Java tutorial
import java.io.*; import javax.servlet.*; import javax.servlet.http.*; import java.util.*; public class MyServlet extends HttpServlet { public void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, java.io.IOException { Cookie cookie = null; //Get an array of Cookies associated with this domain Cookie[] cookies = request.getCookies(); boolean hasCookies = false; if (cookies != null) hasCookies = true; // display the name/value of each cookie response.setContentType("text/html"); java.io.PrintWriter out = response.getWriter(); out.println("<html>"); out.println("<head>"); out.println("<title>Cookie information</title>"); out.println("</head>"); out.println("<body>"); if (hasCookies) { out.println("<h2> The name and value of each found cookie</h2>"); for (int i = 0; i < cookies.length; i++) { cookie = cookies[i]; out.println("Name of cookie #" + (i + 1) + ": " + cookie.getName() + "<br>"); out.println("Value of cookie #" + (i + 1) + ": " + cookie.getValue() + "<br><br>"); } } else { out.println("<h2> This request did not include any cookies</h2>"); } out.println("</body>"); out.println("</html>"); out.close(); } public void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, java.io.IOException { doGet(request, response); } }