¿Qué es pageContext?
El objeto pageContext se utiliza para representar a toda la página JSP. Este objeto está concebido como un medio para acceder a información sobre la página evitando al mismo tiempo la mayor parte de los detalles de implementación.
¿Qué es un objeto implicito?
Los objetos implícitos son objetos creados por el motor que no necesitan ser declarados para ser usados, sino que se pueden invocar directamente.
¿Qué es request y response Java?
este objeto mantiene datos entre llamadas del mismo usuario. Los objetos request y response son los que se reciben como parámetros en los métodos doPost(HttpServletRequest request, HttpServletResponse response) y doGet(HttpServletRequest request, HttpServletResponse response).
What is pageContext object in JSP?
What is a pageContext Object in JSP? The pageContext object is an instance of a javax.servlet.jsp.PageContext object. The pageContext object is used to represent the entire JSP page. This object is intended as a means to access information about the page while avoiding most of the implementation details.
What is a pageContext instance?
A PageContext instance provides access to all the namespaces associated with a JSP page, provides access to several page attributes, as well as a layer above the implementation details. Implicit objects are added to the pageContext automatically.
What is the purpose of releasepagecontext () method in JSP?
This method shall «reset» the internal state of a PageContext, releasing all internal references, and preparing the PageContext for potential reuse by a later invocation of initialize(). This method is typically called from JspFactory.releasePageContext(). Subclasses shall envelope this method.
What is pageContext public static in Java?
PAGECONTEXT public static final java.lang.String PAGECONTEXT Name used to store this PageContext in it’s own name table. See Also: Constant Field Values REQUEST public static final java.lang.String REQUEST Name used to store ServletRequest in PageContext name table.