maven中hibernate-core和struts2-core中javassist解决办法(cannot be cast to javassist.util.proxy.Proxy)

今天写基于maven的ssh项目的时候出现

org.springframework.scheduling.quartz.JobMethodInvocationFailedException: Invocation of method 'execute' on target class [class cn.lichenyang.dms.web.action.MailJob] failed; nested exception is org.springframework.orm.hibernate5.HibernateSystemException: HHH000142: Bytecode enhancement failed: cn.lichenyang.dms.entity.BcStaff; nested exception is org.hibernate.HibernateException: HHH000142: Bytecode enhancement failed: cn.lichenyang.dms.entity.BcStaffat org.springframework.scheduling.quartz.MethodInvokingJobDetailFactoryBean$MethodInvokingJob.executeInternal(MethodInvokingJobDetailFactoryBean.java:276)at org.springframework.scheduling.quartz.QuartzJobBean.execute(QuartzJobBean.java:75)at org.quartz.core.JobRunShell.run(JobRunShell.java:202)at org.quartz.simpl.SimpleThreadPool$WorkerThread.run(SimpleThreadPool.java:573)
Caused by: org.springframework.orm.hibernate5.HibernateSystemException: HHH000142: Bytecode enhancement failed: cn.lichenyang.dms.entity.BcStaff; nested exception is org.hibernate.HibernateException: HHH000142: Bytecode enhancement failed: cn.lichenyang.dms.entity.BcStaffat org.springframework.orm.hibernate5.SessionFactoryUtils.convertHibernateAccessException(SessionFactoryUtils.java:302)at org.springframework.orm.hibernate5.HibernateTemplate.doExecute(HibernateTemplate.java:384)at org.springframework.orm.hibernate5.HibernateTemplate.executeWithNativeSession(HibernateTemplate.java:347)at org.springframework.orm.hibernate5.HibernateTemplate.findByExample(HibernateTemplate.java:999)at org.springframework.orm.hibernate5.HibernateTemplate.findByExample(HibernateTemplate.java:979)at cn.lichenyang.dms.dao.impl.BaseDaoImpl.queryByExample(BaseDaoImpl.java:79)at cn.lichenyang.dms.service.impl.QpWorkbillServiceImpl.queryByExample(QpWorkbillServiceImpl.java:28)at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)at java.lang.reflect.Method.invoke(Method.java:497)at org.springframework.aop.support.AopUtils.invokeJoinpointUsingReflection(AopUtils.java:338)at org.springframework.aop.framework.ReflectiveMethodInvocation.invokeJoinpoint(ReflectiveMethodInvocation.java:197)at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:163)at com.alibaba.druid.support.spring.stat.DruidStatInterceptor.invoke(DruidStatInterceptor.java:72)at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:185)at org.springframework.transaction.interceptor.TransactionAspectSupport.invokeWithinTransaction(TransactionAspectSupport.java:294)at org.springframework.transaction.interceptor.TransactionInterceptor.invoke(TransactionInterceptor.java:98)at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:185)at org.springframework.aop.interceptor.ExposeInvocationInterceptor.invoke(ExposeInvocationInterceptor.java:92)at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:185)at org.springframework.aop.framework.JdkDynamicAopProxy.invoke(JdkDynamicAopProxy.java:212)at com.sun.proxy.$Proxy66.queryByExample(Unknown Source)at cn.lichenyang.dms.web.action.MailJob.execute(MailJob.java:63)at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)at java.lang.reflect.Method.invoke(Method.java:497)at org.springframework.util.MethodInvoker.invoke(MethodInvoker.java:280)at org.springframework.scheduling.quartz.MethodInvokingJobDetailFactoryBean$MethodInvokingJob.executeInternal(MethodInvokingJobDetailFactoryBean.java:267)... 3 more
Caused by: org.hibernate.HibernateException: HHH000142: Bytecode enhancement failed: cn.lichenyang.dms.entity.BcStaffat org.hibernate.proxy.pojo.javassist.JavassistProxyFactory.getProxy(JavassistProxyFactory.java:133)at org.hibernate.tuple.entity.AbstractEntityTuplizer.createProxy(AbstractEntityTuplizer.java:761)at org.hibernate.persister.entity.AbstractEntityPersister.createProxy(AbstractEntityPersister.java:4595)at org.hibernate.event.internal.DefaultLoadEventListener.createProxyIfNecessary(DefaultLoadEventListener.java:359)at org.hibernate.event.internal.DefaultLoadEventListener.proxyOrLoad(DefaultLoadEventListener.java:274)at org.hibernate.event.internal.DefaultLoadEventListener.doOnLoad(DefaultLoadEventListener.java:121)at org.hibernate.event.internal.DefaultLoadEventListener.onLoad(DefaultLoadEventListener.java:89)at org.hibernate.internal.SessionImpl.fireLoad(SessionImpl.java:1239)at