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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"><!--NewPage--><HTML><HEAD><!-- Generated by javadoc (build 1.5.0_14) on Mon Jan 28 05:47:06 PST 2008 --><TITLE>ImplicitObjectELResolver (Java EE 5)</TITLE><META NAME="keywords" CONTENT="javax.servlet.jsp.el.ImplicitObjectELResolver class"><LINK REL ="stylesheet" TYPE="text/css" HREF="../../../../stylesheet.css" TITLE="Style"><SCRIPT type="text/javascript">function windowTitle(){ parent.document.title="ImplicitObjectELResolver (Java EE 5)";}</SCRIPT><NOSCRIPT></NOSCRIPT></HEAD><BODY BGCOLOR="white" onload="windowTitle();"><!-- ========= START OF TOP NAVBAR ======= --><A NAME="navbar_top"><!-- --></A><A HREF="#skip-navbar_top" title="Skip navigation links"></A><TABLE BORDER="0" WIDTH="100%" CELLPADDING="1" CELLSPACING="0" SUMMARY=""><TR><TD COLSPAN=2 BGCOLOR="#EEEEFF" CLASS="NavBarCell1"><A NAME="navbar_top_firstrow"><!-- --></A><TABLE BORDER="0" CELLPADDING="0" CELLSPACING="3" SUMMARY=""> <TR ALIGN="center" VALIGN="top"> <TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1"> <A HREF="../../../../overview-summary.html"><FONT CLASS="NavBarFont1"><B>Overview</B></FONT></A> </TD> <TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1"> <A HREF="package-summary.html"><FONT CLASS="NavBarFont1"><B>Package</B></FONT></A> </TD> <TD BGCOLOR="#FFFFFF" CLASS="NavBarCell1Rev"> <FONT CLASS="NavBarFont1Rev"><B>Class</B></FONT> </TD> <TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1"> <A HREF="package-tree.html"><FONT CLASS="NavBarFont1"><B>Tree</B></FONT></A> </TD> <TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1"> <A HREF="../../../../deprecated-list.html"><FONT CLASS="NavBarFont1"><B>Deprecated</B></FONT></A> </TD> <TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1"> <A HREF="../../../../index-all.html"><FONT CLASS="NavBarFont1"><B>Index</B></FONT></A> </TD> <TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1"> <A HREF="../../../../help-doc.html"><FONT CLASS="NavBarFont1"><B>Help</B></FONT></A> </TD> </TR></TABLE></TD><TD ALIGN="right" VALIGN="top" ROWSPAN=3><EM></EM></TD></TR><TR><TD BGCOLOR="white" CLASS="NavBarCell2"><FONT SIZE="-2"> <A HREF="../../../../javax/servlet/jsp/el/FunctionMapper.html" title="interface in javax.servlet.jsp.el"><B>PREV CLASS</B></A> <A HREF="../../../../javax/servlet/jsp/el/ScopedAttributeELResolver.html" title="class in javax.servlet.jsp.el"><B>NEXT CLASS</B></A></FONT></TD><TD BGCOLOR="white" CLASS="NavBarCell2"><FONT SIZE="-2"> <A HREF="../../../../index.html?javax/servlet/jsp/el/ImplicitObjectELResolver.html" target="_top"><B>FRAMES</B></A> <A HREF="ImplicitObjectELResolver.html" target="_top"><B>NO FRAMES</B></A> <SCRIPT type="text/javascript"> <!-- if(window==top) { document.writeln('<A HREF="../../../../allclasses-noframe.html"><B>All Classes</B></A>'); } //--></SCRIPT><NOSCRIPT> <A HREF="../../../../allclasses-noframe.html"><B>All Classes</B></A></NOSCRIPT></FONT></TD></TR><TR><TD VALIGN="top" CLASS="NavBarCell3"><FONT SIZE="-2"> SUMMARY: NESTED | <A HREF="#fields_inherited_from_class_javax.el.ELResolver">FIELD</A> | <A HREF="#constructor_summary">CONSTR</A> | <A HREF="#method_summary">METHOD</A></FONT></TD><TD VALIGN="top" CLASS="NavBarCell3"><FONT SIZE="-2">DETAIL: FIELD | <A HREF="#constructor_detail">CONSTR</A> | <A HREF="#method_detail">METHOD</A></FONT></TD></TR></TABLE><A NAME="skip-navbar_top"></A><!-- ========= END OF TOP NAVBAR ========= --><HR><!-- ======== START OF CLASS DATA ======== --><H2><FONT SIZE="-1">javax.servlet.jsp.el</FONT><BR>Class ImplicitObjectELResolver</H2><PRE><A HREF="http://java.sun.com/j2se/1.5/docs/api/java/lang/Object.html" title="class or interface in java.lang">java.lang.Object</A> <IMG SRC="../../../../resources/inherit.gif" ALT="extended by "><A HREF="../../../../javax/el/ELResolver.html" title="class in javax.el">javax.el.ELResolver</A> <IMG SRC="../../../../resources/inherit.gif" ALT="extended by "><B>javax.servlet.jsp.el.ImplicitObjectELResolver</B></PRE><HR><DL><DT><PRE>public class <B>ImplicitObjectELResolver</B><DT>extends <A HREF="../../../../javax/el/ELResolver.html" title="class in javax.el">ELResolver</A></DL></PRE><P>Defines variable resolution behavior for the EL implicit objects defined in the JSP specification. <p>The following variables are resolved by this <code>ELResolver</code>, as per the JSP specification: <ul> <li><code>pageContext</code> - the <code>PageContext</code> object.