关于NoSuchMethodException的问题，急 ~~~~谢谢

Question

type Exception reportmessage description The server encountered an internal error () that prevented it from fulfilling this request.exception java.lang.NoSuchMethodException: com.vianet.security.action.OperatorAction.list()
java.lang.Class.getMethod(Class.java:1605)
org.apache.struts2.interceptor.validation.AnnotationValidationInterceptor.getActionMethod(AnnotationValidationInterceptor.java:75)
org.apache.struts2.interceptor.validation.AnnotationValidationInterceptor.doIntercept(AnnotationValidationInterceptor.java:47)
com.opensymphony.xwork2.interceptor.MethodFilterInterceptor.intercept(MethodFilterInterceptor.java:87)
com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:236)
com.opensymphony.xwork2.interceptor.ConversionErrorInterceptor.intercept(ConversionErrorInterceptor.java:122)
com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:236)
com.opensymphony.xwork2.interceptor.ParametersInterceptor.doIntercept(ParametersInterceptor.java:195)
com.opensymphony.xwork2.interceptor.MethodFilterInterceptor.intercept(MethodFilterInterceptor.java:87)
com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:236)
com.opensymphony.xwork2.interceptor.ParametersInterceptor.doIntercept(ParametersInterceptor.java:195)
com.opensymphony.xwork2.interceptor.MethodFilterInterceptor.intercept(MethodFilterInterceptor.java:87)

Answer 1

请检查类com.vianet.security.action.OperatorAction是否有方法list() 

Answer 2

没有此方法，你看看 这个方法 OperatorAction()写了没有?
或者问题类中明明有这个方法，可能是方法设置了protected，所以JSP页面访问不到，所以才报错的，把OperatorAction()改成public。