Exception in thread "main" java.lang.NoClassDefFoundError: javax/transaction/Synchronization at org.hibernate.impl.SessionImpl.(SessionImpl.java:213) at org.hibernate.impl.SessionFactoryImpl.openSession(SessionFactoryImpl.java:473) at org.hibernate.impl.SessionFactoryImpl.openSession(SessionFactoryImpl.java:497) at org.hibernate.impl.SessionFactoryImpl.openSession(SessionFactoryImpl.java:505) at org.sunx.common.HibernateUtil.currentSession(HibernateUtil.java:30) at org.sunx.common.HibernateUtil.main(HibernateUtil.java:45) Caused by: java.lang.ClassNotFoundException: javax.transaction.Synchronization at java.net.URLClassLoader$1.run(URLClassLoader.java:200) at java.security.AccessController.doPrivileged(Native Method) at java.net.URLClassLoader.findClass(URLClassLoader.java:188) at java.lang.ClassLoader.loadClass(ClassLoader.java:307) at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:301) at java.lang.ClassLoader.loadClass(ClassLoader.java:252) at java.lang.ClassLoader.loadClassInternassLoader.java:320) ... 6 more Java Result: 1
错误原因是： java.lang.NoClassDefFoundError: javax/transaction/Synchronization 表明是少了一个类,该类在包jta.jar里应该有，在classpath中加上该包就好。
