Mysql 对于jpa，如何强制它按特定变量排序？

我有一个项目，我使用SpringBootJPA中的Pageable类进行查询和排序。 想象一下，我有一个与ForumPost相关的项目对象，它基本上是一个论坛。 在我的DAO定义中，我有一个抽象类，它为所有ID定义一个uuid，一个createdDate、一个lasModified、一个createdBy和一个lastModifiedBy。当我试图从按createdDate排序的项目中获取一页帖子时，它是按项目createdDate而不是帖子排序的。 我有

其中order=“createdDate”和orderDir=“ASC”

如何强制它使用post createdDate进行排序

编辑：如评论中所述

这是hibernate打印出来的查询

select posts1_.id as id1_7_, posts1_.created_by as created_2_7_, posts1_.created_date as created_3_7_, posts1_.message as message4_7_, posts1_.project_id as project_5_7_ from projects projectdao0_ inner join forumposts posts1_ on projectdao0_.id=posts1_.project_id where projectdao0_.name=? order by projectdao0_.created_date desc limit ?

这是POJO

public class ForumPostDAO implements DAO {

    private static final long serialVersionUID = -7552574683834215423L;
    
    @Id
    @GeneratedValue(generator = "uuid2")
    @Column(columnDefinition = "BINARY(16)", unique = true)
    @GenericGenerator(name = "uuid2", strategy = "org.hibernate.id.UUIDGenerator")
    private UUID id;
    
    @NotBlank
    @Size(min = 25)
    @Column(length = 2048)
    private String message;
    
    @CreatedDate
    private long createdDate;
    
    @CreatedBy
    private String createdBy;
    
    @ToString.Exclude
    @EqualsAndHashCode.Exclude
    @JoinColumn(name = "project_id")
    @ManyToOne(cascade = { CascadeType.PERSIST , CascadeType.MERGE, CascadeType.REFRESH }, fetch = FetchType.LAZY)
    private ProjectDAO project;

    public ForumPostDAO(ForumPostDTO post) {
        this.message = post.getMessage();
        this.createdBy = post.getCreatedBy();
        this.createdDate = post.getCreatedDate();
    }
}

---

你能告诉我们你试过什么吗？除了创建一个基本上不包含关系的投影或重命名变量，没有任何效果。您想看什么？至少查询和部分POJO，@Aman我已经用您请求的内容编辑了帖子。从查询中，似乎您正在使用错误的存储库传递

PageRequest

。

public class ForumPostDAO implements DAO {

    private static final long serialVersionUID = -7552574683834215423L;
    
    @Id
    @GeneratedValue(generator = "uuid2")
    @Column(columnDefinition = "BINARY(16)", unique = true)
    @GenericGenerator(name = "uuid2", strategy = "org.hibernate.id.UUIDGenerator")
    private UUID id;
    
    @NotBlank
    @Size(min = 25)
    @Column(length = 2048)
    private String message;
    
    @CreatedDate
    private long createdDate;
    
    @CreatedBy
    private String createdBy;
    
    @ToString.Exclude
    @EqualsAndHashCode.Exclude
    @JoinColumn(name = "project_id")
    @ManyToOne(cascade = { CascadeType.PERSIST , CascadeType.MERGE, CascadeType.REFRESH }, fetch = FetchType.LAZY)
    private ProjectDAO project;

    public ForumPostDAO(ForumPostDTO post) {
        this.message = post.getMessage();
        this.createdBy = post.getCreatedBy();
        this.createdDate = post.getCreatedDate();
    }
}