We can create a
dynamic macro enabled excel by java:
We need to create
a excel sheet template with macro on server.
we can copy the
macro in a new excel sheet and write the data in that excel sheet.
We can create a
rule by which we can poluate the list in excel on the basis of
previous selected cell value
For this we need a
jar: POI 3.08
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static String strHost = null; /** * Instantiates a new macro enabled excel template action. */ public MacroEnabledExcelTemplateAction() { super(); logger.debug("****In the constructor of MacroEnabledExcelTemplateAction**"); } /* * (non-Javadoc) * * @see org.apache.struts.action.Action#execute(org.apache.struts.action. * ActionMapping, org.apache.struts.action.ActionForm, * javax.servlet.http.HttpServletRequest, * javax.servlet.http.HttpServletResponse) */ @Override public ActionForward execute(ActionMapping mapping, ActionForm form, HttpServletRequest request, HttpServletResponse response) throws IOException, ServletException { logger.debug("ENTRY MacroEnabledExcelTemplateAction execute"); /* * Variables declaration */ HttpSession session = null; String userId = ""; String tempPath = ""; int newCellMainSheet = 0; int newRowMainSheet = 1; int totalNumberOfRows = 10; boolean existFolderAtServer = true; boolean deletedDir = false; ArrayList<String> errors = null; ArrayList<String> msg = null; final boolean hasAccess = true; InputStream inputFile = null; FileOutputStream outputFile = null; InputStream inputFile2 = null; File file = null; File existFile = null; DataValidationHelper dvHelper = null; DataValidationConstraint dvConstraint = null; DataValidation validation = null; CellRangeAddressList addressList = null; Row mainSheetRow = null; Cell mainSheetCell = null; HSSFCellStyle cs = null; HSSFCellStyle cs1 = null; HSSFCellStyle headerCS = null; HSSFCellStyle backgroundColor = null; HSSFFont font = null; HSSFFont font1 = null; HSSFFont headerFont = null; HSSFWorkbook wb = null; HSSFWorkbook wb2 = null; MacroEnabledExcelTemplateBus macroEnabledExcelTemplateBus; try { session = request.getSession(true); macroEnabledExcelTemplateBus = new MacroEnabledExcelTemplateBus(); errors = new ArrayList<String>(); msg = new ArrayList<String>(); /* * Server folder path */ tempPath = "C:\Documents and Settings\Raj\Desktop\Excel work"; // Use the server path where excel sheet templated to be uploaded logger.debug("Temp Folder path i.e. Server Folder :" + tempPath); if (userId != null) { logger.debug("user id not null"); try { if (hasAccess) { // temp folder path for creating a temp template // We are creating a tempoarary template (person sprecific) so that more than one user can use the functuionality and // original template remain uncorrupted tempFolderPath = tempPath + "\" + userId; existFile = new File(tempFolderPath); logger.debug("existFile"); /* * checking whether the folder already exists on the * given path */ if (existFile.exists()) { // deleting the existing directory existFolderAtNAS = MacroEnabledExcelTemplateBus.deleteDir(existFile); logger.debug("existFolderAtServer "+ existFolderAtServer); } if (existFolderAtServer) { file = new File(tempFolderPath); // Creates the directory boolean b = file.mkdir(); if (b) { // template with macros at sever inputFile = new FileInputStream(tempPath+ "\Template.xls"); /* * copy the excel template with macro. True * is for copying all the attributes of * workbook */ wb = new HSSFWorkbook(new POIFSFileSystem(inputFile), true); /* * writing the copied workbook to a new temp * template for processing */ outputFile = new FileOutputStream(tempFolderPath+ "\tempTemplate.xls"); wb.write(outputFile); /* * Processing the temp template */ inputFile2 = new FileInputStream(tempFolderPath+ "\tempTemplate.xls"); wb2 = new HSSFWorkbook(new POIFSFileSystem(inputFile2), true); /* * Building a data sheet and hide it. Data * sheet number is 1. */ macroEnabledExcelTemplateBus.buildDataSheet(wb2); wb2.setSheetHidden(1, true); /* * Writing the data in main sheet */ Sheet outputSheet = wb2.getSheetAt(0); // Setting the name of main sheet wb2.setSheetName(0, "MAIN DATA Sheet"); // Creating the style for main sheet cs = wb2.createCellStyle(); cs.setBorderBottom(CellStyle.BORDER_THIN); cs.setBorderLeft(CellStyle.BORDER_THIN); cs.setBorderRight(CellStyle.BORDER_THIN); // creating the font for main sheet font = wb2.createFont(); font.setFontName("Arial"); // name of font