[POI/ HSSF] Problème mise en forme + comparaison dates

Bonjour,

J'ai actuellement une JSP (avec du java (je sais c'est mal mais pas le choix)) pour extraire des données et les exporter en excel

voici mon code

Code:

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HSSFWorkbook wb = new HSSFWorkbook(); HSSFSheet sheet = wb.createSheet(trigramme_BAT+" (requête sur serveur Bord)");   ArrayList utilisateurs = maintenance.listerUtilisateur(); ArrayList feuille = null; Groupe groupe = null;   HSSFRow header = sheet.createRow((short)0); header.setHeight((short) 0x350);   sheet.addMergedRegion(new Region(( short ) 0, ( short ) 0, ( short ) 0, ( short ) 1)); sheet.addMergedRegion(new Region(( short ) 0, ( short ) 2, ( short ) 0, ( short ) 5)); sheet.addMergedRegion(new Region(( short ) 0, ( short ) 7, ( short ) 0, ( short ) 8));   Calendar calendar = Calendar.getInstance();// date du jour int year = calendar.get(Calendar.YEAR);   SimpleDateFormat formater = new SimpleDateFormat("dd/MM/yyyy");   HSSFPalette palette = wb.getCustomPalette(); palette.setColorAtIndex(HSSFColor.BLUE.index,(byte) 141, (byte) 180,(byte) 226); palette.setColorAtIndex(HSSFColor.LAVENDER.index,(byte) 217, (byte) 217,(byte) 217);   // Style header Font HSSFFont hSSFFont = wb.createFont(); hSSFFont.setFontName(HSSFFont.FONT_ARIAL); hSSFFont.setFontHeightInPoints((short) 16); hSSFFont.setBoldweight(HSSFFont.BOLDWEIGHT_BOLD);   // Style red Style HSSFCellStyle cellStyleRed = wb.createCellStyle(); cellStyleRed.setFillForegroundColor(HSSFColor.RED.index); cellStyleRed.setFillPattern(HSSFCellStyle.SOLID_FOREGROUND); cellStyleRed.setBorderTop((short) 1); cellStyleRed.setBorderBottom((short) 1); cellStyleRed.setBorderLeft((short) 1); cellStyleRed.setBorderRight((short) 1);   // Style red font HSSFCellStyle cellStyleRedFont = wb.createCellStyle(); HSSFFont fontRedFont = wb.createFont(); fontRedFont.setColor(HSSFColor.BLACK.index); cellStyleRedFont.setFont(fontRedFont); cellStyleRedFont.setBorderTop((short) 1); cellStyleRedFont.setBorderBottom((short) 1); cellStyleRedFont.setBorderLeft((short) 1); cellStyleRedFont.setBorderRight((short) 1);   // Style blue Style HSSFCellStyle cellStyleBlue = wb.createCellStyle(); cellStyleBlue.setFillForegroundColor(HSSFColor.BLUE.index); cellStyleBlue.setFillPattern(HSSFCellStyle.SOLID_FOREGROUND); cellStyleBlue.setBorderTop((short) 1); cellStyleBlue.setBorderBottom((short) 1); cellStyleBlue.setBorderLeft((short) 1); cellStyleBlue.setBorderRight((short) 1);   // Style lavender Style HSSFCellStyle cellStyleLavender = wb.createCellStyle(); cellStyleLavender.setFillForegroundColor(HSSFColor.LAVENDER.index); cellStyleLavender.setFillPattern(HSSFCellStyle.SOLID_FOREGROUND); cellStyleLavender.setBorderTop((short) 1); cellStyleLavender.setBorderBottom((short) 1); cellStyleLavender.setBorderLeft((short) 1); cellStyleLavender.setBorderRight((short) 1);   // Style border HSSFCellStyle cellStyleBorde = wb.createCellStyle(); cellStyleBorde = wb.createCellStyle(); cellStyleBorde.setBorderTop((short) 1); cellStyleBorde.setBorderBottom((short) 