Java tutorial
/** * The contents of this file are subject to the OpenMRS Public License * Version 1.0 (the "License"); you may not use this file except in * compliance with the License. You may obtain a copy of the License at * http://license.openmrs.org * * Software distributed under the License is distributed on an "AS IS" * basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See the * License for the specific language governing rights and limitations * under the License. * * Copyright (C) OpenMRS, LLC. All Rights Reserved. */ package org.restate.project.controller; import com.itextpdf.text.*; import com.itextpdf.text.pdf.PdfPCell; import com.itextpdf.text.pdf.PdfPTable; import com.itextpdf.text.pdf.PdfWriter; import org.apache.commons.io.IOUtils; import org.apache.commons.logging.Log; import org.apache.commons.logging.LogFactory; import org.restate.project.service.AgentService; import org.restate.project.service.LandlordAgreementService; import org.springframework.beans.factory.annotation.Autowired; import org.springframework.stereotype.Controller; import org.springframework.web.bind.annotation.RequestMapping; import org.springframework.web.bind.annotation.RequestMethod; import org.springframework.web.bind.annotation.RequestParam; import javax.servlet.http.HttpServletResponse; import java.io.File; import java.io.FileInputStream; import java.io.FileOutputStream; import java.io.OutputStream; import java.text.DecimalFormat; @Controller @RequestMapping("receipt.print") public class PaymentReceiptController { private Log log = LogFactory.getLog(this.getClass()); @Autowired private LandlordAgreementService landlordAgreementService; @Autowired private AgentService agentService; @RequestMapping(method = RequestMethod.GET, value = "receipt.print") public void downloadDocument(HttpServletResponse response, @RequestParam(value = "id", required = false) Integer id) throws Exception { if (id == null) { return; } // creation of the document with a certain size and certain margins // may want to use PageSize.LETTER instead // Document document = new Document(PageSize.A4, 50, 50, 50, 50); Document doc = new Document(); PdfWriter docWriter = null; DecimalFormat df = new DecimalFormat("0.00"); File tmpFile = File.createTempFile("paymentReceipt", ".pdf"); try { //special font sizes Font bfBold12 = new Font(Font.FontFamily.TIMES_ROMAN, 12, Font.BOLD, new BaseColor(0, 0, 0)); Font bf12 = new Font(Font.FontFamily.TIMES_ROMAN, 12); //file path docWriter = PdfWriter.getInstance(doc, new FileOutputStream(tmpFile)); //document header attributes doc.addAuthor("betterThanZero"); doc.addCreationDate(); doc.addProducer(); doc.addCreator("MySampleCode.com"); doc.addTitle("Report with Column Headings"); doc.setPageSize(PageSize.LETTER); //open document doc.open(); //create a paragraph Paragraph paragraph = new Paragraph("iText is a library that allows you to create and " + "manipulate PDF documents. It enables developers looking to enhance web and other " + "applications with dynamic PDF document generation and/or manipulation."); //specify column widths float[] columnWidths = { 1.5f, 2f, 5f, 2f }; //create PDF table with the given widths PdfPTable table = new PdfPTable(columnWidths); // set table width a percentage of the page width table.setWidthPercentage(90f); //insert column headings insertCell(table, "Order No", Element.ALIGN_RIGHT, 1, bfBold12); insertCell(table, "Account No", Element.ALIGN_LEFT, 1, bfBold12); insertCell(table, "Account Name", Element.ALIGN_LEFT, 1, bfBold12); insertCell(table, "Order Total", Element.ALIGN_RIGHT, 1, bfBold12); table.setHeaderRows(1); //insert an empty row insertCell(table, "", Element.ALIGN_LEFT, 4, bfBold12); //create section heading by cell merging insertCell(table, "New York Orders ...", Element.ALIGN_LEFT, 4, bfBold12); double orderTotal, total = 0; //just some random data to fill for (int x = 1; x < 5; x++) { insertCell(table, "10010" + x, Element.ALIGN_RIGHT, 1, bf12); insertCell(table, "ABC00" + x, Element.ALIGN_LEFT, 1, bf12); insertCell(table, "This is Customer Number ABC00" + x, Element.ALIGN_LEFT, 1, bf12); orderTotal = Double.valueOf(df.format(Math.random() * 1000)); total = total + orderTotal; insertCell(table, df.format(orderTotal), Element.ALIGN_RIGHT, 1, bf12); } //merge the cells to create a footer for that section insertCell(table, "New York Total...", Element.ALIGN_RIGHT, 3, bfBold12); insertCell(table, df.format(total), Element.ALIGN_RIGHT, 1, bfBold12); //repeat the same as above to display another location insertCell(table, "", Element.ALIGN_LEFT, 4, bfBold12); insertCell(table, "California Orders ...", Element.ALIGN_LEFT, 4, bfBold12); orderTotal = 0; for (int x = 1; x < 7; x++) { insertCell(table, "20020" + x, Element.ALIGN_RIGHT, 1, bf12); insertCell(table, "XYZ00" + x, Element.ALIGN_LEFT, 1, bf12); insertCell(table, "This is Customer Number XYZ00" + x, Element.ALIGN_LEFT, 1, bf12); orderTotal = Double.valueOf(df.format(Math.random() * 1000)); total = total + orderTotal; insertCell(table, df.format(orderTotal), Element.ALIGN_RIGHT, 1, bf12); } insertCell(table, "California Total...", Element.ALIGN_RIGHT, 3, bfBold12); insertCell(table, df.format(total), Element.ALIGN_RIGHT, 1, bfBold12); //add the PDF table to the paragraph paragraph.add(table); // add the paragraph to the document doc.add(paragraph); } catch (DocumentException dex) { dex.printStackTrace(); } catch (Exception ex) { ex.printStackTrace(); } finally { if (doc != null) { //close the document doc.close(); } if (docWriter != null) { //close the writer docWriter.close(); } response.setHeader("Content-disposition", "attachment; filename=" + "sampleDoc" + ".pdf"); response.setContentType("application/pdf"); OutputStream outputStream = response.getOutputStream(); FileInputStream fileInputStream = new FileInputStream(tmpFile); IOUtils.copy(fileInputStream, outputStream); fileInputStream.close(); outputStream.flush(); tmpFile.delete(); } } private void insertCell(PdfPTable table, String text, int align, int colspan, Font font) { //create a new cell with the specified Text and Font PdfPCell cell = new PdfPCell(new Phrase(text.trim(), font)); //set the cell alignment cell.setHorizontalAlignment(align); //set the cell column span in case you want to merge two or more cells cell.setColspan(colspan); //in case there is no text and you wan to create an empty row if (text.trim().equalsIgnoreCase("")) { cell.setMinimumHeight(10f); } //add the call to the table table.addCell(cell); } }