httpservlet.html

j2ee帮助文档软件设计/软件工程 文件格式

                                DELETE request
<DD><CODE><A HREF="../../../javax/servlet/ServletException.html" title="class in javax.servlet">ServletException</A></CODE> - if the request for the
                                        DELETE cannot be handled</DL>
</DD>
</DL>
<HR>

<A NAME="doOptions(javax.servlet.http.HttpServletRequest, javax.servlet.http.HttpServletResponse)"><!-- --></A><H3>
doOptions</H3>
<PRE>
protected void <B>doOptions</B>(<A HREF="../../../javax/servlet/http/HttpServletRequest.html" title="interface in javax.servlet.http">HttpServletRequest</A>&nbsp;req,
                         <A HREF="../../../javax/servlet/http/HttpServletResponse.html" title="interface in javax.servlet.http">HttpServletResponse</A>&nbsp;resp)
                  throws <A HREF="../../../javax/servlet/ServletException.html" title="class in javax.servlet">ServletException</A>,
                         <A HREF="http://java.sun.com/j2se/1.5/docs/api/java/io/IOException.html" title="class or interface in java.io">IOException</A></PRE>
<DL>
<DD>Called by the server (via the <code>service</code> method)
 to allow a servlet to handle a OPTIONS request.

 The OPTIONS request determines which HTTP methods 
 the server supports and
 returns an appropriate header. For example, if a servlet
 overrides <code>doGet</code>, this method returns the
 following header:

 <p><code>Allow: GET, HEAD, TRACE, OPTIONS</code>

 <p>There's no need to override this method unless the
 servlet implements new HTTP methods, beyond those 
 implemented by HTTP 1.1.
<P>
<DD><DL>
</DL>
</DD>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>req</CODE> - the <A HREF="../../../javax/servlet/http/HttpServletRequest.html" title="interface in javax.servlet.http"><CODE>HttpServletRequest</CODE></A> object that
                        contains the request the client made of
                        the servlet<DD><CODE>resp</CODE> - the <A HREF="../../../javax/servlet/http/HttpServletResponse.html" title="interface in javax.servlet.http"><CODE>HttpServletResponse</CODE></A> object that
                        contains the response the servlet returns
                        to the client
<DT><B>Throws:</B>
<DD><CODE><A HREF="http://java.sun.com/j2se/1.5/docs/api/java/io/IOException.html" title="class or interface in java.io">IOException</A></CODE> - if an input or output error occurs
                                while the servlet is handling the
                                OPTIONS request
<DD><CODE><A HREF="../../../javax/servlet/ServletException.html" title="class in javax.servlet">ServletException</A></CODE> - if the request for the
                                        OPTIONS cannot be handled</DL>
</DD>
</DL>
<HR>

<A NAME="doTrace(javax.servlet.http.HttpServletRequest, javax.servlet.http.HttpServletResponse)"><!-- --></A><H3>
doTrace</H3>
<PRE>
protected void <B>doTrace</B>(<A HREF="../../../javax/servlet/http/HttpServletRequest.html" title="interface in javax.servlet.http">HttpServletRequest</A>&nbsp;req,
                       <A HREF="../../../javax/servlet/http/HttpServletResponse.html" title="interface in javax.servlet.http">HttpServletResponse</A>&nbsp;resp)
                throws <A HREF="../../../javax/servlet/ServletException.html" title="class in javax.servlet">ServletException</A>,
                       <A HREF="http://java.sun.com/j2se/1.5/docs/api/java/io/IOException.html" title="class or interface in java.io">IOException</A></PRE>
<DL>
<DD>Called by the server (via the <code>service</code> method)
 to allow a servlet to handle a TRACE request.

 A TRACE returns the headers sent with the TRACE
 request to the client, so that they can be used in
 debugging. There's no need to override this method.
<P>
<DD><DL>
</DL>
</DD>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>req</CODE> - the <A HREF="../../../javax/servlet/http/HttpServletRequest.html" title="interface in javax.servlet.http"><CODE>HttpServletRequest</CODE></A> object that
                        contains the request the client made of
                        the servlet<DD><CODE>resp</CODE> - the <A HREF="../../../javax/servlet/http/HttpServletResponse.html" title="interface in javax.servlet.http"><CODE>HttpServletResponse</CODE></A> object that
                        contains the response the servlet returns
                        to the client
<DT><B>Throws:</B>
<DD><CODE><A HREF="http://java.sun.com/j2se/1.5/docs/api/java/io/IOException.html" title="class or interface in java.io">IOException</A></CODE> - if an input or output error occurs
                                while the servlet is handling the
                                TRACE request
<DD><CODE><A HREF="../../../javax/servlet/ServletException.html" title="class in javax.servlet">ServletException</A></CODE> - if the request for the
                                        TRACE cannot be handled</DL>
</DD>
</DL>
<HR>

