今天总结的hibernate异常。刚入门,所以异常比较简单
author:heaven
今天自学一个下午的hibernate,所处理过的异常如下:
异常1:
org.hibernate.MappingNotFoundException:resource:com.heaven.hibernatenotfound
原因:
你配置出问题了吗,注意要<mapping
resource="com/heaven/hibernate/aa.hbm.xml"/>//com/heaven/hibernate/包名
异常2:
Causedby:org.xml.sax.SAXParseException:Elementtype"hibernate-mapping"mustbe
declared.
<?xmlversion="1.0"encoding="UTF-8"?>
<!DOCTYPEhibernate-configurationPUBLIC
"-//Hibernate/HibernateConfigurationDTD3.0//EN"
"http://hibernate.sourceforge.net/hibernate-configuration-3.0.dtd">
<hibernate-configuration>
在XXX.hbm.xml的DTD改成
<?xmlversion="1.0"encoding="UTF-8"?>
<!DOCTYPEhibernate-mappingPUBLIC"-//Hibernate/HibernateMappingDTD3.0//EN"
"http://hibernate.sourceforge.net/hibernate-mapping-3.0.dtd">
异常3:
Causedby:org.hibernate.MappingException:classUsernotfoundwhilelookingfor
property:id
和
Causedby:org.hibernate.InvalidMappingException:Couldnotparsemappingdocumentfrom
resourcecom/heaven/hibernate/User.hbm.xml
和
Causedby:java.lang.ClassNotFoundException:User
这个可能因为我没在User.hbm.xml的<hibernate-mappingpackage="com.heaven.hibernate">那里定
义包这个属性,所以抛出这写异常