Java Hibernate映射异常-无法确定以下项的类型:
我正在尝试配置实体,但hibernate引发以下异常:Java Hibernate映射异常-无法确定以下项的类型:,java,hibernate,jpa,orm,hibernate-mapping,Java,Hibernate,Jpa,Orm,Hibernate Mapping,我正在尝试配置实体,但hibernate引发以下异常: org.hibernate.MappingException: Could not determine type for: com.sd.entity.SDUserProductAcess, at table: SDUser, for columns: [org.hibernate.mapping.Column(productAccess)] [PersistEngine] Failed to initialize persistenc
org.hibernate.MappingException: Could not determine type for: com.sd.entity.SDUserProductAcess, at table: SDUser, for columns: [org.hibernate.mapping.Column(productAccess)]
[PersistEngine] Failed to initialize persistence engine!java.lang.NullPointerException
这些是我的实体:
@Entity
@Inheritance(strategy = InheritanceType.JOINED)
public class SDObject
{
@Id
@GeneratedValue
private long sdId;
private String sdType;
public long getSdId()
{
return sdId;
}
public void setSdId(long sdId)
{
this.sdId = sdId;
}
public String getSdType()
{
return sdType;
}
public void setSdType(String sdType)
{
this.sdType = sdType;
}
}
下一个:
@Entity
public class SDUser extends SDObject
{
@Column(unique = true)
private String code;
private String password;
private SDUserProductAcess productAccess;
public String getCode()
{
return code;
}
public void setCode(String code)
{
this.code = code;
}
public String getPassword()
{
return password;
}
public void setPassword(String password)
{
this.password = password;
}
@OneToMany(cascade = CascadeType.ALL, fetch = FetchType.LAZY)
public SDUserProductAcess getProductAccess()
{
return productAccess;
}
public void setProductAccess(SDUserProductAcess productAccess)
{
this.productAccess = productAccess;
}
最后一点:
@Entity
public class SDUserProductAcess extends SDObject
{
private boolean adm;
public boolean isAdm()
{
return adm;
}
public void setAdm(boolean adm)
{
this.adm = adm;
}
}
Hibernate无法确定位于SDUser实体中的列productAccess的类型。
我刚开始冬眠,不知道发生了什么
我应该提供某种身份证吗
谢谢 在
SDUser
中,您需要在SDUserAccess
上添加关联信息:
@ManyToOne
@JoinColumn(name = "sdId")
private SDUserProductAcess productAccess;