font.setFontHeight((short) 200); // for setting the font we need to multiply the font size by 20. // For eg. setting font size 10, you need to multiply it by 20 i.e. 200. cs.setFont(font); /* * Getting the data for main sheet from DB */ mainSheetData = macroEnabledExcelTemplateBus.getDataForMainSheet(parameter1, parameter2); totalNumberOfRows = mainSheetData.length; /* * adding Action Type validations */ addressList = new CellRangeAddressList(1,totalNumberOfRows, 0, 0); dvHelper = outputSheet.getDataValidationHelper(); dvConstraint = dvHelper.createFormulaListConstraint("Action"); // name od the list to be populated in excel sheet validation = dvHelper.createValidation(dvConstraint, addressList); outputSheet.addValidationData(validation); addressList = null; if (mainSheetData != null && mainSheetData.length > 0) { for (int rowCount = 0; rowCount < mainSheetData.length; ++rowCount) { // creating a new row for every record mainSheetRow = outputSheet.createRow(newRowMainSheet); // creating a new cell mainSheetCell = mainSheetRow.createCell(newCellMainSheet); // writing the value in the cell mainSheetCell.setCellValue(""); // fetched it from db mainSheetData[rowCount][6] // apply the css mainSheetCell.setCellStyle(cs); // setting the column width //we can give the integer value in palce of auto. outputSheet.setColumnWidth(newCellMainSheet, auto); // INCREASE THE VALUE TO CREATE A NEW CELL ++newCellMainSheet; // entity id data mainSheetCell = mainSheetRow.createCell(newCellMainSheet); // setting the cell datatype by default it is string mainSheetCell.setCellType(Cell.CELL_TYPE_NUMERIC); //writing the integer or double value mainSheetCell.setCellValue(Double.parseDouble(mainSheetData[rowCount][6])); outputSheet.setColumnWidth(newCellMainSheet, 2560); mainSheetCell.setCellStyle(cs); ++newCellMainSheet; /* * adding validations dat geeting populated on the basis of previous selected cellvalue */ // 5 is column number from which the below validation applies // 6 is column number upto which the below validation applies addressList = new CellRangeAddressList(rowCount + 1, rowCount + 1,5, 6); dvHelper = outputSheet.getDataValidationHelper(); dvConstraint = dvHelper .createFormulaListConstraint("INDIRECT(SUBSTITUTE(SUBSTITUTE(SUBSTITUTE(SUBSTITUTE(SUBSTITUTE(SUBSTITUTE($E$" + (rowCount + 2)+ ","&",""),"-",""),"/",""),",",""),"~","")," ",""))"); validation = dvHelper.createValidation(dvConstraint,addressList); outputSheet.addValidationData(validation); addressList = null; // reset the cell value to 0 for creatibng the cell for new row newCellMainSheet = 0; // creating the new row. ++newRowMainSheet; } } // setting the content to response response.setContentType("application/vnd.openxmlformats-officedocument.spreadsheetml"); // setting the header name of excel sheet response.setHeader("Content-Disposition","attachment; filename=MACROEXCEL.xls"); wb2.write(response.getOutputStream()); // deleting the temp template and directory deletedDir = macroEnabledExcelTemplateBus.deleteDir(existFile); } else { logger.debug("Couldn't make a new folder."); // Couldn't make a new folder } } else { logger.debug("Folder already exists. getting error while deleting"); // Folder already exists. getting error while deleting it. } } } } } catch (FileNotFoundException fnfe) { logger.debug("error " + fnfe); } catch (IOException ioe) { logger.debug("error " + ioe); } catch (Exception e) { logger.debug("error " + e); } finally { // Flushing all the file streams inputFile.close(); outputFile.close(); inputFile2.close(); wb2 = null; wb = null; file = null; existFile = null; } }else { logger.debug("user id is null"); } } catch (NullPointerException npe) { logger.debug("error " + npe); } catch (Exception e1) { logger.debug("error " + e1); } return null; }}==============================================================================/** class MacroEnabledExcelTemplateBus*/package com.tcs.reuse.business;import java.io.File;import java.sql.SQLException;import java.text.DateFormat;import java.text.SimpleDateFormat;import java.util.ArrayList;import java.util.Calendar;import org.apache.commons.lang.StringUtils;import org.apache.log4j.Logger;import org.apache.poi.hssf.usermodel.HSSFCellStyle;import org.apache.poi.hssf.usermodel.HSSFRichTextString;import org.apache.poi.hssf.usermodel.HSSFWorkbook;import org.apache.poi.hssf.util.HSSFColor;import org.apache.poi.ss.usermodel.Cell;import org.apache.poi.ss.usermodel.Name;import