SSH整合时出现的问题，每当在Hibernate的映射文件中加入多对一的关系设置就会出现下列报错
2013-11-15 14:04:42 org.apache.catalina.startup.HostConfig checkResources信息: Reloading context [/Team03-OAManage]
2013-11-15 14:04:42 org.apache.catalina.core.StandardContext stop
信息: Container org.apache.catalina.core.ContainerBase.[Catalina].[localhost].[/Team03-OAManage] has not been started
2013-11-15 14:04:42 org.apache.catalina.core.ApplicationContext log
信息: Initializing Spring root WebApplicationContext
log4j:WARN No appenders could be found for logger (org.springframework.web.context.ContextLoader).
log4j:WARN Please initialize the log4j system properly.
log4j:WARN See http://logging.apache.org/log4j/1.2/faq.html#noconfig for more info.
2013-11-15 14:04:45 org.apache.catalina.core.StandardContext listenerStart
严重: 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 class path resource [applicationContext.xml]: Invocation of init method failed; nested exception is org.hibernate.MappingException: An association from the table users refers to an unmapped class: Role
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1482)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:521)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:458)
at org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:295)
at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:223)
at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:292)
at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:194)
at org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:608)
at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:932)
at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:479)
at org.springframework.web.context.ContextLoader.configureAndRefreshWebApplicationContext(ContextLoader.java:389)
at org.springframework.web.context.ContextLoader.initWebApplicationContext(ContextLoader.java:294)
at org.springframework.web.context.ContextLoaderListener.contextInitialized(ContextLoaderListener.java:112)
at org.apache.catalina.core.StandardContext.listenerStart(StandardContext.java:4206)
at org.apache.catalina.core.StandardContext.start(StandardContext.java:4705)
at org.apache.catalina.startup.HostConfig.checkResources(HostConfig.java:1284)
at org.apache.catalina.startup.HostConfig.check(HostConfig.java:1382)
at org.apache.catalina.startup.HostConfig.lifecycleEvent(HostConfig.java:306)
at org.apache.catalina.util.LifecycleSupport.fireLifecycleEvent(LifecycleSupport.java:142)
at org.apache.catalina.core.ContainerBase.backgroundProcess(ContainerBase.java:1389)
at org.apache.catalina.core.ContainerBase$ContainerBackgroundProcessor.processChildren(ContainerBase.java:1653)
at org.apache.catalina.core.ContainerBase$ContainerBackgroundProcessor.processChildren(ContainerBase.java:1662)
at org.apache.catalina.core.ContainerBase$ContainerBackgroundProcessor.run(ContainerBase.java:1642)
at java.lang.Thread.run(Thread.java:619)
Caused by: org.hibernate.MappingException: An association from the table users refers to an unmapped class: Role
at org.hibernate.cfg.Configuration.secondPassCompileForeignKeys(Configuration.java:1299)
at org.hibernate.cfg.Configuration.secondPassCompile(Configuration.java:1217)
at org.hibernate.cfg.Configuration.buildMappings(Configuration.java:1162)
at org.springframework.orm.hibernate3.LocalSessionFactoryBean.buildSessionFactory(LocalSessionFactoryBean.java:720)
at org.springframework.orm.hibernate3.AbstractSessionFactoryBean.afterPropertiesSet(AbstractSessionFactoryBean.java:188)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.invokeInitMethods(AbstractAutowireCapableBeanFactory.java:1541)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1479)
... 23 more
2013-11-15 14:04:45 org.apache.catalina.core.StandardContext start
严重: Error listenerStart
2013-11-15 14:04:45 org.apache.catalina.core.StandardContext start
严重: Context [/Team03-OAManage] startup failed due to previous errors
2013-11-15 14:04:45 org.apache.catalina.core.ApplicationContext log
信息: Closing Spring root WebApplicationContext
SSH整合 多对一关系 --------------------编程问答-------------------- 这个应该是类路径没有写对，配置文件和映射文件都看下。
比如<hibernate-mapping package="***">或者<class name="****">中的。 --------------------编程问答-------------------- 你看一下Role这个类的映射文件，应该这个文件有问题，看下关系映射那里有没有lize
补充：Java , Java EE
