Develop Reference

XWPFTable create new row (looping)

I have a problem about how to loop data using XWPFTable?
i have some problems;
I am confused why XWPFRun examRun = examInfoRowP.createRun();
(automatically reads the 2nd column, not the 1st column first)
My coding structure, I think it is less efficient in using XWPFTable, how to make it cleaner code
note:
List listLHA is the data
I'm using apache-poi 3.8
XWPFTable Table = document.getTableArray(16);
XWPFTableRow getRow1 = Table.getRow(1);
XWPFTableRow getRow0 = Table.getRow(0);
//baris 1
for(int i = 0; i < listLHA.size(); i++) {
getRow0.getCell(0).setText(listLHA.get(0).getKeyProsses()+ " KEY PROSES");
break;
}
//baris 2
for(int i = 0; i < listLHA.size(); i++) {
getRow1.getCell(0).setText(listLHA.get(0).getRiskRating());
getRow1.getCell(1).setText(listLHA.get(0).getAuditObservationTitle()+ " AO TITLE");
break;
}
XWPFTableRow examInfoRow = Table.createRow();
XWPFTableCell cellRowInfo = examInfoRow.addNewTableCell();
XWPFParagraph examInfoRowP = cellRowInfo.getParagraphs().get(0);
XWPFRun examRun = examInfoRowP.createRun(); //problem 1
examInfoRowP.setAlignment(ParagraphAlignment.LEFT);
//list Action plan
examRun.setText("Action Plan:");
examRun.addBreak();
for (AuditEngagementLHA lha : listLHA) {
int i = listLHA.indexOf(lha);
examRun.setText(i+1 +"."+lha.getDescAP().replaceAll("\\<[^>]*>",""));
examRun.addBreak();
}
for(int i = 0; i < listLHA.size(); i++) {
examRun.setText("Target Date: ");
examRun.setText(listLHA.get(0).getTargetDateAP());
examRun.addBreak();
break;
}
examRun.addBreak();
for(int i = 0; i < listLHA.size(); i++) {
examInfoRow.getCell(0).setText(listLHA.get(0).getDescAO()+" Desc AO");
examRun.addBreak();
break;
}
//List penanggung jawab
examRun.setText("Penanggung Jawab:");
examRun.addBreak();
for (AuditEngagementLHA lha : listLHA) {
int i = listLHA.indexOf(lha);
examRun.setText(i+1 +"."+lha.getPicAP()+" - ");
examRun.setText(lha.getJabatanPicAP());
examRun.addBreak();
}
*my word template is like this
*the result from now is like this
*and the result should be like this and neat

