| /* |
| * Licensed to the Apache Software Foundation (ASF) under one |
| * or more contributor license agreements. See the NOTICE file |
| * distributed with this work for additional information |
| * regarding copyright ownership. The ASF licenses this file |
| * to you 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. |
| */ |
| /* |
| * $Id$ |
| */ |
| |
| /* |
| Simple Servlet Example using a stylesheet parameter |
| */ |
| package servlet; |
| // Imported TraX classes |
| import javax.xml.transform.TransformerFactory; |
| import javax.xml.transform.Transformer; |
| import javax.xml.transform.stream.StreamSource; |
| import javax.xml.transform.stream.StreamResult; |
| import javax.xml.transform.TransformerException; |
| import javax.xml.transform.TransformerConfigurationException; |
| |
| // Imported SAX classes |
| import org.xml.sax.SAXException; |
| |
| // Imported java.io and javax.servlet classes |
| import java.io.*; |
| import javax.servlet.*; |
| import javax.servlet.http.*; |
| |
| public class UseStylesheetParamServlet extends HttpServlet { |
| |
| |
| /** |
| * String representing the file separator characters for the System. |
| */ |
| public final static String FS = System.getProperty("file.separator"); |
| |
| PrintWriter out; |
| String xslFile, xmlFile, paramValue; |
| public void doGet(HttpServletRequest req, |
| HttpServletResponse res) |
| throws ServletException, IOException { |
| try { |
| res.setContentType("text/html; charset=UTF-8"); |
| out = res.getWriter(); |
| |
| paramValue = req.getParameter("PVAL"); |
| xmlFile = req.getParameter("XML"); |
| xslFile = req.getParameter("XSL"); |
| if (paramValue == null) { |
| out.println( |
| "<h1>No input for paramValue</h1>"); |
| return; |
| } |
| if ( xmlFile == null) { |
| out.println( |
| "<h1>No input for xmlFile</h1>"); |
| return; |
| } |
| if ( xslFile == null) { |
| out.println( |
| "<h1>No input for xslFile</h1>"); |
| return; |
| } |
| |
| // get the real path for xml and xsl files; |
| String ctx = getServletContext().getRealPath("") + FS; |
| xslFile = ctx + xslFile; |
| xmlFile = ctx + xmlFile; |
| |
| TransformerFactory tFactory = |
| TransformerFactory.newInstance(); |
| Transformer transformer = |
| tFactory.newTransformer(new StreamSource(xslFile)); |
| |
| // Set the stylesheet parameter (named param1). |
| transformer.setParameter("param1", paramValue); |
| // Perform the transformation. |
| transformer.transform(new StreamSource(xmlFile), |
| new StreamResult(out)); |
| } |
| catch (IOException e) { |
| e.printStackTrace(); |
| System.exit(-1); |
| } |
| catch (TransformerException e) { |
| e.printStackTrace(out); |
| return; |
| } |
| } |
| } |