I have come across need to add table or rows inside cell in excel.
I googled but did't found any thing.
Please help me know how to do it.
are you looking for this ?
Workbook wb = new HSSFWorkbook();
//Workbook wb = new XSSFWorkbook();
CreationHelper createHelper = wb.getCreationHelper();
Sheet sheet = wb.createSheet("new sheet");
// Create a row and put some cells in it. Rows are 0 based.
Row row = sheet.createRow((short)0);
// Create a cell and put a value in it.
Cell cell = row.createCell(0);
cell.setCellValue(1);
// Or do it on one line.
row.createCell(1).setCellValue(1.2);
row.createCell(2).setCellValue(
createHelper.createRichTextString("This is a string"));
row.createCell(3).setCellValue(true);
// Write the output to a file
FileOutputStream fileOut = new FileOutputStream("workbook.xls");
wb.write(fileOut);
fileOut.close();
Related
List having data in this format
[{Row ID=7565.0, Product ID=test11223, Postal Code=98103.0}, {Row ID=7567.0, Product ID=test11213, Postal Code=98101.0}] Having more than 100 row ID record like this, I want to store that data in Excel in below format
Row Id Order ID Postal Code
7565 test11233 98103
7567 test11233 98101
Please help to share the code to write a above list data in excel. thnx
With Apache POI you can write any kind of MS Office files.
Here is a quick example how write cells with it.
Workbook wb = new HSSFWorkbook();
//Workbook wb = new XSSFWorkbook();
CreationHelper createHelper = wb.getCreationHelper();
Sheet sheet = wb.createSheet("new sheet");
// Create a row and put some cells in it. Rows are 0 based.
Row row = sheet.createRow(0);
// Create a cell and put a value in it.
Cell cell = row.createCell(0);
cell.setCellValue(1);
// Or do it on one line.
row.createCell(1).setCellValue(1.2);
row.createCell(2).setCellValue(
createHelper.createRichTextString("This is a string"));
row.createCell(3).setCellValue(true);
// Write the output to a file
try (OutputStream fileOut = new FileOutputStream("workbook.xls")) {
wb.write(fileOut);
}
I am trying to read data from one sheet of excel file and write to other sheet of same excel file.I have tried this :
FileInputStream file = new FileInputStream(new File("E:\\excel\\input.xlsx"));
//Create Workbook instance holding reference to .xlsx file
XSSFWorkbook workbook = new XSSFWorkbook(file);
//Get first/desired sheet from the workbook
XSSFSheet sheet = workbook.getSheetAt(0);
//Iterate through each rows one by one
Iterator<Row> rowIterator = sheet.iterator();
while (rowIterator.hasNext())
{
Row row = rowIterator.next();
//For each row, iterate through all the columns
Iterator<Cell> cellIterator = row.cellIterator();
while (cellIterator.hasNext())
{
Cell cell = cellIterator.next();
//Check the cell type and format accordingly
switch (cell.getCellType())
{
case Cell.CELL_TYPE_NUMERIC:
System.out.print((int)cell.getNumericCellValue()+ " ");
break;
case Cell.CELL_TYPE_STRING:
System.out.print(cell.getStringCellValue());
break;
}
}
System.out.println("");
}
file.close();
CreationHelper createHelper = workbook.getCreationHelper();
XSSFSheet newSheet = workbook.createSheet("new sheet");
// Create a row and put some cells in it. Rows are 0 based.
Row row = newSheet.createRow((short)0);
// Create a cell and put a value in it.
Cell cell = row.createCell(0);
cell.setCellValue(1);
// Or do it on one line.
row.createCell(1).setCellValue(1.2);
row.createCell(2).setCellValue(
createHelper.createRichTextString("This is a string"));
row.createCell(3).setCellValue(true);
System.out.println("writing to file");
// Write the output to a file
FileOutputStream fileOut = new FileOutputStream(new File("E:\\excel\\input.xlsx"));
workbook.write(fileOut);
fileOut.close();
I have successfully read data from excel sheet But I am getting exception while writing in new sheet given below
java.io.FileNotFoundException: E:\excel\input.xlsx (The process cannot access the file because it is being used by another process)
This will happen when you are trying to execute this program while the "input.xlsx" file is already opened by another application.
Please close any instance of MS Excel and try to run it again
Just a guess but XSSFWorkbook should be implementing Closeable thus it has a .close() that should be called.
Maybe the file result still in use because of that?
You are probably going to need a middle step there: write to a new file, close the XSSFWorkbook and then copy the new file on the old one that you want to write on
When I add data to second tab in excel sheet. First tab data is not displaying.
If i remove code for second tab, first tab data is visible.
