Issue while reading Excel document (Java code)

Question

I have some Java code which reads the Excel data. On running the Java code, it\'s showing the following error. Help me resolve the same. Also, I need to know other method of

Answer 1

you are using the wrong class for reading the file HSSFWorkbook is for old excel format. use XSSFWorkbook instead

Edited: copied from http://www.coderanch.com/t/463779/java/java/read-xlsx-sheet-Client-Side. did u do the same thing?

try { 
System.out.println("destDir==> "+destDir); 
XSSFWorkbook workBook = new XSSFWorkbook(destDir); 
XSSFSheet sheet = workBook.getSheetAt(0); 
totalRows = sheet.getPhysicalNumberOfRows(); 
System.out.println("total no of rows >>>>"+totalRows); 

} catch (IOException e) { 
e.printStackTrace(); 
} 

Edit 2: Learn about apache POI from this link

Answer 2

If you want to read a .xls file you must use HSSF (it supports only .xls format) but for .xlsx files you must use XSSF or another higher version API.

Answer 3

After deleting previous imports class then try to add

import org.apache.poi.ss.usermodel.Cell;
import org.apache.poi.ss.usermodel.Row;
import org.apache.poi.ss.usermodel.Sheet;
import org.apache.poi.ss.usermodel.Workbook;
import org.apache.poi.ss.usermodel.WorkbookFactory;


 private static void read(String path){
  Workbook workbook = null;
  FileInputStream fis = null;           
    try {
        File source = new File(path);
        if(source.exists()){
         fis = new FileInputStream(source);
         workbook = WorkbookFactory.create(source);

        }else{
                JOptionPane.showMessageDialog(null, "File path is not exist.", "Error", JOptionPane.ERROR_MESSAGE);
        }       

        Sheet sheet = null;           
        int lastRowNum = 0;
        int numSheets = workbook.getNumberOfSheets();         
        for(int i = 0; i < numSheets; i++) {              
            sheet = workbook.getSheetAt(i);
            if(sheet.getPhysicalNumberOfRows() > 0) {                    
                lastRowNum = sheet.getLastRowNum();                  
                int lastCellNum = 0;               
                for(Row row : sheet) {                  
                    Employee emp = new Employee();         

                    int numOfCell = row.getPhysicalNumberOfCells(); 
                    System.out.println("numOfCell:: "+numOfCell);
                    String stringValues [] = new String[numOfCell];
                    for(Cell cell : row) {
                       // cell = row.getCell(cellIndex);                        
                        int cellIndex = cell.getColumnIndex();                      
                        logger.info("cellIndex:: "+ cellIndex);
                         switch (cell.getCellType()) {

                         case Cell.CELL_TYPE_FORMULA:
                            // printValue = "FORMULA value=" + cell.getCellFormula();
                             stringValues[cellIndex] = cell.getCellFormula();
                             break;

                         case Cell.CELL_TYPE_NUMERIC:
                             //printValue = "NUMERIC value=" + cell.getNumericCellValue();
                             System.out.println("Value is numeric:: "+ cell.getNumericCellValue());
                             stringValues[cellIndex]  = String.valueOf(cell.getNumericCellValue());
                             break;

                         case Cell.CELL_TYPE_STRING:
                            // printValue = "STRING value=" + cell.getStringCellValue();
                             stringValues[cellIndex]  = cell.getStringCellValue();
                             break;

                         case Cell.CELL_TYPE_BLANK:
                            // printValue = "STRING value=" + cell.getStringCellValue();
                             stringValues[cellIndex]  = cell.getStringCellValue();
                             break;   

                         default:
                         } 


                     }           

                    } 


                } 
            }            
        }     

        } catch (InvalidFormatException e) {
            logger.error(e.getMessage());
            e.printStackTrace();
        } catch (FileNotFoundException e) {          
            e.printStackTrace();
            logger.error(e.getMessage());
        } catch (IOException e) {
            logger.error(e.getMessage());
            e.printStackTrace();
        }   
        catch (Exception e) {
            logger.error(e.getMessage());
            e.printStackTrace();
        }   
        finally {
            if (fis != null) {
                try {
                    fis.close();
                    fis = null;
                    } catch (IOException ioEx) {
                        logger.error(ioEx.getMessage());
                } 
            }
        }    
     }