Reading cookies from a servlet is easy. You can gain access to any cookies sent by the browser from the javax.servlet.http.HttpServletRequest passed to the servlet's doGet, doPost, etc methods. HttpServletResponse offers a method, and Cookies[] getCookies() returns an array of Cookie objects.
// Check for cookies
Cookie[] cookies = request.getCookies();
// Check to see if any cookies exists
if (cookies != null)
{
for (int i =0; i< cookies.length; i++)
{
Cookie aCookie = cookies[i];
System.out.println (