[java] Cannot get a text value from a numeric cell “Poi”

I'm trying to consume data from a spreadsheet in Excel, but always of this error, already tried formatting the worksheet to text and number and still the error persists.

I saw a person using it resolved cell.setCellType ( Cell.CELL_TYPE_STRING ) ; but I do not know where I fit this passage in my code.

WebElement searchbox = driver.findElement(By.name("j_username"));
WebElement searchbox2 = driver.findElement(By.name("j_password"));         

try {
    FileInputStream file = new FileInputStream(new File("C:\\paulo.xls")); 
    HSSFWorkbook workbook = new HSSFWorkbook(file);
    HSSFSheet sheet = workbook.getSheetAt(0);

    for (int i=1; i <= sheet.getLastRowNum(); i++){
        String j_username = sheet.getRow(i).getCell(0).getStringCellValue();
        String j_password = sheet.getRow(i).getCell(0).getStringCellValue();

        searchbox.sendKeys(j_username);
        searchbox2.sendKeys(j_password);
        searchbox.submit();  

        driver.manage().timeouts().implicitlyWait(10000, TimeUnit.MILLISECONDS);
    }

    workbook.close();
    file.close();
} catch (FileNotFoundException fnfe) {
    fnfe.printStackTrace();
} catch (IOException ioe) {
    ioe.printStackTrace();

This will work:

WebElement searchbox = driver.findElement(By.name("j_username"));
WebElement searchbox2 = driver.findElement(By.name("j_password"));         


try {

      FileInputStream file = new FileInputStream(new File("C:\\paulo.xls")); 
      HSSFWorkbook workbook = new HSSFWorkbook(file);

      HSSFSheet sheet = workbook.getSheetAt(0);

    for (int i=1; i <= sheet.getLastRowNum(); i++){

            HSSFCell j_username = sheet.getRow(i).getCell(0)
            HSSFCell j_password = sheet.getRow(i).getCell(0)

            //Setting the Cell type as String
            j_username.setCellType(j_username.CELL_TYPE_STRING)
            j_password.setCellType(j_password.CELL_TYPE_STRING)

            searchbox.sendKeys(j_username.toString());
            searchbox2.sendKeys(j_password.toString());


            searchbox.submit();       

            driver.manage().timeouts().implicitlyWait(10000, TimeUnit.MILLISECONDS);

    }

      workbook.close();
      file.close();

     } catch (FileNotFoundException fnfe) {
      fnfe.printStackTrace();
     } catch (IOException ioe) {
      ioe.printStackTrace();
     }

public class B3PassingExcelDataBase {


    @Test()
    //Import the data::row start at 3 and column at 1: 
    public static void imortingData () throws IOException {

        FileInputStream  file=new         FileInputStream("/Users/Downloads/Book2.xlsx");
        XSSFWorkbook book=new XSSFWorkbook(file);
        XSSFSheet sheet=book.getSheet("Sheet1");

        int rowNum=sheet.getLastRowNum();
        System.out.println(rowNum);

        //get the row and value and assigned to variable to use in application
        for (int r=3;r<rowNum;r++) {

            // Rows stays same but column num changes and this is for only one person. It iterate for other.
             XSSFRow currentRow=sheet.getRow(r);

             String fName=currentRow.getCell(1).toString();
             String lName=currentRow.getCell(2).toString();
             String phone=currentRow.getCell(3).toString();
             String email=currentRow.getCell(4).toString()

               //passing the data
                yogen.findElement(By.name("firstName")).sendKeys(fName);    ;
                yogen.findElement(By.name("lastName")).sendKeys(lName); ;
                yogen.findElement(By.name("phone")).sendKeys(phone);    ;

        }

        yogen.close();


    }

}

use the code
cell.setCellType(Cell.CELL_TYPE_STRING);
before reading the string value, Which can help you.
I am using POI version 3.17 Beta1 version, sure the version compatibility also..

If you are processing in rows with cellIterator....then this worked for me ....

