【轉】Caused by: Action class [com.struts.action.xxxAction] not found 解決方法
阿新 • • 發佈：2019-01-13
剛學習Struts，自己寫了個簡單程式，一啟動tomcat就報錯，但是我按著ctrl點選struts.xml中com.struts.action.LoginAction也能定位到LoginAction類，自己弄了半天，網上找了好久終於搞定了！
控制檯報錯：[color=#FF0000]Unable to load configuration. - action - file:/E:/tl/workspace/.metadata/.plugins/org.eclipse.wst.server.core/tmp0/wtpwebapps/struts2/WEB-INF/classes/struts.xml:11:82
at org.apache.struts2.dispatcher.Dispatcher.init(Dispatcher.java:493)
at org.apache.struts2.dispatcher.ng.InitOperations.initDispatcher(InitOperations.java:74)
at org.apache.struts2.dispatcher.ng.filter.StrutsPrepareAndExecuteFilter.init(StrutsPrepareAndExecuteFilter.java:57)
at org.apache.catalina.core.ApplicationFilterConfig.initFilter(ApplicationFilterConfig.java:281)
at org.apache.catalina.core.ApplicationFilterConfig.getFilter(ApplicationFilterConfig.java:262)
at org.apache.catalina.core.ApplicationFilterConfig.<init>(ApplicationFilterConfig.java:107)
at org.apache.catalina.core.StandardContext.filterStart(StandardContext.java:4775)
at org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:5452)
at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:150)
at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1559)
at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1549)
at java.util.concurrent.FutureTask.run(FutureTask.java:262)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
at java.lang.Thread.run(Thread.java:744)
Caused by: Unable to load configuration. - action - file:/E:/tl/workspace/.metadata/.plugins/org.eclipse.wst.server.core/tmp0/wtpwebapps/struts2/WEB-INF/classes/struts.xml:11:82
at com.opensymphony.xwork2.config.ConfigurationManager.getConfiguration(ConfigurationManager.java:70)
at org.apache.struts2.dispatcher.Dispatcher.getContainer(Dispatcher.java:967)
at org.apache.struts2.dispatcher.Dispatcher.init_PreloadConfiguration(Dispatcher.java:435)
at org.apache.struts2.dispatcher.Dispatcher.init(Dispatcher.java:479)
... 14 more
Caused by: Action class [com.struts.action.LoginAction] not found - action - file:/E:/tl/workspace/.metadata/.plugins/org.eclipse.wst.server.core/tmp0/wtpwebapps/struts2/WEB-INF/classes/struts.xml:11:82
at com.opensymphony.xwork2.config.providers.XmlConfigurationProvider.verifyAction(XmlConfigurationProvider.java:486)
at com.opensymphony.xwork2.config.providers.XmlConfigurationProvider.addAction(XmlConfigurationProvider.java:429)
at com.opensymphony.xwork2.config.providers.XmlConfigurationProvider.addPackage(XmlConfigurationProvider.java:556)
at com.opensymphony.xwork2.config.providers.XmlConfigurationProvider.loadPackages(XmlConfigurationProvider.java:295)
at org.apache.struts2.config.StrutsXmlConfigurationProvider.loadPackages(StrutsXmlConfigurationProvider.java:112)
at com.opensymphony.xwork2.config.impl.DefaultConfiguration.reloadContainer(DefaultConfiguration.java:264)
at com.opensymphony.xwork2.config.ConfigurationManager.getConfiguration(ConfigurationManager.java:67)
... 17 more
網上查詢有以下解決方法：
1.檢查action的name值和url中的大小寫是否相同。
2.檢查action中的class的路徑名和你寫的類名的大小寫。
3.參照struts確定是否引入不必要的jar包，引發衝突（這個不好查到）。
這些都嘗試依然不行，又搞了好久最後才弄好。。。。
1.在專案webRoot下面新建一個classes資料夾，把struts.xml拖到下面，可以正常使用，啟動不再報錯（但這個不是根本原因），
2.清理快取，clean專案，記住是在eclipse->project->clean這裡面clean，以前我都是在server部署過的tomcat上面右鍵clean，導致clean不徹底，因此才導致這個錯誤的。。。。。。。。。。。。。。。。。。。。。。
轉自：https://blog.csdn.net/tomcat_2014/article/details/46136133