Question

我正在开发一个spring mvc，我有一个旅行停止模型和一个物品交易模型。以下是我的旅程停止模式：

import javax.persistence.CascadeType;
import javax.persistence.Column;
import javax.persistence.Entity;
import javax.persistence.GeneratedValue;
import javax.persistence.Id;
import javax.persistence.JoinColumn;
import javax.persistence.ManyToOne;
import javax.persistence.OneToMany;
import javax.persistence.Table;
import javax.persistence.Transient;

@Entity
@Table(name="TripStop")
public class TripStopModel {
    @Id
    @Column(name="tripstopid")
    @GeneratedValue 
    private Integer tripStopId;

    @OneToMany(mappedBy = "tripStopModel", cascade = CascadeType.REMOVE)
    private List<ItemTransactionModel> itemTransactionModelList;
}

以下是我的商品交易模型：

import javax.persistence.Column;
import javax.persistence.Entity;
import javax.persistence.GeneratedValue;
import javax.persistence.Id;
import javax.persistence.JoinColumn;
import javax.persistence.ManyToOne;
import javax.persistence.Table;

@Entity
@Table(name="itemTx")
public class ItemTransactionModel {

    @Id
    @Column(name="itemTxid")
    @GeneratedValue 
    private Integer itemTxId;

    @Column(name="itemcode")
    private String itemCode;

    @Column(name="weight")
    private String weight;

    @Column(name="bagcount")
    private Integer bagCount;   

    @ManyToOne(optional=true)
    @JoinColumn(name="tripstopid")
    private TripStopModel tripStopModel;
}

itemtx表是tripstop的子表。我希望无论何时从tripstop表中删除记录，其itemtx表中的子记录都应自动删除。这就是我使用级联类型删除的原因。但它没有用。以下是删除行程停止模型代码：

Session session = sessionFactory.getCurrentSession();
        session.delete(tripStopModel);

级联类型删除不从子表中删除记录

0 个答案: