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.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.HSSFCellStyle; 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 kePMSNotAchieved extends HttpServlet { HttpSession session; String startDate, endDate, month, partnername, clientid, gender, agebracket, countyname, districtname; int year, prevyear, pos, sessionno, pepfaryear, pos2, achieved, age; int start, end, datekey; String groupname; protected void processRequest(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException, InvalidFormatException, SQLException { session = request.getSession(); dbConn conn = new dbConn(); pos = 0; // COPY FILE TO BE WRITTEN TO Path original = Paths.get(getServletContext().getRealPath("/NotAchieved.xlsm")); //original file Path destination = Paths.get(getServletContext().getRealPath("/NotAchieved_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("/NotAchieved_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("sheet1"); 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, cell5, cell6; cell0 = rw4.createCell(0); cell1 = rw4.createCell(1); cell2 = rw4.createCell(2); cell3 = rw4.createCell(3); cell4 = rw4.createCell(4); cell5 = rw4.createCell(5); cell6 = rw4.createCell(6); cell0.setCellValue("COUNTY NAME"); cell1.setCellValue("DISTRICT NAME"); cell2.setCellValue("PARTNER NAME"); cell3.setCellValue("GROUP NAME"); cell4.setCellValue("AGE BRACKET"); cell5.setCellValue("GENDER"); cell6.setCellValue("CLIENTS"); String getClients = "SELECT county.county_name,district.district_name,partner.partner_name," + "CASE" + " WHEN (DATE_FORMAT( NOW( ) , '%Y' ) - DATE_FORMAT( personal_information.dob, '%Y' )-( DATE_FORMAT( NOW( ),'YYYY-%mm-%dd' )< DATE_FORMAT( personal_information.dob, 'YYYY-%mm-%dd' ) )) BETWEEN 0 AND 14 THEN '0-14'" + " WHEN (DATE_FORMAT( NOW( ) , '%Y' ) - DATE_FORMAT( personal_information.dob, '%Y' )-( DATE_FORMAT( NOW( ),'YYYY-%mm-%dd' )< DATE_FORMAT( personal_information.dob, 'YYYY-%mm-%dd' ) )) BETWEEN 15 AND 19 THEN '15-19'" + " WHEN (DATE_FORMAT( NOW( ) , '%Y' ) - DATE_FORMAT( personal_information.dob, '%Y' )-( DATE_FORMAT( NOW( ),'YYYY-%mm-%dd' )< DATE_FORMAT( personal_information.dob, 'YYYY-%mm-%dd' ) )) BETWEEN 20 AND 24 THEN '20-24'" + " WHEN (DATE_FORMAT( NOW( ) , '%Y' ) - DATE_FORMAT( personal_information.dob, '%Y' )-( DATE_FORMAT( NOW( ),'YYYY-%mm-%dd' )< DATE_FORMAT( personal_information.dob, 'YYYY-%mm-%dd' ) )) >24 THEN '>25'" + " ELSE 'NO DATE OF BIRTH'" + " END AS AGEBRACKET," + "CASE " + "when personal_information.gender LIKE 'Female' THEN 'F' " + "when personal_information.gender LIKE 'Male' THEN 'M' " + "ELSE 'NO SEX' " + "END AS SEX" + ",COUNT(personal_information.client_id),groups.group_name as groupname FROM personal_information " + "JOIN partner ON personal_information.partner_id=partner.partner_id " + " JOIN district ON district.district_id=personal_information.district_id " + "JOIN county ON county.county_id=district.county_id " + "LEFT JOIN groups ON personal_information.group_id=groups.group_id " + " WHERE personal_information.lessons_attended>0 && personal_information.completionyear=0 " + "GROUP BY partner.partner_name,district.district_name,groupname,SEX,AGEBRACKET ORDER BY personal_information.partner_id"; conn.rs = conn.st.executeQuery(getClients); while (conn.rs.next()) { partnername = clientid = gender = ""; age = 0; countyname = conn.rs.getString(1); districtname = conn.rs.getString(2); partnername = conn.rs.getString(3); agebracket = conn.rs.getString(4); gender = conn.rs.getString(5); achieved = conn.rs.getInt(6); groupname = conn.rs.getString(7); if (groupname == null) { groupname = "INDIVIDUAL"; } pos++; XSSFRow rw4x = shet1.createRow(pos); rw4x.setHeightInPoints(25); rw4x.setRowStyle(style2); XSSFCell cell0x, cell1x, cell2x, cell3x, cell4x, cell5x, cell6x; cell0x = rw4x.createCell(0); cell1x = rw4x.createCell(1); cell2x = rw4x.createCell(2); cell3x = rw4x.createCell(3); cell4x = rw4x.createCell(4); cell5x = rw4x.createCell(5); cell6x = rw4x.createCell(6); // OUTPUT SERVICES PROVIDED================================ cell0x.setCellValue(countyname); cell1x.setCellValue(districtname); cell2x.setCellValue(partnername); cell3x.setCellValue(groupname); cell4x.setCellValue(agebracket); cell5x.setCellValue(gender); cell6x.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_NOT_ACHIEVED.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 (InvalidFormatException ex) { Logger.getLogger(kePMSNotAchieved.class.getName()).log(Level.SEVERE, null, ex); } catch (SQLException ex) { Logger.getLogger(kePMSNotAchieved.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 (InvalidFormatException ex) { Logger.getLogger(kePMSNotAchieved.class.getName()).log(Level.SEVERE, null, ex); } catch (SQLException ex) { Logger.getLogger(kePMSNotAchieved.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> }