解决错误Error creating bean with name 'MySessionFactory' defined in class path resource [applicationContext.xml]: Invocation of init

log4j:WARN No appenders could be found for logger (org.springframework.context.support.ClassPathXmlApplicationContext).

log4j:WARN Please initialize the log4j system properly.

log4j:WARN See http://logging.apache.org/log4j/1.2/faq.html#noconfig for more info.

Exception in thread "main" org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'MySessionFactory' defined in class path resource [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:1420)

at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:519)

at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:456)

at org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:291)

at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:222)

at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:288)

at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:190)

at org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:563)

at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:895)

at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:425)

at org.springframework.context.support.ClassPathXmlApplicationContext.<init>(ClassPathXmlApplicationContext.java:139)

at org.springframework.context.support.ClassPathXmlApplicationContext.<init>(ClassPathXmlApplicationContext.java:83)

at bbs.service.impl.MessageServiceImplTest.main(MessageServiceImplTest.java:13)

Caused by: org.hibernate.InvalidMappingException: Could not parse mapping document from input stream

at org.hibernate.cfg.Configuration$MetadataSourceQueue.processHbmXml(Configuration.java:3951)

at org.hibernate.cfg.Configuration$MetadataSourceQueue.processHbmXmlQueue(Configuration.java:3940)

at org.hibernate.cfg.Configuration$MetadataSourceQueue.processMetadata(Configuration.java:3928)

at org.hibernate.cfg.Configuration.secondPassCompile(Configuration.java:1368)

at org.hibernate.cfg.Configuration.buildMappings(Configuration.java:1345)

at org.springframework.orm.hibernate3.LocalSessionFactoryBean.buildSessionFactory(LocalSessionFactoryBean.java:717)

at org.springframework.orm.hibernate3.AbstractSessionFactoryBean.afterPropertiesSet(AbstractSessionFactoryBean.java:211)

at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.invokeInitMethods(AbstractAutowireCapableBeanFactory.java:1477)

at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1417)

... 12 more

Caused by: org.hibernate.DuplicateMappingException: Duplicate class/entity mapping bbs.po.ThemeMessage

at org.hibernate.cfg.Configuration$MappingsImpl.addClass(Configuration.java:3121)

at org.hibernate.cfg.HbmBinder.bindRoot(HbmBinder.java:175)

at org.hibernate.cfg.Configuration$MetadataSourceQueue.processHbmXml(Configuration.java:3948)

 

这个错误实在spring创建sessionFactory的时候产生的，但是由于我的经验不足，会怀疑是spring的配置文件的错误，但是仔细看一下下面的一个错误：Duplicate class/entity mapping bbs.po.ThemeMessage。重复的定义了ThemeMessage类！所以豁然开朗了，hibernate的 hbm文件的配置问题。