出异常）。 （我使用Hibernate和Spring，如果这可以帮助的话）

@Entity
@Table(name="report_t")
public class Report {

    private int id, nbPage;
    private Flyleaf flyleaf;

    public Report() {}

    public Report(int id) {
        this.id = id;
    }

    @Id
    public int getId() {
        return id;
    }

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

    @Column(name="nb_page")
    public int getNbPage() {
        return nbPage;
    }

    public void setNbPage(int nbPage) {
        this.nbPage = nbPage;
    }

    @OneToOne (fetch = FetchType.LAZY, mappedBy = "report", cascade = CascadeType.ALL)
    public Flyleaf getFlyleaf() {
        return flyleaf;
    }

    public void setFlyleaf(Flyleaf flyleaf) {
        this.flyleaf = flyleaf;
    }

    @Override
    public String toString() {
        return "ID : "+id+"\t nb page : "+nbPage+"\n\t"+flyleaf;
    }   
}

    @Entity
@Table(name="flyleaf_t")
public class Flyleaf {

    private int id;
    private String title, author, checker;
    private Report report;

    public Flyleaf() {}

    public Flyleaf(int id) {
        this.id = id;
    }

    @GenericGenerator(name = "generator", strategy = "foreign",
            parameters = @Parameter(name = "property", value = "report_t"))
    @Id
    @GeneratedValue(generator = "generator")
    public int getId() {
        return id;
    }

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

    @Column (name="title")
    public String getTitle() {
        return title;
    }

    public void setTitle(String title) {
        this.title = title;
    }

    @Column (name="author")
    public String getAuthor() {
        return author;
    }

    public void setAuthor(String author) {
        this.author = author;
    }

    @Column (name="checker")
    public String getChecker() {
        return checker;
    }

    public void setChecker(String checker) {
        this.checker = checker;
    }

    @OneToOne(fetch = FetchType.LAZY)
    @PrimaryKeyJoinColumn
    public Report getReport() {
        return report;
    }

    public void setReport(Report report) {
        this.report = report;
    }

    @Override
    public String toString() {
        return "Flyleaf [id=" + id + ", title=" + title + ", author="
                + author + ", checker=" + checker + "]";
    }

}