HSSFSheet sheet1 = wb.createSheet("A ");
HSSFSheet sheet2 = wb.createSheet("B");
HSSFFont headerFont = wb.createFont();
headerFont.setBoldweight(Font.BOLDWEIGHT_BOLD);
headerStyle.setFillPattern(HSSFCellStyle.SOLID_FOREGROUND);
headerStyle.setFillForegroundColor(HSSFColor.PALE_BLUE.index);
headerStyle.setFillBackgroundColor(HSSFColor.WHITE.index);
headerStyle.setFont(headerFont);
try
{
FileOutputStream fileOut = new FileOutputStream("C:\\Report.xls");
HSSFRow sessionname = sheet1.createRow(0);
HSSFCell title = sessionname.createCell(0);
title.setCellStyle(headerStyle);
title.setCellValue("Supported cipher Report");
HSSFRow row = sheet1.createRow(5);
HSSFCell cell0 = row.createCell(0);
cell0.setCellStyle(headerStyle);
cell0.setCellValue("One");
HSSFCell cell1 = row.createCell(1);
cell1.setCellStyle(headerStyle);
cell1.setCellValue("two");
HSSFCell cell2 = row.createCell(2);
cell2.setCellStyle(headerStyle);
cell2.setCellValue("three");
HSSFCell cell3 = row.createCell(3);
cell3.setCellStyle(headerStyle);
cell3.setCellValue("four");
HSSFCell cell4 = row.createCell(4);
cell4.setCellStyle(headerStyle);
cell4.setCellValue("five");
if (!list.isEmpty())
{
int rowNumber = 6;
for (Result s : supportedlist)
{
HSSFRow nextrow = sheet1.createRow(rowNumber);
nextrow.createCell(0).setCellValue(s.One());
nextrow.createCell(1).setCellValue(s.Two());
nextrow.createCell(2).setCellValue(s.Three());
nextrow.createCell(3).setCellValue(s.four());
nextrow.createCell(4).setCellValue(s.five());
rowNumber++;
}
}
sheet1.autoSizeColumn(0);
sheet1.autoSizeColumn(1);
sheet1.autoSizeColumn(2);
sheet1.autoSizeColumn(3);
sheet1.autoSizeColumn(4);
System.out.println("sheet1 writting");
wb.write(fileOut);
fileOut.flush();
fileOut.close();
when i pass sheet2 and remaining code is same as above.
sheet1 tab data is not displayed while sheet2 data is desplayed.
I think what you are doing is you are changing the values of sheet1 to sheet2 after writing to sheet1. Now, what happens according to your code is you are again creating/writing to a file. So, it replaces the old file and data and writes to a new file in second sheet.
Below line overwrites the data when you run the program second time
FileOutputStream fileOut = new FileOutputStream("C:\\Report.xls");
What you should do is when writing to sheet2 you should check if file exists or not. If exists then it adds new sheet to existing excel file. If not exists create a new file and then create a sheet.
Do something like this
FileOutputStream fileOut = new FileOutputStream(file);
if (file.exists()) {
try {
workbook = (HSSFWorkbook)WorkbookFactory.create(file);
} catch (InvalidFormatException e) {
e.printStackTrace();
}
HSSFSheet sheet = workbook.createSheet("Sample sheet2");
}
else{
workbook = new HSSFWorkbook();
HSSFSheet sheet = workbook.createSheet("Sample sheet1");
}
workbook.write(fileOut);
fileOut.close();
To avoid overwriting to a existing file use below. This will append the data to the existing file.
FileOutputStream fileOut = new FileOutputStream("C:\\Report.xls", true);
problem was I created two instances[new createExcel(one); and new createExcel(two); while invoking the function. since wb is part of instance. so it created new excel with sheet1 and sheet2 inside. and since this time I write sheet2 data only. so sheet2 data was only displaying. Thanks for the support.
I am reading an already existing excel file and trying to add certain cells for example(C4-C15). I am having difficult manipulating the files through java. I am using apache poi, and would appreciate any help or direction.
In order to access a cell in Apache POI, you have to get a row first, and then get cell within chosen row. Below is example:
//Input file
InputStream inp = new FileInputStream("workbook.xls");
//Create workbook instance
Workbook wb = WorkbookFactory.create(inp);
//Create sheet instance
Sheet sheet = wb.getSheetAt(0);
for(int i = 3; i <= 16; ++i){ //Rows from 4 to 15 (Apache POI is zero based)
Row row = sheet.getRow(i);
Cell cell = row.getCell(2); //Column "C"
//Do something with cell
}
// Write the output to a file
FileOutputStream fileOut = new FileOutputStream("workbook.xls");
wb.write(fileOut);
fileOut.close();
Source (more examples here)
I have a situation where I will be reading multiple lines and after some logic I need to write the lines in an Excel Sheet. I am using Apache POI for this purpose. However, the problem that I am facing is that, only the last line (from the loop) is being written to the Excel
Can someone please help me on this or provide some code snippet?
Thanks
Workbook wb = new XSSFWorkbook(); //or new HSSFWorkbook();
Sheet sheet = wb.createSheet();
Row row = sheet.createRow(2);
Cell cell = row.createCell(2);
cell.setCellValue("Use \n with word wrap on to create a new line");
//to enable newlines you need set a cell styles with wrap=true
CellStyle cs = wb.createCellStyle();
cs.setWrapText(true);
cell.setCellStyle(cs);
//increase row height to accomodate two lines of text
row.setHeightInPoints((2*sheet.getDefaultRowHeightInPoints()));
//adjust column width to fit the content
sheet.autoSizeColumn((short)2);
FileOutputStream fileOut = new FileOutputStream("ooxml-newlines.xlsx");
wb.write(fileOut);
fileOut.close();
Using newlines in cells