Associations marked as mappedBy must not define database mappings like @JoinTable or @JoinColumn

异常：Associations marked as mappedBy must not define database mappings like @JoinTable or @JoinColumn

错误发生在下面这些代码中

@OneToMany(mappedBy="parent",fetch=FetchType.EAGER,cascade=CascadeType.ALL)

@JoinColumn(name="parent_id")

private List<Category> child = new ArrayList<Category>();

后来发现在3.5.3版本中@JoinColumn与mappingBy是互斥的，之前在hibernate.3.3.2中都是正确无误的,也就是hibernate.3.3.2允许这两个互相存在。

所以，如果升级到hibernate3.5.3想测试成功的话，mappBy="parent",就应该去掉，正确的配置应该是这样

@OneToMany(fetch=FetchType.EAGER,cascade=CascadeType.ALL)

@JoinColumn(name="user_id")

private List<user> child = new ArrayList<User>();