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entity class not found: Babys

    博客分类:
  • bug
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在启动服务器的时候,报错:

2014-4-28 9:16:13 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 file [D:\Tomcat6.0\webapps\school\WEB-INF\classes\applicationContext.xml]: Invocation of init method failed; nested exception is org.hibernate.MappingException: entity class not found: Babys
	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1338)
	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:473)
	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory$1.run(AbstractAutowireCapableBeanFactory.java:409)
	at java.security.AccessController.doPrivileged(Native Method)
	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:380)
	at org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:264)
	at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:222)
	at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:261)
	at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:185)
	at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:164)
	at org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:423)
	at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:728)
	at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:380)
	at org.springframework.web.context.ContextLoader.createWebApplicationContext(ContextLoader.java:255)
	at org.springframework.web.context.ContextLoader.initWebApplicationContext(ContextLoader.java:199)
	at org.springframework.web.context.ContextLoaderListener.contextInitialized(ContextLoaderListener.java:45)
	at org.apache.catalina.core.StandardContext.listenerStart(StandardContext.java:4135)
	at org.apache.catalina.core.StandardContext.start(StandardContext.java:4630)
	at org.apache.catalina.core.ContainerBase.addChildInternal(ContainerBase.java:791)
	at org.apache.catalina.core.ContainerBase.addChild(ContainerBase.java:771)
	at org.apache.catalina.core.StandardHost.addChild(StandardHost.java:546)
	at org.apache.catalina.startup.HostConfig.deployDirectory(HostConfig.java:1041)
	at org.apache.catalina.startup.HostConfig.deployDirectories(HostConfig.java:964)
	at org.apache.catalina.startup.HostConfig.deployApps(HostConfig.java:502)
	at org.apache.catalina.startup.HostConfig.start(HostConfig.java:1277)
	at org.apache.catalina.startup.HostConfig.lifecycleEvent(HostConfig.java:321)
	at org.apache.catalina.util.LifecycleSupport.fireLifecycleEvent(LifecycleSupport.java:119)
	at org.apache.catalina.core.ContainerBase.start(ContainerBase.java:1053)
	at org.apache.catalina.core.StandardHost.start(StandardHost.java:785)
	at org.apache.catalina.core.ContainerBase.start(ContainerBase.java:1045)
	at org.apache.catalina.core.StandardEngine.start(StandardEngine.java:445)
	at org.apache.catalina.core.StandardService.start(StandardService.java:519)
	at org.apache.catalina.core.StandardServer.start(StandardServer.java:710)
	at org.apache.catalina.startup.Catalina.start(Catalina.java:581)
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
	at java.lang.reflect.Method.invoke(Unknown Source)
	at org.apache.catalina.startup.Bootstrap.start(Bootstrap.java:289)
	at org.apache.catalina.startup.Bootstrap.main(Bootstrap.java:414)
Caused by: org.hibernate.MappingException: entity class not found: Babys
	at org.hibernate.mapping.PersistentClass.getMappedClass(PersistentClass.java:99)
	at org.hibernate.tuple.PropertyFactory.getGetter(PropertyFactory.java:168)
	at org.hibernate.tuple.PropertyFactory.buildIdentifierProperty(PropertyFactory.java:44)
	at org.hibernate.tuple.entity.EntityMetamodel.<init>(EntityMetamodel.java:123)
	at org.hibernate.persister.entity.AbstractEntityPersister.<init>(AbstractEntityPersister.java:434)
	at org.hibernate.persister.entity.SingleTableEntityPersister.<init>(SingleTableEntityPersister.java:109)
	at org.hibernate.persister.PersisterFactory.createClassPersister(PersisterFactory.java:55)
	at org.hibernate.impl.SessionFactoryImpl.<init>(SessionFactoryImpl.java:226)
	at org.hibernate.cfg.Configuration.buildSessionFactory(Configuration.java:1294)
	at org.springframework.orm.hibernate3.LocalSessionFactoryBean.newSessionFactory(LocalSessionFactoryBean.java:814)
	at org.springframework.orm.hibernate3.LocalSessionFactoryBean.buildSessionFactory(LocalSessionFactoryBean.java:732)
	at org.springframework.orm.hibernate3.AbstractSessionFactoryBean.afterPropertiesSet(AbstractSessionFactoryBean.java:211)
	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.invokeInitMethods(AbstractAutowireCapableBeanFactory.java:1369)
	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1335)
	... 39 more
Caused by: java.lang.ClassNotFoundException: Babys
	at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1645)
	at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1491)
	at java.lang.ClassLoader.loadClassInternal(Unknown Source)
	at java.lang.Class.forName0(Native Method)
	at java.lang.Class.forName(Unknown Source)
	at org.hibernate.util.ReflectHelper.classForName(ReflectHelper.java:100)
	at org.hibernate.mapping.PersistentClass.getMappedClass(PersistentClass.java:96)
	... 52 more
2014-4-28 9:16:13 org.apache.catalina.core.StandardContext start
严重: Error listenerStart
2014-4-28 9:16:13 org.apache.catalina.core.StandardContext start
严重: Context [/school] startup failed due to previous errors
2014-4-28 9:16:13 org.apache.catalina.core.ApplicationContext log
信息: Closing Spring root WebApplicationContext
2014-4-28 9:16:13 org.apache.catalina.loader.WebappClassLoader clearReferencesJdbc
严重: The web application [/school] registered the JBDC driver [com.mysql.jdbc.Driver] but failed to unregister it when the web application was stopped. To prevent a memory leak, the JDBC Driver has been forcibly unregistered.
2014-4-28 9:16:13 org.apache.catalina.loader.WebappClassLoader clearReferencesThreads
严重: The web application [/school] appears to have started a thread named [MySQL Statement Cancellation Timer] but has failed to stop it. This is very likely to create a memory leak.


解决办法:提示找不到的映谢文件的JAVA类,可是明明是存在的啊.很奇怪,有时我将其类名字改变就没有报错,但是其它映射文件的类,修改类名字也没有用,配置文件与Babys.hbm.xml文件的column没有错啊。最后我拿来以前工程里的**.hbm.xml进行比较,
其实是在映射文件中class name=""路径没有写完整.应该把包名写上:如:com.zh.school.entity.Babys
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