Source Code : Cookie reader

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Cookie reader

    

import javax.servlet.ServletException;
import javax.servlet.http.Cookie;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

public class CookieReader 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);
  }
}

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