spring与struts2整合出现常见错误

错误信息 
严重: Exception starting filter struts2 
Unable to load configuration. - bean - jar:file:/F:/Struts2/Struts2/WebRoot/WEB-

INF/lib/struts2-core-2.1.2.jar!/struts-default.xml:46:178 
解决办法 
少jar包，添加 
commons-fileupload-1.2.1.jar 
commons-io-1.3.2.jar

错误信息 
org.springframework.beans.factory.BeanCreationException: Error creating bean with name

'sessionFactory' defined in ServletContext resource [/WEB-

INF/classes/applicationContext.xml]: Invocation of init method failed; nested exception is

java.lang.NoSuchMethodError: org.objectweb.asm.ClassVisitor.visit

(IILjava/lang/String;Ljava/lang/String;[Ljava/lang/String;Ljava/lang/String;)V 
解决办法： 
Spring中的asm-xxx.jar 和 Hibernate中的 asm.jar 冲突，移除 spring aop 中的 asm-xxx.jar 或者

出现 action 为null 时移除 spring aop

错误信息 
Exception starting filter struts2 
Cannot locate the chosen ObjectFactory implementation: The

com.opensymphony.xwork2.ObjectFactory implementation class - [unknown location] 
解决办法： 
少jar包，添加struts2-spring-plugin-2.0.14.jar 
struts.xml中，加上一句话 
<constant name="struts.objectFactory" value="spring"/>

错误信息 
严重: Exception starting filter struts2 
Unable to load configuration. - bean - jar:file:/F:/Struts2/Struts2/WebRoot/WEB-

INF/lib/struts2-core-2.1.2.jar!/struts-default.xml:46:178 
解决办法 
少jar包，添加 
commons-fileupload-1.2.1.jar 
commons-io-1.3.2.jar

错误信息 
org.springframework.beans.factory.BeanCreationException: Error creating bean with name

'sessionFactory' defined in ServletContext resource [/WEB-

INF/classes/applicationContext.xml]: Invocation of init method failed; nested exception is

java.lang.NoSuchMethodError: org.objectweb.asm.ClassVisitor.visit

(IILjava/lang/String;Ljava/lang/String;[Ljava/lang/String;Ljava/lang/String;)V 
解决办法： 
Spring中的asm-xxx.jar 和 Hibernate中的 asm.jar 冲突，移除 spring aop 中的 asm-xxx.jar 或者

出现 action 为null 时移除 spring aop

错误信息 
Exception starting filter struts2 
Cannot locate the chosen ObjectFactory implementation: The

com.opensymphony.xwork2.ObjectFactory implementation class - [unknown location] 
解决办法： 
少jar包，添加struts2-spring-plugin-2.0.14.jar 
struts.xml中，加上一句话 
<constant name="struts.objectFactory" value="spring"/>

