December 2000
Intermediate to advanced
574 pages
17h 3m
English
Content preview from Java Server Pages
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Name
pageContext
Synopsis
|
Variable Name: |
pageContext |
|
Class Name: |
javax.servlet.jsp.PageContext |
|
Extends: |
None |
|
Implements: |
None |
|
Implemented by: |
A concrete subclass of this abstract class is provided as an internal container-dependent class |
|
JSP Page Type: |
Available in both regular JSP pages and error pages |
Description
A PageContext
instance
provides access to all the JSP scopes and several page attributes,
and offers a layer above the container implementation details to
enable a container to generate portable JSP implementation classes.
The JSP page scope is represented by PageContext
attributes. A unique instance of this object is created by the web
container and assigned to the pageContext variable
for each request.
Class Summary
public abstract class PageContext { // Constants public static final int APPLICATION_SCOPE; public static final int PAGE_SCOPE; public static final int REQUEST_SCOPE; public static final int SESSION_SCOPE; // Constructor public PageContext( ); // Methods public abstract java.lang.Object findAttribute(String name); public abstract void forward(String relativeUrlPath) throws ServletException, java.io.IOException; public abstract Object getAttribute(String name); public abstract Object getAttribute(String name, int scope); public abstract java.util.Enumeration getAttributeNamesInScope(int scope); public abstract int getAttributesScope(String name); public abstract Exception getException( ); public abstract JspWriter getOut( ); public abstract Object ...Become an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month,
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O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.Julian F.
I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.Amir M.
I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.