Apache POI is highly in development. Therefore, versions become obsolete very quickly. The version apache poi 3.8 was released in 2012. It is much too old to be used ten years later in 2022.
To your first question:
According to the documentation XWPFTable.createRow creates a new XWPFTableRow object with as many cells as the number of columns defined in that moment.
So in your case XWPFTableRow examInfoRow = Table.createRow(); creates a examInfoRow which has at least two columns already, since the table contains at least two columns already from rows above.
Then XWPFTableCell cellRowInfo = examInfoRow.addNewTableCell(); adds an additional column by adding a new table cell to that row. That's why cellRowInfo will not be in 1st column.
Your second question is too broad to be completely answered here.
What I can tell you is that Word tables are beastly things. They have a underlying table grid defining the columns. And if rows need different column sizes, then setting column spans is necessary, just like in HTML tables too. The table, you show as the wanted result, contains three columns. In first row the first column spans the others. In second row the second column spans the third. In third row the first column spans the second. That's the only way to produce those different columns for each row.
Knowing this one should avoid to mess with inserting and/or adding or creating table cells. If a template is possible, then that template should contain all possible row templates already. Then only copying the rows is necessary instead of messing around with inserting cells.
Complete example:
Template:
Code:
import java.io.FileOutputStream;
import java.io.FileInputStream;
import org.apache.poi.xwpf.usermodel.*;
import org.openxmlformats.schemas.wordprocessingml.x2006.main.CTRow;
import java.util.List;
import java.util.ArrayList;
public class WordInsertContentInTable {
static void setText(XWPFTableCell cell, String text) {
String[] lines = text.split("\n");
List<XWPFParagraph> paragraphs = cell.getParagraphs();
for (int i = 0; i < lines.length; i++) {
String line = lines[i];
XWPFParagraph paragraph = null;
if (paragraphs.size() > i) paragraph = paragraphs.get(i);
if (paragraph == null) paragraph = cell.addParagraph();
XWPFRun run = null;
if (paragraph.getRuns().size() > 0) run = paragraph.getRuns().get(0);
if (run == null) run = paragraph.createRun();
run.setText(line, 0);
}
for (int i = paragraphs.size()-1; i >= lines.length; i--) {
cell.removeParagraph(i);
}
}
static void insertContentInTable(XWPFTable table, List<POJO> listOfPOJOs) throws Exception {
XWPFTableRow titleRowTemplate = table.getRow(0);
if (titleRowTemplate == null) throw new Exception("Table template does not match: No title row.");
if (titleRowTemplate.getTableCells().size() != 1) throw new Exception("Table template does not match: Wrong title row column count.");
XWPFTableRow subTitleRowTemplate = table.getRow(1);
if (subTitleRowTemplate == null) throw new Exception("Table template does not match: No sub title row.");
if (subTitleRowTemplate.getTableCells().size() != 2) throw new Exception("Table template does not match: Wrong sub title row column count.");
XWPFTableRow contentRowTemplate = table.getRow(2);
if (contentRowTemplate == null) throw new Exception("Table template does not match: No content row.");
if (contentRowTemplate.getTableCells().size() != 2) throw new Exception("Table template does not match: Wrong content row column count.");
XWPFTableRow titleRow = titleRowTemplate;
XWPFTableRow subTitleRow = subTitleRowTemplate;
XWPFTableRow contentRow = contentRowTemplate;
XWPFTableCell cell;
for (int i = 0; i < listOfPOJOs.size(); i++) {
POJO pojo = listOfPOJOs.get(i);
if (i > 0) {
titleRow = new XWPFTableRow((CTRow)titleRowTemplate.getCtRow().copy(), table);
subTitleRow = new XWPFTableRow((CTRow)subTitleRowTemplate.getCtRow().copy(), table);
contentRow = new XWPFTableRow((CTRow)contentRowTemplate.getCtRow().copy(), table);
}
String titleRowText = pojo.getTitleRowText();
cell = titleRow.getCell(0);
setText(cell, titleRowText);
String subTitleRowLeftText = pojo.getSubTitleRowLeftText();
String subTitleRowLeftColor = pojo.getSubTitleRowLeftColor();
String subTitleRowRightText = pojo.getSubTitleRowRightText();
cell = subTitleRow.getCell(0);
setText(cell,subTitleRowLeftText);
cell.setColor(subTitleRowLeftColor);
cell = subTitleRow.getCell(1);
setText(cell,subTitleRowRightText);
String contentRowLeftText = pojo.getContentRowLeftText();
String contentRowRightText = pojo.getContentRowRightText();
cell = contentRow.getCell(0);
setText(cell, contentRowLeftText);
cell = contentRow.getCell(1);
setText(cell, contentRowRightText);
if (i > 0) {
table.addRow(titleRow);
table.addRow(subTitleRow);
table.addRow(contentRow);
}
}
}
public static void main(String[] args) throws Exception {
List<POJO> listOfPOJOs = new ArrayList<POJO>();
listOfPOJOs.add(new POJO("Title row text 1",
"Sub title row left text 1", "FF0000", "Sub title row right text 1\nSub title row right text 1\nSub title row right text 1",
"Content row left text 1\nContent row left text 1\nContent row left text 1",
"Content row right text 1\nContent row right text 1\nContent row right text 1"));
listOfPOJOs.add(new POJO("Title row text 2",
"Sub title row left text 2", "00FF00", "Sub title row right text 2\nSub title row right text 2",
"Content row left text 2\nContent row left text 2",
"Content row right text 2\nContent row right text 2"));
listOfPOJOs.add(new POJO("Title row text 3",
"Sub title row left text 3", "0000FF", "Sub title row right text 3",
"Content row left text 3",
"Content row right text 3"));
XWPFDocument document = new XWPFDocument(new FileInputStream("./WordTenplate.docx"));
XWPFTable table = document.getTableArray(0);
insertContentInTable(table, listOfPOJOs);
FileOutputStream out = new FileOutputStream("./WordResult.docx");
document.write(out);
out.close();
document.close();
}
static class POJO {
private String titleRowText;
private String subTitleRowLeftText;
private String subTitleRowLeftColor;
private String subTitleRowRightText;
private String contentRowLeftText;
private String contentRowRightText;
public POJO ( String titleRowText,
String subTitleRowLeftText,
String subTitleRowLeftColor,
String subTitleRowRightText,
String contentRowLeftText,
String contentRowRightText ) {
this.titleRowText = titleRowText;
this.subTitleRowLeftText = subTitleRowLeftText;
this.subTitleRowLeftColor = subTitleRowLeftColor;
this.subTitleRowRightText = subTitleRowRightText;
this.contentRowLeftText = contentRowLeftText;
this.contentRowRightText = contentRowRightText;
}
public String getTitleRowText() {
return this.titleRowText;
}
public String getSubTitleRowLeftText() {
return this.subTitleRowLeftText;
}
public String getSubTitleRowLeftColor() {
return this.subTitleRowLeftColor;
}
public String getSubTitleRowRightText() {
return this.subTitleRowRightText;
}
public String getContentRowLeftText() {
return this.contentRowLeftText;
}
public String getContentRowRightText() {
return this.contentRowRightText;
}
}
}
Result:
This code is minimized to show the principle. If text formatting is necessary, then the method setText(XWPFTableCell cell, String text) needs to be extended. Text formatting in Word needs XWPFRuns for each text which shall be formatted different. Of course also the POJO needs fields to determine the needed formatting then.

How to format merged cell as currency in excel using java?

i have merged the cell using apache poi and java but i wanted those merged cell to formats as currency.
after merged the cell in the code i added the cellstyle.setDataformat((short)8); but when i open the excel it is not showing format as currency . it shows as general.
Could you please share a working code to merge a cell with data format as currency ?
thank you in advance.

