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PageContext and servletContext
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Ranadhir Nag
Ranch Hand
Joined: Mar 09, 2006
Posts: 137
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I realize while developing tags that we use the PageContext to retrieve the ServletContext. I also understand that is one servletcontext per "web application" per Java Virtual Machine,and that it is used by a servlet to communicate with its container. But,what is the relevance and scope of PageContext? But where exactly in the lifecycle of a session does the pageContext fit in - at what exact stage is it created,its utility and when is the current data inside it populated?
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Bear Bibeault
Author and ninkuma
Marshal
Joined: Jan 10, 2002
Posts: 56157
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Moved to the JSP forum.
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[Smart Questions] [JSP FAQ] [Books by Bear] [Bear's FrontMan] [About Bear]
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Bear Bibeault
Author and ninkuma
Marshal
Joined: Jan 10, 2002
Posts: 56157
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Page context is the "lowest" of the context scopes. Its lifetime is limited to a single JSP page.
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Ranadhir Nag
Ranch Hand
Joined: Mar 09, 2006
Posts: 137
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Thanks.THen apart from retrieving the servletcontext,what are the other typical interactions a page will have or need to have with its pagecontext?I do not find much documentation on its interactions with JSP?
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geeta lalchandani
Ranch Hand
Joined: Jun 07, 2005
Posts: 118
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pageContext is normally used in Custom Tags.
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Stefan Evans
Bartender
Joined: Jul 06, 2005
Posts: 1002
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Take a look at the methods described in pageContext. API link That is what it can do in a JSP page. What I mainly use it for is to get/set attributes for the page.
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subject: PageContext and servletContext
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