org.apache.poi.ss.usermodel.Row;import org.apache.poi.ss.usermodel.Sheet;// TODO: Auto-generated Javadoc/** * The Class MacroEnabledExcelTemplateBus. * */@SuppressWarnings("deprecation")public class MacroEnabledExcelTemplateBus { /** The logger. */ private static Logger logger = Logger.getLogger(package com.tcs.reuse.business.MacroEnabledExcelTemplateBus.class); /** * Builds the data sheet as tthe dummay databse to fetch the values for list in excel. * * @param dataSheet * the data sheet * @throws SQLException * the sQL exception */ public void buildDataSheet(HSSFWorkbook workbook) throws SQLException{ Row row = null; Cell cell = null; Name name = null; String[][] countriesList = null; String[][] coverageTypeList = null; String poleTypeList[][] = null; String[][] iFGList = null; String[][] businessList = null; String[][] subBusinessList = null; String cellValue = ""; String columnName = "A"; int newCell = 0; int newRow = 0; Sheet dataSheet = workbook.createSheet("DataSheet"); HSSFCellStyle style = workbook.createCellStyle(); style.setBorderBottom((short) 10); // single line border style.setFillForegroundColor(HSSFColor.RED.index); /** * action data mapping starts new row value = 1 new cell number = 0; */ // CREATING CELL FOR HEADER IN DATASHEET row = dataSheet.createRow(newRow); ++newRow; cell = row.createCell(newCell); cell.setCellValue("Action"); cell.setCellStyle(style); // WRITING ALL THE Actions row = dataSheet.createRow(newRow); ++newRow; ++newRow; cell = row.createCell(newCell); cell.setCellValue(new HSSFRichTextString("Add")); ++newCell; cell = row.createCell(newCell); cell.setCellValue(new HSSFRichTextString("Update")); ++newCell; cell = row.createCell(newCell); cell.setCellValue(new HSSFRichTextString("Delete")); // CREATING THE FORMULA RANGE FOR Action columnName = getCellColumnCount(3); String actionFormulaRange = "Datasheet!$A$" + (newRow - 1) + ":$"+ columnName + "$" + (newRow - 1); // SETTING THE NAME OF THE Action LIST name = dataSheet.getWorkbook().createName(); // Name of List name.setNameName("Action"); name.setRefersToFormula(actionFormulaRange); newCell = 0; // password protecting the datasheet dataSheet.protectSheet("password"); } // end of build datasheet method /** * Gets the data for main sheet. * * @param listSize * the list size * @return the data for main sheet * * @storeProcedureParams */ public String[][] getDataForMainSheet(String parameter1, String parameter2 ) throws SQLException { String[][] dataForMainSheet = null; ArrayList tempData = null; DBUtilParam params = new DBUtilParam(3); try { // fetch the resuklt set from DB } catch (WFException wfe) { throw wfe; } catch (Exception e) { // } finally { params = null; } return dataForMainSheet; } /** * Cell column count for determining the last column number in excel. * * @param listSize * the list size * @return the string * @limitations maximum listSize 702 */ public String getCellColumnCount(int listSize) { String columnName = "A"; String alphabetArray[] = { "A", "B", "C", "D", "E", "F", "G", "H", "I", "J", "K", "L", "M", "N", "O", "P", "Q", "R", "S", "T", "U", "V", "W", "X", "Y", "Z" }; int firstCharIndex = listSize / 26; int secondCharIndex = listSize % 26; if (firstCharIndex == 0 && secondCharIndex != 0) { columnName = alphabetArray[secondCharIndex - 1]; } else if (firstCharIndex != 0 && secondCharIndex == 0) { columnName = alphabetArray[firstCharIndex - 1]; } else { columnName = alphabetArray[firstCharIndex - 1] + alphabetArray[secondCharIndex - 1]; } return columnName; } /** * Replace special char from list name with blank. * * @param listName * the list name * @return the string */ public String replaceSpecialCharFromName(String listName) { String arrSpecialChar[] = { "&", "-", "/", ",", "~", " " }; String newString = listName; for (int i = 0; i < arrSpecialChar.length; i++) newString = StringUtils.replace(newString, arrSpecialChar[i], ""); return newString; } /** * Deletes all files and subdirectories under dir. Returns true if all * deletions were successful. If a deletion fails, the method stops * attempting to delete and returns false. * * @param dir * @return boolean */ public static boolean deleteDir(File dir) { if (dir.isDirectory()) { String[] children = dir.list(); for (int i = 0; i < children.length; i++) { boolean success = deleteDir(new File(dir, children[i])); if (!success) { return false; } } } // The directory is now empty so delete it return dir.delete(); }} |
