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some about apache tomcat session?

 
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How are setting the session's size and live time in one project?
How the session and memory's relation?
thanks!
 
Author and all-around good cowpoke
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There is a session timeout in the default web.xml that gives timeout in minutes:

You can also set the timeout for any session - see the HttpSession API.
Your only control over session size is the amount of stuff you store in it. If everything saved in a session is Serializable, most servlet engines can save it to disk.
Bill
 
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What is the usage of "Serializable"?Thanks
 
William Brogden
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Serializable is an interface - it doesn't define any methods - it is just used as a label. So if you declare your class as implements Serializable, Java object serialization will attempt to serialize an instance.
 
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