Three ways to set the survival time of Session

The default time of the session is 30 minutes, set it to 0 or the affiliate does not limit the effective time.

1. Set in html

<session-config>     

         <session-timeout> 30 </session-timeout>     

</session-config>  

2.web.xml settings

<session-config>  

     <session-timeout> 15 </session-timeout>  

</session-config>  

3. Set in java code

session.setMaxInactiveInterval( 30 * 60 ); // in seconds   

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