How to resolve the java.lang.VerifyError: org/apache/poi/xssf/usermodel/XSSFWorkbook?

Question

I'm trying to read the xlsx file from asset folder. I received below exception,

05-16 10:12:05.613: E/AndroidRuntime(2915): FATAL EXCEPTION: main 05-16 10:12:05.613: E/AndroidRuntime(2915): java.lang.VerifyError: org/apache/poi/xssf/usermodel/XSSFWorkbook

before this exception, I received some warnings also like,

• Could not find method org.openxmlformats.schemas.spreadsheetml.x2006.main.WorkbookDocument$Factory.parse, referenced from method org.apache.poi.xssf.usermodel.XSSFWorkbook.onDocumentRead

• VFY: unable to resolve exception class 3612 (Lorg/apache/xmlbeans/XmlException;)

I have added poi 3.12 library on my application, libraries screenshot as below,

And I have checked poi-3.12 and poi-ooxml-3.12 jar files in Order and Export, screenshot as below,

I used below code,

        InputStream is = context.getAssets().open("sample.xlsx"));
        XSSFWorkbook workbook = new XSSFWorkbook(is);
        XSSFSheet sheet = workbook.getSheetAt(0);
        Cell cell = sheet.getRow(0).getCell(0);
        String value = cell.getStringCellValue() + "";

I want to read and write the .XLSX and .XLS files. How to resolve this issue?

Thanks in Advance.

Answer 1

Firs you should connect to your project these jars.

Then use this code for reading

public static void readXLSXFile() throws IOException
    {
        InputStream ExcelFileToRead = new FileInputStream("C:/Test.xlsx");
        XSSFWorkbook  wb = new XSSFWorkbook(ExcelFileToRead);

        XSSFWorkbook test = new XSSFWorkbook(); 

        XSSFSheet sheet = wb.getSheetAt(0);
        XSSFRow row; 
        XSSFCell cell;

        Iterator rows = sheet.rowIterator();

        while (rows.hasNext())
        {
            row=(XSSFRow) rows.next();
            Iterator cells = row.cellIterator();
            while (cells.hasNext())
            {
                cell=(XSSFCell) cells.next();

                if (cell.getCellType() == XSSFCell.CELL_TYPE_STRING)
                {
                    System.out.print(cell.getStringCellValue()+" ");
                }
                else if(cell.getCellType() == XSSFCell.CELL_TYPE_NUMERIC)
                {
                    System.out.print(cell.getNumericCellValue()+" ");
                }
                else
                {
                    //U Can Handel Boolean, Formula, Errors
                }
            }
            System.out.println();
        }

    }

Answer 2

Updated your code to able to read and write the .XLSX and .XLS files

InputStream is = context.getAssets().open("sample.xlsx"));
Workbook workbook = WorkbookFactory.create(is);
Sheet sheet = workbook.getSheetAt(0);
Cell cell = sheet.getRow(0).getCell(0);
String value = cell.getStringCellValue() + "";

For your libraries, please have a look here android getting java lang verify error when using external java lib