org.hibernate.MappingException: Unknown entity
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最近学习Hiberante Annotations时遇到了该问题org.hibernate.MappingException: Unknown entity
原因一:
没有在*.cfg.xml文件中加入 *.hbm.xml造成的!!!
原因二:
映射文件的路径描述错误导致
<hibernate-configuration>
<session-factory>
<mapping resource="com/atguigu/hibernate/entities/n21/both/Customer.hbm.xml"/>
</session-factory>
</hibernate-configuration>
原因三:
这个我是引用的别的坛友的,自己暂时没遇到!!
发现是import Entity类造成的(使用Eclipse自动提示导入的该包)
import javax.persistence.Id;
import javax.persistence.Table;
import javax.persistence.Transient;
import org.hibernate.annotations.Entity;//这是就出问题了哦
@Entity
@Table(name="test_person")
public class Person implements Serializable
import javax.persistence.Table;
import javax.persistence.Transient;
import org.hibernate.annotations.Entity;//这是就出问题了哦
@Entity
@Table(name="test_person")
public class Person implements Serializable
后面修改了引入的Entity
import javax.persistence.Id;
import javax.persistence.Table;
import javax.persistence.Transient;
import javax.persistence.Entity;//引入这个类就正确了
@Entity
@Table(name="test_person")
public class Person implements Serializable
import javax.persistence.Table;
import javax.persistence.Transient;
import javax.persistence.Entity;//引入这个类就正确了
@Entity
@Table(name="test_person")
public class Person implements Serializable
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