Example servlet showing request headers
/* * Copyright 2004 The Apache Software Foundation * * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. * You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. */ /* $Id: CookieExample.java,v 1.3 2004/03/18 16:40:33 jfarcand Exp $ * */ import java.io.*; import java.text.*; import java.util.*; import javax.servlet.*; import javax.servlet.http.*; /** * Example servlet showing request headers * * @author James Duncan Davidson <[email protected] > */ public class CookieExample extends HttpServlet { ResourceBundle rb = ResourceBundle.getBundle ( "LocalStrings" ) ; public void doGet ( HttpServletRequest request, HttpServletResponse response ) throws IOException, ServletException { response.setContentType ( "text/html" ) ; PrintWriter out = response.getWriter () ; out.println ( "<html>" ) ; out.println ( "<body bgcolor=\"white\">" ) ; out.println ( "<head>" ) ; String title = rb.getString ( "cookies.title" ) ; out.println ( "<title>" + title + "</title>" ) ; out.println ( "</head>" ) ; out.println ( "<body>" ) ; // relative links // XXX // making these absolute till we work out the // addition of a PathInfo issue out.println ( "<a href=\"../cookies.html\">" ) ; out.println ( "<img src=\"../images/code.gif\" height=24 " + "width=24 align=right border=0 alt=\"view code\"></a>" ) ; out.println ( "<a href=\"../index.html\">" ) ; out.println ( "<img src=\"../images/return.gif\" height=24 " + "width=24 align=right border=0 alt=\"return\"></a>" ) ; out.println ( "<h3>" + title + "</h3>" ) ; Cookie [] cookies = request.getCookies () ; if (( cookies != null ) && ( cookies.length > 0 )) { out.println ( rb.getString ( "cookies.cookies" ) + "<br>" ) ; for ( int i = 0 ; i < cookies.length; i++ ) { Cookie cookie = cookies [ i ] ; out.print ( "Cookie Name: " + HTMLFilter.filter ( cookie.getName ()) + "<br>" ) ; out.println ( " Cookie Value: " + HTMLFilter.filter ( cookie.getValue ()) + "<br><br>" ) ; } } else { out.println ( rb.getString ( "cookies.no-cookies" )) ; } String cookieName = request.getParameter ( "cookiename" ) ; String cookieValue = request.getParameter ( "cookievalue" ) ; if ( cookieName != null && cookieValue != null ) { Cookie cookie = new Cookie ( cookieName, cookieValue ) ; response.addCookie ( cookie ) ; out.println ( "<P>" ) ; out.println ( rb.getString ( "cookies.set" ) + "<br>" ) ; out.print ( rb.getString ( "cookies.name" ) + " " + HTMLFilter.filter ( cookieName ) + "<br>" ) ; out.print ( rb.getString ( "cookies.value" ) + " " + HTMLFilter.filter ( cookieValue )) ; } out.println ( "<P>" ) ; out.println ( rb.getString ( "cookies.make-cookie" ) + "<br>" ) ; out.print ( "<form action=\"" ) ; out.println ( "CookieExample\" method=POST>" ) ; out.print ( rb.getString ( "cookies.name" ) + " " ) ; out.println ( "<input type=text length=20 name=cookiename><br>" ) ; out.print ( rb.getString ( "cookies.value" ) + " " ) ; out.println ( "<input type=text length=20 name=cookievalue><br>" ) ; out.println ( "<input type=submit></form>" ) ; out.println ( "</body>" ) ; out.println ( "</html>" ) ; } public void doPost ( HttpServletRequest request, HttpServletResponse response ) throws IOException, ServletException { doGet ( request, response ) ; } }
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