Thanx Alex for the instant reply.I will catch U later
Daison
----- Original Message -----
From: Alex Smith <[EMAIL PROTECTED]>
To: <[EMAIL PROTECTED]>
Sent: Tuesday, August 31, 1999 9:04 PM
Subject: Re: check whether session is active or not.
> 1. This is a shortcoming of Servlet specification. There's no simple way
to
> check if the session is valid without resorting to calling one of
> HttpSession's methods that throw IllegalStateException if the session is
no
> longer valid. You can do this
>
> try {
> session.getMaxInactiveInterval();
> }
> catch (IllegalStateException) {
> // session is no longer valid
> }
>
> or
>
> register a listener with the session and have it modify a state table
> (hashtable, database table, etc) based on the session id. When the session
> is invalidated, an entry with a particular session id in the state table
is
> marked as invalid. All clients that require information about a particular
> session based on the id will need to do a lookup in the state table.
>
> 2. Use your favorite encoding. Base64 is a good choice.
>
> 3. You have no control over browser's cache. Instead, use proper HTTP
header
> values and application logic to deal with caching.
>
>
> >From: Daison Jose <[EMAIL PROTECTED]>
> >Subject: check whether session is active or not.
> >Date: Tue, 31 Aug 1999 20:03:20 +0530
> >
> >Hi all,
> >
> >1) I am havig some problem with session Id.I am having all the session id
> >of all users who have logged in.I want to check
> >using session id whether that session is alive or not.
> >
> >eg sessid.isalive() something like.
> >
> >
> >2) Can U tell me how to encrypt the URL from the client when a request
> >comes
> >
> > eg /servlet/firstservlet/?name="dais"&value="pawd"
> >
> >I dont want the user to see this infn .How to do it.
> >
> >3) Is there any way to clear the cache from any browser.
> >
> >Thanks in advance
> >Daison
> >
>
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