错误信息

严重: Exception starting filter struts2 
Unable to load configuration. - [unknown location] 
at com.opensymphony.xwork2.config.ConfigurationManager.getConfiguration(ConfigurationManager.java:58) 
at org.apache.struts2.dispatcher.Dispatcher.init_PreloadConfiguration(Dispatcher.java:360) 
at org.apache.struts2.dispatcher.Dispatcher.init(Dispatcher.java:403) 
at org.apache.struts2.dispatcher.FilterDispatcher.init(FilterDispatcher.java:190) 
at org.apache.catalina.core.ApplicationFilterConfig.getFilter(ApplicationFilterConfig.java:275) 
at org.apache.catalina.core.ApplicationFilterConfig.setFilterDef(ApplicationFilterConfig.java:397) 
at org.apache.catalina.core.ApplicationFilterConfig.<init>(ApplicationFilterConfig.java:108) 
at org.apache.catalina.core.StandardContext.filterStart(StandardContext.java:3709) 
at org.apache.catalina.core.StandardContext.start(StandardContext.java:4356) 
at org.apache.catalina.core.ContainerBase.addChildInternal(ContainerBase.java:791) 
at org.apache.catalina.core.ContainerBase.addChild(ContainerBase.java:771) 
at org.apache.catalina.core.StandardHost.addChild(StandardHost.java:525) 
at org.apache.catalina.startup.HostConfig.deployDirectory(HostConfig.java:924) 
at org.apache.catalina.startup.HostConfig.deployDirectories(HostConfig.java:887) 
at org.apache.catalina.startup.HostConfig.deployApps(HostConfig.java:492) 
at org.apache.catalina.startup.HostConfig.start(HostConfig.java:1147) 
at org.apache.catalina.startup.HostConfig.lifecycleEvent(HostConfig.java:311) 
at org.apache.catalina.util.LifecycleSupport.fireLifecycleEvent(LifecycleSupport.java:117) 
at org.apache.catalina.core.ContainerBase.start(ContainerBase.java:1053) 
at org.apache.catalina.core.StandardHost.start(StandardHost.java:719) 
at org.apache.catalina.core.ContainerBase.start(ContainerBase.java:1045) 
at org.apache.catalina.core.StandardEngine.start(StandardEngine.java:443) 
at org.apache.catalina.core.StandardService.start(StandardService.java:516) 
at org.apache.catalina.core.StandardServer.start(StandardServer.java:710) 
at org.apache.catalina.startup.Catalina.start(Catalina.java:578) 
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) 
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39) 
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25) 
at java.lang.reflect.Method.invoke(Method.java:597) 
at org.apache.catalina.startup.Bootstrap.start(Bootstrap.java:288) 
at org.apache.catalina.startup.Bootstrap.main(Bootstrap.java:413) 
Caused by: Caught exception while loading file struts-default.xml - [unknown location] 
at com.opensymphony.xwork2.config.providers.XmlConfigurationProvider.loadConfigurationFiles(XmlConfigurationProvider.java:894)
at com.opensymphony.xwork2.config.providers.XmlConfigurationProvider.loadDocuments(XmlConfigurationProvider.java:144)
at com.opensymphony.xwork2.config.providers.XmlConfigurationProvider.init(XmlConfigurationProvider.java:111) 
at com.opensymphony.xwork2.config.impl.DefaultConfiguration.reloadContainer(DefaultConfiguration.java:164)
at com.opensymphony.xwork2.config.ConfigurationManager.getConfiguration(ConfigurationManager.java:55) 
... 30 more 
Caused by: java.lang.ClassCastException: org.apache.xerces.parsers.XML11Configuration cannot be cast to org.apache.xerces.xni.parser.XMLParserConfiguration 
at org.apache.xerces.parsers.DOMParser.<init>(Unknown Source) 
at org.apache.xerces.parsers.DOMParser.<init>(Unknown Source) 
at org.apache.xerces.jaxp.DocumentBuilderImpl.<init>(Unknown Source) 
at org.apache.xerces.jaxp.DocumentBuilderFactoryImpl.newDocumentBuilder(Unknown Source) 
at com.sun.org.apache.xalan.internal.xsltc.trax.SAX2DOM.<init>(SAX2DOM.java:69) 
at com.sun.org.apache.xalan.internal.xsltc.runtime.output.TransletOutputHandlerFactory.getSerializationHandler(TransletOutputHandlerFactory.java:187)
at com.sun.org.apache.xalan.internal.xsltc.trax.TransformerImpl.getOutputHandler(TransformerImpl.java:392) 
at com.sun.org.apache.xalan.internal.xsltc.trax.TransformerHandlerImpl.setResult(TransformerHandlerImpl.java:137)
at com.opensymphony.xwork2.util.DomHelper$DOMBuilder.setup(DomHelper.java:205) 
at com.opensymphony.xwork2.util.DomHelper$DOMBuilder.<init>(DomHelper.java:190) 
at com.opensymphony.xwork2.util.DomHelper$DOMBuilder.<init>(DomHelper.java:181) 
at com.opensymphony.xwork2.util.DomHelper$DOMBuilder.<init>(DomHelper.java:167) 
at com.opensymphony.xwork2.util.DomHelper.parse(DomHelper.java:107) 
at com.opensymphony.xwork2.config.providers.XmlConfigurationProvider.loadConfigurationFiles(XmlConfigurationProvider.java:885)
... 34 more 
经过在网上查找原因，说是xerces-2.6.2.jar与hibernate3.jar里面出现冲突，于是删除xerces-2.6.2.jar再重新启动tomcat6问题解决，程序正常运行

