struts2 奇怪的问题 ? 不知道大家碰到过否？ 求助！

[maodie007]

我写了2个用了struts2的项目。
若我把这2个项目全部部署在tomcat里，会出现这样的异常

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:371)
	at org.apache.struts2.dispatcher.Dispatcher.init(Dispatcher.java:424)
	at org.apache.struts2.dispatcher.FilterDispatcher.init(FilterDispatcher.java:213)
	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:3693)
	at org.apache.catalina.core.StandardContext.start(StandardContext.java:4342)
	at org.apache.catalina.core.ContainerBase.addChildInternal(ContainerBase.java:761)
	at org.apache.catalina.core.ContainerBase.addChild(ContainerBase.java:741)
	at org.apache.catalina.core.StandardHost.addChild(StandardHost.java:525)
	at org.apache.catalina.startup.HostConfig.deployDirectory(HostConfig.java:920)
	at org.apache.catalina.startup.HostConfig.deployDirectories(HostConfig.java:883)
	at org.apache.catalina.startup.HostConfig.deployApps(HostConfig.java:492)
	at org.apache.catalina.startup.HostConfig.start(HostConfig.java:1138)
	at org.apache.catalina.startup.HostConfig.lifecycleEvent(HostConfig.java:311)
	at org.apache.catalina.util.LifecycleSupport.fireLifecycleEvent(LifecycleSupport.java:120)
	at org.apache.catalina.core.ContainerBase.start(ContainerBase.java:1023)
	at org.apache.catalina.core.StandardHost.start(StandardHost.java:719)
	at org.apache.catalina.core.ContainerBase.start(ContainerBase.java:1015)
	at org.apache.catalina.core.StandardEngine.start(StandardEngine.java:443)
	at org.apache.catalina.core.StandardService.start(StandardService.java:448)
	at org.apache.catalina.core.StandardServer.start(StandardServer.java:710)
	at org.apache.catalina.startup.Catalina.start(Catalina.java:552)
	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:879)
	at com.opensymphony.xwork2.config.providers.XmlConfigurationProvider.loadDocuments(XmlConfigurationProvider.java:161)
	at com.opensymphony.xwork2.config.providers.XmlConfigurationProvider.init(XmlConfigurationProvider.java:130)
	at com.opensymphony.xwork2.config.impl.DefaultConfiguration.reloadContainer(DefaultConfiguration.java:155)
	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$DOMBuilder.setup(DomHelper.java:212)
	at com.opensymphony.xwork2.util.DomHelper$DOMBuilder.<init>(DomHelper.java:197)
	at com.opensymphony.xwork2.util.DomHelper$DOMBuilder.<init>(DomHelper.java:188)
	at com.opensymphony.xwork2.util.DomHelper$DOMBuilder.<init>(DomHelper.java:174)
	at com.opensymphony.xwork2.util.DomHelper.parse(DomHelper.java:114)
	at com.opensymphony.xwork2.config.providers.XmlConfigurationProvider.loadConfigurationFiles(XmlConfigurationProvider.java:870)
	... 34 more
2008-7-25 8:09:32 org.apache.catalina.core.StandardContext start
严重: Error filterStart
2008-7-25 8:09:32 org.apache.catalina.core.StandardContext start
严重: Context [/workmass] startup failed due to previous errors
2008-7-25 8:09:32 org.apache.coyote.http11.Http11AprProtocol start

但是如果我只部署一个项目 一切没问题。部署任何一个都没问题。但是只要2个一起部署，启动猫就出现上面的错误！不解啊！！

谢谢各位帮助~~~~

[maodie007]

谢谢了 问题 解决了
谢谢 M_song

[zidasine]

http://topic.csdn.net/u/20080426/10/c59082a0-bca3-4b5f-89de-bc9ee7eed40b.html
看下有没有帮助

[maodie007]

看了下 这个帖子也是众说芸芸
也没得到一个好的答案

[Landor2004]

删除xerce.jar

[M_song]

移除项目目录中的xerces.jar
there was a conflict between tomcat's internal XML parser and the xerces I was using inside my project.

[M_song]

http://www.nabble.com/org.apache.xerces.parsers.XML11Configuration-cannot-be-cast-to-org.apache.xerces.xni.parser.XMLParserConfiguration-td14108368.html
看篇文章!

[sony89757]

这个问题我也遇到过，我现在加了一个群,这个群人气较好，也的确有高手，不但可以交流问题,而且还可以接项目赚钱,QQ群号是:陆\肆\柒\玖\捌\柒\伍\伍,不要说我做广告,看看便知,如需要的话加入试试，如果你发现好的交流群也别忘了告诉我啊!呵呵!

[sunickzuo]

不错 收着~~

[xingyue]

我也遇到相同的问题

我用两种方法都能觉得问题
1.删除xerce.jar
2.web.xml里的这个配置,我居然在两个项目里用的一样的,param-value换下就ok了,保证两个项目里不一样
<context-param>
<param-name>webAppRootKey</param-name>
<param-value>CITYSPACESystem.root</param-value>
</context-param>

[qq327989741]

你两个项目相同吧

[一师兄]

移除项目目录中的xerces.jar
there was a conflict between tomcat's internal XML parser and the xerces I was using inside my project.

[zhaoyongu]

[Quote=引用 4 楼 landor2004 的回复:]
删除xerce.jar
[/Quote]
我通过这种方式解决了，顶！！

[yanzhoupuzhang]

我也遇到了这样的问题，老是报这个错误；把代码拿到另外一台电脑上运行，结果不包没错，我想也有可能不是代码本身的错误！