How to get value from a specific cell of an xlsx file using java apache poi

Question

I am writing a java program to read an excel sheet (xlsx) using apache poi. I am able to iterate through all the cells and get all the values. But I am unable to get a spec

Answer 1

For example, to get E10 of the first worksheet:

wb.getSheetAt(0).getRow(9).getCell(4); 

Note: subtract one because the indices are null-based.

You can also use this convenience method to map E to 4.

wb.getSheetAt(0).getRow(9).getCell(CellReference.convertColStringToIndex("E"));

Answer 2

public class XmlFileRead {

public static void main(String[] args) throws IOException {
    FileInputStream fi = new FileInputStream("abc.xls");
    ArrayList<EmployeeVo> al = new ArrayList<>();
    EmployeeVo evo = null;
    Scanner scanner = null;

    Workbook wb = new XSSFWorkbook(fi);
    Sheet sh = wb.getSheet("Sheet0");
    int starRow = sh.getFirstRowNum();
    int endRow = sh.getLastRowNum();

    for (int i = starRow + 1; i < endRow; i++) {
        scanner = new Scanner(System.in);
        evo = new EmployeeVo();
        Cell c = wb.getSheetAt(0).getRow(i).getCell(1);
        evo.setEmployeeId((int) c.getNumericCellValue());

        Cell c2 = wb.getSheetAt(0).getRow(i).getCell(2);
        evo.setEmployeeName(c2.toString());
        // add to collection
        al.add(evo);
    } // for

    al.forEach(i -> {
        System.out.println(i.getEmployeeId() + " " + i.getEmployeeName());
    });

}
}

Answer 3

To get a value from a specific cell in excel you can use the below code line.

wb.getSheetAt(0).getRow(1).getCell(1);

Answer 4

Just version-up the getCell method

public XSSFCell getCell(String cellName){
    Pattern r = Pattern.compile("^([A-Z]+)([0-9]+)$");
    Matcher m = r.matcher(cellName);
    XSSFWorkbook wb = new XSSFWorkbook();
    if(m.matches()) {
        String columnName = m.group(1);
        int rowNumber = Integer.parseInt(m.group(2));
        if(rowNumber > 0) {
            return wb.getSheetAt(0).getRow(rowNumber-1).getCell(CellReference.convertColStringToIndex(columnName));
        }
    }
    return null;
}

Now you can get the cell easily by this line

getCell("E10")

Answer 5

XSSFSheet has the method getRow(int rownum) It returns the logical row ( 0-based). If you ask for a row that is not defined you get a null. This is to say row 4 represents the fifth row on a sheet.

Once you get the row, you can call getCell(int cellnum) method of XSSFRow object. It returns the cell at the given (0 based) index.