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java全程实录问题
发表在Java图书答疑 2010-06-23
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第七章：电子商城后台不能添加商品种类（大类和小类）都不能添加。要怎么更改。

HTTP Status 500 - 

--------------------------------------------------------------------------------

type Exception report

message 

description The server encountered an internal error () that prevented it from fulfilling this request.

exception 

org.springframework.web.util.NestedServletException: Request processing failed; nested exception is org.hibernate.AssertionFailure: null id in com.lzw.model.TbSuperType entry (don't flush the Session after an exception occurs)
org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:408)
org.springframework.web.servlet.FrameworkServlet.doPost(FrameworkServlet.java:360)
javax.servlet.http.HttpServlet.service(HttpServlet.java:637)
javax.servlet.http.HttpServlet.service(HttpServlet.java:717)


root cause 

org.hibernate.AssertionFailure: null id in com.lzw.model.TbSuperType entry (don't flush the Session after an exception occurs)
org.hibernate.event.def.DefaultFlushEntityEventListener.checkId(DefaultFlushEntityEventListener.java:55)
org.hibernate.event.def.DefaultFlushEntityEventListener.getValues(DefaultFlushEntityEventListener.java:164)
org.hibernate.event.def.DefaultFlushEntityEventListener.onFlushEntity(DefaultFlushEntityEventListener.java:120)
org.hibernate.event.def.AbstractFlushingEventListener.flushEntities(AbstractFlushingEventListener.java:196)
org.hibernate.event.def.AbstractFlushingEventListener.flushEverythingToExecutions(AbstractFlushingEventListener.java:76)
org.hibernate.event.def.DefaultFlushEventListener.onFlush(DefaultFlushEventListener.java:26)
org.hibernate.impl.SessionImpl.flush(SessionImpl.java:1000)
org.hibernate.impl.SessionImpl.managedFlush(SessionImpl.java:338)
org.hibernate.transaction.JDBCTransaction.commit(JDBCTransaction.java:106)
org.springframework.orm.hibernate3.HibernateTransactionManager.doCommit(HibernateTransactionManager.java:561)
org.springframework.transaction.support.AbstractPlatformTransactionManager.processCommit(AbstractPlatformTransactionManager.java:611)
org.springframework.transaction.support.AbstractPlatformTransactionManager.commit(AbstractPlatformTransactionManager.java:581)
org.springframework.transaction.interceptor.TransactionAspectSupport.commitTransactionAfterReturning(TransactionAspectSupport.java:307)
org.springframework.transaction.interceptor.TransactionInterceptor.invoke(TransactionInterceptor.java:117)
org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:176)
org.springframework.aop.framework.Cglib2AopProxy$DynamicAdvisedInterceptor.intercept(Cglib2AopProxy.java:615)
com.lzw.dao.Dao$$EnhancerByCGLIB$$a546a1b9.insertObject(<generated>)
com.lzw.manager.SuperTypeAddController.onSubmit(SuperTypeAddController.java:26)
org.springframework.web.servlet.mvc.SimpleFormController.onSubmit(SimpleFormController.java:408)
org.springframework.web.servlet.mvc.SimpleFormController.onSubmit(SimpleFormController.java:380)
org.springframework.web.servlet.mvc.SimpleFormController.processFormSubmission(SimpleFormController.java:267)
org.springframework.web.servlet.mvc.AbstractFormController.handleRequestInternal(AbstractFormController.java:250)
com.lzw.manager.SuperTypeAddController.handleRequestInternal(SuperTypeAddController.java:31)
org.springframework.web.servlet.mvc.AbstractController.handleRequest(AbstractController.java:153)
org.springframework.web.servlet.mvc.SimpleControllerHandlerAdapter.handle(SimpleControllerHandlerAdapter.java:45)
org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:820)
org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:755)
org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:396)
org.springframework.web.servlet.FrameworkServlet.doPost(FrameworkServlet.java:360)
javax.servlet.http.HttpServlet.service(HttpServlet.java:637)
javax.servlet.http.HttpServlet.service(HttpServlet.java:717)


note The full stack trace of the root cause is available in the Apache Tomcat/6.0.20 logs.


