有关Struts2的问题

本地建了一个S2SH的项目，在本地运行没问题，在测试服务器上也可以，
可是一到外网服务器，启动的时候就报以下异常信息：[com.opensymphony.xwork2.validator.DefaultValidatorFactory]-[ERROR] Unable to load file:/root/
java.lang.NullPointerException
at java.util.Arrays$ArrayList.<init>(Arrays.java:3357)
at java.util.Arrays.asList(Arrays.java:3343)
at com.opensymphony.xwork2.validator.DefaultValidatorFactory.parseValidators(DefaultValidatorFactory.java:117)
at com.opensymphony.xwork2.validator.DefaultValidatorFactory.<init>(DefaultValidatorFactory.java:44)
at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:39)
at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:27)
at java.lang.reflect.Constructor.newInstance(Constructor.java:513)
at com.opensymphony.xwork2.inject.ContainerImpl$ConstructorInjector.construct(ContainerImpl.java:419)
at com.opensymphony.xwork2.inject.ContainerImpl.inject(ContainerImpl.java:492)
at com.opensymphony.xwork2.inject.ContainerImpl$7.call(ContainerImpl.java:532)
at com.opensymphony.xwork2.inject.ContainerImpl.callInContext(ContainerImpl.java:581)
at com.opensymphony.xwork2.inject.ContainerImpl.inject(ContainerImpl.java:530)
at com.opensymphony.xwork2.config.impl.LocatableFactory.create(LocatableFactory.java:32)
at com.opensymphony.xwork2.inject.ContainerBuilder$4.create(ContainerBuilder.java:130)
at com.opensymphony.xwork2.inject.Scope$2$1.create(Scope.java:51)
at com.opensymphony.xwork2.inject.ContainerImpl$ParameterInjector.inject(ContainerImpl.java:462)
at com.opensymphony.xwork2.inject.ContainerImpl.getParameters(ContainerImpl.java:477)
at com.opensymphony.xwork2.inject.ContainerImpl.access$000(ContainerImpl.java:34)
at com.opensymphony.xwork2.inject.ContainerImpl$MethodInjector.inject(ContainerImpl.java:293)
at com.opensymphony.xwork2.inject.ContainerImpl$ConstructorInjector.construct(ContainerImpl.java:431)
at com.opensymphony.xwork2.inject.ContainerImpl.inject(ContainerImpl.java:492)
at com.opensymphony.xwork2.inject.ContainerImpl$7.call(ContainerImpl.java:532)
at com.opensymphony.xwork2.inject.ContainerImpl.callInContext(ContainerImpl.java:581)
at com.opensymphony.xwork2.inject.ContainerImpl.inject(ContainerImpl.java:530)
at com.opensymphony.xwork2.config.impl.LocatableFactory.create(LocatableFactory.java:32)
at com.opensymphony.xwork2.inject.ContainerBuilder$4.create(ContainerBuilder.java:130)
at com.opensymphony.xwork2.inject.Scope$2$1.create(Scope.java:51)
at com.opensymphony.xwork2.inject.ContainerImpl$ParameterInjector.inject(ContainerImpl.java:462)
at com.opensymphony.xwork2.inject.ContainerImpl.getParameters(ContainerImpl.java:477)
at com.opensymphony.xwork2.inject.ContainerImpl.access$000(ContainerImpl.java:34)
at com.opensymphony.xwork2.inject.ContainerImpl$MethodInjector.inject(ContainerImpl.java:293)
at com.opensymphony.xwork2.inject.ContainerImpl.inject(ContainerImpl.java:485)
at com.opensymphony.xwork2.inject.ContainerImpl$6.call(ContainerImpl.java:523)
at com.opensymphony.xwork2.inject.ContainerImpl$6.call(ContainerImpl.java:522)
at com.opensymphony.xwork2.inject.ContainerImpl.callInContext(ContainerImpl.java:574)
at com.opensymphony.xwork2.inject.ContainerImpl.inject(ContainerImpl.java:521)
at com.opensymphony.xwork2.ObjectFactory.injectInternalBeans(ObjectFactory.java:127)
at com.opensymphony.xwork2.spring.SpringObjectFactory.autoWireBean(SpringObjectFactory.java:181)
at com.opensymphony.xwork2.spring.SpringObjectFactory.buildBean(SpringObjectFactory.java:158)
at com.opensymphony.xwork2.spring.SpringObjectFactory.buildBean(SpringObjectFactory.java:129)
at com.opensymphony.xwork2.ObjectFactory.buildBean(ObjectFactory.java:139)
at com.opensymphony.xwork2.ObjectFactory.buildInterceptor(ObjectFactory.java:180)
at com.opensymphony.xwork2.config.providers.InterceptorBuilder.constructInterceptorReference(InterceptorBuilder.java:59)
at com.opensymphony.xwork2.config.providers.XmlConfigurationProvider.lookupInterceptorReference(XmlConfigurationProvider.java:1092)
at com.opensymphony.xwork2.config.providers.XmlConfigurationProvider.loadInterceptorStack(XmlConfigurationProvider.java:798)
at com.opensymphony.xwork2.config.providers.XmlConfigurationProvider.loadInterceptorStacks(XmlConfigurationProvider.java:811)
at com.opensymphony.xwork2.config.providers.XmlConfigurationProvider.loadInterceptors(XmlConfigurationProvider.java:834)
at com.opensymphony.xwork2.config.providers.XmlConfigurationProvider.addPackage(XmlConfigurationProvider.java:441)
at com.opensymphony.xwork2.config.providers.XmlConfigurationProvider.loadPackages(XmlConfigurationProvider.java:265)
at org.apache.struts2.config.StrutsXmlConfigurationProvider.loadPackages(StrutsXmlConfigurationProvider.java:111)
at com.opensymphony.xwork2.config.impl.DefaultConfiguration.reloadContainer(DefaultConfiguration.java:189)
at com.opensymphony.xwork2.config.ConfigurationManager.getConfiguration(ConfigurationManager.java:55)
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: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.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)PS：Struts2的版本是2.1.6,spring版本是3.0.3,hibernate版本是3.0，J2EE是5.0的。
     

解决方案 »

  1.   

    外网服务器的环境跟你测试服务器的环境一样吗
    对比两个服务器环境一下，是不是Lib包的问题
      

  2.   

    linux下的根目录/root问题？ 貌似用ubuntu中遇到类似的问题
      

  3.   

    是一样的，lib包也是一样的，
    虽然报异常，但是项目却能成功启动，
    其他的功能都没问题。
      

  4.   

    是权限的问题吗？，还是其他原因，
    只有上传文件的时候有用到目录其他都没有，存在临时文件的时候，
    我让它存在在默认目录下，是这个问题吗？
     <!-- 指定上传文件时临时文件存放的地方 -->
     <constant name="struts.multipart.saveDir" value="/"></constant>
      

  5.   

    这个不指定，应该指的是默认temp目录，
    指定为/，指的是操作系统的根，这可能真有权限问题。