java - Hibernate-无法从输入流解析映射文档

Question

我已经构建了一个在服务器上运行的 java 应用程序(maven)。我使用 Eclipse Luna、Spring 4 和 Hibernate 4。当我运行它时，出现错误:

SEVERE: Exception sending context initialized event to listener instance of class org.springframework.web.context.ContextLoaderListener
org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'sessionFactory' defined in ServletContext resource [/WEB-INF//applicationContext.xml]: Invocation of init method failed; nested exception is org.hibernate.InvalidMappingException: Could not parse mapping document from input stream
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1574)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:539)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:476)
at org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:303)
at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:230)
at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:299)
at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:194)
at org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:736)
at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:757)
at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:480)
at org.springframework.web.context.ContextLoader.configureAndRefreshWebApplicationContext(ContextLoader.java:403)
at org.springframework.web.context.ContextLoader.initWebApplicationContext(ContextLoader.java:306)
at org.springframework.web.context.ContextLoaderListener.contextInitialized(ContextLoaderListener.java:106)
at org.apache.catalina.core.StandardContext.listenerStart(StandardContext.java:5016)
at org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:5528)
at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:150)
at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1575)
at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1565)
at java.util.concurrent.FutureTask.run(FutureTask.java:266)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
at java.lang.Thread.run(Thread.java:745)
Caused by: org.hibernate.InvalidMappingException: Could not parse mapping document from input stream
at org.hibernate.cfg.Configuration$MetadataSourceQueue.processHbmXml(Configuration.java:3762)
at org.hibernate.cfg.Configuration$MetadataSourceQueue.processHbmXmlQueue(Configuration.java:3751)
at org.hibernate.cfg.Configuration$MetadataSourceQueue.processMetadata(Configuration.java:3739)
at org.hibernate.cfg.Configuration.secondPassCompile(Configuration.java:1410)
at org.hibernate.cfg.Configuration.buildSessionFactory(Configuration.java:1844)
at org.hibernate.cfg.Configuration.buildSessionFactory(Configuration.java:1928)
at org.springframework.orm.hibernate4.LocalSessionFactoryBuilder.buildSessionFactory(LocalSessionFactoryBuilder.java:372)
at org.springframework.orm.hibernate4.LocalSessionFactoryBean.buildSessionFactory(LocalSessionFactoryBean.java:454)
at org.springframework.orm.hibernate4.LocalSessionFactoryBean.afterPropertiesSet(LocalSessionFactoryBean.java:439)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.invokeInitMethods(AbstractAutowireCapableBeanFactory.java:1633)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1570)
... 21 more
Caused by: org.hibernate.DuplicateMappingException: Duplicate class/entity mapping com.hibernate.data.Person
at org.hibernate.cfg.Configuration$MappingsImpl.addClass(Configuration.java:2835)
at org.hibernate.cfg.HbmBinder.bindRoot(HbmBinder.java:178)
at org.hibernate.cfg.Configuration$MetadataSourceQueue.processHbmXml(Configuration.java:3759)
... 31 more

在网上搜索类似的问题，我认为这是由于缺少一些hibernate依赖项而发生的，并添加了它们。但它不起作用。现在，我没有主意了!

我的项目在这里:https://github.com/fsel/Spring-Hibernate-JSF-MySQL-Eclipse-Integration/tree/master/Spring-Hibernate-JSF-MySQL-Example

如有任何帮助，我们将不胜感激。 谢谢!

Answer 1

Person 类 被加载两次。

在 Spring 配置 - applicationContext.xml 文件中，您有:

<property name="mappingResources">
            <list>
                <value>domain-classes.hbm.xml</value>
            </list>
        </property>

此外，在 hibernate 配置 - hibernate.cfg.xml 文件中，您将再次加载它:

<mapping resource="domain-classes.hbm.xml"/>

要解决此问题，只需从 Spring 配置文件或 Hibernate 配置文件中删除上述条目之一即可。