Several ways to set session expiration __java

The default duration of session is 30 minutes, and there are three ways to set session expiration:

1. In the server.xml in Tomcat, define:

The Conf/server.xml file in Tomcat can modify the default validity period for all programs on the server, set the unit to milliseconds, and define the code as follows:

<context path= "/test" docbase= "/test"
defaultsessiontimeout= "36000" iswarexpanded= "true"
Iswarvalidated= "false" isinvokerenabled= "true"
Isworkdirpersistent= "false"/>

2. Defined in the Web.xml of the project:

Modify the expiration date in the engineering Web.xml, set the unit to minutes, and define the code as follows:

<session-config>

<session-timeout>60</session-timeout>

</session-config>

3. Set through Java code:

Set the unit to seconds, set to-1 to mean never expire

Session.setmaxinactiveinterval (30*60)