Filter mapping url-pattern that excludes subdirectories

Question

Is there any way to make a filtermapping not include subdirectories?

For example.

I have .xhtml files in my context root, and I also have a subfolder named \

Answer 1

The solution, basically you need your own Filter class and define excluding URLs as init-param for filter

package test;

import java.io.IOException;
import java.util.ArrayList;
import java.util.List;

import javax.servlet.Filter;
import javax.servlet.FilterChain;
import javax.servlet.FilterConfig;
import javax.servlet.ServletException;
import javax.servlet.ServletRequest;
import javax.servlet.ServletResponse;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

public class LoginValidationFilter implements Filter {

    private String loginPage = "";
    private List excludedURLs;

    public void init(FilterConfig filterConfig) throws ServletException {
        this.loginPage = filterConfig.getInitParameter("loginPage");

        String[] excluded = filterConfig.getInitParameter("excludedURLs").split(";");
        excludedURLs = new ArrayList();
        for (int i = 0; i < excluded.length; i++) {
            excludedURLs.add(excluded[i]);
        }
    }

    public void destroy() {
        this.loginPage = "";
    }

    public void doFilter(ServletRequest request, ServletResponse response, FilterChain filterChain) throws IOException,
            ServletException {

        HttpServletRequest httpRequest = request instanceof HttpServletRequest ? (HttpServletRequest) request : null;
        HttpServletResponse httpResponse = response instanceof HttpServletResponse ? (HttpServletResponse) response
                : null;

        if (httpRequest == null || httpResponse == null) {
            filterChain.doFilter(request, response);
            return;
        }

        boolean isExcludedURL = false;
        for (int i = 0; i < excludedURLs.size(); i++) {
            if (httpRequest.getRequestURL().indexOf(excludedURLs.get(i)) > -1) {
                isExcludedURL = true;
                break;
            }
        }

        if (isExcludedURL) {
            filterChain.doFilter(request, response);
        } else {
            if (UserUtil.validateUserLogin(httpRequest)) {
                filterChain.doFilter(request, response);
            } else {
                httpResponse.sendRedirect(httpRequest.getContextPath() + loginPage);
            }
        }
    }
}

And define the filter, mapping and exclude URLs in web.xml

    LoginValidationFilter
    test.LoginValidationFilter
    
        loginPage
        /login.jsp
    
    
        excludedURLs
        /admin/;/assets/;/content/;/css/;/js/;/login.jsp;/login.cmd;/logout.cmd;forgot_password.jsp;pageName=
    


    LoginValidationFilter
    /*