> Which servlet engine are you using? It can be a bug there. If you
> telnet to
> the web server and issue a request for the page you can see
> exactly what the
> Set-Cookie header returned by the server looks like. If I
> remember correctly
> it should look like
>
> Set-Cookie foo=bar; expires="Thu, 01-Jan-1970 00:00:00 GMT"
I'm using JRun on NT with Netscape Enterprise 3.6. The header I get for a
cookie with setMaxAge(0) is
Set-Cookie: TestCookie=TestValue; expires=Thu, 05-Nov-1998 22:35:50 GMT
when run at 15:35:50 MDT which is right.
Anyway, I was able to delete the cookies by using the following code:
public void service(HttpServletRequest request, HttpServletResponse
response) throws
ServletException, IOException {
Cookie[] cookies = request.getCookies();
PrintWriter out = response.getWriter();
int numCookies = 0;
Cookie cookie;
if (cookies != null) {
for (int i = 0; i < cookies.length; i++) {
cookie = new Cookie(cookies[i].getName(), "");
cookie.setMaxAge(0);
cookie.setDomain(".my.domain");
cookie.setPath("/");
response.addCookie(cookie);
numCookies++;
}
}
response.setContentType("text/html");
out.println("<html><head><title>ClearCookies</title></head><body>");
out.println("<h2>ClearCookies</h2><hr>");
out.println("<b>" + numCookies + " cookies have been deleted</b>");
out.println("<hr></body></html>");
out.close();
}
The key seems to be setting the domain and the path properly which kinda
sucks since cookie.getPath() and cookie.getDomain() both seem to return
null. Fortunately I know the appropriate values ahead of time.
-- Marc
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