Html to pdf in java struts.

Html to pdf in java struts.


import com.lowagie.text.Document;
import com.lowagie.text.Element;
import com.lowagie.text.PageSize;
import com.lowagie.text.html.simpleparser.HTMLWorker;
import com.lowagie.text.html.simpleparser.StyleSheet;
import com.lowagie.text.pdf.PdfWriter;
import com.lowagie.text.pdf.codec.Base64;

import java.util.ArrayList;
import java.io.*;
import java.text.DateFormat;
import java.text.SimpleDateFormat;

import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import javax.servlet.http.HttpServlet;
import java.sql.*;
import java.text.SimpleDateFormat;
import java.util.*;
import javax.servlet.http.HttpSession;

import org.apache.struts.action.ActionForm;
import org.apache.struts.action.ActionMapping;
import org.apache.struts.action.ActionForward;
import org.apache.struts.validator.DynaValidatorForm;
import org.hibernate.HibernateException;
import org.hibernate.Query;
import org.hibernate.Session;
import org.hibernate.Transaction;
import plugins.HibernateSessionFactory;


String contextName = request.getContextPath().substring(1);
HttpSession hs = request.getSession();
String path = hs.getServletContext().getRealPath("/" + contextName);

char pathSep = new File(path).separatorChar;

path = path.substring(0, path.lastIndexOf(pathSep + contextName));
path = path + pathSep + "MyForms";


Document pdfDoc = new Document(PageSize.A4, 50, 50, 1, 50);
Reader htmlReader = new BufferedReader(new InputStreamReader(new FileInputStream(path+"\\newRegistrn.html")));
ByteArrayOutputStream byteAOS = new ByteArrayOutputStream();
PdfWriter.getInstance(pdfDoc, byteAOS);
pdfDoc.open();
StyleSheet stylez = new StyleSheet();
stylez.loadTagStyle("body", "font", "Tahoma");
ArrayList arrayElementList = HTMLWorker.parseToList(htmlReader, stylez);
for (int i = 0; i < arrayElementList.size(); ++i) {
    Element e = (Element) arrayElementList.get(i);
    pdfDoc.add(e);
}
pdfDoc.close();
       
DateFormat dff = new SimpleDateFormat("dd_MMMM_yyyy");
DateFormat tf = new SimpleDateFormat("hhmmss");
String dateString = dff.format(new java.util.Date());
String timeString = tf.format(new java.util.Date());
String pdfStoredFileName = "\\newRegistrn_" + dateString + timeString + "__" + ".pdf";

byte[] byt = byteAOS.toByteArray();
String pdfBase64 = Base64.encodeBytes(byt);
File pdfFile = new File(path+pdfStoredFileName);
FileOutputStream out = new FileOutputStream(pdfFile);
out.write(byt);
out.close();
htmlReader.close();



String fileToDownload =pdfStoredFileName;
String disHeader = "Attachment;Filename=" + fileToDownload;
response.setHeader("Content-Disposition", disHeader);
File desktopFile = new File(path+pdfStoredFileName);
PrintWriter pw = response.getWriter();
FileInputStream fileInputStream = new FileInputStream(desktopFile);
int j;
pw.flush();
while ((j = fileInputStream.read()) != -1) {
   pw.write(j);
}
fileInputStream.close();
response.flushBuffer();
pw.flush();
pw.close();

File fileToDel = new File(path+pdfStoredFileName);
  if(fileToDel.delete()){
    System.out.println("\n "+fileToDel.getName() + " is deleted!");
  } else {
    System.out.println("\n Delete operation is failed.");
  }