一个新手关于Hibernate错误的问题！

Question

信息: Server startup in 14396 ms
org.hibernate.MappingException: invalid configuration
at org.hibernate.cfg.Configuration.doConfigure(Configuration.java:1369)
at org.hibernate.cfg.Configuration.configure(Configuration.java:1310)
at org.hibernate.cfg.Configuration.configure(Configuration.java:1296)
at LoginAction.execute(LoginAction.java:27)
at org.apache.struts.chain.commands.servlet.ExecuteAction.execute(ExecuteAction.java:58)
at org.apache.struts.chain.commands.AbstractExecuteAction.execute(AbstractExecuteAction.java:67)
at org.apache.struts.chain.commands.ActionCommandBase.execute(ActionCommandBase.java:51)
at org.apache.commons.chain.impl.ChainBase.execute(ChainBase.java:190)
at org.apache.commons.chain.generic.LookupCommand.execute(LookupCommand.java:304)
at org.apache.commons.chain.impl.ChainBase.execute(ChainBase.java:190)
at org.apache.struts.chain.ComposableRequestProcessor.process(ComposableRequestProcessor.java:283)
at org.apache.struts.action.ActionServlet.process(ActionServlet.java:1913)
at org.apache.struts.action.ActionServlet.doPost(ActionServlet.java:462)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:710)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:803)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:230)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:175)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:128)
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:104)
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109)
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:261)
at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:844)
at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:581)
at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:447)
at java.lang.Thread.run(Unknown Source)
Caused by: org.xml.sax.SAXParseException: Document is invalid: no grammar found.
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.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.doConfigure(Configuration.java:1366)
... 26 more

Answer 1

我自己写的映射文件
<?xml version="1.0" encoding="UTF-8"?>
<hibernate-mapping>
<class name="User" table="users">
<property name="username" column="USERNAME"/>
<property name="password" column="PASSWORD"/>
</class>
</hibernate-mapping>
请问给位大侠哪里有问题啊？ 那个HIBERNATE.CFG.XML配置文件都再一个包里，我用的是MYECLIPSE

Answer 2

我的配置文件是
<?xml version='1.0' encoding='UTF-8'?><hibernate-configuration><session-factory>
<property name="connection.username">sa</property>
<property name="connection.password"></property>
<property name="connection.url">
jdbc:microsoft:sqlserver://ZJNOALL:1433;DatabaseName=Admin
</property>
<property name="dialect">
net.sf.hibernate.dialect.SQLServerDialect
</property> <property name="connection.driver_class">
com.microsoft.jdbc.sqlserver.SQLServerDriver
</property>
<mapping resource="User.xml"></mapping></session-factory></hibernate-configuration>

Answer 3

user包名没有吧？
 <class name="com.app.domain.Users" table="users" schema="dbo" catalog="angel">
        <id name="id" type="java.lang.Integer">
            <column name="id" />
            <generator class="identity" />
        </id>
        <property name="username" type="java.lang.String">
            <column name="username" length="30" not-null="true" unique="true" />
        </property>

Answer 4

同意!
sessionFactory在初始化的时候会由当前的classLoader读取配置文件,加载了配置文件的时候它会去找你配置的class在不在, 你想象一下class.forName("Users")它能找到么?

Answer 5

问题是我用的是默认包，默认包是defoult package 包名是什么啊？我新手啊，对包还不是很清楚啊！！！望各位指点啊！！！！！！！！！！！！！！！！