It is not really clear from your question what exactly is the problem here. There is no special requirement for cells having number format whether in merged regions or not.
What one needs to know is that merged regions only show the top left cell in whole merged region. That means the cell value as well as the cell style of the top left cell in whole merged region gets used.
The following is a minimal, reproducible example to show this.
import java.io.FileOutputStream;
import org.apache.poi.ss.usermodel.*;
import org.apache.poi.ss.util.CellRangeAddress;
import org.apache.poi.xssf.usermodel.XSSFWorkbook;
class CreateExcelMergedCellsCurrencyFormat {
public static void main(String[] args) throws Exception {
Object[][] data = new Object[][] {
new String[] {"Name", "va", "lu", "es"},
new Object[] {"a", 123.456d, null, null},
new Object[] {"b", 0, null, null},
new Object[] {"c", -123.456d, null, null},
new Object[] {"d", 1000000L, null, null},
new Object[] {"e", -1000000, null, null}
};
int firstRow = 3;
int firstCol = 2;
int mergeFromCol = firstCol + 1;
int mergeToCol = firstCol + 3;
try (Workbook workbook = new XSSFWorkbook();
FileOutputStream fileout = new FileOutputStream("./Excel.xlsx") ) {
CellStyle currencyStyle = workbook.createCellStyle();
currencyStyle.setDataFormat(workbook.createDataFormat().getFormat(BuiltinFormats.getBuiltinFormat(8)));
Sheet sheet = workbook.createSheet();
int r = firstRow;
for (Object[] rowData : data) {
Row row = sheet.createRow(r);
int c = firstCol;
for (Object cellValue : rowData) {
Cell cell = row.createCell(c);
if (cellValue instanceof String) {
cell.setCellValue((String)cellValue);
} else if (cellValue instanceof Number) {
cell.setCellValue(((Number)cellValue).doubleValue());
cell.setCellStyle(currencyStyle);
}
c++;
}
if (r > firstRow) sheet.addMergedRegion(new CellRangeAddress(row.getRowNum(), row.getRowNum(), mergeFromCol, mergeToCol));
r++;
}
workbook.write(fileout);
}
}
}

POI Word Unable to merge newly created cell vertically

I know how to merge cells vertically with Apache POI word. But it seems if a new row is created, the merge won't take effect.
Here is the input table:
I wish to add a new row between old row 2 and old row 3, and have the new row's cell at first column merged into C2, like this:
So I created a new row and added it to the table below old row 2, and attempt to merge the cells
github source code link is here, it can reproduce the problem.
public class POIWordAddSubRowQuestionDemo{
public static void main(String[] args) throws IOException, XmlException{
ClassLoader classLoader = POIWordAddSubRowQuestionDemo.class.getClassLoader();
InputStream inputStream = classLoader.getResourceAsStream("input.docx");
String outputDocxPath = "F:/TEMP/output.docx";
assert inputStream != null;
XWPFDocument doc = new XWPFDocument(inputStream);
XWPFTable table = doc.getTables().get(0);
//this is 'old row 2'
XWPFTableRow secondRow = table.getRows().get(1);
//create a new row that is based on 'old row 2'
CTRow ctrow = CTRow.Factory.parse(secondRow.getCtRow().newInputStream());
XWPFTableRow newRow = new XWPFTableRow(ctrow, table);
XWPFRun xwpfRun = newRow.getCell(1).getParagraphs().get(0).getRuns().get(0);
//set row text
xwpfRun.setText("new row", 0);
// add new row below 'old row 2'
table.addRow(newRow, 2);
//merge cells at first column of 'old row 2', 'new row', and 'old row 3'
mergeCellVertically(doc.getTables().get(0), 0, 1, 3);
FileOutputStream fos = new FileOutputStream(outputDocxPath);
doc.write(fos);
fos.close();
}
static void mergeCellVertically(XWPFTable table, int col, int fromRow, int toRow) {
for(int rowIndex = fromRow; rowIndex <= toRow; rowIndex++) {
XWPFTableCell cell = table.getRow(rowIndex).getCell(col);
CTVMerge vmerge = CTVMerge.Factory.newInstance();
if(rowIndex == fromRow){
// The first merged cell is set with RESTART merge value
vmerge.setVal(STMerge.RESTART);
} else {
// Cells which join (merge) the first one, are set with CONTINUE
vmerge.setVal(STMerge.CONTINUE);
// and the content should be removed
for (int i = cell.getParagraphs().size(); i > 0; i--) {
cell.removeParagraph(0);
}
cell.addParagraph();
}
// Try getting the TcPr. Not simply setting an new one every time.
CTTcPr tcPr = cell.getCTTc().getTcPr();
if (tcPr == null) tcPr = cell.getCTTc().addNewTcPr();
tcPr.setVMerge(vmerge);
}
}
}
But the merge did not work and I got:
In another attempt, I tried to merge based on the table in picture 3 to get the table in picture 2, and it was a success. The only difference between the 2 attempts is that new row was not newly created, but rather read from the docx document, so I believe creating a new row was the reason why merge failed.
So is there a solution for merging newly created rows? I really don't want to split this operation like this: adding rows > saving docx to disk> read docx from disk> merge rows.

