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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Frameset//EN""http://www.w3.org/TR/REC-html40/frameset.dtd"><!--NewPage--><HTML><HEAD><!-- Generated by javadoc on Mon Sep 29 15:11:52 PDT 2003 --><TITLE>: Package javax.servlet.http</TITLE><LINK REL ="stylesheet" TYPE="text/css" HREF="../../../stylesheet.css" TITLE="Style"></HEAD><BODY BGCOLOR="white"><!-- ========== START OF NAVBAR ========== --><A NAME="navbar_top"><!-- --></A><TABLE BORDER="0" WIDTH="100%" CELLPADDING="1" CELLSPACING="0"><TR><TD COLSPAN=2 BGCOLOR="#EEEEFF" CLASS="NavBarCell1"><A NAME="navbar_top_firstrow"><!-- --></A><TABLE BORDER="0" CELLPADDING="0" CELLSPACING="3"> <TR ALIGN="center" VALIGN="top"> <TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1"> <A HREF="../../../overview-summary.html"><FONT ID="NavBarFont1"><B>Overview</B></FONT></A> </TD> <TD BGCOLOR="#FFFFFF" CLASS="NavBarCell1Rev"> <FONT CLASS="NavBarFont1Rev"><B>Package</B></FONT> </TD> <TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1"> <FONT CLASS="NavBarFont1">Class</FONT> </TD> <TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1"> <A HREF="package-tree.html"><FONT ID="NavBarFont1"><B>Tree</B></FONT></A> </TD> <TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1"> <A HREF="../../../deprecated-list.html"><FONT ID="NavBarFont1"><B>Deprecated</B></FONT></A> </TD> <TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1"> <A HREF="../../../index-all.html"><FONT ID="NavBarFont1"><B>Index</B></FONT></A> </TD> <TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1"> <A HREF="../../../help-doc.html"><FONT ID="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/package-summary.html"><B>PREV PACKAGE</B></A> NEXT PACKAGE</FONT></TD><TD BGCOLOR="white" CLASS="NavBarCell2"><FONT SIZE="-2"> <A HREF="../../../index.html" TARGET="_top"><B>FRAMES</B></A> <A HREF="package-summary.html" TARGET="_top"><B>NO FRAMES</B></A></FONT></TD></TR></TABLE><!-- =========== END OF NAVBAR =========== --><HR><H2>Package javax.servlet.http</H2>This chapter describes the javax.servlet.http package.<P><B>See: </B><BR> <A HREF="#package_description"><B>Description</B></A><P><TABLE BORDER="1" CELLPADDING="3" CELLSPACING="0" WIDTH="100%"><TR BGCOLOR="#CCCCFF" CLASS="TableHeadingColor"><TD COLSPAN=2><FONT SIZE="+2"><B>Interface Summary</B></FONT></TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD WIDTH="15%"><B><A HREF="HttpServletRequest.html"><I>HttpServletRequest</I></A></B></TD><TD>Extends the <A HREF="../../../javax/servlet/ServletRequest.html"><CODE>ServletRequest</CODE></A> interface to provide request information for HTTP servlets.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD WIDTH="15%"><B><A HREF="HttpServletResponse.html"><I>HttpServletResponse</I></A></B></TD><TD>Extends the <A HREF="../../../javax/servlet/ServletResponse.html"><CODE>ServletResponse</CODE></A> interface to provide HTTP-specific functionality in sending a response.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD WIDTH="15%"><B><A HREF="HttpSession.html"><I>HttpSession</I></A></B></TD><TD>Provides a way to identify a user across more than one page request or visit to a Web site and to store information about that user.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD WIDTH="15%"><B><A HREF="HttpSessionActivationListener.html"><I>HttpSessionActivationListener</I></A></B></TD><TD>Objects that are bound to a session may listen to container events notifying them that sessions will be passivated and that session will be activated.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD WIDTH="15%"><B><A HREF="HttpSessionAttributeListener.html"><I>HttpSessionAttributeListener</I></A></B></TD><TD>This listener interface can be implemented in order to get notifications of changes to the attribute lists of sessions within this web application.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD WIDTH="15%"><B><A HREF="HttpSessionBindingListener.html"><I>HttpSessionBindingListener</I></A></B></TD><TD>Causes an object to be notified when it is bound to or unbound from a session.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD WIDTH="15%"><B><A HREF="HttpSessionContext.html"><I>HttpSessionContext</I></A></B></TD><TD><B>Deprecated.</B> <I>As of Java(tm) Servlet API 2.1 for security reasons, with no replacement.</I></TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD WIDTH="15%"><B><A HREF="HttpSessionListener.html"><I>HttpSessionListener</I></A></B></TD><TD>Implementations of this interface are notified of changes to the list of active sessions in a web application.</TD></TR></TABLE> <P><TABLE BORDER="1" CELLPADDING="3" CELLSPACING="0" WIDTH="100%"><TR BGCOLOR="#CCCCFF" CLASS="TableHeadingColor"><TD COLSPAN=2><FONT SIZE="+2"><B>Class Summary</B></FONT></TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD WIDTH="15%"><B><A HREF="Cookie.html">Cookie</A></B></TD><TD>Creates a cookie, a small amount of information sent by a servlet to a Web browser, saved by the browser, and later sent back to the server.