JSP/Servlet/JSF: when the session is created

Source: Internet
Author: User

A common misunderstanding is that the session is created when a client accesses it. However, the fact is that the session is created until a server program calls HttpServletRequest. the getSession (true) Statement is created only when it is not displayed, when the JSP file is compiled into Servlet, the following statement is automatically added: HttpSession session = HttpServletRequest. getSession (true); this is also the source of the implicit session Object in JSP.

Because the session consumes memory resources, if you do not plan to use the session, you should disable it in all JSPs.

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