EntityNotfoundException-Hibernate和Springboot

我正在使用Springboot和hibernate以及MS SQL中的数据库。我有以下两个实体类别PS和CFO。CFO有两个主键—CFO_ID和LAST_UPDATE_DTS，它们在CFO表中都作为外键引用。当我尝试使用getter方法获取PS并访问cfo时，即使数据库中存在数据，我也会得到EntityNotFound异常

@Entity
@Table(name = "PS")
@Data
@IdClass(PlanSponsorId.class)
public class PS implements Serializable {

    private static final long serialVersionUID = -1685251075449473233L;

    @Id
    @Column(name = "PS_ID", columnDefinition = "INTEGER")
    private Integer ps_id;

    @Id
    @Column(name = "LAST_UPDATE_DTS", columnDefinition = "DATETIME")
    private Date lastUpateTimestamp;

    @ManyToOne(fetch = FetchType.LAZY)
    @JoinColumns({ @JoinColumn(name = "CFO_ID",referencedColumnName="CFO_ID"),
            @JoinColumn(name = "CFO_LAST_UPDATE_DTS",referencedColumnName="LAST_UPDATE_DTS") })
    private CFO cfo;

//other fields
}

@Data
@NoArgsConstructor
public class PlanSponsorId implements Serializable {

    private static final long serialVersionUID = 2224235254147911360L;
    private Date lastUpateTimestamp;
    private Integer ps_id;

}

@Entity
@Table(name = "CFO")
@Data
@IdClass(value = CFOModelId.class)
public class CFO implements Serializable {
    private static final long serialVersionUID = -1082267441376710907L;

    @Id
    @Column(name = "CFO_ID", columnDefinition = "CHAR(3)")
    private String cfoIdentifier;
    @Id
    @Column(name = "LAST_UPDATE_DTS", columnDefinition = "DATETIME")
    private Date lastUpateTimestamp;
    @OneToMany(mappedBy="cfo")
    private List<PS> ps;

//other fields
}

@Data
@NoArgsConstructor
public class CFOModelId implements Serializable {
    private static final long serialVersionUID = -325079478600059751L;
    private String cfoIdentifier;
    private Date lastUpateTimestamp;
}

javax.persistence.EntityNotFoundException: Unable to find com.abc.CFO with id CFOModelId(cfoIdentifier=1  , lastUpateTimestamp=2019-12-30 01:36:08.773)
    at org.hibernate.jpa.boot.internal.EntityManagerFactoryBuilderImpl$JpaEntityNotFoundDelegate.handleEntityNotFound(EntityManagerFactoryBuilderImpl.java:162)
    at org.hibernate.proxy.AbstractLazyInitializer.checkTargetState(AbstractLazyInitializer.java:285)
    at org.hibernate.proxy.AbstractLazyInitializer.initialize(AbstractLazyInitializer.java:180)
    at org.hibernate.proxy.AbstractLazyInitializer.getImplementation(AbstractLazyInitializer.java:309)
    at org.hibernate.proxy.pojo.bytebuddy.ByteBuddyInterceptor.intercept(ByteBuddyInterceptor.java:45)

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当我只保留一个作为主键——CFO_ID或LAST_UPDATE_DTS，并将Idclass全部删除时，它工作得非常好。这让我觉得idclass有问题，但我找不到任何问题。有人能帮忙吗？

根据Hibernate文档，Hibernate似乎允许这样做，但它并不符合JPA

5.1.2.1.2. Multiple id properties without identifier type

Another, arguably more natural, approach is to place @Id on multiple properties of your entity. This approach is only supported by Hibernate (not JPA compliant) but does not require an extra embeddable component.

对于符合JPA的解决方案，您必须为此设置指定额外的@IDClass或使用EmbeddedId：

参考：

例如：

@Entity 
@IdClass(ProjectId.class)
public class Project {
@Id int departmentId;
@Id long projectId;
} 

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谢谢你的回答。我也尝试过embeddedid，但没有成功。现在，我从上次更新dts上的列注释中删除了列定义，这样做没有问题。但我不确定这是否是正确的解决方案。