The problem you have is not with mergeCellVertically method but with your approach to copy table row. When copying the underlying CTRow and inserting it in CTTbl.TrArray using XWPFTable.addRow it must be fully complete. Later changings are not written in XML. I told that in my answer java Apache POI Word existing table insert row with cell style and formatting already. And I provided a method commitTableRows in my answer Can't change row text in .docx file once row is added to table. This method needs to be called before writing out the document, so the later changes get written in XML.
So because you are copying second row, which is the start of merging, that setting also gets copied. And the later called mergeCellVertically does not take effect. So your newRow remains new start of merging. This is what you get.
So after all changes and before writing out, call commitTableRows.
Complete example:
import java.io.*;
import org.apache.poi.xwpf.usermodel.*;
import org.openxmlformats.schemas.wordprocessingml.x2006.main.*;
public class WordInsertTableRowAndMerge {
static XWPFTableRow insertNewTableRow(XWPFTableRow sourceTableRow, int pos) throws Exception {
XWPFTable table = sourceTableRow.getTable();
CTRow newCTRrow = CTRow.Factory.parse(sourceTableRow.getCtRow().newInputStream());
XWPFTableRow tableRow = new XWPFTableRow(newCTRrow, table);
table.addRow(tableRow, pos);
return tableRow;
}
static void commitTableRows(XWPFTable table) {
int rowNr = 0;
for (XWPFTableRow tableRow : table.getRows()) {
table.getCTTbl().setTrArray(rowNr++, tableRow.getCtRow());
}
}
static void mergeCellVertically(XWPFTable table, int col, int fromRow, int toRow) {
for(int rowIndex = fromRow; rowIndex <= toRow; rowIndex++) {
System.out.println("rowIndex: " + rowIndex);
XWPFTableCell cell = table.getRow(rowIndex).getCell(col);
CTVMerge vmerge = CTVMerge.Factory.newInstance();
if(rowIndex == fromRow){
// The first merged cell is set with RESTART merge value
vmerge.setVal(STMerge.RESTART);
} else {
// Cells which join (merge) the first one, are set with CONTINUE
vmerge.setVal(STMerge.CONTINUE);
// and the content should be removed
for (int i = cell.getParagraphs().size(); i > 0; i--) {
cell.removeParagraph(0);
}
cell.addParagraph();
}
// Try getting the TcPr. Not simply setting an new one every time.
CTTcPr tcPr = cell.getCTTc().getTcPr();
if (tcPr == null) tcPr = cell.getCTTc().addNewTcPr();
tcPr.setVMerge(vmerge);
}
}
public static void main(String[] args) throws Exception {
XWPFDocument doc = new XWPFDocument(new FileInputStream("./source.docx"));
XWPFTable table = doc.getTables().get(0);
XWPFTableRow row = table.getRow(1);
XWPFTableRow newRow = insertNewTableRow(row, 2);
XWPFTableCell cell = newRow.getCell(0); if (cell == null) cell = newRow.addNewTableCell();
// not needed because merged to cell above
cell = newRow.getCell(1); if (cell == null) cell = newRow.addNewTableCell();
for (XWPFParagraph paragraph : cell.getParagraphs()) { // only use first text runs in paragraphs
for (int r = paragraph.getRuns().size()-1; r >= 0; r--) {
XWPFRun run = paragraph.getRuns().get(r);
if (r == 0) {
run.setText("new row 1", 0);
} else {
paragraph.removeRun(r);
}
}
}
mergeCellVertically(table, 0, 1, 3);
commitTableRows(table);
FileOutputStream out = new FileOutputStream("./result.docx");
doc.write(out);
out.close();
doc.close();
}
}

Here's a VBA approach you might like to adapt. It inserts a new row between rows 3 & 4:
Sub Demo()
Application.ScreenUpdating = False
With ActiveDocument.Tables(1)
.Cell(4, 2).Range.InsertBreak (wdColumnBreak)
.Rows.Add
.Cell(2, 1).Merge MergeTo:=.Cell(4, 1)
.Range.Characters.Last.Next.Delete
.Cell(2, 1).Merge MergeTo:=.Cell(5, 1)
End With
Application.ScreenUpdating = True
End Sub

Issue with export CrossTab data into excel sheet using Java Apache POI 3.15 version