--------------------------------------------------------------------------------

Apache Tomcat/6.0.20
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小小邪
学分：0 LV1
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2010-06-23
沙发
1.请确认数据库从光盘复制回来是否去掉了只读属性。
2.Hibernate类库的版本是否3.0
3.请重新编译一次程序
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2010-06-24
板凳
我去掉了数据库的只读属性。Hibernate类库也是3.0版本。重新编译过，还是这种情况。

里面添加公告，添加大类，添加小类都会出现这种情况。添加产品是正确的，但图片显示不出来，在修改时也会出现下面的问题。

HTTP Status 500 - 

--------------------------------------------------------------------------------

type Exception report

message 

description The server encountered an internal error () that prevented it from fulfilling this request.

exception 

org.springframework.web.util.NestedServletException: Request processing failed; nested exception is org.springframework.orm.hibernate3.HibernateSystemException: More than one row with the given identifier was found: 34, for class: com.lzw.model.TbSubType; nested exception is org.hibernate.HibernateException: More than one row with the given identifier was found: 34, for class: com.lzw.model.TbSubType
org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:408)
org.springframework.web.servlet.FrameworkServlet.doGet(FrameworkServlet.java:350)
javax.servlet.http.HttpServlet.service(HttpServlet.java:617)
javax.servlet.http.HttpServlet.service(HttpServlet.java:717)


root cause 

org.springframework.orm.hibernate3.HibernateSystemException: More than one row with the given identifier was found: 34, for class: com.lzw.model.TbSubType; nested exception is org.hibernate.HibernateException: More than one row with the given identifier was found: 34, for class: com.lzw.model.TbSubType
org.springframework.orm.hibernate3.SessionFactoryUtils.convertHibernateAccessException(SessionFactoryUtils.java:670)
org.springframework.orm.hibernate3.HibernateAccessor.convertHibernateAccessException(HibernateAccessor.java:408)
org.springframework.orm.hibernate3.HibernateTemplate.execute(HibernateTemplate.java:367)
org.springframework.orm.hibernate3.HibernateTemplate.get(HibernateTemplate.java:454)
org.springframework.orm.hibernate3.HibernateTemplate.get(HibernateTemplate.java:448)
com.lzw.dao.Dao.getSubType(Dao.java:230)
com.lzw.dao.Dao$$FastClassByCGLIB$$c62259e4.invoke(<generated>)
net.sf.cglib.proxy.MethodProxy.invoke(MethodProxy.java:149)
org.springframework.aop.framework.Cglib2AopProxy$CglibMethodInvocation.invokeJoinpoint(Cglib2AopProxy.java:674)
org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:154)
org.springframework.transaction.interceptor.TransactionInterceptor.invoke(TransactionInterceptor.java:107)
org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:176)
org.springframework.aop.framework.Cglib2AopProxy$DynamicAdvisedInterceptor.intercept(Cglib2AopProxy.java:615)
com.lzw.dao.Dao$$EnhancerByCGLIB$$70bf30d9.getSubType(<generated>)
com.lzw.manager.GoodsModifyController.showForm(GoodsModifyController.java:40)
org.springframework.web.servlet.mvc.AbstractFormController.showNewForm(AbstractFormController.java:323)
org.springframework.web.servlet.mvc.AbstractFormController.handleRequestInternal(AbstractFormController.java:263)
com.lzw.manager.GoodsModifyController.handleRequestInternal(GoodsModifyController.java:50)
org.springframework.web.servlet.mvc.AbstractController.handleRequest(AbstractController.java:153)
org.springframework.web.servlet.mvc.SimpleControllerHandlerAdapter.handle(SimpleControllerHandlerAdapter.java:45)
org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:820)
org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:755)
org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:396)
org.springframework.web.servlet.FrameworkServlet.doGet(FrameworkServlet.java:350)
javax.servlet.http.HttpServlet.service(HttpServlet.java:617)
javax.servlet.http.HttpServlet.service(HttpServlet.java:717)


