Java PDF: Afficher un document PDF dans une servlet

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Java PDF: Afficher un document PDF dans une servlet
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/***** Code de MesExemples.com *******/
/**
 * @(#)PDFServlet.java
 *
 *
 * @author 
 *sakoba(java.mesexemples.com) @version 1.00 2013/5/29
 */
 
  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.itextpdf.text.Document;
  import com.itextpdf.text.DocumentException;
  import com.itextpdf.text.Paragraph;
  import com.itextpdf.text.html.HtmlWriter;
  import com.itextpdf.text.pdf.PdfWriter;
  import com.itextpdf.text.rtf.RtfWriter2;
 
 
 
  public class PDFServlet extends HttpServlet {
    public void doGet(HttpServletRequest request,
     HttpServletResponse response) throws IOException,
        ServletException {
      String newOrder = request.getParameter("newOrder");
      Document document = new Document();
      try {
        if ("pdf".equals(newOrder)) {
          response.setContentType("application/pdf");
          PdfWriter.getInstance(document, response.getOutputStream());
        }
        document.open();
        document.add(new Paragraph("Hello World"));
        document.add(new Paragraph(new Date().toString()));
      } catch (DocumentException de) {
        de.printStackTrace();
        System.err.println("document: " + de.getMessage());
      }
      document.close();
    }
  }

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