How do I set session timeout in seconds in web.xml?

Question

I have a requirement to set the session timeout of 40 seconds. I know we keep normally to 20 minutes.

But my current application requirement is to keep the session timeout to 40 seconds. The web.xml is taking only integer value as 1 but it is not taking 0.6. Is there any way to write this? We are running our java web application on Apache tomcat server.

So how do I set session timeout in seconds in web.xml?

Answer 1

Using the deployment descriptor, you can only set the timeout in minutes:

<session-config>
    <session-timeout>1</session-timeout>
</session-config>

But using the HttpSession API you can set the session timeout in seconds for a servlet container:

HttpSession session = request.getSession();
session.setMaxInactiveInterval(40);

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Suggested reading: Deployment Descriptor Elements

Answer 2

well in web.xml file you can provide in minutes

<session-config>
    <session-timeout>Minutes</session-timeout>
</session-config>

but you programatically provide values in seconds

HttpSession session = request.getSession();
session.setMaxInactiveInterval(20*60);