<A NAME="service(javax.servlet.http.HttpServletRequest, javax.servlet.http.HttpServletResponse)"><!-- --></A><H3>
service</H3>
<PRE>
protected void <B>service</B>(<A HREF="../../../javax/servlet/http/HttpServletRequest.html" title="interface in javax.servlet.http">HttpServletRequest</A>&nbsp;req,
                       <A HREF="../../../javax/servlet/http/HttpServletResponse.html" title="interface in javax.servlet.http">HttpServletResponse</A>&nbsp;resp)
                throws <A HREF="../../../javax/servlet/ServletException.html" title="class in javax.servlet">ServletException</A>,
                       <A HREF="http://java.sun.com/j2se/1.5/docs/api/java/io/IOException.html" title="class or interface in java.io">IOException</A></PRE>
<DL>
<DD>Receives standard HTTP requests from the public
 <code>service</code> method and dispatches
 them to the <code>do</code><i>XXX</i> methods defined in 
 this class. This method is an HTTP-specific version of the 
 <A HREF="../../../javax/servlet/Servlet.html#service(javax.servlet.ServletRequest, javax.servlet.ServletResponse)"><CODE>Servlet.service(javax.servlet.ServletRequest, javax.servlet.ServletResponse)</CODE></A> method. There's no
 need to override this method.
<P>
<DD><DL>
</DL>
</DD>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>req</CODE> - the <A HREF="../../../javax/servlet/http/HttpServletRequest.html" title="interface in javax.servlet.http"><CODE>HttpServletRequest</CODE></A> object that
                        contains the request the client made of
                        the servlet<DD><CODE>resp</CODE> - the <A HREF="../../../javax/servlet/http/HttpServletResponse.html" title="interface in javax.servlet.http"><CODE>HttpServletResponse</CODE></A> object that
                        contains the response the servlet returns
                        to the client
<DT><B>Throws:</B>
<DD><CODE><A HREF="http://java.sun.com/j2se/1.5/docs/api/java/io/IOException.html" title="class or interface in java.io">IOException</A></CODE> - if an input or output error occurs
                                while the servlet is handling the
                                HTTP request
<DD><CODE><A HREF="../../../javax/servlet/ServletException.html" title="class in javax.servlet">ServletException</A></CODE> - if the HTTP request
                                        cannot be handled<DT><B>See Also:</B><DD><A HREF="../../../javax/servlet/Servlet.html#service(javax.servlet.ServletRequest, javax.servlet.ServletResponse)"><CODE>Servlet.service(javax.servlet.ServletRequest, javax.servlet.ServletResponse)</CODE></A></DL>
</DD>
</DL>
<HR>

<A NAME="service(javax.servlet.ServletRequest, javax.servlet.ServletResponse)"><!-- --></A><H3>
service</H3>
<PRE>
public void <B>service</B>(<A HREF="../../../javax/servlet/ServletRequest.html" title="interface in javax.servlet">ServletRequest</A>&nbsp;req,
                    <A HREF="../../../javax/servlet/ServletResponse.html" title="interface in javax.servlet">ServletResponse</A>&nbsp;res)
             throws <A HREF="../../../javax/servlet/ServletException.html" title="class in javax.servlet">ServletException</A>,
                    <A HREF="http://java.sun.com/j2se/1.5/docs/api/java/io/IOException.html" title="class or interface in java.io">IOException</A></PRE>
<DL>
<DD>Dispatches client requests to the protected
 <code>service</code> method. There's no need to
 override this method.
<P>
<DD><DL>
<DT><B>Specified by:</B><DD><CODE><A HREF="../../../javax/servlet/Servlet.html#service(javax.servlet.ServletRequest, javax.servlet.ServletResponse)">service</A></CODE> in interface <CODE><A HREF="../../../javax/servlet/Servlet.html" title="interface in javax.servlet">Servlet</A></CODE><DT><B>Specified by:</B><DD><CODE><A HREF="../../../javax/servlet/GenericServlet.html#service(javax.servlet.ServletRequest, javax.servlet.ServletResponse)">service</A></CODE> in class <CODE><A HREF="../../../javax/servlet/GenericServlet.html" title="class in javax.servlet">GenericServlet</A></CODE></DL>
</DD>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>req</CODE> - the <A HREF="../../../javax/servlet/http/HttpServletRequest.html" title="interface in javax.servlet.http"><CODE>HttpServletRequest</CODE></A> object that
                        contains the request the client made of
                        the servlet<DD><CODE>res</CODE> - the <A HREF="../../../javax/servlet/http/HttpServletResponse.html" title="interface in javax.servlet.http"><CODE>HttpServletResponse</CODE></A> object that
                        contains the response the servlet returns
                        to the client
<DT><B>Throws:</B>
<DD><CODE><A HREF="http://java.sun.com/j2se/1.5/docs/api/java/io/IOException.html" title="class or interface in java.io">IOException</A></CODE> - if an input or output error occurs
                                while the servlet is handling the
                                HTTP request
<DD><CODE><A HREF="../../../javax/servlet/ServletException.html" title="class in javax.servlet">ServletException</A></CODE> - if the HTTP request cannot
                                        be handled<DT><B>See Also:</B><DD><A HREF="../../../javax/servlet/Servlet.html#service(javax.servlet.ServletRequest, javax.servlet.ServletResponse)"><CODE>Servlet.service(javax.servlet.ServletRequest, javax.servlet.ServletResponse)</CODE></A></DL>
</DD>
</DL>
<!-- ========= END OF CLASS DATA ========= -->
<HR>