</li> <li><code>pageScope</code> - a <code>Map</code> that maps page-scoped attribute names to their values.</li> <li><code>requestScope</code> - a <code>Map</code> that maps request-scoped attribute names to their values.</li> <li><code>sessionScope</code> - a <code>Map</code> that maps session-scoped attribute names to their values.</li> <li><code>applicationScope</code> - a <code>Map</code> that maps application-scoped attribute names to their values.</li> <li><code>param</code> - a <code>Map</code> that maps parameter names to a single String parameter value (obtained by calling <code>ServletRequest.getParameter(String name)).</li> <li><code>paramValues</code> - a <code>Map</code> that maps parameter names to a <code>String[]</code> of all values for that parameter (obtained by calling <code>ServletRequest.getParameterValues(String name))</code>.</li> <li><code>header</code> - a <code>Map</code> that maps header names to a single String header value (obtained by calling <code>HttpServletRequest.getHeader(String name))</code>.</li> <li><code>headerValues</code> - a <code>Map</code> that maps header names to a <code>String[]</code> of all values for that header (obtained by calling <code>HttpServletRequest.getHeaders(String))</code>.</li> <li><code>cookie</code> - a <code>Map</code> that maps cookie names to a single <code>Cookie</code> object. Cookies are retrieved according to the semantics of <code>HttpServletRequest.getCookies()</code>. If the same name is shared by multiple cookies, an implementation must use the first one encountered in the array of <code>Cookie</code> objects returned by the <code>getCookies()</code> method. However, users of the cookie implicit object must be aware that the ordering of cookies is currently unspecified in the servlet specification.</li> <li><code>initParam</code> - a <code>Map</code> that maps context initialization parameter names to their String parameter value (obtained by calling <code>ServletContext.getInitParameter(String name))</code>.</li> </ul></p><P><P><DL><DT><B>Since:</B></DT> <DD>JSP 2.1</DD><DT><B>See Also:</B><DD><A HREF="../../../../javax/el/ELResolver.html" title="class in javax.el"><CODE>ELResolver</CODE></A></DL><HR><P><!-- =========== FIELD SUMMARY =========== --><A NAME="field_summary"><!-- --></A><TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY=""><TR BGCOLOR="#CCCCFF" CLASS="TableHeadingColor"><TH ALIGN="left" COLSPAN="2"><FONT SIZE="+2"><B>Field Summary</B></FONT></TH></TR></TABLE> <A NAME="fields_inherited_from_class_javax.el.ELResolver"><!-- --></A><TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY=""><TR BGCOLOR="#EEEEFF" CLASS="TableSubHeadingColor"><TH ALIGN="left"><B>Fields inherited from class javax.el.<A HREF="../../../../javax/el/ELResolver.html" title="class in javax.el">ELResolver</A></B></TH></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD><CODE><A HREF="../../../../javax/el/ELResolver.html#RESOLVABLE_AT_DESIGN_TIME">RESOLVABLE_AT_DESIGN_TIME</A>, <A HREF="../../../../javax/el/ELResolver.html#TYPE">TYPE</A></CODE></TD></TR></TABLE> <!-- ======== CONSTRUCTOR SUMMARY ======== --><A NAME="constructor_summary"><!-- --></A><TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY=""><TR BGCOLOR="#CCCCFF" CLASS="TableHeadingColor"><TH ALIGN="left" COLSPAN="2"><FONT SIZE="+2"><B>Constructor Summary</B></FONT></TH></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD><CODE><B><A HREF="../../../../javax/servlet/jsp/el/ImplicitObjectELResolver.html#ImplicitObjectELResolver()">ImplicitObjectELResolver</A></B>()</CODE><BR> </TD></TR></TABLE> <!-- ========== METHOD SUMMARY =========== --><A NAME="method_summary"><!-- --></A><TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY=""><TR BGCOLOR="#CCCCFF" CLASS="TableHeadingColor">⌨️ 快捷键说明
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