最近在研究“struts2 in action” 这本书时，在实践书中的案例过程中，遇到了这样的异常信息：
Unable to load configuration. - action - file:/G:/jboss-4.2.3.GA/server/default/deploy/Struts2Action.war/WEB-INF/classes/struts.xml:42:67
at com.opensymphony.xwork2.config.ConfigurationManager.getConfiguration(ConfigurationManager.java:69)
at org.apache.struts2.dispatcher.Dispatcher.init_PreloadConfiguration(Dispatcher.java:371)
at org.apache.struts2.dispatcher.Dispatcher.init(Dispatcher.java:415)
at org.apache.struts2.dispatcher.ng.InitOperations.initDispatcher(InitOperations.java:69)
at org.apache.struts2.dispatcher.ng.filter.StrutsPrepareAndExecuteFilter.init(StrutsPrepareAndExecuteFilter.java:51)
at org.apache.catalina.core.ApplicationFilte
弄好长时间才解决掉：
开发环境：Myeclipse7.0 JBoss4.2.3
开发中所应用到的struts2包：
commons-fileupload-1.2.1.jar
commons-io-1.3.2.jar
freemarker-2.3.16.jar
javassist-3.7.ga.jar
ognl-3.0.jar
struts2-core-2.2.1.1.jar
xwork-core-2.2.1.1.jar
解决方案：在struts.xml文件中，配置<action name="register" class="dcom.study.web.action.Register">中，class节点出错。
当然，如果各位在实际开发中，遇到这样的异常信息，也要参考网络上的其他方案。多方面，权衡考虑。
附struts2 开发的相关包
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