```
@IocBean
public class URLPermissionsFilter extends PermissionsAuthorizationFilter implements ActionFilter{
public Logger logger = LoggerFactory.getLogger(getClass());
private Dao dao;
@Override
public View match(ActionContext actionContext) {
dao=actionContext.getIoc().get(Dao.class);
return null;
}
@Override
public boolean isAccessAllowed(ServletRequest request, ServletResponse response, Object mappedValue) throws IOException {
``
isAccessAllowed 获取不到dao