Java tutorial
/* * To change this license header, choose License Headers in Project Properties. * To change this template file, choose Tools | Templates * and open the template in the editor. */ package reports; import java.io.ByteArrayOutputStream; import java.io.IOException; import java.io.OutputStream; import java.io.PrintWriter; import java.nio.file.Files; import java.nio.file.LinkOption; import java.nio.file.Path; import java.nio.file.Paths; import java.nio.file.StandardCopyOption; import java.sql.SQLException; import java.util.logging.Level; import java.util.logging.Logger; import javax.servlet.ServletException; import javax.servlet.http.HttpServlet; import javax.servlet.http.HttpServletRequest; import javax.servlet.http.HttpServletResponse; import javax.servlet.http.HttpSession; import org.apache.poi.hssf.usermodel.HSSFCell; import org.apache.poi.hssf.usermodel.HSSFCellStyle; import org.apache.poi.hssf.usermodel.HSSFFont; import org.apache.poi.hssf.usermodel.HSSFRow; import org.apache.poi.hssf.usermodel.HSSFSheet; import org.apache.poi.hssf.usermodel.HSSFWorkbook; import org.apache.poi.hssf.util.HSSFColor; import org.apache.poi.openxml4j.exceptions.InvalidFormatException; import org.apache.poi.openxml4j.opc.OPCPackage; import org.apache.poi.ss.usermodel.CellStyle; import org.apache.poi.xssf.usermodel.XSSFCell; import org.apache.poi.xssf.usermodel.XSSFCellStyle; import org.apache.poi.xssf.usermodel.XSSFFont; import org.apache.poi.xssf.usermodel.XSSFRow; import org.apache.poi.xssf.usermodel.XSSFSheet; import org.apache.poi.xssf.usermodel.XSSFWorkbook; import pwp.dbConn; /** * * @author Geofrey Nyabuto */ public class kePMS extends HttpServlet { HttpSession session; String startDate, endDate, month, partnername, clientid, gender, agebracket; int year, prevyear, pos, sessionno, pepfaryear, pos2, achieved, age; int start, end, datekey; protected void processRequest(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException, SQLException, InvalidFormatException { session = request.getSession(); dbConn conn = new dbConn(); pos = 0; pepfaryear = 2015; // pepfaryear=Integer.parseInt(request.getParameter("year")); prevyear = pepfaryear - 1; String enddate = pepfaryear + "09"; String startdate = prevyear + "10"; start = Integer.parseInt(startdate); end = Integer.parseInt(enddate); System.out.println("start date : " + start + " end date : " + end); // COPY FILE TO BE WRITTEN TO Path original = Paths.get(getServletContext().getRealPath("/TEMPLATE.xlsm")); //original file Path destination = Paths.get(getServletContext().getRealPath("/TEMPLATE_1.xlsm")); //new file System.out.println("origin : " + original + " destination : " + destination); try { Files.copy(original, destination, StandardCopyOption.REPLACE_EXISTING); System.out.println("file copied----------------"); } catch (IOException x) { //catch all for IO problems System.out.println("fine not copied"); } String allpath = getServletContext().getRealPath("/TEMPLATE_1.xlsm"); // ^^^^^^^^^^^^^CREATE STATIC AND WRITE STATIC DATA TO THE EXCELL^^^^^^^^^^^^ XSSFWorkbook wb; OPCPackage pkg = OPCPackage.open(allpath); wb = new XSSFWorkbook(pkg); // HSSFWorkbook wb=new HSSFWorkbook(); XSSFSheet shet1 = wb.getSheet("sheet0"); XSSFFont font = wb.createFont(); font.setFontHeightInPoints((short) 18); font.setFontName("Arial Black"); font.setColor((short) 0000); CellStyle style = wb.createCellStyle(); style.setFont(font); style.setAlignment(HSSFCellStyle.ALIGN_CENTER); XSSFFont