root cause 

org.hibernate.HibernateException: More than one row with the given identifier was found: 34, for class: com.lzw.model.TbSubType
org.hibernate.loader.entity.AbstractEntityLoader.load(AbstractEntityLoader.java:69)
org.hibernate.loader.entity.AbstractEntityLoader.load(AbstractEntityLoader.java:42)
org.hibernate.persister.entity.AbstractEntityPersister.load(AbstractEntityPersister.java:3049)
org.hibernate.event.def.DefaultLoadEventListener.loadFromDatasource(DefaultLoadEventListener.java:399)
org.hibernate.event.def.DefaultLoadEventListener.doLoad(DefaultLoadEventListener.java:375)
org.hibernate.event.def.DefaultLoadEventListener.load(DefaultLoadEventListener.java:139)
org.hibernate.event.def.DefaultLoadEventListener.proxyOrLoad(DefaultLoadEventListener.java:195)
org.hibernate.event.def.DefaultLoadEventListener.onLoad(DefaultLoadEventListener.java:103)
org.hibernate.impl.SessionImpl.fireLoad(SessionImpl.java:878)
org.hibernate.impl.SessionImpl.get(SessionImpl.java:815)
org.hibernate.impl.SessionImpl.get(SessionImpl.java:808)
org.springframework.orm.hibernate3.HibernateTemplate$1.doInHibernate(HibernateTemplate.java:460)
org.springframework.orm.hibernate3.HibernateTemplate.execute(HibernateTemplate.java:362)
org.springframework.orm.hibernate3.HibernateTemplate.get(HibernateTemplate.java:454)
org.springframework.orm.hibernate3.HibernateTemplate.get(HibernateTemplate.java:448)
com.lzw.dao.Dao.getSubType(Dao.java:230)
com.lzw.dao.Dao$$FastClassByCGLIB$$c62259e4.invoke(<generated>)
net.sf.cglib.proxy.MethodProxy.invoke(MethodProxy.java:149)
org.springframework.aop.framework.Cglib2AopProxy$CglibMethodInvocation.invokeJoinpoint(Cglib2AopProxy.java:674)
org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:154)
org.springframework.transaction.interceptor.TransactionInterceptor.invoke(TransactionInterceptor.java:107)
org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:176)
org.springframework.aop.framework.Cglib2AopProxy$DynamicAdvisedInterceptor.intercept(Cglib2AopProxy.java:615)
com.lzw.dao.Dao$$EnhancerByCGLIB$$70bf30d9.getSubType(<generated>)
com.lzw.manager.GoodsModifyController.showForm(GoodsModifyController.java:40)
org.springframework.web.servlet.mvc.AbstractFormController.showNewForm(AbstractFormController.java:323)
org.springframework.web.servlet.mvc.AbstractFormController.handleRequestInternal(AbstractFormController.java:263)
com.lzw.manager.GoodsModifyController.handleRequestInternal(GoodsModifyController.java:50)
org.springframework.web.servlet.mvc.AbstractController.handleRequest(AbstractController.java:153)
org.springframework.web.servlet.mvc.SimpleControllerHandlerAdapter.handle(SimpleControllerHandlerAdapter.java:45)
org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:820)
org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:755)
org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:396)
org.springframework.web.servlet.FrameworkServlet.doGet(FrameworkServlet.java:350)
javax.servlet.http.HttpServlet.service(HttpServlet.java:617)
javax.servlet.http.HttpServlet.service(HttpServlet.java:717)


note The full stack trace of the root cause is available in the Apache Tomcat/6.0.20 logs.

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东北虎
学分：0 LV1
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2010-06-25
地板
出现上述问题就服务器产生内部错误，请检查Web服务器是否有问题。
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