错误如下：
信息: Loading Spring root WebApplicationContext
AbandonedObjectPool is used (org.apache.commons.dbcp.AbandonedObjectPool@17447c5)
   LogAbandoned: false
   RemoveAbandoned: true
   RemoveAbandonedTimeout: 60
2009-2-19 9:47:43 org.apache.catalina.core.StandardContext filterStart
严重: Exception starting filter struts2
java.lang.NullPointerException
at com.opensymphony.xwork2.util.FileManager$FileRevision.needsReloading(FileManager.java:209)
at com.opensymphony.xwork2.util.FileManager.fileNeedsReloading(FileManager.java:60)
at com.opensymphony.xwork2.config.providers.XmlConfigurationProvider.needsReload(XmlConfigurationProvider.java:325)
at org.apache.struts2.config.StrutsXmlConfigurationProvider.needsReload(StrutsXmlConfigurationProvider.java:168)
at com.opensymphony.xwork2.config.ConfigurationManager.conditionalReload(ConfigurationManager.java:220)
at com.opensymphony.xwork2.config.ConfigurationManager.getConfiguration(ConfigurationManager.java:61)
at org.apache.struts2.dispatcher.Dispatcher.getContainer(Dispatcher.java:774)
at org.apache.struts2.dispatcher.FilterDispatcher.init(FilterDispatcher.java:191)
at org.apache.catalina.core.ApplicationFilterConfig.getFilter(ApplicationFilterConfig.java:275)
at org.apache.catalina.core.ApplicationFilterConfig.setFilterDef(ApplicationFilterConfig.java:397)
at org.apache.catalina.core.ApplicationFilterConfig.<init>(ApplicationFilterConfig.java:108)
at org.apache.catalina.core.StandardContext.filterStart(StandardContext.java:3709)
at org.apache.catalina.core.StandardContext.start(StandardContext.java:4356)
at org.apache.catalina.core.ContainerBase.addChildInternal(ContainerBase.java:791)
at org.apache.catalina.core.ContainerBase.addChild(ContainerBase.java:771)
at org.apache.catalina.core.StandardHost.addChild(StandardHost.java:525)
at org.apache.catalina.startup.HostConfig.deployDirectory(HostConfig.java:924)
at org.apache.catalina.startup.HostConfig.deployDirectories(HostConfig.java:887)
at org.apache.catalina.startup.HostConfig.deployApps(HostConfig.java:492)
at org.apache.catalina.startup.HostConfig.start(HostConfig.java:1147)
at org.apache.catalina.startup.HostConfig.lifecycleEvent(HostConfig.java:311)
at org.apache.catalina.util.LifecycleSupport.fireLifecycleEvent(LifecycleSupport.java:117)
at org.apache.catalina.core.ContainerBase.start(ContainerBase.java:1053)
at org.apache.catalina.core.StandardHost.start(StandardHost.java:719)
at org.apache.catalina.core.ContainerBase.start(ContainerBase.java:1045)
at org.apache.catalina.core.StandardEngine.start(StandardEngine.java:443)
at org.apache.catalina.core.StandardService.start(StandardService.java:516)
at org.apache.catalina.core.StandardServer.start(StandardServer.java:710)
at org.apache.catalina.startup.Catalina.start(Catalina.java:578)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:597)
at org.apache.catalina.startup.Bootstrap.start(Bootstrap.java:288)
at org.apache.catalina.startup.Bootstrap.main(Bootstrap.java:413)
2009-2-19 9:47:43 org.apache.catalina.core.StandardContext start
严重: Error filterStart

在web.xml中的配置
<filter>
<filter-name>struts2</filter-name>
<filter-class>
org.apache.struts2.dispatcher.FilterDispatcher
</filter-class>
</filter>
<filter-mapping>
<filter-name>struts2</filter-name>
<url-pattern>/*</url-pattern>
</filter-mapping>

问题已经解决！！
在struts。xml的配置文件里
 <constant name="struts.devMode" value="false" />    
原来是TRUE 改成FALSE就好了