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

Causedby:org.hibernate.InvalidMappingException:Couldnotparsemappingdocumentfrom

resourcecom/heaven/hibernate/User.hbm.xml

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

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