很奇怪的struts2配置问题

Question

我MyEclipse中有两个工程，一个是webdemo,另一个是netdisk.两个工程的配置基本相同(唯一不同的是，我没在webdemo中写struts.xml配置文件，我想这个应该不是出错的原因）。webdemo工程可以正常运行，而netdisk在部署之后爆出以下异常！
不知原因为何？
严重: Exception starting filter Struts2
Unable to load configuration. - [unknown location]
at org.apache.struts2.dispatcher.Dispatcher.init(Dispatcher.java:431)
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:3800)
at org.apache.catalina.core.StandardContext.start(StandardContext.java:4450)
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:526)
at org.apache.catalina.startup.HostConfig.deployDirectory(HostConfig.java:987)
at org.apache.catalina.startup.HostConfig.deployDirectories(HostConfig.java:909)
at org.apache.catalina.startup.HostConfig.deployApps(HostConfig.java:495)
at org.apache.catalina.startup.HostConfig.check(HostConfig.java:1274)
at org.apache.catalina.startup.HostConfig.lifecycleEvent(HostConfig.java:296)
at org.apache.catalina.util.LifecycleSupport.fireLifecycleEvent(LifecycleSupport.java:119)
at org.apache.catalina.core.ContainerBase.backgroundProcess(ContainerBase.java:1337)
at org.apache.catalina.core.ContainerBase$ContainerBackgroundProcessor.processChildren(ContainerBase.java:1601)
at org.apache.catalina.core.ContainerBase$ContainerBackgroundProcessor.processChildren(ContainerBase.java:1610)
at org.apache.catalina.core.ContainerBase$ContainerBackgroundProcessor.run(ContainerBase.java:1590)
at java.lang.Thread.run(Thread.java:619)
Caused by: 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:374)
at org.apache.struts2.dispatcher.Dispatcher.init(Dispatcher.java:418)
... 20 more
Caused by: Caught exception while loading file struts-default.xml - [unknown location]
at com.opensymphony.xwork2.config.providers.XmlConfigurationProvider.loadConfigurationFiles(XmlConfigurationProvider.java:902)
at com.opensymphony.xwork2.config.providers.XmlConfigurationProvider.loadDocuments(XmlConfigurationProvider.java:143)
at com.opensymphony.xwork2.config.providers.XmlConfigurationProvider.init(XmlConfigurationProvider.java:110)
at com.opensymphony.xwork2.config.impl.DefaultConfiguration.reloadContainer(DefaultConfiguration.java:168)
at com.opensymphony.xwork2.config.ConfigurationManager.getConfiguration(ConfigurationManager.java:55)
... 22 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:893)
... 26 more
2010-4-11 12:11:23 org.apache.catalina.core.StandardContext start
严重: Error filterStart
2010-4-11 12:11:23 org.apache.catalina.core.StandardContext start
严重: Context [/netdisk] startup failed due to previous errors

