Struts2常见错误

java.lang.NoSuchMethodError: com.opensymphony.xwork2.config.ConfigurationManager.addContainerProvider(Lcom/opensymphony/xwork2/config/ContainerProvider;)V at org.apache.struts2.dispatcher.Dispatcher.init_DefaultProperties(Dispatcher.java:310) at org.apache.struts2.dispatcher.Dispatcher.init(Dispatcher.java:430) at org.apache.struts2.dispatcher.FilterDispatcher.init(FilterDispatcher.java:193) at org.apache.catalina.core.ApplicationFilterConfig.getFilter(ApplicationFilterConfig.java:295) at org.apache.catalina.core.ApplicationFilterConfig.setFilterDef(ApplicationFilterConfig.java:422) at org.apache.catalina.core.ApplicationFilterConfig.<init>(ApplicationFilterConfig.java:115) at org.apache.catalina.core.StandardContext.filterStart(StandardContext.java:4071) at org.apache.catalina.core.StandardContext.start(StandardContext.java:4725) at org.apache.catalina.core.ContainerBase.addChildInternal(ContainerBase.java:799) at org.apache.catalina.core.ContainerBase.addChild(ContainerBase.java:779) at org.apache.catalina.core.StandardHost.addChild(StandardHost.java:601) at org.apache.catalina.startup.HostConfig.deployDirectory(HostConfig.java:1079) at org.apache.catalina.startup.HostConfig.deployDirectories(HostConfig.java:1002) at org.apache.catalina.startup.HostConfig.deployApps(HostConfig.java:506) at org.apache.catalina.startup.HostConfig.start(HostConfig.java:1315) at org.apache.catalina.startup.HostConfig.lifecycleEvent(HostConfig.java:324) at org.apache.catalina.util.LifecycleSupport.fireLifecycleEvent(LifecycleSupport.java:142) at org.apache.catalina.core.ContainerBase.start(ContainerBase.java:1061) at org.apache.catalina.core.StandardHost.start(StandardHost.java:840) at org.apache.catalina.core.ContainerBase.start(ContainerBase.java:1053) at org.apache.catalina.core.StandardEngine.start(StandardEngine.java:463) at org.apache.catalina.core.StandardService.start(StandardService.java:525) at org.apache.catalina.core.StandardServer.start(StandardServer.java:754) at org.apache.catalina.startup.Catalina.start(Catalina.java:595) 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:289) at org.apache.catalina.startup.Bootstrap.main(Bootstrap.java:414)2012-7-19 14:35:23 org.apache.catalina.core.StandardContext start严重: Error filterStart2012-7-19 14:35:23 org.apache.catalina.core.StandardContext start严重: Context [/forum] startup failed due to previous errors2012-7-19 14:35:23 org.apache.catalina.core.ApplicationContext log信息: Closing Spring root WebApplicationContext

org.apache.struts2.dispatcher.FilterDispatcher is now deprecated。因此，需要将web.xml中的配置做如下修改：

  <filter>  <filter-name>struts2</filter-name>  <filter-class>     org.apache.struts2.dispatcher.FilterDispatcher  </filter-class>  </filter>

改为

  <filter>        <filter-name>struts2</filter-name>        <filter-class>org.apache.struts2.dispatcher.ng.filter.StrutsPrepareAndExecuteFilter</filter-class>  </filter>