The content of element type "class" must match "(meta*,subselect?,cache?,synchro-优快云博客

本文通过一个具体的案例，详细解析了Hibernate中XML映射文件配置错误导致的问题及解决过程。作者分享了如何定位并修正XML文件中关于class元素配置的错误。

摘要生成于 C知道，由 DeepSeek-R1 满血版支持，前往体验 >

Caused by: org.hibernate.InvalidMappingException: Unable to read XML
	at org.hibernate.internal.util.xml.MappingReader.readMappingDocument(MappingReader.java:109)
	at org.hibernate.cfg.Configuration.add(Configuration.java:488)
	at org.hibernate.cfg.Configuration.add(Configuration.java:484)
	at org.hibernate.cfg.Configuration.add(Configuration.java:657)
	at org.hibernate.cfg.Configuration.addInputStream(Configuration.java:695)
	at org.springframework.orm.hibernate4.LocalSessionFactoryBean.afterPropertiesSet(LocalSessionFactoryBean.java:291)
	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.invokeInitMethods(AbstractAutowireCapableBeanFactory.java:1571)
	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1509)
	... 181 more
Caused by: org.xml.sax.SAXParseException: The content of element type "class" must match "(meta*,subselect?,cache?,synchronize*,comment?,tuplizer*,(id|composite-id),discriminator?,natural-id?,(version|timestamp)?,(property|many-to-one|one-to-one|component|dynamic-component|properties|any|map|set|list|bag|idbag|array|primitive-array)*,((join*,subclass*)|joined-subclass*|union-subclass*),loader?,sql-insert?,sql-update?,sql-delete?,filter*,fetch-profile*,resultset*,(query|sql-query)*)".
	at org.apache.xerces.util.ErrorHandlerWrapper.createSAXParseException(Unknown Source)
	at org.apache.xerces.util.ErrorHandlerWrapper.error(Unknown Source)
	at org.apache.xerces.impl.XMLErrorReporter.reportError(Unknown Source)
	at org.apache.xerces.impl.XMLErrorReporter.reportError(Unknown Source)
	at org.apache.xerces.impl.dtd.XMLDTDValidator.handleEndElement(Unknown Source)
	at org.apache.xerces.impl.dtd.XMLDTDValidator.endElement(Unknown Source)
	at org.apache.xerces.impl.XMLNSDocumentScannerImpl.scanEndElement(Unknown Source)
	at org.apache.xerces.impl.XMLDocumentFragmentScannerImpl$FragmentContentDispatcher.dispatch(Unknown Source)
	at org.apache.xerces.impl.XMLDocumentFragmentScannerImpl.scanDocument(Unknown Source)
	at org.apache.xerces.parsers.XML11Configuration.parse(Unknown Source)
	at org.apache.xerces.parsers.XML11Configuration.parse(Unknown Source)
	at org.apache.xerces.parsers.XMLParser.parse(Unknown Source)
	at org.apache.xerces.parsers.AbstractSAXParser.parse(Unknown Source)
	at org.apache.xerces.jaxp.SAXParserImpl$JAXPSAXParser.parse(Unknown Source)
	at org.dom4j.io.SAXReader.read(SAXReader.java:465)
	at org.hibernate.internal.util.xml.MappingReader.readMappingDocument(MappingReader.java:78)
	... 188 more

解决这个问题弄得我想死的心都有了，看上去还挺简单，这不XML有问题嘛，都写着Unable to read XML

所以先检查了Server 端所有的xml配置文件，什么hibernate啊，什么eventMapping啊，还有business,dao的xml都看了，没看出什么毛病

The content of element type "class" must match ……

从这个error log呢明显觉得是class元素的配置有问题，我以为是以前一向可能出现的问题，property写的时候写错啦，或者双引号之类的弄丢啦，检查了一大堆，最后借助百度对比其他的hibernate文件，方知自己sa缺了，把versionNo property位置放错了。手贱，没事换什么位置，放后面又不会好看点。。。。当时写的时候就觉得这属性应该给creat_user,create_date,update_user,update_date站在一起。结果呢，结果sa缺的找了一上午，也没解决问题，好在这会终于清醒了，oh，阿门……

<hibernate-mapping>
  <class dynamic-update="true" lazy="true" table="TMP_DK_ASSESSMENT_UPLOAD" dynamic-insert="true" name="com.shkco.adsr3.staticdata.vo.TmpDkAssessmentInfo">
    <id name="id" type="long" column="ID">
      <generator class="sequence">
        <param name="sequence">SEQ_DK_ASSESSMENT_UPLOAD_ID</param>
      </generator>
    </id>
    <version unsaved-value="undefined" name="versionNo" column="VERSION_NO" type="long"/>
    <property name="ccdRefId" column="CCD_REF_ID" not-null="true" type="long"/>
    <property name="dkReviewDate" column="DK_REVIEW_DATE" not-null="true" type="timestamp"/>
    <property name="createDate" column="CREATE_DATE" not-null="true" type="timestamp"/>
    <property name="createUser" column="CREATE_USER" not-null="true" type="long"/>
    <property name="updateDate" column="UPDATE_DATE" not-null="true" type="timestamp"/>
    <property name="updateUser" column="UPDATE_USER" not-null="true" type="long"/>
  </class>
</hibernate-mapping>

class里面的元素，id标签过了一定要是version,再是property,多之前就是因为把version放到了createDate前面，而自己全然不知，无知。。。。

记录长个记醒……

copy也需要按套路来，不然死很惨都不知道……