java - jpa映射两个属性

Question

我需要具有 OneToMany 关系的 CompanyUser.companyRolCompanyUsers 属性，并在每个查询中完成。

JPA company_usr 实体:

@Entity
@Table(name = "company_usr")
public class CompanyUser extends BaseModel implements Serializable {

    @Id
    @ManyToOne(fetch = FetchType.EAGER)
    @JoinColumn(nullable = false)
    private Company company;
    @Id
    @ManyToOne(fetch = FetchType.EAGER)
    @JoinColumn(name = "usr_id", nullable = false)
    private User user;

    @Column(nullable = false)
    private Boolean external;

    @OneToMany(fetch = FetchType.EAGER)
    private List<CompanyRolCompanyUser> companyRolCompanyUsers;

....

JPA companyRol_companyUsr 实体:

@Entity
@Table(name = "companyRol_companyUsr")
public class CompanyRolCompanyUser extends BaseModel implements Serializable {

    @Id
    @ManyToOne(fetch = FetchType.EAGER)
    @JoinColumns({
        @JoinColumn(name="companyuser_company_id",    referencedColumnName="company_id"),
        @JoinColumn(name="companyuser_usr_id", referencedColumnName="usr_id")
        })
    private CompanyUser companyUser;

    @Id
    @ManyToOne(fetch = FetchType.EAGER)
    private CompanyRol companyRol;

....

如何正确设置companyRolCompanyUsers属性中的mappedBy？

Answer 1

如果我得到你想要实现的目标，我认为你需要类似的东西:

@OneToMany(fetch = FetchType.EAGER, mappedBy="companyUser")
private List<CompanyRolCompanyUser> companyRolCompanyUsers;