Mukul Gandhi wrote:
I cannot ensure you I am completly right, but here's what I think.
> Hi,
> 1. I have a doubt regarding Cookie.setMaxAge(int expiry) function. In a
> servlet, I invoke function setMaxAge(120) on a Cookie. This will set the
> expiry date of the cookie as 120 seconds. Is the expiry clock for the
> cookie running on server or the client ? If clock is running on the server
> then does the clock stops after servlet instance shuts down(or after httpd
> stops running).
In cookie specification we can read that expiration is in terms of date, so
servlet API must translate the maxAge property of cookie into datetime.
""""""""""""""""""""""""""""""""""""""""""
expires=DATE
The expires attribute specifies a date string that defines the valid life
time of that cookie. Once the expiration date has
been reached, the cookie will no longer be stored or given out.
The date string is formatted as:
Wdy, DD-Mon-YYYY HH:MM:SS GMT
This is based on RFC 822, RFC 850, RFC 1036, and RFC 1123, with the
variations that the only legal time zone is GMT and
the separators between the elements of the date must be dashes.
expires is an optional attribute. If not specified, the cookie will
expire when the user's session ends.
"""""""""""""""""""""""""""""""""""""""""""""""
It seems that the maxAge is translated into datetime, then the client checks it
for the cookie.
>
>
> 2. Where on the client PC does cookie stored(on windows , and on unix
> also). I cannot see anything created in c:\windows\cookies directory when
> the servlet sends the cookie. Is the cookie getting stored on the client in
> file sk.txt in JWS root directory ? I have JWS installed, but on actual
> clients in which directory servlet cookies will be stored(should be in
> browser specific cookie directory I think !)
>
If max Age is positive and does not expires when the session ends the browser
stores cookie into a file. I can find in my Netscape profile directory the file
cookies.txt where I suppose the cookies are stored.
My advice: read Netscape spec for cookies (it is really not long) and try to
get as more understanding as possible. The rest must come with experience and
experiments.
sincerely Olek
>
> -mukul
>
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