404错误

源自：2-2 Struts2 案例代码实现

404错误

At least one JAR was scanned for TLDs yet contained no TLDs. Enable debug logging for this logger for a complete list of JARs that were scanned but no TLDs were found in them. Skipping unneeded JARs during scanning can improve startup time and JSP compilation time.

ERROR StatusLogger Log4j2 could not find a logging implementation. Please add log4j-core to the classpath. Using SimpleLogger to log to the console...

ERROR Dispatcher Dispatcher initialization failed

Unable to load configuration. - action - file:/E:/java/.metadata/.plugins/org.eclipse.wst.server.core/tmp0/wtpwebapps/HelloWorld/WEB-INF/classes/struts.xml:7:82

at com.opensymphony.xwork2.config.ConfigurationManager.getConfiguration(ConfigurationManager.java:69)

at org.apache.struts2.dispatcher.Dispatcher.getContainer(Dispatcher.java:957)

at org.apache.struts2.dispatcher.Dispatcher.init_PreloadConfiguration(Dispatcher.java:463)

at org.apache.struts2.dispatcher.Dispatcher.init(Dispatcher.java:496)

at org.apache.struts2.dispatcher.InitOperations.initDispatcher(InitOperations.java:73)

at org.apache.struts2.dispatcher.filter.StrutsPrepareAndExecuteFilter.init(StrutsPrepareAndExecuteFilter.java:61)

at org.apache.catalina.core.ApplicationFilterConfig.initFilter(ApplicationFilterConfig.java:270)

at org.apache.catalina.core.ApplicationFilterConfig.getFilter(ApplicationFilterConfig.java:251)

at org.apache.catalina.core.ApplicationFilterConfig.<init>(ApplicationFilterConfig.java:102)

at org.apache.catalina.core.StandardContext.filterStart(StandardContext.java:4491)

at org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:5135)

at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:183)

at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1429)

at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1419)

at java.util.concurrent.FutureTask.run(Unknown Source)

at org.apache.tomcat.util.threads.InlineExecutorService.execute(InlineExecutorService.java:75)

at java.util.concurrent.AbstractExecutorService.submit(Unknown Source)

at org.apache.catalina.core.ContainerBase.startInternal(ContainerBase.java:944)

at org.apache.catalina.core.StandardHost.startInternal(StandardHost.java:839)

at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:183)

at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1429)

at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1419)

at java.util.concurrent.FutureTask.run(Unknown Source)

at org.apache.tomcat.util.threads.InlineExecutorService.execute(InlineExecutorService.java:75)

at java.util.concurrent.AbstractExecutorService.submit(Unknown Source)

at org.apache.catalina.core.ContainerBase.startInternal(ContainerBase.java:944)

at org.apache.catalina.core.StandardEngine.startInternal(StandardEngine.java:261)

at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:183)

at org.apache.catalina.core.StandardService.startInternal(StandardService.java:422)

at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:183)

at org.apache.catalina.core.StandardServer.startInternal(StandardServer.java:770)

at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:183)

at org.apache.catalina.startup.Catalina.start(Catalina.java:682)

at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)

at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)

at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)

at java.lang.reflect.Method.invoke(Unknown Source)

at org.apache.catalina.startup.Bootstrap.start(Bootstrap.java:350)

at org.apache.catalina.startup.Bootstrap.main(Bootstrap.java:492)

Caused by: Action class [com.sadfoo.imooc.action.HelloWorldAction] not found - action - file:/E:/java/.metadata/.plugins/org.eclipse.wst.server.core/tmp0/wtpwebapps/HelloWorld/WEB-INF/classes/struts.xml:7:82

at com.opensymphony.xwork2.config.providers.XmlConfigurationProvider.verifyAction(XmlConfigurationProvider.java:508)

at com.opensymphony.xwork2.config.providers.XmlConfigurationProvider.addAction(XmlConfigurationProvider.java:457)

at com.opensymphony.xwork2.config.providers.XmlConfigurationProvider.addPackage(XmlConfigurationProvider.java:572)

at com.opensymphony.xwork2.config.providers.XmlConfigurationProvider.loadPackages(XmlConfigurationProvider.java:326)

at org.apache.struts2.config.StrutsXmlConfigurationProvider.loadPackages(StrutsXmlConfigurationProvider.java:108)

at com.opensymphony.xwork2.config.impl.DefaultConfiguration.reloadContainer(DefaultConfiguration.java:196)

at com.opensymphony.xwork2.config.ConfigurationManager.getConfiguration(ConfigurationManager.java:66)

... 38 more

九月 13, 2018 10:10:00 下午 org.apache.catalina.core.StandardContext filterStart

严重: Exception starting filter [struts2]

Unable to load configuration. - action - file:/E:/java/.metadata/.plugins/org.eclipse.wst.server.core/tmp0/wtpwebapps/HelloWorld/WEB-INF/classes/struts.xml:7:82

at org.apache.struts2.dispatcher.Dispatcher.init(Dispatcher.java:509)