MappingException:Repeated column in mapping for entity

解决Hibernate重复列映射异常

最新推荐文章于 2021-06-14 12:21:10 发布

原创最新推荐文章于 2021-06-14 12:21:10 发布 · 552 阅读

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#Hibernate #Java #ORM

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本文介绍了一个关于使用Hibernate进行数据库映射时遇到的问题，即出现MappingException异常的情况，原因是实体类中存在重复的列映射。文章详细展示了如何通过调整实体类中的属性和注解来解决该问题。

使用Hibernate做DB映射，出现MappingException，
Caused by: org.hibernate.MappingException: Repeated column in mapping for entity: com.fangjia.dc.model.db.Template column: RELATE_ID (should be mapped with insert="false" update="false")
at org.hibernate.mapping.PersistentClass.checkColumnDuplication(PersistentClass.java:675)
at org.hibernate.mapping.PersistentClass.checkPropertyColumnDuplication(PersistentClass.java:697)
at org.hibernate.mapping.PersistentClass.checkColumnDuplication(PersistentClass.java:719)
at org.hibernate.mapping.PersistentClass.validate(PersistentClass.java:473)
at org.hibernate.mapping.RootClass.validate(RootClass.java:235)
at org.hibernate.cfg.Configuration.validate(Configuration.java:1332)
at org.hibernate.cfg.Configuration.buildSessionFactory(Configuration.java:1835)
at org.springframework.orm.hibernate3.LocalSessionFactoryBean.newSessionFactory(LocalSessionFactoryBean.java:860)
at org.springframework.orm.hibernate3.LocalSessionFactoryBean.buildSessionFactory(LocalSessionFactoryBean.java:779)
at org.springframework.orm.hibernate3.AbstractSessionFactoryBean.afterPropertiesSet(AbstractSessionFactoryBean.java:211)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.invokeInitMethods(AbstractAutowireCapableBeanFactory.java:1477)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1417)
... 61 more

检查代码：


@Id
	@Column(name = "ID")
	@GeneratedValue(strategy = GenerationType.AUTO)
	private int id;

	@ManyToOne
	@JoinColumn(name = "RELATE_ID", nullable = false)
	private WebSite webSite;

	@Column(name = "RELATE_ID")
	private int relateId;

	public WebSite getWebSite() {
		return webSite;
	}

发现杯具的多写了个relateId属性部分，删除以后分即可正常通过


@Id
	@Column(name = "ID")
	@GeneratedValue(strategy = GenerationType.AUTO)
	private int id;

	@ManyToOne
	@JoinColumn(name = "RELATE_ID", nullable = false)
	private WebSite webSite;

	public WebSite getWebSite() {
		return webSite;
	}

囧啊，教训，让你乱写，让你乱写！