public static void updatePrice() throws SQLException, ClassNotFoundException, IOException {

        Class.forName("com.mysql.jdbc.Driver");
        Connection con = (Connection) DriverManager.getConnection("jdbc:mysql://localhost/testdb", "erizo", "4123");
        con.setAutoCommit(false);
        PreparedStatement pstm = null;
        FileInputStream file = new FileInputStream("D:\\price_0002.xls");
        POIFSFileSystem fs = new POIFSFileSystem(file);
        HSSFWorkbook wb = new HSSFWorkbook(fs);
        HSSFSheet sheet = wb.getSheetAt(0);
        Row row;
        for (int i = 1; i <= sheet.getLastRowNum(); i++) {
            row = sheet.getRow(i);
            String name = row.getCell(0).getStringCellValue();
            int amount = (int) row.getCell(1).getNumericCellValue();
            double price = row.getCell(2).getNumericCellValue();
            String query = "SELECT id FROM transit where name=?";
            java.sql.PreparedStatement stmt = con.prepareStatement(query);
            stmt.setString(1, name);
            ResultSet r = stmt.executeQuery();
            if (r.next()) {
                System.out.println("Такой товар уже существует");
            } else {
                System.out.println("Добавлен новый товар");
                String sq = "INSERT INTO transit"
                        + "(name, amount, price) VALUES"
                        + "(?,?,?)";
                java.sql.PreparedStatement prepareStatement = con.prepareStatement(sq);
                prepareStatement.setString(1, name);
                prepareStatement.setInt(2, amount);
                prepareStatement.setDouble(3, price);
                prepareStatement.executeUpdate();
            }

        }