Javaserver Pages Syntax Page 9
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9Implicit Objects for EL
Type
Description
Expressions
pageContext
javax.servlet.jsp.PageContext
The context for the JSP page. Provides access to various objects, including servletContext, session, request, and
response.
pageScope
java.util.Map
Maps page-scoped variable names to their values.
requestScope
java.util.Map
Maps request-scoped variable names to their values.
sessionScope
java.util.Map
Maps session-scoped variable names to their values.
applicationScope
java.util.Map
Maps application-scoped variable names to their values.
java.util.Map
Maps a request parameter to a single String parameter value (obtained by calling
param
ServletReqwuest.getParameter(String name)).
paramValues
java.util.Map
Maps a request parameter name to an array of String values for that parameter name (obtained by calling
ServletRequest.getParameterValues(String name)).
header
java.util.Map
Maps a request header name to a single String header value (obtained by calling ServletRequest.getHeader(String
name)).
headerValues
java.util.Map
Maps a request header name to an array of String values for that header (obtained by calling
ServletRequest.getHeaders(String)).
java.util.Map
Maps a cookie name to a single Cookie object. Cookies are retrieved according to the semantics of
coookie
HttpServletRequest.getCookies(). If the same name is shared by multiple cookies, an implementation must use the
first one encountered in the array of Cookie objects returned by the getCookies() method. However, the ordering of
cookies is currently unsspecified in the Servlet specification.
java.util.Map
Maps a context initialization parameter name to a String parameter value (obtained by calling
initParam
ServletContext.getInitparameter(String name)).
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