找错 什么状况？

错误提示:Exception in thread "main" org.hibernate.InvalidMappingException: Could not parse mapping document from resource com/sa/hibernate/User.hbm.xml
at org.hibernate.cfg.Configuration.addResource(Configuration.java:523)
at org.hibernate.cfg.Configuration.parseMappingElement(Configuration.java:1511)
at org.hibernate.cfg.Configuration.parseSessionFactory(Configuration.java:1479)
at org.hibernate.cfg.Configuration.doConfigure(Configuration.java:1458)
at org.hibernate.cfg.Configuration.doConfigure(Configuration.java:1432)
at org.hibernate.cfg.Configuration.configure(Configuration.java:1352)
at org.hibernate.cfg.Configuration.configure(Configuration.java:1338)
at com.sa.hibernate.ExportDB.main(ExportDB.java:13)
Caused by: org.hibernate.MappingException: invalid mapping
at org.hibernate.cfg.Configuration.addInputStream(Configuration.java:463)
at org.hibernate.cfg.Configuration.addResource(Configuration.java:520)
... 7 more
Caused by: org.xml.sax.SAXParseException: Document root element "hibernate-mapping", must match DOCTYPE root "hibernate-configuration".
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.rootElementSpecified(Unknown Source)
at org.apache.xerces.impl.dtd.XMLDTDValidator.handleStartElement(Unknown Source)
at org.apache.xerces.impl.dtd.XMLDTDValidator.startElement(Unknown Source)
at org.apache.xerces.impl.XMLNSDocumentScannerImpl.scanStartElement(Unknown Source)
at org.apache.xerces.impl.XMLNSDocumentScannerImpl$NSContentDispatcher.scanRootElementHook(Unknown Source)
at org.apache.xerces.impl.XMLDocumentFragmentScannerImpl$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.dom4j.io.SAXReader.read(SAXReader.java:465)
at org.hibernate.cfg.Configuration.addInputStream(Configuration.java:460)
... 8 more
herbinate.cfg.xml
<!DOCTYPE hibernate-configuration PUBLIC
"-//Hibernate/Hibernate Configuration DTD 3.0//EN"
"http://hibernate.sourceforge.net/hibernate-configuration-3.0.dtd"><hibernate-configuration>
<session-factory >
        <property name="hibernate.connetion.driver_class">com.microsoft.jdbc.sqlserver.SQLServerDriver</property>
      <property name="hibernate.connetion.url">jdbc:microsoft:sqlserver://localhost:1433;DatabaseName=a</property>
      <property name="hibernate.connetion.usename">sa</property>
      <property name="hibernate.connetion.password">sa</property>
      <property name="show_sql">true</property>
      <property name="hibernate.dialect">org.hibernate.dialect.SQLServerDialect</property>
      <mapping resource="com/sa/hibernate/User.hbm.xml"/>
</session-factory>
</hibernate-configuration>
user.hbm.xml
<!DOCTYPE hibernate-configuration PUBLIC
"-//Hibernate/Hibernate Configuration DTD 3.0//EN"
"http://hibernate.sourceforge.net/hibernate-configuration-3.0.dtd">
<hibernate-mapping>
     <class name="com.sa.hibernate.User">
     <id name="id" type="String">
          <generator class="uuid"/>
      </id>
      <property name="name"/>
      <property name="password"/>
      <property name="createTime"/>
      <property name="expireTime"/>
     </class>
</hibernate-mapping>
ExportDBpackage com.sa.hibernate;import org.hibernate.cfg.Configuration;
import org.hibernate.tool.hbm2ddl.SchemaExport;
/**
 * 将hbm生产ddl（表）
 * */
public class ExportDB {
public static void main(String args[]){
//默认读取hibernate.cfg.xml
Configuration  cfg=new Configuration().configure();
SchemaExport export=new SchemaExport(cfg);
export.create(true, true);
}
}