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Get cookie value in java

I’ve initialized cooke like this in my JSP,

String timeStamp = new SimpleDateFormat("dd:MM:yyyy_HH:mm:ss:SSS").format(Calendar.getInstance().getTime());
timeStamp = timeStamp + ":" + System.nanoTime();
String loc = "/u/poolla/workspace/FirstServlet/WebContent/WEB-INF/"+timeStamp;
Cookie thecookie = new Cookie("thecookie", loc);
thecookie.setMaxAge(60*60*24);
response.addCookie(thecookie);

So, all the cookies created will have the same name, but different value for different user access time.

At the ending of java servlet I want to deactivate/kill the cookie that has been passed at the beginning of java servlet and say if they are 5 users using the system in parallel how will I know which cookie to deactivate for which user in the last of my.java?

for example, consider

User 1 : cookie name `thecookie` value `AAA`
User 2 : cookie name `thecookie` value `BBB`
User 3 : cookie name `thecookie` value `CCC`
User 4 : cookie name `thecookie` value `DDD`
User 5 : cookie name `thecookie` value `EEE`

Now, at the end of my.java servlet I want to deactivate the cookie with value CCC that has been assigned at the beginning of my.java without disturbing other cookie values, how to do this?

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Answer

You are using the wrong method for reading the cookies..

Cookie[] cookies = request.getCookies();

if (cookies != null) {
 for (Cookie cookie : cookies) {
   if (cookie.getName().equals("cookieName")) {
     //do something
     //value can be retrieved using #cookie.getValue()
    }
  }
}

use this. No need to detect the cookie for particular user just deactivate it.

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