Caused by: java.lang.ClassNotFoundException: javassist.util.proxy.MethodFilter

Exception in thread "main" java.lang.ExceptionInInitializerError
at biz.UserBiz.getUser(UserBiz.java:17)
at test.Test.main(Test.java:9)
Caused by: java.lang.RuntimeException: hibernate初始化失败
at Utils.HibernateSessionFactory.(HibernateSessionFactory.java:26)
... 2 more
Caused by: org.hibernate.HibernateException: Unable to instantiate default tuplizer [org.hibernate.tuple.entity.PojoEntityTuplizer]
at org.hibernate.tuple.entity.EntityTuplizerFactory.constructTuplizer(EntityTuplizerFactory.java:108)
at org.hibernate.tuple.entity.EntityTuplizerFactory.constructDefaultTuplizer(EntityTuplizerFactory.java:133)
at org.hibernate.tuple.entity.EntityEntityModeToTuplizerMapping.(EntityEntityModeToTuplizerMapping.java:80)
at org.hibernate.tuple.entity.EntityMetamodel.(EntityMetamodel.java:322)
at org.hibernate.persister.entity.AbstractEntityPersister.(AbstractEntityPersister.java:485)
at org.hibernate.persister.entity.SingleTableEntityPersister.(SingleTableEntityPersister.java:133)
at org.hibernate.persister.PersisterFactory.createClassPersister(PersisterFactory.java:84)
at org.hibernate.impl.SessionFactoryImpl.(SessionFactoryImpl.java:286)
at org.hibernate.cfg.Configuration.buildSessionFactory(Configuration.java:1872)
at Utils.HibernateSessionFactory.(HibernateSessionFactory.java:24)
... 2 more
Caused by: java.lang.reflect.InvocationTargetException
at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:62)
at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
at java.lang.reflect.Constructor.newInstance(Constructor.java:423)
at org.hibernate.tuple.entity.EntityTuplizerFactory.constructTuplizer(EntityTuplizerFactory.java:105)
... 11 more
Caused by: java.lang.NoClassDefFoundError: javassist/util/proxy/MethodFilter
at org.hibernate.bytecode.javassist.BytecodeProviderImpl.getProxyFactoryFactory(BytecodeProviderImpl.java:49)
at org.hibernate.tuple.entity.PojoEntityTuplizer.buildProxyFactoryInternal(PojoEntityTuplizer.java:205)
at org.hibernate.tuple.entity.PojoEntityTuplizer.buildProxyFactory(PojoEntityTuplizer.java:183)
at org.hibernate.tuple.entity.AbstractEntityTuplizer.(AbstractEntityTuplizer.java:167)
at org.hibernate.tuple.entity.PojoEntityTuplizer.(PojoEntityTuplizer.java:77)
... 16 more
Caused by: java.lang.ClassNotFoundException: javassist.util.proxy.MethodFilter
at java.net.URLClassLoader.findClass(URLClassLoader.java:381)
at java.lang.ClassLoader.loadClass(ClassLoader.java:424)
at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:335)
at java.lang.ClassLoader.loadClass(ClassLoader.java:357)

... 21 more

在使用maven及eclipse使用hibernate框架时，出现Exception in thread "main" java.lang.ExceptionInInitializerError异常

最后的caused by是ava.lang.ClassNotFoundException: javassist.util.proxy.MethodFilter

是在pom.xml没有配置javassist 的jar包

在pom.xml配置一段javassist包后就可以正常使用

 
    javassist  
    javassist  
    3.8.1.GA