SPring Hibernate 整合学习开发出现的错误

错误之前在干什么？

     在测试使用Hibernate框架的Dao组件的实现类，出现的错误！配置都正确，但是就是有错误！

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

log4j:WARN Please initialize the log4j system properly.

十一月 02, 2017 10:45:33 上午 org.hibernate.cfg.Environment <clinit>

信息: Hibernate 3.3.2.GA

十一月 02, 2017 10:45:33 上午 org.hibernate.cfg.Environment <clinit>

信息: hibernate.properties not found

十一月 02, 2017 10:45:33 上午 org.hibernate.cfg.Environment buildBytecodeProvider

信息: Bytecode provider name : javassist

十一月 02, 2017 10:45:33 上午 org.hibernate.cfg.Environment <clinit>

信息: using JDK 1.4 java.sql.Timestamp handling

十一月 02, 2017 10:45:33 上午 org.hibernate.cfg.Configuration configure

信息: configuring from url: file:/C:/Users/Administrator/Workspaces/MyEclipse%20Professional%202014/Spring02_2/WebRoot/WEB-INF/classes/hibernate.cfg.xml

十一月 02, 2017 10:45:33 上午 org.hibernate.cfg.Configuration addResource

信息: Reading mappings from resource : layers/domain.hbm.xml

Exception in thread "main" 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.MappingNotFoundException:
resource: layers/domain.hbm.xml not found

    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 layers.test.testUserdao.main(testUserdao.java:12)

Caused by: org.hibernate.MappingNotFoundException: resource: layers/domain.hbm.xml not found

    at org.hibernate.cfg.Configuration.addResource(Configuration.java:610)

    at org.hibernate.cfg.Configuration.parseMappingElement(Configuration.java:1635)

    at org.hibernate.cfg.Configuration.parseSessionFactory(Configuration.java:1603)

    at org.hibernate.cfg.Configuration.doConfigure(Configuration.java:1582)

    at org.hibernate.cfg.Configuration.doConfigure(Configuration.java:1556)

    at org.hibernate.cfg.Configuration.configure(Configuration.java:1491)

    at org.springframework.orm.hibernate3.LocalSessionFactoryBean.buildSessionFactory(LocalSessionFactoryBean.java:642)

    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

错误原因是找不到 layers/domain.hbm.xml 资源

解决:原因是自己不知道在反向工程的时候，自己的包写错了，然后改了一下，但是框架给我在/Spring02_2/src/hibernate.cfg.xml的配置文件中自动生成了

<mapping resource="layers/domain.hbm.xml" />，实际上是我写错生成的，实际应该是

<mapping resource="layers/domain/User.hbm.xml" />  生成了前后这两条，把前面的那条删除就好了

在哪里跌倒，在哪里立个flag，大家请谨慎绕过！

其他错误请自行百度