/*
* $Id$
*
* This code is part of the 'iText Tutorial'.
* You can find the complete tutorial at the following address:
* http://itextdocs.lowagie.com/tutorial/
*
* This code is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
*
* itext-questions@lists.sourceforge.net
*/
package com.lowagie.examples.general.webapp;
import java.io.IOException;
import java.util.Date;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import com.lowagie.text.Document;
import com.lowagie.text.DocumentException;
import com.lowagie.text.Paragraph;
import com.lowagie.text.html.HtmlWriter;
import com.lowagie.text.pdf.PdfWriter;
import com.lowagie.text.rtf.RtfWriter2;
/**
* Hello World example as a Servlet.
*
* @author blowagie
*/
public class HelloWorldServlet extends HttpServlet {
private static final long serialVersionUID = -6033026500372479591L;
/**
* Returns a PDF, RTF or HTML document.
*
* @see javax.servlet.http.HttpServlet#doGet(javax.servlet.http.HttpServletRequest, javax.servlet.http.HttpServletResponse)
*/
public void doGet (HttpServletRequest request, HttpServletResponse response)
throws IOException, ServletException {
// we retrieve the presentationtype
String presentationtype = request.getParameter("presentationtype");
// step 1
Document document = new Document();
try {
// step 2: we set the ContentType and create an instance of the corresponding Writer
if ("pdf".equals(presentationtype)) {
response.setContentType("application/pdf");
PdfWriter.getInstance(document, response.getOutputStream());
}
else if ("html".equals(presentationtype)) {
response.setContentType("text/html");
HtmlWriter.getInstance(document, response.getOutputStream());
}
else if ("rtf".equals(presentationtype)) {
response.setContentType("text/rtf");
RtfWriter2.getInstance(document, response.getOutputStream());
}
else {
response.sendRedirect("http://itextdocs.lowagie.com/tutorial/general/webapp/index.html#HelloWorld");
}
// step 3
document.open();
// step 4
document.add(new Paragraph("Hello World"));
document.add(new Paragraph(new Date().toString()));
}
catch(DocumentException de) {
de.printStackTrace();
System.err.println("document: " + de.getMessage());
}
// step 5: we close the document (the outputstream is also closed internally)
document.close();
}
}