I am collecting data from my company portal and trying to export it into an excel sheet. I successfully completed for non-crosstab report data. But the issue is coming when the data has crosstab.
Data:
I have saved in data in ArrayList best on my best understanding.
1.
rowHeader:[Quarter, Subcategory]
2.
rowElement:[2016 Q1, 2016 Q2, 2016 Q3, 2016 Q4, Audio Equipment, Cameras, Computers, Electronics - Miscellaneous, TV's, Video Equipment]
3.
columnHeader:[Year, 2016]
4.
columnHeaders[Quarter, Subcategory, Year, 2016]
5.
metricsColumn:[Metrics, Profit, Profit Forecast, Profit Margin, Revenue, Revenue Forecast]
6.
listData:[[$9,579, $8,823, 19.42%, $49,320, $ 39,456], [$11,449, $9,619, 20.07%, $57,040, $ 53,047], [$4,901, $3,784, 20.02%, $24,480, $ 21,298], [$12,444, $9,525, 19.89%, $62,576, $ 53,815], [$8,820, $8,059, 20.19%, $43,675, $ 35,814], [$16,375, $12,986, 20.44%, $80,130, $ 70,514], [$8,526, $6,929, 15.78%, $54,020, $ 49,698], [$11,602, $9,578, 17.31%, $67,032, $ 63,680], [$4,675, $4,380, 16.83%, $27,780, $ 25,752], [$11,699, $9,421, 16.60%, $70,469, $ 54,966], [$9,386, $7,179, 17.52%, $53,563, $ 49,974], [$10,150, $9,213, 16.96%, $59,864, $ 48,490], [$8,508, $6,772, 17.16%, $49,571, $ 47,092], [$16,429, $13,529, 18.52%, $88,712, $ 83,389], [$6,009, $5,391, 18.05%, $33,295, $ 29,200], [$11,792, $9,791, 17.21%, $68,534, $ 64,285], [$9,243, $7,952, 17.15%, $53,886, $ 49,953], [$14,282, $11,679, 18.03%, $79,193, $ 74,441], [$10,999, $8,538, 15.60%, $70,511, $ 65,575], [$14,475, $11,433, 16.32%, $88,718, $ 78,515], [$5,765, $5,029, 16.77%, $34,373, $ 31,847], [$11,335, $9,567, 15.28%, $74,168, $ 62,672], [$11,990, $11,230, 16.83%, $71,255, $ 64,414], [$13,864, $11,328, 16.87%, $82,203, $ 70,695]]
Till so far, I successfully, completed exporting Headers section.
I am struggling, now exporting data into an excel sheet because of the crosstab we need to do column merge and row merge for every Quarters and Years.
If someone can help me, to write any sample code/ pseudo code for it, it would be a very very helpful for me. I ave stuck with this issue from the last 4 days. I am not getting how to do this part as I never used any exclsheet API. here I am using APACHE POI -3.15 version.
Code till so far, which export Header section:
//Create a Row
Row headerRow = sheet.createRow(0);
//int totalcolumns = rowHeader.size() + columnHeader.size();
int mergeHeader = 0;
if(metricsColumn != null) {
mergeHeader = 1;
}
//Create Cells //[Quarter, Subcategory, Year, 2016]
int j = rowHeader.size();
int row = 0;
for (int i = 0; i < columnHeaders.size(); i++) {
Cell cell = headerRow.createCell(i);
cell.setCellValue(columnHeaders.get(i));
if(j > 0) {
sheet.addMergedRegion(new CellRangeAddress(row, mergeHeader, i, i));
}
j--;
if (i == columnHeaders.size() - 1 && metricsColumn.size() > 0) {
sheet.addMergedRegion(new CellRangeAddress(0,0,i,i + metricsColumn.size() - 2));
}
cell.setCellStyle(headerCellStyle);
}
int k = 0;
int rowNum1 = 1;
int cellNum1 = 2;
Row row1 = sheet.createRow(rowNum1);
for (int i = rowHeader.size(); i < metricsColumn.size(); i++) {
while (k < metricsColumn.size()) {
Cell cell = row1.createCell(cellNum1++);
cell.setCellValue(metricsColumn.get(k));
cell.setCellStyle(headerCellStyle);
k++;
}
}

