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/*
* 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: SimpleXSLTServlet.java 470245 2006-11-02 06:34:33Z minchau $
*/
package servlet;
import javax.servlet.*;
import javax.servlet.http.*;
import java.io.*;
import java.net.URL;
import javax.xml.transform.TransformerFactory;
import javax.xml.transform.Transformer;
import javax.xml.transform.Source;
import javax.xml.transform.stream.StreamSource;
import javax.xml.transform.stream.StreamResult;
/*
* This sample applies the todo.xsl stylesheet to the
* todo.xml XML document, and returns the transformation
* output (HTML) to the client browser.
*
* IMPORTANT: For this to work, you must place todo.xsl and todo.xml
* in the servlet root directory for documents.
*
*/
public class SimpleXSLTServlet extends HttpServlet {
/**
* String representing the file separator characters for the System.
*/
public final static String FS = System.getProperty("file.separator");
public void init(ServletConfig config) throws ServletException
{
super.init(config);
}
public void doGet (HttpServletRequest request,
HttpServletResponse response)
throws ServletException, IOException, java.net.MalformedURLException
{
// The servlet returns HTML.
response.setContentType("text/html; charset=UTF-8");
// Output goes in the response stream.
PrintWriter out = response.getWriter();
try
{
TransformerFactory tFactory = TransformerFactory.newInstance();
//get the real path for xml and xsl files.
String ctx = getServletContext().getRealPath("") + FS;
// Get the XML input document and the stylesheet.
Source xmlSource = new StreamSource(new URL("file", "", ctx+"birds.xml").openStream());
Source xslSource = new StreamSource(new URL("file", "", ctx+"birds.xsl").openStream());
// Generate the transformer.
Transformer transformer = tFactory.newTransformer(xslSource);
// Perform the transformation, sending the output to the response.
transformer.transform(xmlSource, new StreamResult(out));
}
catch (Exception e)
{
out.write(e.getMessage());
e.printStackTrace(out);
}
out.close();
}
}
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