org.hibernate.internal.SessionImpl.internalLoad(SessionImpl.java:1122)at org.hibernate.type.EntityType.resolveIdentifier(EntityType.java:646)at org.hibernate.type.EntityType.resolve(EntityType.java:431)at org.hibernate.engine.internal.TwoPhaseLoad.doInitializeEntity(TwoPhaseLoad.java:165)at org.hibernate.engine.internal.TwoPhaseLoad.initializeEntity(TwoPhaseLoad.java:125)at org.hibernate.loader.Loader.initializeEntitiesAndCollections(Loader.java:1152)at org.hibernate.loader.Loader.processResultSet(Loader.java:1011)at org.hibernate.loader.Loader.doQuery(Loader.java:949)at org.hibernate.loader.Loader.doQueryAndInitializeNonLazyCollections(Loader.java:341)at org.hibernate.loader.Loader.doList(Loader.java:2692)at org.hibernate.loader.Loader.doList(Loader.java:2675)at org.hibernate.loader.Loader.listIgnoreQueryCache(Loader.java:2507)at org.hibernate.loader.Loader.list(Loader.java:2502)at org.hibernate.loader.criteria.CriteriaLoader.list(CriteriaLoader.java:109)at org.hibernate.internal.SessionImpl.list(SessionImpl.java:1898)at org.hibernate.internal.CriteriaImpl.list(CriteriaImpl.java:370)at org.springframework.orm.hibernate5.HibernateTemplate.lambda$findByExample$35(HibernateTemplate.java:1010)at org.springframework.orm.hibernate5.HibernateTemplate.doExecute(HibernateTemplate.java:381)... 31 more
Caused by: java.lang.ClassCastException: cn.lichenyang.dms.entity.BcStaff_$$_javassist_11 cannot be cast to javassist.util.proxy.Proxyat org.hibernate.proxy.pojo.javassist.JavassistProxyFactory.getProxy(JavassistProxyFactory.java:126)... 56 more
ERROR [schedulerFactoryBean_Worker-1] - Job (DEFAULT.jobDetail threw an exception.
org.quartz.SchedulerException: Job threw an unhandled exception. [See nested exception: org.springframework.scheduling.quartz.JobMethodInvocationFailedException: Invocation of method 'execute' on target class [class cn.lichenyang.dms.web.action.MailJob] failed; nested exception is org.springframework.orm.hibernate5.HibernateSystemException: HHH000142: Bytecode enhancement failed: cn.lichenyang.dms.entity.BcStaff; nested exception is org.hibernate.HibernateException: HHH000142: Bytecode enhancement failed: cn.lichenyang.dms.entity.BcStaff]at org.quartz.core.JobRunShell.run(JobRunShell.java:213)at org.quartz.simpl.SimpleThreadPool$WorkerThread.run(SimpleThreadPool.java:573)
Caused by: org.springframework.scheduling.quartz.JobMethodInvocationFailedException: Invocation of method 'execute' on target class [class cn.lichenyang.dms.web.action.MailJob] failed; nested exception is org.springframework.orm.hibernate5.HibernateSystemException: HHH000142: Bytecode enhancement failed: cn.lichenyang.dms.entity.BcStaff; nested exception is org.hibernate.HibernateException: HHH000142: Bytecode enhancement failed: cn.lichenyang.dms.entity.BcStaffat org.springframework.scheduling.quartz.MethodInvokingJobDetailFactoryBean$MethodInvokingJob.executeInternal(MethodInvokingJobDetailFactoryBean.java:276)at org.springframework.scheduling.quartz.QuartzJobBean.execute(QuartzJobBean.java:75)at org.quartz.core.JobRunShell.run(JobRunShell.java:202)... 1 more
Caused by: org.springframework.orm.hibernate5.HibernateSystemException: HHH000142: Bytecode enhancement failed: cn.lichenyang.dms.entity.BcStaff; nested exception is org.hibernate.HibernateException: HHH000142: Bytecode enhancement failed: cn.lichenyang.dms.entity.BcStaffat org.springframework.orm.hibernate5.SessionFactoryUtils.convertHibernateAccessException(SessionFactoryUtils.java:302)at org.springframework.orm.hibernate5.HibernateTemplate.doExecute(HibernateTemplate.java:384)at org.springframework.orm.hibernate5.HibernateTemplate.executeWithNativeSession(HibernateTemplate.java:347)at org.springframework.orm.hibernate5.HibernateTemplate.findByExample(HibernateTemplate.java:999)at org.springframework.orm.hibernate5.HibernateTemplate.findByExample(HibernateTemplate.java:979)at cn.lichenyang.dms.dao.impl.BaseDaoImpl.queryByExample(BaseDaoImpl.java:79)at cn.lichenyang.dms.service.impl.QpWorkbillServiceImpl.queryByExample(QpWorkbillServiceImpl.java:28)at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)at java.lang.reflect.Method.invoke(Method.java:497)at org.springframework.aop.support.AopUtils.invokeJoinpointUsingReflection(AopUtils.java:338)at