spring3.1+JPA整合struts2.3出现的各种有关问题和错，其实主要还是jar包冲突

spring3.1+JPA整合struts2.3出现的各种问题和错，其实主要还是jar包冲突

缺commons-digester-2.0.jar
十一月 15, 2012 9:10:13 下午 org.apache.catalina.core.StandardContext listenerStart
严重: Error configuring application listener of class com.sun.faces.config.ConfigureListener
java.lang.NoClassDefFoundError: org/apache/commons/digester/RuleSet
	at java.lang.Class.getDeclaredConstructors0(Native Method)
	at java.lang.Class.privateGetDeclaredConstructors(Class.java:2404)
	at java.lang.Class.getConstructor0(Class.java:2714)
	at java.lang.Class.newInstance0(Class.java:343)
	at java.lang.Class.newInstance(Class.java:325)
	at org.apache.catalina.core.DefaultInstanceManager.newInstance(DefaultInstanceManager.java:125)
	at org.apache.catalina.core.StandardContext.listenerStart(StandardContext.java:4701)
	at org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:5260)
	at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:150)
	at org.apache.catalina.core.ContainerBase.addChildInternal(ContainerBase.java:866)
	at org.apache.catalina.core.ContainerBase.addChild(ContainerBase.java:842)
	at org.apache.catalina.core.StandardHost.addChild(StandardHost.java:615)
	at org.apache.catalina.startup.HostConfig.deployDirectory(HostConfig.java:1095)
	at org.apache.catalina.startup.HostConfig$DeployDirectory.run(HostConfig.java:1617)
	at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:471)
	at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:334)
	at java.util.concurrent.FutureTask.run(FutureTask.java:166)
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1110)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:603)
	at java.lang.Thread.run(Thread.java:722)
Caused by: java.lang.ClassNotFoundException: org.apache.commons.digester.RuleSet
	at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1688)
	at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1533)
	... 20 more
	
servlet-api-2.4.jar与Tomcat包冲突，移除。
	十一月 15, 2012 9:13:45 下午 org.apache.catalina.loader.WebappClassLoader validateJarFile
信息: validateJarFile(C:\apache-tomcat-7.0.23\webapps\eshop\WEB-INF\lib\servlet-api-2.4.jar) - jar not loaded. See Servlet Spec 2.3, section 9.7.2. Offending class: javax/servlet/Servlet.class

ejb3-persistence.jar冲突，移除
Caused by: java.lang.NoSuchMethodError: javax.persistence.spi.PersistenceUnitInfo.getValidationMode()Ljavax/persistence/ValidationMode;
	at org.hibernate.ejb.Ejb3Configuration.configure(Ejb3Configuration.java:633)
	at org.hibernate.ejb.HibernatePersistence.createContainerEntityManagerFactory(HibernatePersistence.java:73)
	at org.springframework.orm.jpa.LocalContainerEntityManagerFactoryBean.createNativeEntityManagerFactory(LocalContainerEntityManagerFactoryBean.java:268)
	at org.springframework.orm.jpa.AbstractEntityManagerFactoryBean.afterPropertiesSet(AbstractEntityManagerFactoryBean.java:310)
	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.invokeInitMethods(AbstractAutowireCapableBeanFactory.java:1514)
	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1452)
	... 40 more
	缺commons-beanutils-1.8.0.jar
	Caused by: java.lang.ClassNotFoundException: org.apache.commons.beanutils.MethodUtils
	at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1688)
	at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1533)
	... 33 more

我的异常网推荐解决方案：org.apache.catalina.loader.WebappClassLoader.loadClass,http://www..net/java-web/org.apache.catalina.loader.WebappClassLoader.loadClass.html