  DataFormatter formatter = new DataFormatter();   
  while(cellIterator.hasNext())
  {                         
        cell = cellIterator.next();
        String val = "";            
        switch(cell.getCellType()) 
        {
            case Cell.CELL_TYPE_NUMERIC:
                val = String.valueOf(formatter.formatCellValue(cell));
                break;
            case Cell.CELL_TYPE_STRING:
                val = formatter.formatCellValue(cell);
                break;
        }
    .....
    .....
  }

Use that code it definitely works and I modified it.

import java.io.FileInputStream;
import java.io.IOException;
import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.PreparedStatement;
import org.apache.poi.poifs.filesystem.POIFSFileSystem;
//import org.apache.poi.ss.usermodel.Row;
import org.apache.poi.ss.usermodel.*;

public class TestApp {

    public static void main(String[] args) throws Exception {

        try {

            Class forName = Class.forName("com.mysql.jdbc.Driver");
            Connection con = null;
            con = DriverManager.getConnection("jdbc:mysql://localhost/tables", "root", "root");
            con.setAutoCommit(false);
            PreparedStatement pstm = null;
            FileInputStream input = new FileInputStream("C:\\Users\\Desktop\\a1.xls");
            POIFSFileSystem fs = new POIFSFileSystem(input);
            Workbook workbook;
            workbook = WorkbookFactory.create(fs);
            Sheet sheet = workbook.getSheetAt(0);
            Row row;
            for (int i = 1; i <= sheet.getLastRowNum(); i++) {
                row = (Row) sheet.getRow(i);
                String name = row.getCell(0).getStringCellValue();
                String add = row.getCell(1).getStringCellValue();

                int  contact = (int) row.getCell(2).getNumericCellValue();

                String email = row.getCell(3).getStringCellValue();

                String sql = "INSERT INTO employee (name, address, contactNo, email) VALUES('" + name + "','" + add + "'," + contact + ",'" + email + "')";
                pstm = (PreparedStatement) con.prepareStatement(sql);
                pstm.execute();
                System.out.println("Import rows " + i);
            }
            con.commit();
            pstm.close();
            con.close();
            input.close();
            System.out.println("Success import excel to mysql table");
        } catch (IOException e) {
        }
    }

}

As explained in the Apache POI Javadocs, you should not use cell.setCellType(Cell.CELL_TYPE_STRING) to get the string value of a numeric cell, as you'll loose all the formatting

Instead, as the javadocs explain, you should use DataFormatter

What DataFormatter does is take the floating point value representing the cell is stored in the file, along with the formatting rules applied to it, and returns you a string that look like it the cell does in Excel.

So, if you're after a String of the cell, looking much as you had it looking in Excel, just do:

 // Create a formatter, do this once
 DataFormatter formatter = new DataFormatter(Locale.US);

 .....

 for (int i=1; i <= sheet.getLastRowNum(); i++) {
        Row r = sheet.getRow(i);
        if (r == null) { 
           // empty row, skip
        } else {
           String j_username = formatter.formatCellValue(row.getCell(0));
           String j_password =  formatter.formatCellValue(row.getCell(1));

           // Use these
        }
 }

The formatter will return String cells as-is, and for Numeric cells will apply the formatting rules on the style to the number of the cell

This is one of the other method to solve the Error: "Cannot get a text value from a numeric cell “Poi”"

Go to the Excel Sheet. Drag and Select the Numerics which you are importing Data from the Excel sheet. Go to Format > Number > Then Select "Plain Text" Then Export as .xlsx. Now Try to Run the Script

Hope works Fine...!

Cannot get a text value from a numeric cell “Poi”.img

CellType cell = row.getCell(j).getCellTypeEnum();

switch(cell) {
    case NUMERIC:
        intVal = row.getCell(j).getNumericCellValue();
        System.out.print(intVal);
        break;
    case STRING:
        stringVal = row.getCell(j).getStringCellValue();
        System.out.print(stringVal);
        break;
}

Using the DataFormatter this issue is resolved. Thanks to "Gagravarr" for the initial post.

DataFormatter formatter = new DataFormatter();

String empno = formatter.formatCellValue(cell0);

    Cell cell = sheet.getRow(i).getCell(0);
    cell.setCellType ( Cell.CELL_TYPE_STRING );
    String j_username = cell.getStringCellValue();

UPDATE

Ok, as have been said in comments, despite this works it isn't correct method of retrieving data from an Excel's cell.

According to the manual here:

If what you want to do is get a String value for your numeric cell, stop!. This is not the way to do it. Instead, for fetching the string value of a numeric or boolean or date cell, use DataFormatter instead.

And according to the DataFormatter API

DataFormatter contains methods for formatting the value stored in an Cell. This can be useful for reports and GUI presentations when you need to display data exactly as it appears in Excel. Supported formats include currency, SSN, percentages, decimals, dates, phone numbers, zip codes, etc.

So, right way to show numeric cell's value is as following:

 DataFormatter formatter = new DataFormatter(); //creating formatter using the default locale
 Cell cell = sheet.getRow(i).getCell(0);
 String j_username = formatter.formatCellValue(cell); //Returns the formatted value of a cell as a String regardless of the cell type.