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD WIDTH="15%"><B><A HREF="HttpServlet.html">HttpServlet</A></B></TD><TD>Provides an abstract class to be subclassed to create an HTTP servlet suitable for a Web site.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD WIDTH="15%"><B><A HREF="HttpServletRequestWrapper.html">HttpServletRequestWrapper</A></B></TD><TD>Provides a convenient implementation of the HttpServletRequest interface that can be subclassed by developers wishing to adapt the request to a Servlet.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD WIDTH="15%"><B><A HREF="HttpServletResponseWrapper.html">HttpServletResponseWrapper</A></B></TD><TD>Provides a convenient implementation of the HttpServletResponse interface that can be subclassed by developers wishing to adapt the response from a Servlet.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD WIDTH="15%"><B><A HREF="HttpSessionBindingEvent.html">HttpSessionBindingEvent</A></B></TD><TD>Events of this type are either sent to an object that implements <A HREF="../../../javax/servlet/http/HttpSessionBindingListener.html"><CODE>HttpSessionBindingListener</CODE></A> when it is bound or unbound from a session, or to a <A HREF="../../../javax/servlet/http/HttpSessionAttributeListener.html"><CODE>HttpSessionAttributeListener</CODE></A> that has been configured in the deployment descriptor when any attribute is bound, unbound or replaced in a session.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD WIDTH="15%"><B><A HREF="HttpSessionEvent.html">HttpSessionEvent</A></B></TD><TD>This is the class representing event notifications for changes to sessions within a web application.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD WIDTH="15%"><B><A HREF="HttpUtils.html">HttpUtils</A></B></TD><TD><B>Deprecated.</B> <I>As of Java(tm) Servlet API 2.3.</I></TD></TR></TABLE> <P><A NAME="package_description"><!-- --></A><H2>Package javax.servlet.http Description</H2><P>This chapter describes the javax.servlet.http package. The chapter includes content that is generated automatically from the javadoc embedded in the actual Java classes and interfaces. This allows the creation of a single, authoritative, specification document.<H2 CLASS="A-Head"><A NAME="pgfId-998204"></A>Servlets Using HTTP Protocol</H2><P CLASS="Body"><A NAME="pgfId-998205"></A>The<EM CLASS="Code">javax.servlet.http package</EM>contains a number of classes and interfaces that describe and define the contracts between a servlet class running under the HTTP protocol and the runtime environment provided for an instance of such a class by a conforming servlet container. </P><P CLASS="Body"><A NAME="pgfId-998206"></A>The class<EM CLASS="Filename-Command">HttpServlet</EM>implements the<EM CLASS="Filename-Command">Servlet</EM> interface and provides a base developers will extend to implement servlets for implementing web applications employing the HTTP protocol. In addition to generic Servlet interface methods, the class <EM CLASS="Filename-Command">HttpServlet</EM>implements interfaces providing HTTP functionality.</P><P CLASS="Body"><A NAME="pgfId-998207"></A>The basic<EM CLASS="Filename-Command">Servlet</EM>interface defines a<EM CLASS="Filename-Command">service</EM>method for handling client requests. This method is called for each request that the servlet container routes to an instance of a servlet. </P><P CLASS="Body"><A NAME="pgfId-998197"></A> </P><P><HR><!-- ========== START OF NAVBAR ========== --><A NAME="navbar_bottom"><!-- --></A><TABLE BORDER="0" WIDTH="100%" CELLPADDING="1" CELLSPACING="0"><TR><TD COLSPAN=2 BGCOLOR="#EEEEFF" CLASS="NavBarCell1"><A NAME="navbar_bottom_firstrow"><!-- --></A><TABLE BORDER="0" CELLPADDING="0" CELLSPACING="3"> <TR ALIGN="center" VALIGN="top"> <TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1"> <A HREF="../../../overview-summary.html"><FONT ID="NavBarFont1"><B>Overview</B></FONT></A> </TD> <TD BGCOLOR="#FFFFFF" CLASS="NavBarCell1Rev"> <FONT CLASS="NavBarFont1Rev"><B>Package</B></FONT> </TD> <TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1"> <FONT CLASS="NavBarFont1">Class</FONT> </TD> <TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1"> <A HREF="package-tree.html"><FONT ID="NavBarFont1"><B>Tree</B></FONT></A> </TD> <TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1"> <A HREF="../../../deprecated-list.html"><FONT ID="NavBarFont1"><B>Deprecated</B></FONT></A> </TD> <TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1"> <A HREF="../../../index-all.html"><FONT ID="NavBarFont1"><B>Index</B></FONT></A> </TD> <TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1"> <A HREF="../../../help-doc.html"><FONT ID="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/package-summary.html"><B>PREV PACKAGE</B></A> NEXT PACKAGE</FONT></TD><TD BGCOLOR="white" CLASS="NavBarCell2"><FONT SIZE="-2"> <A HREF="../../../index.html" TARGET="_top"><B>FRAMES</B></A> <A HREF="package-summary.html" TARGET="_top"><B>NO FRAMES</B></A></FONT></TD></TR></TABLE><!-- =========== END OF NAVBAR =========== --><HR></BODY></HTML>?? 快捷鍵說明
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