Generar PDF con un servlet

[ipraetoriux]

Una librería muy fácil de usar y con mucha info por todos lados es iText.

De acá la podes descargar: http://sourceforge.net/projects/itext/

Acá tenes un ejemplo de como usarla: http://www.ibm.com/developerworks/op...ry/os-javapdf/

Tambien podes hacerlo directamente sin libreria de esta forma:

Código Java:

import java.io.File;
import java.io.FileInputStream;
import java.io.IOException;
import java.io.OutputStream;
 
import javax.servlet.ServletException;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
 
public class TestPdfServlet extends javax.servlet.http.HttpServlet implements javax.servlet.Servlet {
 
    private static final long serialVersionUID = 1L;
 
    protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
        performTask(request, response);
    }
 
    protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException,
            IOException {
        performTask(request, response);
    }
 
    private void performTask(HttpServletRequest request, HttpServletResponse response) throws ServletException,
            IOException {
 
        String pdfFileName = "pdf-test.pdf";
        String contextPath = getServletContext().getRealPath(File.separator);
        File pdfFile = new File(contextPath + pdfFileName);
 
        response.setContentType("application/pdf");
        response.addHeader("Content-Disposition", "attachment; filename=" + pdfFileName);
        response.setContentLength((int) pdfFile.length());
 
        FileInputStream fileInputStream = new FileInputStream(pdfFile);
        OutputStream responseOutputStream = response.getOutputStream();
        int bytes;
        while ((bytes = fileInputStream.read()) != -1) {
            responseOutputStream.write(bytes);
        }
 
    }
 
}