In a web.xml url-pattern matcher is there a way to exclude URLs?

Question

I wrote a filter that needs to be invoked every time a url on my site is accessed EXCEPT the CSS, JS, and IMAGE files. So in my definition I'd like to have something like:

<filter-mapping>    <filter-name>myAuthorizationFilter</filter-name>    <url-pattern>NOT /css && NOT /js && NOT /images</url-pattern> </filter-mapping> 

Is there anyway to do this? The only documentation I can find has only /*

UPDATE:

I ended up using something similar to an answer provided by Mr.J4mes:

   private static Pattern excludeUrls = Pattern.compile("^.*/(css|js|images)/.*$", Pattern.CASE_INSENSITIVE);    private boolean isWorthyRequest(HttpServletRequest request) {        String url = request.getRequestURI().toString();        Matcher m = excludeUrls.matcher(url);         return (!m.matches());    } 

Answer 1

I think you can try this one:

@WebFilter(filterName = "myFilter", urlPatterns = {"*.xhtml"}) public class MyFilter implements Filter {     @Override    public void doFilter(ServletRequest request, ServletResponse response, FilterChain chain)             throws IOException, ServletException {       String path = ((HttpServletRequest) request).getServletPath();        if (excludeFromFilter(path)) chain.doFilter(request, response);       else // do something    }     private boolean excludeFromFilter(String path) {       if (path.startsWith("/javax.faces.resource")) return true; // add more page to exclude here       else return false;    } } 

Answer 2

The URL pattern mapping does not support exclusions. This is a limitation of the Servlet specification. You can try the manual workaround posted by Mr.J4mes.