这里有4个表：register、user、user roles和user profile image
寄存器和用户被Map成一对一的关系，寄存器的引用在users表中生成。。。。。。这很好。。
现在讨论用户和角色表之间的一对多关系，它还可以通过在角色表中生成用户表引用来完美地工作。。
但问题是在用户和配置文件图像之间进行一对一操作时。配置文件映像未生成用户的引用….为什么在配置文件映像表中未生成用户引用
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@Entity
@Getter
@Setter
public class Register {

    @Id
    @GeneratedValue(strategy = GenerationType.IDENTITY)
    private int id;

    @OneToOne(cascade = CascadeType.ALL,orphanRemoval = true,mappedBy = "register")
    private User user;

}

用户

@Entity
@Getter
@Setter
public class User {

    @Id
    @Column(name = "User_Id")
    @GeneratedValue(strategy = GenerationType.IDENTITY)
    private int id;

    @OneToOne(cascade = CascadeType.ALL,fetch=FetchType.EAGER)
    @JoinColumn(name = "user_id")
    private UserProfileImage userProfileImage;

    @OneToMany(cascade = CascadeType.ALL,fetch = FetchType.EAGER)
    @JoinColumn(name = "user_id")
    private List<UserRoles> userRoles;

}

用户配置文件图像

@Entity
@Getter
@Setter
public class UserProfileImage {
    @Id
    @Column(name = "id")
    @GeneratedValue(strategy = GenerationType.IDENTITY)
    private int id;
    @Column(name = "name")
    private String name;
    @Column(name = "type")
    private String type;
    @Column(name = "picByte", length = 100000)
    private byte[] picByte;

    public UserProfileImage() {
        super();
    }

    public UserProfileImage(String name, String type, byte[] picByte) {
        this.name = name;
        this.type = type;
        this.picByte = picByte;
    }
}