1); cellStyleBorde.setBorderLeft((short) 1); cellStyleBorde.setBorderRight((short) 1);     // Style header 1 HSSFCellStyle cellStyle1 = wb.createCellStyle(); cellStyle1.setFillForegroundColor(HSSFColor.BRIGHT_GREEN.index); cellStyle1.setFillPattern(HSSFCellStyle.SOLID_FOREGROUND); cellStyle1.setBorderTop((short) 1); cellStyle1.setBorderBottom((short) 1); cellStyle1.setBorderLeft((short) 1); cellStyle1.setBorderRight((short) 1); // Style header 2 HSSFCellStyle cellStyle2 = wb.createCellStyle(); cellStyle2.setBorderTop((short) 1); cellStyle2.setBorderBottom((short) 1); cellStyle2.setBorderLeft((short) 1); // Style header 3 HSSFCellStyle cellStyle3 = wb.createCellStyle(); cellStyle3.setBorderTop((short) 1); cellStyle3.setBorderBottom((short) 1); cellStyle3.setBorderRight((short) 1); // Style header 4 HSSFCellStyle cellStyle4 = wb.createCellStyle(); cellStyle4.setBorderTop((short) 1); cellStyle4.setBorderBottom((short) 1); cellStyle4.setBorderLeft((short) 1); cellStyle4.setBorderRight((short) 1);   HSSFCell cell1 = header.createCell((short)0); cell1.setCellValue("TYPE DE BATIEMENT "+ trigramme_BAT); HSSFCell cell2 = header.createCell((short)2); cell2.setCellValue("BILAN DES EQUIPEMENTS SOUS PRESSION"); HSSFCell cell3 = header.createCell((short)6); cell3.setCellValue("EXTRACTION SIGLE DU : "); HSSFCell cell4 = header.createCell((short)7); HSSFCell cell5 = header.createCell((short)9); HSSFCell cell6 = header.createCell((short)10);     // Style headerDate HSSFDataFormat hssfDataFormat = wb.createDataFormat(); HSSFCellStyle cellStyleDate = wb.createCellStyle(); cellStyleDate.setFillForegroundColor(HSSFColor.BRIGHT_GREEN.index); cellStyleDate.setFillPattern(HSSFCellStyle.SOLID_FOREGROUND); cellStyleDate.setDataFormat(hssfDataFormat.getFormat("dd/mm/yyyy")); cellStyleDate.setBorderTop((short) 1); cellStyleDate.setBorderBottom((short) 1); cellStyleDate.setBorderLeft((short) 1); cellStyleDate.setBorderRight((short) 1);     cellStyle1.setFont(hSSFFont); cellStyle2.setFont(hSSFFont); cellStyle3.setFont(hSSFFont); cellStyle4.setFont(hSSFFont); cellStyleDate.setFont(hSSFFont);   cell1.setCellStyle(cellStyle1); cell2.setCellStyle(cellStyle2); cell3.setCellStyle(cellStyle3); cell4.setCellValue(formater.format(new Date())); cell4.setCellStyle(cellStyleDate); cell5.setCellStyle(cellStyle4); cell6.setCellStyle(cellStyle4);         // Style border 2 HSSFCellStyle cellStyleBorderRow2 = wb.createCellStyle(); cellStyleBorderRow2 = wb.createCellStyle(); cellStyleBorderRow2.setBorderTop((short) 1); cellStyleBorderRow2.setBorderBottom((short) 1); cellStyleBorderRow2.setBorderLeft((short) 1); cellStyleBorderRow2.setBorderRight((short) 1);   HSSFRow row = sheet.createRow((short)1); row.setHeight((short) 0x249);   final ArrayList<String> headings = new ArrayList(); headings.add("Unité"); headings.add("Installation"); headings.add("Bigramme"); headings.add("RTPF"); headings.add("Code appareil"); headings.add("Désignation ESP"); headings.add("Date de mise en service"); headings.add("Date dernière requalif"); headings.add("Date dernière