java - 我无法使用 hibernate 本地 session 工厂对象更新特定行的 'shop_table' 表值？

Question

如果我正在打印 session 对象，所需的输出不正确，即 -

SessionImpl(PersistenceContext[entityKeys=[],collectionKeys=[]];ActionQueue[insertions=org.hibernate.engine.spi.ExecutableList@7164ee40 updates=org.hibernate.engine.spi.ExecutableList@2d80b7f deletions=org.hibernate.engine.spi.ExecutableList@560d3d76 orphanRemovals=org.hibernate.engine.spi.ExecutableList@10fbc8b2 collectionCreations=org.hibernate.engine.spi.ExecutableList@463b2203 collectionRemovals=org.hibernate.engine.spi.ExecutableList@47a5a48 collectionUpdates=org.hibernate.engine.spi.ExecutableList@3b23213c collectionQueuedOps=org.hibernate.engine.spi.ExecutableList@75d3c0b2 unresolvedInsertDependencies=UnresolvedEntityInsertActions[]])

我认为如果像这样打印很有值(value)-

SessionImpl(PersistenceContext[entityKeys=[EntityKey[com.mode
l.Entity#1]],collectionKeys=[]];ActionQueue[insertions=[] updates=[] deletions=[
] collectionCreations=[] collectionRemovals=[] collectionUpdates=[]])

我的商店类(class)是-

@Entity
@Table(name = "shops")
public class Shop {
    @Id
    @GeneratedValue(strategy = GenerationType.IDENTITY)
    private int id;
    @Column(name = "shop_domain")
    private String shopDomain;
    @JsonFormat(pattern="dd-MM-yyyy")
    private Timestamp orderSyncDate;
    @OneToOne(mappedBy = "shop", fetch = FetchType.LAZY, cascade = CascadeType.ALL)
    @JsonManagedReference
    private NetsuiteConfig netsuiteConfig;

我只是将一些数据设置为商店类对象，试图保存在数据库中，对象持有 ID 即已经存在于数据库中，查询为 -session factory.getCurrentSession().update(shop);这实际上并没有更新数据库中的值，我不知道原因，为什么？

Answer 1

您必须提交更新才能将更改传播到数据库中:

...
sessionFactory.getCurrentSession().update(shop);
sessionFactory.getCurrentSession().commit();
...

引用资料:

• Hibernate Session merge, update, save, saveOrUpdate, persist example
• Hibernate Lifecycle (for Baeldung)