Wednesday, 23rd June 2010
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Delete (or expire) a Cookie from a servlet

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This example shows how to remove a cookie from a client's browser

Contents

the article

The example uses the Cookie.setMaxAge Method to set the expiration of a cookie. Max age zero tells the cookie to expire immediately.

MyServlet 

import javax.servlet.*;
import javax.servlet.http.*;
 
public class MyServlet extends HttpServlet {
  public void doPost(HttpServletRequest req, HttpServletResponse res) {
 
    Cookie cookie = new Cookie ("myCookie", "theCookieValue");
 
    // Expire in five minutes (5 * 60)
    cookie.setMaxAge( 300 );
 
    // Expire after the browser is closed
    // cookie.setMaxAge( -1 );
 
    // Expire right now
    // cookie.setMaxAge( 0 );
 
    }
 
  public void doGet(HttpServletRequest req, HttpServletResponse res) {
    doPost(req, res);
    }
 
}

See Also

Read a Cookie from a servlet, Set a Cookie from a servlet, Real's Java How To

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