This object contains page scope variables. In particular, beans declared with the jsp:useBean page scope are stored in the pageContext attribute.

<% pageContext.attribute.a = 1; pageContext.attribute.b = 2; for (var name in pageContext.attribute) out.writeln(name, ": ", pageContext.attribute[name]); %> a: 1 b: 2

Returns the JspWriter for this response. This is the same as the JSP 'out' implicit variable. JspWriter has the same properties and methods as output streams.

<% pageContext.out.writeln("Hello, world"); %> Hello, world

Returns the page's session.

Welcome back. You've visited <%= pageContext.session.value++ %> times

Returns the page's application object. Along with application variables, the application object lets scripts dynamically include files and forward results.

You are visistor <%= pageContext.servletContext.attribute++ %>

Returns the page's generated servlet.

Note: This is not the JSP engine's servlet, but the servlet generated for the particular JSP page.

<%@ page info='Special Servlet' %> <%= pageContext.servlet.servletInfo %gt; Special Servlet

Returns the page's request object. The request object contains information from the HTTP request, such as form data and allows forwarding pages to pass along attributes.

<% var req = pageContext.servletRequest for (var key in req.form) out.writeln(key, ": ", req.form[key]); %> name: George Washington honesty: mythical

Returns the page's response object. The response object lets application set response headers and status codes. In general, JSP applications will write to the 'out' object instead of using the response object directly.

<% var res = pageContext.servletResponse res.header["Expires"] = new Date().toString() %>

For error pages, returns the thrown exception.

<% response.setStatus(500); out.writeln("Exception: ", pageContext.exception) %>

Includes the dynamic contents of the page at href. href is relative to the current page and its root is the application root.

include is the proper way to include JSP generated contents in the current page.

Includes the dynamic contents of the page at href. href is relative to the current page and its root is the application root.

forward cannot be called after data has returned to the browser. Because of JSP's 8k buffer, most applications can ignore this limitation.