org.springframework.aop.framework.ReflectiveMethodInvocation.invokeJoinpoint(ReflectiveMethodInvocation.java:197)at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:163)at com.alibaba.druid.support.spring.stat.DruidStatInterceptor.invoke(DruidStatInterceptor.java:72)at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:185)at org.springframework.transaction.interceptor.TransactionAspectSupport.invokeWithinTransaction(TransactionAspectSupport.java:294)at org.springframework.transaction.interceptor.TransactionInterceptor.invoke(TransactionInterceptor.java:98)at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:185)at org.springframework.aop.interceptor.ExposeInvocationInterceptor.invoke(ExposeInvocationInterceptor.java:92)at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:185)at org.springframework.aop.framework.JdkDynamicAopProxy.invoke(JdkDynamicAopProxy.java:212)at com.sun.proxy.$Proxy66.queryByExample(Unknown Source)at cn.lichenyang.dms.web.action.MailJob.execute(MailJob.java:63)at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)at java.lang.reflect.Method.invoke(Method.java:497)at org.springframework.util.MethodInvoker.invoke(MethodInvoker.java:280)at org.springframework.scheduling.quartz.MethodInvokingJobDetailFactoryBean$MethodInvokingJob.executeInternal(MethodInvokingJobDetailFactoryBean.java:267)... 3 more
Caused by: org.hibernate.HibernateException: HHH000142: Bytecode enhancement failed: cn.lichenyang.dms.entity.BcStaffat org.hibernate.proxy.pojo.javassist.JavassistProxyFactory.getProxy(JavassistProxyFactory.java:133)at org.hibernate.tuple.entity.AbstractEntityTuplizer.createProxy(AbstractEntityTuplizer.java:761)at org.hibernate.persister.entity.AbstractEntityPersister.createProxy(AbstractEntityPersister.java:4595)at org.hibernate.event.internal.DefaultLoadEventListener.createProxyIfNecessary(DefaultLoadEventListener.java:359)at org.hibernate.event.internal.DefaultLoadEventListener.proxyOrLoad(DefaultLoadEventListener.java:274)at org.hibernate.event.internal.DefaultLoadEventListener.doOnLoad(DefaultLoadEventListener.java:121)at org.hibernate.event.internal.DefaultLoadEventListener.onLoad(DefaultLoadEventListener.java:89)at org.hibernate.internal.SessionImpl.fireLoad(SessionImpl.java:1239)at org.hibernate.internal.SessionImpl.internalLoad(SessionImpl.java:1122)at org.hibernate.type.EntityType.resolveIdentifier(EntityType.java:646)at org.hibernate.type.EntityType.resolve(EntityType.java:431)at org.hibernate.engine.internal.TwoPhaseLoad.doInitializeEntity(TwoPhaseLoad.java:165)at org.hibernate.engine.internal.TwoPhaseLoad.initializeEntity(TwoPhaseLoad.java:125)at org.hibernate.loader.Loader.initializeEntitiesAndCollections(Loader.java:1152)at org.hibernate.loader.Loader.processResultSet(Loader.java:1011)at org.hibernate.loader.Loader.doQuery(Loader.java:949)at org.hibernate.loader.Loader.doQueryAndInitializeNonLazyCollections(Loader.java:341)at org.hibernate.loader.Loader.doList(Loader.java:2692)at org.hibernate.loader.Loader.doList(Loader.java:2675)at org.hibernate.loader.Loader.listIgnoreQueryCache(Loader.java:2507)at org.hibernate.loader.Loader.list(Loader.java:2502)at org.hibernate.loader.criteria.CriteriaLoader.list(CriteriaLoader.java:109)at org.hibernate.internal.SessionImpl.list(SessionImpl.java:1898)at org.hibernate.internal.CriteriaImpl.list(CriteriaImpl.java:370)at org.springframework.orm.hibernate5.HibernateTemplate.lambda$findByExample$35(HibernateTemplate.java:1010)at org.springframework.orm.hibernate5.HibernateTemplate.doExecute(HibernateTemplate.java:381)... 31 more
Caused by: java.lang.ClassCastException: cn.lichenyang.dms.entity.BcStaff_$$_javassist_11 cannot be cast to javassist.util.proxy.Proxyat org.hibernate.proxy.pojo.javassist.JavassistProxyFactory.getProxy(JavassistProxyFactory.java:126)... 56 more

主要上网搜了：cn.lichenyang.dms.entity.BcStaff_$$_javassist_11 cannot be cast to javassist.util.proxy.Proxy

网上说的是struts2-core和hibernate-core中的2个javassist的包有冲突，具体的结解决办法是：

我是写定时发送邮件的时候出现这个问题的，我的功能方法写在action包的下面的，所以打开action中的pom文件

点击如图位置，会发现有2个版本的javassist包名

单击低版本的(一般都是struts2的版本低)会出现如下界面，右键点击会出现如下界面

点击鼠标所在位置之后，eclipse会自动在pom文件中不调用点击的那个包，更新maven再次运行就行了

大家也可以去Maven中jar版本冲突问题的解决查看

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maven中hibernate-core和struts2-core中javassist解决办法(cannot be cast to javassist.util.proxy.Proxy)

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