inspection"); headings.add("Prochaine requalif"); headings.add("Prochaine inspection");   for(int i = 0 ; i < headings.size(); i++){ String maValeur = headings.get(i); HSSFCell rowcell = row.createCell((short)i); rowcell.setCellValue(maValeur); rowcell.setCellStyle(cellStyleBorderRow2);   }   HSSFRow row2 ;   Iterator iter= maintenance.recupererListeESP(trigramme_BAT).iterator();   int k = 2; while (iter.hasNext()){ ArrayList tmp = new ArrayList(); tmp = (ArrayList) iter.next(); row2 = sheet.createRow((short)k); for (int d=0; d<=10 ; d++){ HSSFCell celln5 = row2.getCell(5); HSSFCell celln7 = row2.getCell(7); HSSFCell celln9 = row2.getCell(9); HSSFCell celln10 = row2.getCell(10);   HSSFCell rowcell = row2.createCell((short)d); rowcell.setCellValue((String) tmp.get(d));   String dateProchRequalif = (String)tmp.get(9); String dateProchInspection = (String)tmp.get(10); String dateMiseService = (String)tmp.get(7);   SimpleDateFormat format = new SimpleDateFormat("dd/MM/yyyy"); String dateDuJour = formater.format(calendar.getTime()); String dateFAnnee = formater.format("31/12/"+String.valueOf(year)); Date datea = format.parse(dateDuJour); Date dateb = format.parse("31/12/2014"); rowcell.setCellStyle(cellStyleBorderRow2);   if(!dateMiseService.equals("") && dateMiseService.equals("NON SOUMIS A REGLEMENTATION")){ rowcell.setCellStyle(cellStyleLavender); }   else if(!dateMiseService.equals("") && dateMiseService.equals("! ! ! COMPTEUR A INITIALISER ! ! !")){ rowcell.setCellStyle(cellStyleRedFont); } else{ if(!dateProchRequalif.equals("") && !dateProchRequalif.equals("/")){ Date date1 = format.parse(dateProchRequalif); if (date1.compareTo(datea) <= 0) { celln9.setCellStyle(cellStyleRed); } else if (date1.compareTo(datea) > 0) { if (date1.compareTo(dateb) > 0) { celln9.setCellStyle(cellStyleBorderRow2); } else { celln9.setCellStyle(cellStyleBlue); } } } if(!dateProchInspection.equals("") && !dateProchInspection.equals("/")){ Date date2 = format.parse(dateProchInspection); if (date2.compareTo(datea) <= 0) { celln10.setCellStyle(cellStyleRed); } else if (date2.compareTo(datea) > 0) { if (date2.compareTo(dateb) > 0) { celln10.setCellStyle(cellStyleBorderRow2); } else { celln10.setCellStyle(cellStyleBlue); } } } }   } k++; }   for (int i=0; i<11; i++){ short y = (short)(i); sheet.autoSizeColumn(y, true); sheet.setColumnWidth(y,(short)10000); } /*for (int i=sheet.getFirstRowNum(); i<sheet.getLastRowNum(); i++) { sheet.autoSizeColumn(i); } */ //my_sheet.setAutoFilter(CellRangeAddress.valueOf("A1:C5")); String nomFichier = "ESP_carnet_de_sante_"+ trigramme_BAT+ ".xls"; FileOutputStream fileOut = new FileOutputStream(cheminFichier+nomFichier); wb.write(fileOut);   fileOut.close();

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J'ai plusieurs problèmes:

1. 1 apparement mes dates ne sont pas bien récupérés
2. 2 j'aimerai faire une mise en forme pour certaines cellules selon le contenu à savoir si elle contient une date ou "/" et selon quand est cette date
3. 3 lorsque j'arrive à mes conditions j'ai un joli "java.lang.NullPointer.Exception"