<!-- ======= START OF BOTTOM NAVBAR ====== -->
<A NAME="navbar_bottom"><!-- --></A>
<A HREF="#skip-navbar_bottom" 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_bottom_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>&nbsp;</TD>
  <TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1">    <A HREF="package-summary.html"><FONT CLASS="NavBarFont1"><B>Package</B></FONT></A>&nbsp;</TD>
  <TD BGCOLOR="#FFFFFF" CLASS="NavBarCell1Rev"> &nbsp;<FONT CLASS="NavBarFont1Rev"><B>Class</B></FONT>&nbsp;</TD>
  <TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1">    <A HREF="package-tree.html"><FONT CLASS="NavBarFont1"><B>Tree</B></FONT></A>&nbsp;</TD>
  <TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1">    <A HREF="../../../deprecated-list.html"><FONT CLASS="NavBarFont1"><B>Deprecated</B></FONT></A>&nbsp;</TD>
  <TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1">    <A HREF="../../../index-all.html"><FONT CLASS="NavBarFont1"><B>Index</B></FONT></A>&nbsp;</TD>
  <TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1">    <A HREF="../../../help-doc.html"><FONT CLASS="NavBarFont1"><B>Help</B></FONT></A>&nbsp;</TD>
  </TR>
</TABLE>
</TD>
<TD ALIGN="right" VALIGN="top" ROWSPAN=3><EM>
</EM>
</TD>
</TR>

<TR>
<TD BGCOLOR="white" CLASS="NavBarCell2"><FONT SIZE="-2">
&nbsp;<A HREF="../../../javax/servlet/http/Cookie.html" title="class in javax.servlet.http"><B>PREV CLASS</B></A>&nbsp;
&nbsp;<A HREF="../../../javax/servlet/http/HttpServletRequest.html" title="interface in javax.servlet.http"><B>NEXT CLASS</B></A></FONT></TD>
<TD BGCOLOR="white" CLASS="NavBarCell2"><FONT SIZE="-2">
  <A HREF="../../../index.html?javax/servlet/http/HttpServlet.html" target="_top"><B>FRAMES</B></A>  &nbsp;
&nbsp;<A HREF="HttpServlet.html" target="_top"><B>NO FRAMES</B></A>  &nbsp;
&nbsp;<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:&nbsp;NESTED&nbsp;|&nbsp;FIELD&nbsp;|&nbsp;<A HREF="#constructor_summary">CONSTR</A>&nbsp;|&nbsp;<A HREF="#method_summary">METHOD</A></FONT></TD>
<TD VALIGN="top" CLASS="NavBarCell3"><FONT SIZE="-2">
DETAIL:&nbsp;FIELD&nbsp;|&nbsp;<A HREF="#constructor_detail">CONSTR</A>&nbsp;|&nbsp;<A HREF="#method_detail">METHOD</A></FONT></TD>
</TR>
</TABLE>
<A NAME="skip-navbar_bottom"></A>
<!-- ======== END OF BOTTOM NAVBAR ======= -->

<HR>
<font size="-1"><a href="http://java.sun.com/webapps/bugreport">Submit a bug or feature</a> <p>Copyright 2007 Sun Microsystems, Inc. All rights reserved. Use is subject to <a href="../legal/license.html" target="_top">license terms.</a></font>
</BODY>
</HTML>