Hibernate 4.無效的映射例外。無法讀取XML。元素類型必須聲明爲hibernate-mapping

我有InvalidMappingException方法調用org.hibernate.cfg.Configuration.configure()。Hibernate 4.無效的映射例外。無法讀取XML。元素類型必須聲明爲hibernate-mapping

堆棧跟蹤：


javax.servlet.ServletException: org.hibernate.InvalidMappingException: Unable to read XML 
    org.apache.struts.chain.ComposableRequestProcessor.process(ComposableRequestProcessor.java:286) 
    org.apache.struts.action.ActionServlet.process(ActionServlet.java:1913) 
    org.apache.struts.action.ActionServlet.doPost(ActionServlet.java:462) 
    javax.servlet.http.HttpServlet.service(HttpServlet.java:647) 
    javax.servlet.http.HttpServlet.service(HttpServlet.java:728) 

root cause 

org.hibernate.InvalidMappingException: Unable to read XML 
    org.hibernate.internal.util.xml.MappingReader.readMappingDocument(MappingReader.java:109) 
    org.hibernate.cfg.Configuration.add(Configuration.java:488) 
    org.hibernate.cfg.Configuration.add(Configuration.java:484) 
    org.hibernate.cfg.Configuration.add(Configuration.java:657) 
    org.hibernate.cfg.Configuration.addResource(Configuration.java:740) 
    org.hibernate.cfg.Configuration.parseMappingElement(Configuration.java:2188) 
    org.hibernate.cfg.Configuration.parseSessionFactory(Configuration.java:2160) 
    org.hibernate.cfg.Configuration.doConfigure(Configuration.java:2140) 
    org.hibernate.cfg.Configuration.doConfigure(Configuration.java:2093) 
    org.hibernate.cfg.Configuration.configure(Configuration.java:2008) 
    org.hibernate.cfg.Configuration.configure(Configuration.java:1987) 
    com.petrez.util.HibernateUtil.getSessionFactory(HibernateUtil.java:12) 
    com.action.UserAction.setUser(UserAction.java:29) 
    sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) 
    sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57) 
    sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) 
    java.lang.reflect.Method.invoke(Method.java:601) 
    org.apache.struts.actions.DispatchAction.dispatchMethod(DispatchAction.java:269) 
    org.apache.struts.actions.DispatchAction.execute(DispatchAction.java:170) 
    org.apache.struts.chain.commands.servlet.ExecuteAction.execute(ExecuteAction.java:58) 
    org.apache.struts.chain.commands.AbstractExecuteAction.execute(AbstractExecuteAction.java:67) 
    org.apache.struts.chain.commands.ActionCommandBase.execute(ActionCommandBase.java:51) 
    org.apache.commons.chain.impl.ChainBase.execute(ChainBase.java:191) 
    org.apache.commons.chain.generic.LookupCommand.execute(LookupCommand.java:305) 
    org.apache.commons.chain.impl.ChainBase.execute(ChainBase.java:191) 
    org.apache.struts.chain.ComposableRequestProcessor.process(ComposableRequestProcessor.java:283) 
    org.apache.struts.action.ActionServlet.process(ActionServlet.java:1913) 
    org.apache.struts.action.ActionServlet.doPost(ActionServlet.java:462) 
    javax.servlet.http.HttpServlet.service(HttpServlet.java:647) 
    javax.servlet.http.HttpServlet.service(HttpServlet.java:728) 

root cause 

org.xml.sax.SAXParseException; systemId: ; lineNumber: 5; columnNumber: 47; Element type "hibernate-mapping" must be declared. 
    org.apache.xerces.framework.XMLParser.reportError(XMLParser.java:1213) 
    org.apache.xerces.validators.common.XMLValidator.reportRecoverableXMLError(XMLValidator.java:1807) 
    org.apache.xerces.validators.common.XMLValidator.validateElementAndAttributes(XMLValidator.java:3633) 
    org.apache.xerces.validators.common.XMLValidator.callStartElement(XMLValidator.java:1229) 
    org.apache.xerces.framework.XMLDocumentScanner.scanElement(XMLDocumentScanner.java:1806) 
    org.apache.xerces.framework.XMLDocumentScanner$ContentDispatcher.dispatch(XMLDocumentScanner.java:949) 
    org.apache.xerces.framework.XMLDocumentScanner.parseSome(XMLDocumentScanner.java:381) 
    org.apache.xerces.framework.XMLParser.parse(XMLParser.java:1098) 
    org.dom4j.io.SAXReader.read(SAXReader.java:465) 
    org.hibernate.internal.util.xml.MappingReader.readMappingDocument(MappingReader.java:78) 
    org.hibernate.cfg.Configuration.add(Configuration.java:488) 
    org.hibernate.cfg.Configuration.add(Configuration.java:484) 
    org.hibernate.cfg.Configuration.add(Configuration.java:657) 
    org.hibernate.cfg.Configuration.addResource(Configuration.java:740) 
    org.hibernate.cfg.Configuration.parseMappingElement(Configuration.java:2188) 
    org.hibernate.cfg.Configuration.parseSessionFactory(Configuration.java:2160) 
    org.hibernate.cfg.Configuration.doConfigure(Configuration.java:2140) 
    org.hibernate.cfg.Configuration.doConfigure(Configuration.java:2093) 
    org.hibernate.cfg.Configuration.configure(Configuration.java:2008) 
    org.hibernate.cfg.Configuration.configure(Configuration.java:1987) 
    com.petrez.util.HibernateUtil.getSessionFactory(HibernateUtil.java:12) 
    com.action.UserAction.setUser(UserAction.java:29) 
    sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) 
    sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57) 
    sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) 
    java.lang.reflect.Method.invoke(Method.java:601) 
    org.apache.struts.actions.DispatchAction.dispatchMethod(DispatchAction.java:269) 
    org.apache.struts.actions.DispatchAction.execute(DispatchAction.java:170) 
    org.apache.struts.chain.commands.servlet.ExecuteAction.execute(ExecuteAction.java:58) 
    org.apache.struts.chain.commands.AbstractExecuteAction.execute(AbstractExecuteAction.java:67) 
    org.apache.struts.chain.commands.ActionCommandBase.execute(ActionCommandBase.java:51) 
    org.apache.commons.chain.impl.ChainBase.execute(ChainBase.java:191) 
    org.apache.commons.chain.generic.LookupCommand.execute(LookupCommand.java:305) 
    org.apache.commons.chain.impl.ChainBase.execute(ChainBase.java:191) 
    org.apache.struts.chain.ComposableRequestProcessor.process(ComposableRequestProcessor.java:283) 
    org.apache.struts.action.ActionServlet.process(ActionServlet.java:1913) 
    org.apache.struts.action.ActionServlet.doPost(ActionServlet.java:462) 
    javax.servlet.http.HttpServlet.service(HttpServlet.java:647) 
    javax.servlet.http.HttpServlet.service(HttpServlet.java:728)

