Cookie - javax.servlet.http.Cookie

La classe cookie permet de manipuler un cookie.
Pour obtenir les cookies.

Cookie[] cookies = req.getCookies();
for (int i = 0; i < cookies.length; i++)
{
 Cookie cookie = cookies[i];
 String name = cookie.getName();
 String value = cookie.getValue();
 out.println(name + " = " + value);
}