在applicationContext.xml文件中，配置了hibernate的相关信息，其中SessionFactory是这样的

<bean id="sessionFactory"class="org.springframework.orm.hibernate3.annotation.AnnotationSessionFactoryBean"><property name="dataSource"><ref bean="dataSource" /></property><property name="hibernateProperties"><props><prop key="hibernate.dialect">org.hibernate.dialect.Oracle9Dialect</prop></props></property><property name="packagesToScan"><list><value>cn.jbit.pb.tcjc034.shop.entity</value></list></property></bean>

但是如果是这样

<bean id="sessionFactory"class="org.springframework.orm.hibernate3.annotation.AnnotationSessionFactoryBean"><property name="dataSource"><ref bean="dataSource" /></property><property name="hibernateProperties"><props><prop key="hibernate.dialect">org.hibernate.dialect.Oracle9Dialect</prop></props></property><property name="packagesToScan"><list><value>cn.jbit.pb.tcjc034.shop.entity</value></list></property></bean>

就会找不到实体，异常信息如下：

    org.hibernate.MappingException: Unknown entity: cn.jbit.pb.tcjc034.shop.entity.Userat org.hibernate.impl.SessionFactoryImpl.getEntityPersister(SessionFactoryImpl.java:628)at org.hibernate.event.def.DefaultLoadEventListener.onLoad(DefaultLoadEventListener.java:91)at org.hibernate.impl.SessionImpl.fireLoad(SessionImpl.java:906)at org.hibernate.impl.SessionImpl.get(SessionImpl.java:843)at org.hibernate.impl.SessionImpl.get(SessionImpl.java:836)at cn.jbit.pb.tcjc034.tuzki.base.dao.impl.PageBaseDaoImpl.queryEntityById(PageBaseDaoImpl.java:42)at cn.jbit.pb.tcjc034.shop.user.biz.impl.UserBizImpl.queryUserById(UserBizImpl.java:40)at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)at java.lang.reflect.Method.invoke(Method.java:597)at org.springframework.aop.support.AopUtils.invokeJoinpointUsingReflection(AopUtils.java:307)at org.springframework.aop.framework.ReflectiveMethodInvocation.invokeJoinpoint(ReflectiveMethodInvocation.java:182)at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:149)at org.springframework.transaction.interceptor.TransactionInterceptor.invoke(TransactionInterceptor.java:106)at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:171)at org.springframework.aop.interceptor.ExposeInvocationInterceptor.invoke(ExposeInvocationInterceptor.java:89)at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:171)at org.springframework.aop.framework.JdkDynamicAopProxy.invoke(JdkDynamicAopProxy.java:204)at com.sun.proxy.$Proxy7.queryUserById(Unknown Source)at cn.jbit.pb.tcjc034.shop.test.UserTest.test(UserTest.java:22)at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)at java.lang.reflect.Method.invoke(Method.java:597)at org.junit.runners.model.FrameworkMethod$1.runReflectiveCall(FrameworkMethod.java:44)at org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:15)at org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:41)at org.junit.internal.runners.statements.InvokeMethod.evaluate(InvokeMethod.java:20)at org.junit.internal.runners.statements.RunBefores.evaluate(RunBefores.java:28)at org.junit.internal.runners.statements.RunAfters.evaluate(RunAfters.java:31)at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:73)at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:46)at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:180)at org.junit.runners.ParentRunner.access$000(ParentRunner.java:41)at org.junit.runners.ParentRunner$1.evaluate(ParentRunner.java:173)at org.junit.internal.runners.statements.RunBefores.evaluate(RunBefores.java:28)at org.junit.internal.runners.statements.RunAfters.evaluate(RunAfters.java:31)at org.junit.runners.ParentRunner.run(ParentRunner.java:220)at org.eclipse.jdt.internal.junit4.runner.JUnit4TestReference.run(JUnit4TestReference.java:46)at org.eclipse.jdt.internal.junit.runner.TestExecution.run(TestExecution.java:38)at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:467)at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:683)at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.run(RemoteTestRunner.java:390)at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.main(RemoteTestRunner.java:197)

郁闷啊。。。。。