I would make the structures for headers and data a little bit different:
The headers for example:
String[][] headers = new String[][] {
new String[] {"Quarter", "Subcategory", "Year", "2016", null, null, null, null},
new String[] { null, null, "Metrics", "Profit", "Profit Forecast", "Profit Margin", "Revenue", "Revenue Forecast"}
};
Maybe List<List<String>> also would be possible.
The row headers:
String[] quarters = new String[]{"2016 Q1", "2016 Q2", "2016 Q3", "2016 Q4"};
String[] subcategories = new String[]{"Audio Equipment", "Cameras", "Computers", "Electronics - Miscellaneous", "TV's", "Video Equipment"};
Maybe List<String> also would be possible.
The values:
Double[][] values = new Double[][]{
new Double[]{9579d, 8823d, .1942, 49320d,39456d},
new Double[]{11449d, 9619d, .2007, 57040d, 53047d},
...
new Double[]{13864d, 11328d, .1687, 82203d, 70695d}
};
Maybe List<List<Double>> also would be possible.
Then I would also provide basic formatting instructions in structures. So it is later possible to set them using loops.
For example the basic table structure:
int[] columnWidths = new int[]{15*256, 15*256, 15*256, 13*256, 13*256, 13*256, 13*256, 13*256};
For example the headers horizontal alignment:
HorizontalAlignment[][] horizontalAlignments = new HorizontalAlignment[][]{
new HorizontalAlignment[]{HorizontalAlignment.LEFT, HorizontalAlignment.CENTER, HorizontalAlignment.LEFT, HorizontalAlignment.CENTER, null, null, null, null},
new HorizontalAlignment[]{null, null, HorizontalAlignment.RIGHT, HorizontalAlignment.CENTER, HorizontalAlignment.CENTER, HorizontalAlignment.CENTER, HorizontalAlignment.CENTER, HorizontalAlignment.CENTER}
};
And the merged regions for the headers:
int[][] headerMergedRegions = new int[][]{
new int[]{0, 0, 3, 7},
new int[]{0, 1, 0, 0},
new int[]{0, 1, 1, 1}
};
Then I would set the much used number formats in default column styles:
String[] columnCellStyles = new String[]{"default", "default", "default", "currency", "currency", "percent", "currency", "currency"};
...
// creating default cell style having default font
CellStyle defaultCellStyle = workbook.createCellStyle();
defaultCellStyle.setFont(defaultFont);
// we need currency style for numbers later
CellStyle currency = workbook.createCellStyle();
currency.cloneStyleFrom(defaultCellStyle);
currency.setDataFormat(format.getFormat("$#,##0"));
// we need percent style for numbers later
CellStyle percent = workbook.createCellStyle();
percent.cloneStyleFrom(defaultCellStyle);
percent.setDataFormat(format.getFormat("0.00%"));
...
// set default column styles
for (int c = 0; c < columnCellStyles.length; c++) {
String style = columnCellStyles[c];
if ("default".equals(style)) {
sheet.setDefaultColumnStyle(c, defaultCellStyle);
} else if ("currency".equals(style)) {
sheet.setDefaultColumnStyle(c, currency);
} else if ("percent".equals(style)) {
sheet.setDefaultColumnStyle(c, percent);
}
}
So when we set the values later, the cell styles can come from default column style. For this a method CellStyle getPreferredCellStyle(Cell cell) could be used.
For formatting I would rely on methods from CellUtil. So not all needed CellStyles needs to be created on workbook level but can be set to the cell into the loops.
For cell borders I would use PropertyTemplate. This makes setting borders much more easier.
Complete example:
import java.io.FileOutputStream;
import org.apache.poi.ss.usermodel.*;
import org.apache.poi.xssf.usermodel.XSSFWorkbook;
import org.apache.poi.xssf.usermodel.XSSFCell;
import org.apache.poi.hssf.usermodel.HSSFCell;
import org.apache.poi.ss.util.CellRangeAddress;
import org.apache.poi.ss.util.CellUtil;
import org.apache.poi.ss.util.PropertyTemplate;
import java.util.Map;
import java.util.HashMap;
class CreateExcelSpecial {
static CellStyle getPreferredCellStyle(Cell cell) {
// a method to get the preferred cell style for a cell
// this is either the already applied cell style
// or if that not present, then the row style (default cell style for this row)
// or if that not present, then the column style (default cell style for this column)
CellStyle cellStyle = cell.getCellStyle();
// if no explicit cell style applied then cellStyle.getIndex() is 0 for XSSF
// or 15 (0xF = the index to the default ExtendedFormatRecord (0xF)) for HSSF
if ((cell instanceof XSSFCell && cellStyle.getIndex() == 0) || (cell instanceof HSSFCell && cellStyle.getIndex() == 15)) cellStyle = cell.getRow().getRowStyle();
if (cellStyle == null) cellStyle = cell.getSheet().getColumnStyle(cell.getColumnIndex());
if (cellStyle == null) cellStyle = cell.getCellStyle();
return cellStyle;
}
public static void main(String[] args) throws Exception {
// the data
// basic table structure
int[] columnWidths = new int[]{15*256, 15*256, 15*256, 13*256, 13*256, 13*256, 13*256, 13*256};
String[] columnCellStyles = new String[]{"default", "default", "default", "currency", "currency", "percent", "currency", "currency"};
// headers content and formatting
String[][] headers = new String[][] {
new String[] {"Quarter", "Subcategory", "Year", "2016", null, null, null, null},
new String[] { null, null, "Metrics", "Profit", "Profit Forecast", "Profit Margin", "Revenue", "Revenue Forecast"}
};
HorizontalAlignment[][] horizontalAlignments = new HorizontalAlignment[][]{
new HorizontalAlignment[]{HorizontalAlignment.LEFT, HorizontalAlignment.CENTER, HorizontalAlignment.LEFT, HorizontalAlignment.CENTER, null, null, null, null},
new HorizontalAlignment[]{null, null, HorizontalAlignment.RIGHT, HorizontalAlignment.CENTER, HorizontalAlignment.CENTER, HorizontalAlignment.CENTER, HorizontalAlignment.CENTER, HorizontalAlignment.CENTER}
};
VerticalAlignment[][] verticalAlignments = new VerticalAlignment[][]{
new VerticalAlignment[]{VerticalAlignment.TOP, VerticalAlignment.TOP, VerticalAlignment.CENTER, VerticalAlignment.CENTER, null, null, null, null},
new VerticalAlignment[]{null, null, VerticalAlignment.BOTTOM, VerticalAlignment.BOTTOM, VerticalAlignment.BOTTOM, VerticalAlignment.BOTTOM, VerticalAlignment.BOTTOM, VerticalAlignment.BOTTOM}
};
Boolean[][] wrapTexts = new Boolean[][]{
new Boolean[]{false, false, false, false, null, null, null, null},
new Boolean[]{null, null, false, false, true, true, false, true}
};
int[][] headerMergedRegions = new int[][]{
new int[]{0, 0, 3, 7},
new int[]{0, 1, 0, 0},
new int[]{0, 1, 1, 1}
};
// row headers
String[] quarters = new String[]{"2016 Q1", "2016 Q2", "2016 Q3", "2016 Q4"};
String[] subcategories = new String[]{"Audio Equipment", "Cameras", "Computers", "Electronics - Miscellaneous", "TV's", "Video Equipment"};