font2 = wb.createFont(); font2.setFontName("Arial Black"); font2.setColor((short) 0000); CellStyle style2 = wb.createCellStyle(); style2.setFont(font2); XSSFCellStyle stborder = wb.createCellStyle(); stborder.setBorderTop(HSSFCellStyle.BORDER_THIN); stborder.setBorderBottom(HSSFCellStyle.BORDER_THIN); stborder.setBorderLeft(HSSFCellStyle.BORDER_THIN); stborder.setBorderRight(HSSFCellStyle.BORDER_THIN); stborder.setAlignment(HSSFCellStyle.ALIGN_CENTER); XSSFCellStyle stylex = wb.createCellStyle(); stylex.setFillForegroundColor(HSSFColor.LIME.index); stylex.setFillPattern(HSSFCellStyle.SOLID_FOREGROUND); stylex.setBorderTop(HSSFCellStyle.BORDER_THIN); stylex.setBorderBottom(HSSFCellStyle.BORDER_THIN); stylex.setBorderLeft(HSSFCellStyle.BORDER_THIN); stylex.setBorderRight(HSSFCellStyle.BORDER_THIN); stylex.setAlignment(HSSFCellStyle.ALIGN_CENTER); XSSFFont fontx = wb.createFont(); fontx.setColor(HSSFColor.DARK_BLUE.index); stylex.setFont(fontx); stylex.setWrapText(true); // HSSFSheet sheet1 = wb.getSheetAt(0); shet1.setColumnWidth(0, 4000); shet1.setColumnWidth(1, 4000); shet1.setColumnWidth(2, 4000); shet1.setColumnWidth(3, 4000); shet1.setColumnWidth(4, 4000); XSSFRow rw4 = shet1.createRow(0); rw4.setHeightInPoints(45); rw4.setRowStyle(style2); // rw4.createCell(1).setCellValue("Number"); XSSFCell cell0, cell1, cell2, cell3, cell4; cell0 = rw4.createCell(0); cell1 = rw4.createCell(1); cell2 = rw4.createCell(2); cell3 = rw4.createCell(3); cell4 = rw4.createCell(4); cell0.setCellValue("PARTNER NAME"); cell1.setCellValue("AGE BRACKET"); cell2.setCellValue("GENDER"); cell3.setCellValue("MONTH"); cell4.setCellValue("ACHIEVED"); String getClients = "SELECT partner.partner_name," + "CASE " + "when clients.completionmonth =01 THEN '" + pepfaryear + "-01(JAN)' " + "when clients.completionmonth =02 THEN '" + pepfaryear + "-02 (FEB)' " + "when clients.completionmonth =03 THEN '" + pepfaryear + "-03 (MAR)' " + "when clients.completionmonth=04 THEN '" + pepfaryear + "-04 (APR)' " + "when clients.completionmonth=05 THEN '" + pepfaryear + "-05 (MAY)' " + "when clients.completionmonth=06 THEN '" + pepfaryear + "-06 (JUN)' " + "when clients.completionmonth=07 THEN '" + pepfaryear + "-07 (JUL)' " + "when clients.completionmonth=08 THEN '" + pepfaryear + "-08 (AUG)' " + "when clients.completionmonth=09 THEN '" + pepfaryear + "-09 (SEPT)' " + "when clients.completionmonth=10 THEN '" + prevyear + "-10 (OCT)' " + "when clients.completionmonth=11 THEN '" + prevyear + "-11 (NOV)'" + "when clients.completionmonth=12 THEn '" + prevyear + "-12 (DEC)'" + "END AS MONTHS,clients.completionyear," + "CASE" + " WHEN clients.age BETWEEN 0 AND 14 THEN '0-14'" + " WHEN clients.age BETWEEN 15 AND 19 THEN '15-19'" + " WHEN clients.age BETWEEN 20 AND 24 THEN '20-24'" + " WHEN clients.age >24 THEN '>25'" + " ELSE 'NOT SELECTED'" + " END AS AGEBRACKET," + "CASE " + "when clients.gender LIKE 'Female' THEN 'F' " + "when clients.gender LIKE 'Male' THEN 'M' " + "ELSE 'NO SEX' " + "END AS SEX" + ",completionmonth,COUNT(clients.client_id) FROM clients " + "JOIN partner ON clients.partner_id=partner.partner_id " + " WHERE clients.completionmonth>0 && clients.completionyear>0 GROUP BY partner.partner_name,SEX,MONTHS,AGEBRACKET ORDER BY clients.partner_id"; conn.rs = conn.st.executeQuery(getClients); while (conn.rs.next()) { partnername = clientid = gender = ""; age = 0; partnername = conn.rs.getString(1); month = conn.rs.getString(2); year = conn.rs.getInt(3); agebracket = conn.rs.getString(4); gender = conn.rs.getString(5); String dkey = year + "" + conn.rs.getString(6); datekey = Integer.parseInt(dkey); achieved = conn.rs.getInt(7); if (datekey >= start && datekey <= end && year >= 2014) { pos++; XSSFRow rw4x = shet1.createRow(pos); rw4x.setHeightInPoints(25); rw4x.setRowStyle(style2); XSSFCell cell0x, cell1x, cell2x, cell3x, cell4x; cell0x = rw4x.createCell(0); cell1x = rw4x.createCell(1); cell2x = rw4x.createCell(2); cell3x = rw4x.createCell(3); cell4x = rw4x.createCell(4); // OUTPUT SERVICES PROVIDED================================ cell0x.setCellValue(partnername); cell1x.setCellValue(agebracket); cell2x.setCellValue(gender); cell3x.setCellValue(month); cell4x.setCellValue(achieved); System.out.println(pos + "-----partner :" + partnername + " age bracket :" + agebracket + " gender :" + gender + " completion month : " + month); } } if (conn.rs != null) { conn.rs.close(); } if (conn.st != null) { conn.st.close(); } if (conn.rs1 != null) { conn.rs1.close(); } if (conn.st1 != null) { conn.st1.close(); } if (conn.rs2 != null) { conn.rs2.close(); } if (conn.st2 != null) { conn.st2.close(); } if (conn.st3 != null) { conn.st3.close(); } if (conn.pst != null) { conn.pst.close(); } if (conn.pst != null) { conn.pst.close(); } if (conn.pst1 != null) { conn.pst1.close(); } if (conn.pst1 != null) { conn.pst1.close(); } if (conn.conn != null) { conn.conn.close(); } ByteArrayOutputStream outByteStream = new ByteArrayOutputStream(); wb.write(outByteStream); byte[] outArray = outByteStream.toByteArray(); response.setContentType("application/ms-excel"); response.setContentLength(outArray.length); response.setHeader("Expires:", "0"); // eliminates browser caching response.setHeader("Content-Disposition", "attachment; filename=PWP_kePMS_REPORT_FOR_PEPFAR_YEAR_" + pepfaryear + ".xlsm"); OutputStream outStream = response.getOutputStream(); outStream.write(outArray); outStream.flush(); pkg.close(); } // <editor-fold defaultstate="collapsed" desc="HttpServlet methods. Click on the + sign on the left to edit the code."> /** * Handles the HTTP <code>GET</code> method. * * @param request servlet request * @param response servlet response * @throws ServletException if a servlet-specific error occurs * @throws IOException if an I/O error occurs */ @Override protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException { try { processRequest(request, response); } catch (SQLException ex) { Logger.getLogger(kePMS.class.getName()).log(Level.SEVERE, null, ex); } catch (InvalidFormatException ex) { Logger.getLogger(kePMS.class.getName()).log(Level.SEVERE, null, ex); } } /** * Handles the HTTP <code>POST</code> method. * * @param request servlet request * @param response servlet response * @throws ServletException if a servlet-specific error occurs * @throws IOException if an I/O error occurs */ @Override protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException { try { processRequest(request, response); } catch (SQLException ex) { Logger.getLogger(kePMS.class.getName()).log(Level.SEVERE, null, ex); } catch (InvalidFormatException ex) { Logger.getLogger(kePMS.class.getName()).log(Level.SEVERE, null, ex); } } /** * Returns a short description of the servlet. * * @return a String containing servlet description */ @Override public String getServletInfo() { return "Short description"; }// </editor-fold> }