public void onStartup(ServletContext servletContext) throws ServletException {
        super.onStartup(servletContext);
 
        // This will set to use COOKIE only
        servletContext.setSessionTrackingModes(
                Collections.singleton(SessionTrackingMode.COOKIE)
        );
        // This will prevent any JS on the page from accessing the
        // cookie - it will only be used/accessed by the HTTP transport
        // mechanism in use
        SessionCookieConfig sessionCookieConfig =
                servletContext.getSessionCookieConfig();
        sessionCookieConfig.setHttpOnly(true);
    }

package com.lgete.web.filter;
import java.io.IOException;
import javax.servlet.*;
import javax.servlet.http.*;
 
/**
 * @author Zhu Jia <a
 *         href="mailto:zhujia7895@gmail.com" rel="external nofollow" >zhujia7895@gmail.com</a>
 * 
 */
public class URLSessionFilter implements Filter {
    public void doFilter(ServletRequest request, ServletResponse response,
            FilterChain chain) throws IOException, ServletException {
        if (!(request instanceof HttpServletRequest)) {
            chain.doFilter(request, response);
            return;
        }
 
        HttpServletResponse httpResponse = (HttpServletResponse) response;
        HttpServletResponseWrapper wrappedResponse = new HttpServletResponseWrapper(
                httpResponse) { 
            public String encodeRedirectUrl(String url) {
                return url; 
            }
 
            public String encodeRedirectURL(String url) { 
                return url; 
            }
 
            public String encodeUrl(String url) { 
                return url; 
            }
 
            public String encodeURL(String url) { 
                return url; 
            } 
        }; 
        chain.doFilter(request, wrappedResponse); 
    }
 
    public void init(FilterConfig filterConfig) { 
    } 
    public void destroy() { 
    } 
}

<filter>     
    <filter-name>URLSessionFilter</filter-name>
    <filter-class>zj.web.filter.URLSessionFilter</filter-class>
</filter>
 
<filter-mapping>
    <filter-name>URLSessionFilter</filter-name>    
    <url-pattern>/*</url-pattern>
</filter-mapping>