Question

我搜索过，但没有发现任何问题，我有。它是另一个hibernate MappingException：实体映射中的重复列

我想要映射一些实体。 AbstractReaction有一个受保护的String：text。每个子实体都必须为此制作自定义getter和setter方法。相关代码：

AbstractReaction：

@Entity
@Inheritance(strategy = InheritanceType.SINGLE_TABLE)
public abstract class AbstractReaction extends LongId {
    protected String text;

    public abstract String getText();

    public abstract void setText(String text);
    ...
}

ImageReaction：

@Entity
@Table(name = "image_reaction")
public class ImageReaction extends AbstractReaction {
    ...
    @Override
    @NotNull
    @Size(max = 2000)
    @Column(nullable = false, name = "text", length = 2000)
    public String getText() {
        return text;
    }

    @Override
    public void setText(String text) {
        this.text = text;
    }
    ...
}

LinkReaction：

@Entity
@Table(name = "link_reaction")
public class LinkReaction extends AbstractReaction {
    ...
    @Override
    @NotNull
    @Size(max = 2048)
    @Column(nullable = false, name = "text", length = 2048)
    public String getText() {
        return text;
    }

    @Override
    public void setText(String text) {
        this.text = text;
    }
}

在spring entityFactory创建时，我得到以下异常：

Caused by: javax.persistence.PersistenceException: [PersistenceUnit: default] Unable to build Hibernate SessionFactory
    at org.hibernate.jpa.boot.internal.EntityManagerFactoryBuilderImpl.persistenceException(EntityManagerFactoryBuilderImpl.java:1225)
    at org.hibernate.jpa.boot.internal.EntityManagerFactoryBuilderImpl.access$600(EntityManagerFactoryBuilderImpl.java:119)
    at org.hibernate.jpa.boot.internal.EntityManagerFactoryBuilderImpl$4.perform(EntityManagerFactoryBuilderImpl.java:853)
    at org.hibernate.jpa.boot.internal.EntityManagerFactoryBuilderImpl$4.perform(EntityManagerFactoryBuilderImpl.java:843)
    at org.hibernate.boot.registry.classloading.internal.ClassLoaderServiceImpl.withTccl(ClassLoaderServiceImpl.java:398)
    at org.hibernate.jpa.boot.internal.EntityManagerFactoryBuilderImpl.build(EntityManagerFactoryBuilderImpl.java:842)
    at org.springframework.orm.jpa.vendor.SpringHibernateJpaPersistenceProvider.createContainerEntityManagerFactory(SpringHibernateJpaPersistenceProvider.java:60)
    at org.springframework.orm.jpa.LocalContainerEntityManagerFactoryBean.createNativeEntityManagerFactory(LocalContainerEntityManagerFactoryBean.java:353)
    at org.springframework.orm.jpa.AbstractEntityManagerFactoryBean.buildNativeEntityManagerFactory(AbstractEntityManagerFactoryBean.java:370)
    at org.springframework.orm.jpa.AbstractEntityManagerFactoryBean.afterPropertiesSet(AbstractEntityManagerFactoryBean.java:359)
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.invokeInitMethods(AbstractAutowireCapableBeanFactory.java:1687)
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1624)
    ... 40 more
Caused by: org.hibernate.MappingException: Repeated column in mapping for entity: com.projectaim.model.entity.reaction.ImageReaction column: text (should be mapped with insert="false" update="false")
    at org.hibernate.mapping.PersistentClass.checkColumnDuplication(PersistentClass.java:709)
    at org.hibernate.mapping.PersistentClass.checkPropertyColumnDuplication(PersistentClass.java:731)
    at org.hibernate.mapping.PersistentClass.checkColumnDuplication(PersistentClass.java:753)
    at org.hibernate.mapping.PersistentClass.validate(PersistentClass.java:506)
    at org.hibernate.mapping.SingleTableSubclass.validate(SingleTableSubclass.java:64)
    at org.hibernate.cfg.Configuration.validate(Configuration.java:1358)
    at org.hibernate.cfg.Configuration.buildSessionFactory(Configuration.java:1849)
    at org.hibernate.jpa.boot.internal.EntityManagerFactoryBuilderImpl$4.perform(EntityManagerFactoryBuilderImpl.java:850)
    ... 49 more

我应该如何以面向对象的方式管理'text'，以避免这种异常？

另一个Hibernate MappingException实体

0 个答案: