Java JPA从具有多对多关联的集合中选择

我有两个具有多对多关联的实体类

ModPm：

@Entity
@Table(name = "MOD_PM")
public class ModPm extends WebPageObject implements Serializable, IDBNamedEntity {

    private static final long serialVersionUID = 1L;

    public final static String Q_GET_WITHOUT_STATUS_FOR_SCOPE = "ModPm.getWithoutStatusForScope";

    @Id
    private long id;
    ....
    @ManyToMany
    @JoinTable(name = "MOD_PM_SCOPE_TYPES",
            joinColumns = @JoinColumn(name = "PM_ID"),
            inverseJoinColumns = @JoinColumn(name = "SCOPE_TYPE_ID")
    )
    private List<ModScopeType> modScopeTypes;

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如何将此查询转换为JPQL？

当您在查询中引用SCOPE\u TYPE\u ID时，您指的是什么？可能是ScopeType的ID或其他我没有看到的字段。我假设范围类型id字段丢失

试试这个：

select p from ModPm p join p.modScopeTypes type where type.scopeTypeId = 1

---

ModScopeType类有一个名为MOD_SCOPES的表注释，你是说MOD_SCOPES表中的一条记录吗？Thx，对我来说很好。SCOPE_TYPE_ID是MOD_PM_SCOPE_TYPES表的字段，它有两列-PM_ID和SCOPE_TYPE_ID，每列引用表MOD_PM和MOD_SCOPE_TYPE的主键列

SELECT ID, NAME FROM MOD_PM WHERE ID IN (SELECT PM_ID FROM MOD_PM_SCOPE_TYPES WHERE SCOPE_TYPE_ID=1)

select p from ModPm p join p.modScopeTypes type where type.scopeTypeId = 1