| /* |
| * Copyright (c) 1997, 2018 Oracle and/or its affiliates. All rights reserved. |
| * |
| * This program and the accompanying materials are made available under the |
| * terms of the Eclipse Public License v. 2.0, which is available at |
| * http://www.eclipse.org/legal/epl-2.0. |
| * |
| * This Source Code may also be made available under the following Secondary |
| * Licenses when the conditions for such availability set forth in the |
| * Eclipse Public License v. 2.0 are satisfied: GNU General Public License, |
| * version 2 with the GNU Classpath Exception, which is available at |
| * https://www.gnu.org/software/classpath/license.html. |
| * |
| * SPDX-License-Identifier: EPL-2.0 OR GPL-2.0 WITH Classpath-exception-2.0 |
| */ |
| |
| package osgitest; |
| |
| import java.io.IOException; |
| import java.io.PrintWriter; |
| import java.util.Enumeration; |
| import javax.servlet.ServletException; |
| import javax.servlet.http.HttpServlet; |
| import javax.servlet.http.HttpServletRequest; |
| import javax.servlet.http.HttpServletResponse; |
| |
| |
| /** |
| * Simple servlet to validate that the Hello, World example can |
| * execute servlets. In the web application deployment descriptor, |
| * this servlet must be mapped to correspond to the link in the |
| * "index.html" file. |
| * |
| * @author Craig R. McClanahan <Craig.McClanahan@eng.sun.com> |
| */ |
| |
| public final class HelloServlet extends HttpServlet { |
| |
| |
| /** |
| * Respond to a GET request for the content produced by |
| * this servlet. |
| * |
| * @param request The servlet request we are processing |
| * @param response The servlet response we are producing |
| * |
| * @exception IOException if an input/output error occurs |
| * @exception ServletException if a servlet error occurs |
| */ |
| public void doGet(HttpServletRequest request, |
| HttpServletResponse response) |
| throws IOException, ServletException { |
| |
| System.out.println("Servlet processing do get.."); |
| |
| response.setContentType("text/html"); |
| PrintWriter writer = response.getWriter(); |
| |
| writer.println("<html>"); |
| writer.println("<head>"); |
| writer.println("<title>Sample Application Servlet Page</title>"); |
| writer.println("</head>"); |
| writer.println("<body bgcolor=white>"); |
| |
| writer.println("<table border=\"0\">"); |
| writer.println("<tr>"); |
| writer.println("<td>"); |
| //writer.println("<img src=\"images/tomcat.gif\">"); |
| writer.println("</td>"); |
| writer.println("<td>"); |
| writer.println("<h1>Sample Application Servlet</h1>"); |
| writer.println("This is the output of a servlet that is part of"); |
| writer.println("the Hello, World application. It displays the"); |
| writer.println("request headers from the request we are currently"); |
| writer.println("processing."); |
| writer.println("</td>"); |
| writer.println("</tr>"); |
| writer.println("</table>"); |
| |
| writer.println("<table border=\"0\" width=\"100%\">"); |
| Enumeration names = request.getHeaderNames(); |
| while (names.hasMoreElements()) { |
| String name = (String) names.nextElement(); |
| writer.println("<tr>"); |
| writer.println(" <th align=\"right\">" + name + ":</th>"); |
| writer.println(" <td>" + request.getHeader(name) + "</td>"); |
| writer.println("</tr>"); |
| } |
| writer.println("</table>"); |
| |
| writer.println("</body>"); |
| writer.println("</html>"); |
| |
| } |
| |
| |
| } |
| |