Answer 1

把一个给remove掉 试试看么 

Answer 2

以下是netdisk的.classpath文件：刚开始通过这个文件我发现netdisk重复加载了我置于WEB-INF/lib的几个jar,后来我从新构建了，但问题依旧
<?xml version="1.0" encoding="UTF-8"?>
<classpath>
<classpathentry kind="src" path="src"/>
<classpathentry kind="con" path="org.eclipse.jdt.launching.JRE_CONTAINER"/>
<classpathentry kind="con" path="melibrary.com.genuitec.eclipse.j2eedt.core.MYECLIPSE_JAVAEE_5_CONTAINER"/>
<classpathentry kind="lib" path="D:/java/javaWeb/struts/dwr.jar"/>
<classpathentry kind="lib" path="D:/java/javaWeb/struts/jsonplugin-0.34.jar"/>
<classpathentry kind="con" path="melibrary.com.genuitec.eclipse.hibernate.MYECLIPSE_HIBERNATE3_2_EM"/>
<classpathentry kind="con" path="melibrary.com.genuitec.eclipse.hibernate.MYECLIPSE_HIBERNATE3_2_CORE"/>
<classpathentry kind="con" path="melibrary.com.genuitec.eclipse.springframework.MYECLIPSE_SPRING25_CORE"/>
<classpathentry kind="con" path="melibrary.com.genuitec.eclipse.springframework.MYECLIPSE_SPRING25_PERSISTENCE_JDBC"/>
<classpathentry kind="con" path="melibrary.com.genuitec.eclipse.springframework.MYECLIPSE_SPRING25_AOP"/>
<classpathentry kind="con" path="melibrary.com.genuitec.eclipse.springframework.MYECLIPSE_SPRING25_PERSISTENCE_CORE"/>
<classpathentry kind="lib" path="D:/java/javaWeb/struts/struts-2.1.8.1/lib/struts2-spring-plugin-2.1.8.1.jar"/>
<classpathentry kind="lib" path="D:/java/javaWeb/ant/apache-ant-1.8.0/lib/ant.jar"/>
<classpathentry kind="lib" path="WebRoot/WEB-INF/lib/commons-fileupload-1.2.1.jar"/>
<classpathentry kind="lib" path="D:/java/javaWeb/netdisk/WebRoot/WEB-INF/lib/xwork-core-2.1.6.jar"/>
<classpathentry kind="lib" path="D:/java/javaWeb/netdisk/WebRoot/WEB-INF/lib/commons-io-1.3.2.jar"/>
<classpathentry kind="lib" path="D:/java/javaWeb/netdisk/WebRoot/WEB-INF/lib/commons-logging-1.0.4.jar"/>
<classpathentry kind="lib" path="D:/java/javaWeb/netdisk/WebRoot/WEB-INF/lib/freeer-2.3.15.jar"/>
<classpathentry kind="lib" path="D:/java/javaWeb/netdisk/WebRoot/WEB-INF/lib/ognl-2.7.3.jar"/>
<classpathentry kind="lib" path="D:/java/javaWeb/netdisk/WebRoot/WEB-INF/lib/struts2-core-2.1.8.1.jar"/>
<classpathentry kind="output" path="WebRoot/WEB-INF/classes"/>
</classpath>

Answer 3

当我在Depoly中remove掉netdisk后启动Server：正常
当我在Depoly中remove掉webdemo后启动Server：抛出异常：
严重: Error starting static Resources
java.lang.IllegalArgumentException: Document base D:\Program Files\apache-tomcat-6.0.20\webapps\webdemo does not exist or is not a readable directory
at org.apache.naming.resources.FileDirContext.setDocBase(FileDirContext.java:142)
at org.apache.catalina.core.StandardContext.resourcesStart(StandardContext.java:4048)
at org.apache.catalina.core.StandardContext.start(StandardContext.java:4217)
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:526)
at org.apache.catalina.startup.HostConfig.deployDescriptor(HostConfig.java:630)
at org.apache.catalina.startup.HostConfig.deployDescriptors(HostConfig.java:556)
at org.apache.catalina.startup.HostConfig.deployApps(HostConfig.java:491)
at org.apache.catalina.startup.HostConfig.start(HostConfig.java:1206)
at org.apache.catalina.startup.HostConfig.lifecycleEvent(HostConfig.java:314)
at org.apache.catalina.util.LifecycleSupport.fireLifecycleEvent(LifecycleSupport.java:119)
at org.apache.catalina.core.ContainerBase.start(ContainerBase.java:1053)
at org.apache.catalina.core.StandardHost.start(StandardHost.java:722)
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:583)
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)
2010-4-11 20:01:48 org.apache.catalina.core.StandardContext start

Answer 4

在D:\Program Files\apache-tomcat-6.0.20\conf\Catalina\localhost删除webdemo.xml后终于成功启动Server
话说MyEclipse这么菜的？一次只能部署一个基于SSH框架的web工程？