// data
Double[][] values = new Double[][]{
new Double[]{9579d, 8823d, .1942, 49320d,39456d},
new Double[]{11449d, 9619d, .2007, 57040d, 53047d},
new Double[]{4901d, 3784d, .2002, 24480d, 21298d},
new Double[]{12444d, 9525d, .1989, 62576d, 53815d},
new Double[]{8820d, 8059d, .2019, 43675d, 35814d},
new Double[]{16375d, 12986d, .2044, 80130d, 70514d},
new Double[]{8526d, 6929d, .1578, 54020d, 49698d},
new Double[]{11602d, 9578d, .1731, 67032d, 63680d},
new Double[]{4675d, 4380d, .1683, 27780d, 25752d},
new Double[]{11699d, 9421d, .1660, 70469d, 54966d},
new Double[]{9386d, 7179d, .1752, 53563d, 49974d},
new Double[]{10150d, 9213d, .1696, 59864d, 48490d},
new Double[]{8508d, 6772d, .1716, 49571d, 47092d},
new Double[]{16429d, 13529d, .1852, 88712d, 83389d},
new Double[]{6009d, 5391d, .1805, 33295d, 29200d},
new Double[]{11792d, 9791d, .1721, 68534d, 64285d},
new Double[]{9243d, 7952d, .1715, 53886d, 49953d},
new Double[]{14282d, 11679d, .1803, 79193d, 74441d},
new Double[]{10999d, 8538d, .1560, 70511d, 65575d},
new Double[]{14475d, 11433d, .1632, 88718d, 78515d},
new Double[]{5765d, 5029d, .1677, 34373d, 31847d},
new Double[]{11335d, 9567d, .1528, 74168d, 62672d},
new Double[]{11990d, 11230d, .1683, 71255d, 64414d},
new Double[]{13864d, 11328d, .1687, 82203d, 70695d}
};
try (Workbook workbook = new XSSFWorkbook();
FileOutputStream fileout = new FileOutputStream("./Excel.xlsx") ) {
// we need PropertyTemplate later
PropertyTemplate propertyTemplate = new PropertyTemplate();
// we need properties map for cell styles later
Map<String, Object> properties;
// we need DataFormat later
DataFormat format = workbook.createDataFormat();
// creating default font
Font defaultFont = workbook.createFont();
defaultFont.setFontName("Calibri");
defaultFont.setFontHeightInPoints((short)12);
// we need font in bold and white for headings
Font defaultFontWhite = workbook.createFont();
defaultFontWhite.setFontName("Calibri");
defaultFontWhite.setFontHeightInPoints((short)12);
defaultFontWhite.setBold(true);
defaultFontWhite.setColor(IndexedColors.WHITE.getIndex());
// creating default cell style having default font
CellStyle defaultCellStyle = workbook.createCellStyle();
defaultCellStyle.setFont(defaultFont);
// we need currency style for numbers later
CellStyle currency = workbook.createCellStyle();
currency.cloneStyleFrom(defaultCellStyle);
currency.setDataFormat(format.getFormat("$#,##0"));
// we need percent style for numbers later
CellStyle percent = workbook.createCellStyle();
percent.cloneStyleFrom(defaultCellStyle);
percent.setDataFormat(format.getFormat("0.00%"));
Sheet sheet = workbook.createSheet();
// set column widths
for (int c = 0; c < columnWidths.length; c++) sheet.setColumnWidth(c, columnWidths[c]);
// set default column styles
for (int c = 0; c < columnCellStyles.length; c++) {
String style = columnCellStyles[c];
if ("default".equals(style)) {
sheet.setDefaultColumnStyle(c, defaultCellStyle);
} else if ("currency".equals(style)) {
sheet.setDefaultColumnStyle(c, currency);
} else if ("percent".equals(style)) {
sheet.setDefaultColumnStyle(c, percent);
}
}
int rowIdx = 0; // looping row index
int colIdx = 0; // looping column index
// input and format headers
int i = 0;
for (String[] headerRow : headers) {
Row row = sheet.createRow(rowIdx++);
colIdx = 0;
int j = 0;
for (String header : headerRow) {
Cell cell = row.createCell(colIdx++);
cell.setCellValue(header);
properties = new HashMap<String, Object>();
properties.put(CellUtil.FILL_PATTERN, FillPatternType.SOLID_FOREGROUND);
properties.put(CellUtil.FILL_FOREGROUND_COLOR, IndexedColors.BLUE.getIndex()); //do using only IndexedColors for fills
properties.put(CellUtil.FONT, defaultFontWhite.getIndexAsInt()); // white font
if (horizontalAlignments.length == headers.length) {
HorizontalAlignment[] hAligns = horizontalAlignments[i];
if (hAligns.length == headerRow.length) {
HorizontalAlignment hAlign = hAligns[j];
properties.put(CellUtil.ALIGNMENT, hAlign); // horizontal alignment
}
}
if (verticalAlignments.length == headers.length) {
VerticalAlignment[] hAligns = verticalAlignments[i];
if (hAligns.length == headerRow.length) {
VerticalAlignment vAlign = hAligns[j];
properties.put(CellUtil.VERTICAL_ALIGNMENT, vAlign); // vertical alignment
}
}
if (wrapTexts.length == headers.length) {
Boolean[] isWrapTexts = wrapTexts[i];
if (isWrapTexts.length == headerRow.length) {
Boolean isWrapText = isWrapTexts[j];
properties.put(CellUtil.WRAP_TEXT, isWrapText); // wrap text
}
}
CellUtil.setCellStyleProperties(cell, properties); //do using CellUtil for **add** new properties to already applied cell styles
j++;
}
i++;
}
// set header merged regions
for (int[] mergedRegion : headerMergedRegions) {
if (mergedRegion.length == 4) {
sheet.addMergedRegion(new CellRangeAddress(mergedRegion[0], mergedRegion[1], mergedRegion[2], mergedRegion[3]));
}
}
// draw header borders
propertyTemplate.drawBorders(new CellRangeAddress(0, headers.length-1, 0, headers[0].length-1), BorderStyle.MEDIUM, IndexedColors.WHITE.getIndex(), BorderExtent.ALL); //since we have merged regions we can simply drawing all borders here
// input and format row headers
for (String quarter : quarters) {
Row row = sheet.createRow(rowIdx++);
Cell cell = row.createCell(0); // quarter in column 0 (A)
cell.setCellValue(quarter);
CellUtil.setVerticalAlignment(cell, VerticalAlignment.TOP); // quarter cells are top aligned
for (String subcategory : subcategories) {
cell = row.createCell(1); // subcategory in column 1 (B)
cell.setCellValue(subcategory);
sheet.addMergedRegion(new CellRangeAddress(rowIdx, rowIdx, 1, 2));
row = sheet.createRow(rowIdx++);
}
rowIdx--;
sheet.addMergedRegion(new CellRangeAddress(rowIdx-subcategories.length, rowIdx-1, 0, 0));
}
rowIdx -= quarters.length * subcategories.length; // reset the rowIdx
// input values - number formats came from default column style
for (Double[] rowValues : values) {
Row row = sheet.getRow(rowIdx++); //get the row instead of creating it
colIdx = 3; // values are from column 3 (D) on
for (Double value : rowValues) {
Cell cell = row.createCell(colIdx++);
cell.setCellValue(value);
cell.setCellStyle(getPreferredCellStyle(cell));
}
}
// draw data borders
propertyTemplate.drawBorders(new CellRangeAddress(headers.length, headers.length+values.length-1, 0, headers[0].length-1), BorderStyle.MEDIUM, IndexedColors.LIGHT_ORANGE.getIndex(), BorderExtent.ALL); //since we have merged regions we can simply drawing all borders here
//apply the PropertyTemplate borders
propertyTemplate.applyBorders(sheet);
workbook.write(fileout);
}
}
}

