How to write data in multiple cells in Excel using java?

Question

I wrote a code for writing data in an Excel sheet.In this i have to write the data in multiple cells.But it is showing some Errors.For one cell it is able to change the data.I kept for loop for changing the data in multiple cells.For this it is showing Error. Can any one tell me that where i did mistake.

import java.io.*;
import java.text.SimpleDateFormat;
import java.util.Calendar;
import java.util.Iterator;
import java.util.List;
import java.util.Vector;
import java.lang.String;

import javax.swing.JOptionPane;

import jxl.Cell;

import org.apache.poi.hssf.util.CellReference;
import org.apache.poi.ss.formula.functions.Column;
import org.apache.poi.ss.usermodel.Row;
import org.apache.poi.xssf.usermodel.XSSFCell;
import org.apache.poi.xssf.usermodel.XSSFComment;
import org.apache.poi.xssf.usermodel.XSSFRow;
import org.apache.poi.xssf.usermodel.XSSFSheet;
import org.apache.poi.xssf.usermodel.XSSFWorkbook;


public class Sele1
{

    public static void main(String[] args)
    {
        // TODO Auto-generated method stub
        String FileName = "C:\\Users\\u304081\\Desktop\\Java\\new.xlsx";

        try 
        {
            FileInputStream fileInputStream3 = new FileInputStream(FileName);
            File outputsheetfile1 = new File(FileName);
            if(outputsheetfile1.exists()) 
            {
                System.out.println("File existed");
                try
                {
                    XSSFWorkbook ObjWorkBook = new XSSFWorkbook(fileInputStream3);
                    XSSFSheet DriverTableSheet = ObjWorkBook.getSheetAt(0);
                    for(int i=1;i<3;i++)
                    {
                    XSSFRow row1 = DriverTableSheet.getRow(i);
                    XSSFCell Cell1 = row1.getCell(0);

                    System.out.println("Cell1"+ Cell1);
                    //System.out.println("Cell2"+ Cell2);
                     String str = "Abc";
                     Cell1.setCellValue(str);

                     FileOutputStream out1 = new FileOutputStream (FileName,false);
                     ObjWorkBook.write(out1);
                     fileInputStream3.close();
                    }

                } 
            catch (IOException e) 
            {
                // TODO Auto-generated catch block
                e.printStackTrace();
            }

            }
        } catch (FileNotFoundException e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
        }
        }
    }

Error I am getting is:

ObjWorkBook.write(out1);

`"poi-bin-3.9-20121203\poi-3.9\poi-ooxml-3.9-20121203.jar has no source attachment"`

Answer 1

        HSSFWorkbook workbook = new HSSFWorkbook();
        HSSFSheet sheet = workbook.createSheet("Course Pack Resolution Details");
        outputFileName = outPut.getAbsolutePath(); 
        int rownum = 0;`enter code here`
        for (int i = 0; i < dataList.size(); i++) {
            Object[] objArr = dataList.get(i);
            HSSFRow row = sheet.createRow(rownum++);

            int cellnum = 0;
            for (Object obj : objArr) {
                Cell cell = row.createCell(cellnum++);
                sheet.autoSizeColumn((short) cellnum);
                if (obj instanceof Date) {
                    cell.setCellValue((Date) obj);
                } else if (obj instanceof Boolean) {
                    cell.setCellValue((Boolean) obj);
                } else if (obj instanceof String) {
                    cell.setCellValue((String) obj);
                } else if (obj instanceof Double) {
                    cell.setCellValue((Double) obj);
                }
            }
        }
        if (outPut.exists()) {
            outPut.delete();
        }
        FileOutputStream out =
                new FileOutputStream(outPut);
        workbook.write(out);

DataList is ArrayList of Array Object so you can enter as much data as you want init.

Example of DataList:

dataList.add(new Object[]{"Sr No.", "Cols1", "cols2", "cols3"......."colsn"});

respective data you can insert in list. this example is for .xls format if you want .xlsx then use xssfworkbook.

May be help you.

Answer 2

The error you mentioned:

ObjWorkBook.write(out1); Here it is showing Error as "poi-bin-3.9-20121203\poi-3.9\poi-ooxml-3.9-20121203.jar has no source attachment"

Does not seem to be anyways related to the problem you mentioned about writing data in multiple cells to excel.

You may want to look at this:

How can I link source to a jar package in eclipse?

Answer 3

=======write data in excel-file in play framework===============

HSSFWorkbook workbook = new HSSFWorkbook();
HSSFSheet sheet = workbook.createSheet("Sample sheet");

Map<String, Object[]> data = new HashMap<String, Object[]>();
data.put("1", new Object[] {"empNo.", "name", "salary"});
data.put("2", new Object[] {1, "John", 1500000d});
data.put("3", new Object[] {2, "Sam", 800000d});
data.put("4", new Object[] {3, "Dean", 700000d});

Set<String> keyset = data.keySet();
int rownum = 0;
for (String key : keyset) {
    Row row = sheet.createRow(rownum++);
    Object [] objArr = data.get(key);
    int cellnum = 0;
    for (Object obj : objArr) {
        Cell cell = row.createCell(cellnum++);
        if(obj instanceof Integer) 
            cell.setCellValue((Integer)obj);
        else if(obj instanceof String)
            cell.setCellValue((String)obj);
        else if(obj instanceof Double)
            cell.setCellValue((Double)obj);
    }
}

try {
    //new excel file created by fileoutput stream object 
    FileOutputStream out = 
            new FileOutputStream(new File("/home/jagasan/workspace-playexcelApp/public/ExcelFile3.xlsx"));
    workbook.write(out);
    out.close();
    System.out.println("Excel written successfully..");

} catch (FileNotFoundException e) {
    e.printStackTrace();
} catch (IOException e) {
    e.printStackTrace();
}
return ok("file reading is completed");

=======read data from excel and store in database in playframework=======

public class Application extends Controller {

    /*
     * public Result index() { return
     * ok(index.render("Your new application is ready.")); }
     */
    public Result readExcel() throws FileNotFoundException {
        try{
           InputStream ExcelFileToRead = new FileInputStream("/home/jagasan/workspace-play/excelApp/public/ExcelFile3.xlsx");

            HSSFWorkbook wb = new HSSFWorkbook(ExcelFileToRead); 
            HSSFSheet sheet=wb.getSheetAt(0);
            HSSFRow row;
            HSSFCell cell;        
            Iterator rows = sheet.rowIterator();
            boolean flag=false;
            while (rows.hasNext())
            {
                row=(HSSFRow) rows.next();
                if(flag==false)
                {
                    flag=true;
                    continue;
                }
                Iterator cells = row.cellIterator();
                ExcelFile excelfile=new ExcelFile();
                int i=0;
                while (cells.hasNext())
                {
                    cell=(HSSFCell) cells.next();
                    if(i==0)
                        excelfile.setEmpNo((int)cell.getNumericCellValue());
                    if(i==1)
                        excelfile.setName(cell.getStringCellValue());
                    if(i==2)
                        excelfile.setSalary(cell.getNumericCellValue());
                   i++;

                }
                excelfile.save();

            }
        }
        catch(Exception e)
        {
            e.printStackTrace();
            System.out.println("error");
        }
        return ok("successful");
    }

======in build.sbt=======

use the dependency jar file means apache API

libraryDependencies ++= Seq(
  javaJdbc,
  cache,
  javaWs,
  "org.apache.poi" % "poi" % "3.8", "org.apache.poi" % "poi-ooxml" % "3.9"
)