无法在sqlite数据库

Question

这是我面临的困境，我正在使用JXl从电子表格导入数据并插入到sqlite表中，按照我的方式，用户将选择电子表格文件并指定要从中导入的表格，然后指定要从中开始的行和要结束的行，我已经尝试了所有我知道哪个不太顺便（新手程序员），程序有时会插入大部分在200个范围内的所有行并且有时只会在崩溃前将不超过27行插入数据库：

  

＆＃34; SEVERE：null java.sql.SQLException：无法打开数据库文件＆＃34;

我想知道为什么有些人会工作，有时候不这样做。下面是我在提取和插入数据库时​​使用的方法。我将非常感谢你的帮助。提前谢谢。

/**
     *
     * @param filename: the file to read from
     * @param sheetn: the sheet to read from
     */
    public void readXLS(String filename, String sheetn) {

        try {
            Workbook wb = null;

            wb = Workbook.getWorkbook(new File(filename));

            Sheet sheet = wb.getSheet(sheetn);
            JOptionPane.showMessageDialog(null, "Extracting!");

            //define sql statement for extracting form the xls and insert into the DB
            String sqlInsertString = "insert into DEDUCTION(STAFFNUM,M_SAV,COM_PP1,COM_PP2,COM_PP3,COM_PP4,COM_PP5,CPP,DEDUCT,CHARGES,E_LOAN,O_LOAN,A_DEDUC,SHARES,DEPOSIT,COUNTER,PP,DEDUCTION,DED_DATE,ORGANISATION) VALUES(?,?,?,?,?,?,?,?,?,?,?,?,?,?,?,?,?,?,?,?)";

            try {
                System.out.println("test");

                int startRow = Integer.parseInt(txtStartrow.getText());
                int i = startRow - 1;//for traversal                
                int endRow = Integer.parseInt(txtEndrow.getText());
                int x = endRow - 1;
                String date = txtDate.getText().toUpperCase();
                String org = comboOrg.getSelectedItem().toString();

                pst = conn.prepareStatement(sqlInsertString);

                for (int row = i; row <= x; row++) {

                    //get values from the sheet in the workbook for the deduction
                    Cell staffNumber = sheet.getCell(1, row);//staff number
                    pst.setString(1, staffNumber.getContents());
                    Cell month = sheet.getCell(2, row);//monthly savings
                    pst.setString(2, month.getContents());

                    Cell comp1 = sheet.getCell(3, row);//commodity 1
                    pst.setString(3, comp1.getContents());

                    Cell compp2 = sheet.getCell(4, row);//commodity 2
                    pst.setString(4, compp2.getContents());

                    Cell compp3 = sheet.getCell(5, row);//commodity 3
                    pst.setString(5, compp3.getContents());

                    Cell compp4 = sheet.getCell(6, row);//commdity 4
                    pst.setString(6, compp4.getContents());

                    Cell com5 = sheet.getCell(7, row);//commodity 5
                    pst.setString(7, com5.getContents());

                    Cell cppp = sheet.getCell(8, row);//cpp
                    pst.setString(8, cppp.getContents());

                    Cell ded = sheet.getCell(9, row);//deductions colum
                    pst.setString(9, ded.getContents());

                    Cell chg = sheet.getCell(10, row);//charges colum
                    pst.setString(10, chg.getContents());

                    Cell el = sheet.getCell(11, row);//emergency column
                    pst.setString(11, el.getContents());

                    Cell ol = sheet.getCell(12, row);// other loan row
                    pst.setString(12, ol.getContents());

                    Cell ad = sheet.getCell(13, row);// adeduct column                    
                    pst.setString(13, ad.getContents());

                    Cell sh = sheet.getCell(14, row);//shares colomn
                    pst.setString(14, sh.getContents());

                    Cell dep = sheet.getCell(15, row);//deposit column
                    pst.setString(15, dep.getContents());

                    Cell gp = sheet.getCell(16, row);//gp column                   
                    pst.setString(16, gp.getContents());

                    Cell payp = sheet.getCell(17, row);// payment period of loan if any
                    pst.setString(17, payp.getContents());

                    Cell dedu = sheet.getCell(18, row);// deducted amount
                    pst.setString(16, dedu.getContents());

                    //now fix the values into the deduction table in the database
                    pst.setString(19, date);
                    pst.setString(20, org);

                    pst.executeUpdate();
                }

                pst.close();
                conn.close();

                JOptionPane.showMessageDialog(null, "Accounts updated!");
            } catch (SQLException ex) {
                Logger.getLogger(Deductions.class.getName()).log(Level.SEVERE, null, ex);
            }
    } catch (IOException ex) {
        Logger.getLogger(MainMenu.class.getName()).log(Level.SEVERE, null, ex);
    } catch (BiffException ex) {
        Logger.getLogger(MainMenu.class.getName()).log(Level.SEVERE, null, ex);
    }

}