POI Named Cell - Drop down in all the rows does not have all the values

I have a strange issue when i create excel drop downs using Apache POI - Named Cell using below method.
public static void createHugeDropDown(XSSFWorkbook wb) {
int i = 0;
String sheetName = "LOOKUP";
String colName = "COL1";
String mainSheet = "sheet1";
String[] strArray = new String[]{"10", "20", "30"};
XSSFSheet sheet = wb.createSheet(sheetName);
for (String str : strArray) {
sheet.createRow(i++).createCell(0).setCellValue(str);
}
XSSFName namedCell = wb.createName();
namedCell.setNameName(colName);
String reference = sheetName + "!A1:A" + i;
System.out.println(reference);
namedCell.setRefersToFormula(reference);
XSSFSheet sheet1 = wb.getSheet(mainSheet);
int namedCellIndex = wb.getNameIndex(colName);
namedCell = wb.getNameAt(namedCellIndex);
AreaReference aref = new AreaReference(namedCell.getRefersToFormula());
CellReference[] crefs = aref.getAllReferencedCells();
System.out.println("Total Count --> " + crefs.length);
for (int count = 0; count < crefs.length; count++) {
Sheet s = wb.getSheet(crefs[count].getSheetName());
Row r = sheet.getRow(crefs[count].getRow());
Cell c = r.getCell(crefs[count].getCol());
System.out.println("Cell Value" + c.getStringCellValue());
}
DataValidationConstraint constraint = null;
DataValidation dataValidation = null;
CellRangeAddressList addressList = new CellRangeAddressList(0, 100, 2, 2);
DataValidationHelper validationHelper = new XSSFDataValidationHelper(sheet1);
System.out.println(reference);
constraint = validationHelper.createFormulaListConstraint(reference);
dataValidation = validationHelper.createValidation(constraint, addressList);
dataValidation.setSuppressDropDownArrow(true);
wb.getSheet(mainSheet).addValidationData(dataValidation);
}
This creates me a drop down. But the issue is
1) I have 10,20 & 30 in first row
2) Have 20 & 30 alone in second row
3) Have 30 alone in third row.
4) Empty drop down from Fourth row till 100th row.
Can anybody point me the issue in the above code.
I want to display all the 3 values in the drop down in all the rows.