Java Enterprise in a Nutshell, Second Edition

Name

PageContext

Synopsis

The PageContext class provides a set of methods for both container implementers and JSP authors. For page authors, this class allows access to the various attributes within the different JSP namespaces (the page, request and session scopes) via the getAttribute() and setAttribute() methods and the scope constants. PageContext also provides convenience methods for retrieving ServletRequest, ServletResponse, ServletConfig and other servlet related objects, forward() and include() methods for request forwarding, and handlePageException() for processing exceptions through the default error page for the JSP or the container.

public abstract class PageContext {
// Public Constructors
   public PageContext();  
// Public Constants
   public static final String APPLICATION;                       // ="javax.servlet.jsp.jspApplication”
   public static final int APPLICATION_SCOPE;                    // =4
   public static final String CONFIG;                            // ="javax.servlet.jsp.jspConfig”
   public static final String EXCEPTION;                         // ="javax.servlet.jsp.jspException”
   public static final String OUT;                               // ="javax.servlet.jsp.jspOut”
   public static final String PAGE;                              // ="javax.servlet.jsp.jspPage”
   public static final int PAGE_SCOPE;                           // =1
   public static final String PAGECONTEXT;                       // ="javax.servlet.jsp.jspPageContext”
   public static final String REQUEST;                           // ="javax.servlet.jsp.jspRequest”
   public static final int REQUEST_SCOPE;                        // =2
   public static final String RESPONSE;                          // ="javax.servlet.jsp.jspResponse”
   public static final String SESSION;                           // ="javax.servlet.jsp.jspSession” ...