配置文件： 的hibernate.cfg.xml

<?xml version="1.0" encoding="UTF-8"?> 
<!DOCTYPE hibernate-configuration PUBLIC 
"-//Hibernate/Hibernate Configuration DTD 3.0//EN" 
"http://www.hibernate.sourceforge.net/hibernate-configuration-3.0.dtd"> 
<hibernate-configuration> 
    <session-factory> 
     <property name="hibernate.bytecode.use_reflection_optimizer">false</property> 
     <property name="hibernate.connection.driver_class">com.mysql.jdbc.Driver</property> 
     <property name="hibernate.connection.url">jdbc:mysql://localhost:3306/LIBRARY</property> 
     <property name="hibernate.connection.username">root</property> 
     <property name="hibernate.connection.password">G190419g</property> 
     <property name="hibernate.dialect">org.hibernate.dialect.MySQLDialect</property> 
     <property name="hibernate.show_sql">false</property> 
     <property name="hibernate.current_session_context_class">thread</property> 
     <property name="hibernate.cglib.use_reflection_optimizer">false</property> 
     <property name="hibernate.c3p0.acquire_increment">1</property> 
     <property name="hibernate.c3p0.idle_test_period">3000</property> 
     <property name="hibernate.c3p0.max_size">100</property> 
     <property name="hibernate.c3p0.max_statements">50</property> 
     <property name="hibernate.c3p0.min_size">10</property> 
     <property name="hibernate.c3p0.timeout">100</property> 
     <property name="hibernate.c3p0.testConnectionOnCheckout">true</property> 
     <mapping resource="com/petrez/model/Users.hbm.xml" /> 
    </session-factory> 
</hibernate-configuration>

映射文件： Users.hbm.xml

<?xml version='1.0' encoding='UTF-8'?> 
<!DOCTYPE hibernate-mapping PUBLIC 
     "-//Hibernate/Hibernate Mapping DTD 3.0//EN" 
     "http://www.hibernate.sourceforge.net/hibernate-mapping-3.0.dtd"> 
<hibernate-mapping package="com.petrez.model"> 
    <class name="Users" table="Users" > 
     <id name="id" column="Id" type="java.lang.Integer" > 
      <generator class="increment"/> 
     </id> 

     <property name="firstName" type="java.lang.String"> 
      <column name="FirstName" length="45" /> 
     </property> 

     <property name="lastName" type="java.lang.String"> 
      <column name="LastName" length="45" /> 
     </property> 

     <property name="eMail" type="java.lang.String"> 
      <column name="Email" length="45" /> 
     </property> 
    </class> 
</hibernate-mapping>

所以有人可以說我這裏的一個錯誤在哪裏？謝謝。

UPD：項目結構。

Project Structure

嘛。我沒有找到解決方案，但註釋幫助了我。

來源

2013-10-07 Petr Shypila

不知怎的，Hibernate有分析您的Users.hbm.xml文件的問題，不知道/理解「休眠映射」。因爲我使用Annotation而不是通過hbm-files配置，所以我不能告訴你更多。 – ssindelar

可能的重複：http://stackoverflow.com/questions/17114046/hibernate-error-possibly-with-dtd-declaration – Manish

你可以在'hibernate-mapping'屬性中刪除'Package Name'並運行該項目。項目成功運行。我可以告訴你爲什麼你有這個異常，爲了解釋這一切，我們需要知道包的層次結構及其類。否則它可能是Hibernate映射xml文件中的DTD頭文件的問題 – Hareesh

從Java類型更改映射類型到Hibernate類型：對於字符串我給的例子：

<property name="logMsg" type="string"> 
      <column name="LOG_MSG" length="35" /> 
     </property>

來源

2013-10-07 09:15:10 CHowdappaM

Hibernate 4.無效的映射例外。無法讀取XML。元素類型必須聲明爲hibernate-mapping

回答

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