APPFUSE拦截器的添加！。

404.jsp中加入<c:redirect url="/login.jsp"/>

把web.xml中加入

<error-page>
  <error-code>404</error-code>
  <location>/404.jsp</location>
 </error-page>s

struts.xml

<action name="main" class="mainAction" method="main">
            <interceptor-ref name="currentCheck" />
            <result name="success">/WEB-INF/pages/main.jsp</result>
            <result name="shibai">/logout.jsp</result>
        </action>

org.aninggo.webapp.interceptor.AuthzInterceptor

public String intercept(ActionInvocation invocation) throws Exception {
        if (invocation.getAction() instanceof AuthzAware){
            Authz authz = new AuthzImpl();
            AuthzAware authzAware = (AuthzAware) invocation.getAction();
            authzAware.setAuthz(authz);
        }

        SecurityContext ctx = SecurityContextHolder.getContext();
        Authentication auth = ctx.getAuthentication();
        if (auth.getPrincipal() != null){
            try{
                UserDetails user = (UserDetails) auth.getPrincipal();
                
                if (user.getUsername() == null){
                    System.out.println("空的");
                    return "shibai";
                }
                System.out.println(user.getUsername());
            }catch (Exception e){
                // TODO: handle exception
                return "shibai";
            }
            
        }
        return invocation.invoke();
    }