SpringBoot实现一对多

2018-10-24  本文已影响0人  一粒有梦想的痞老板

两个实体类,Album类(一)对PictureList类(多)

@Entity
@Data
public class Album {
    @GeneratedValue
    @Id
    private Integer id;
    private String albumCover;
    private String albumTitle;
    private String albumDescription;
    private Integer likes;


    @OneToMany(fetch = FetchType.EAGER, cascade = CascadeType.REMOVE)
    @JoinColumn(name = "picture_id")

    private List<PictureList> pictureList = new ArrayList<>();


    public Album() {
    }
@Entity
@Data
public class PictureList {
    @GeneratedValue
    @Id
    private Integer id;
    private String pictureTitle;
    private String pictureRoad;

    public PictureList(String pictureTitle, String pictureRoad) {
        this.pictureTitle = pictureTitle;
        this.pictureRoad = pictureRoad;
    }

    public PictureList() {
    }
}
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