Unable to instantiate Action,permissionAction,defined for 'permission_paging' in namespace '/admin/client'permissionAction com.opensymphony.xwork2.DefaultActionInvocation.createAction(DefaultActionInvocation.java:318)com.opensymphony.xwork2.DefaultAc

Unable to instantiate Action,permissionAction,defined for 'permission_paging' in namespace '/admin/client'permissionAction com.opensymphony.xwork2.DefaultActionInvocation.createAction(DefaultActionInvocation.java:318)com.opensymphony.xwork2.DefaultAc
Unable to instantiate Action,permissionAction,defined for 'permission_paging' in namespace '/admin/client'permissionAction
com.opensymphony.xwork2.DefaultActionInvocation.createAction(DefaultActionInvocation.java:318)
com.opensymphony.xwork2.DefaultActionInvocation.init(DefaultActionInvocation.java:399)
com.opensymphony.xwork2.DefaultActionProxy.prepare(DefaultActionProxy.java:198)
org.apache.struts2.impl.StrutsActionProxy.prepare(StrutsActionProxy.java:61)
org.apache.struts2.impl.StrutsActionProxyFactory.createActionProxy(StrutsActionProxyFactory.java:39)
com.opensymphony.xwork2.DefaultActionProxyFactory.createActionProxy(DefaultActionProxyFactory.java:58)
org.apache.struts2.dispatcher.Dispatcher.serviceAction(Dispatcher.java:475)
org.apache.struts2.dispatcher.ng.ExecuteOperations.executeAction(ExecuteOperations.java:77)
org.apache.struts2.dispatcher.ng.filter.StrutsPrepareAndExecuteFilter.doFilter(StrutsPrepareAndExecuteFilter.java:91)
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
......
java.lang.ClassNotFoundException:permissionAction
......

Unable to instantiate Action,permissionAction,defined for 'permission_paging' in namespace '/admin/client'permissionAction com.opensymphony.xwork2.DefaultActionInvocation.createAction(DefaultActionInvocation.java:318)com.opensymphony.xwork2.DefaultAc
不能实例化permissionAction这个类
是不是没有在spring中定义permissionAction这个bean