How to insert into database reading from excel sheet using java POI ?

public class SimpleExcelReadExample {
	static Connection con1 = null;
	static Connection con3 = null;
	static PreparedStatement preparedstatement = null;
	static ResultSet resultset = null;
	int j = 0;

	public static void main(String[] args) {
		
		String fileName = "D:/Excel/Report.xls";
		Cleartables.table_daily_report();
		Vector dataHolder = read(fileName);
		saveToDatabase(dataHolder);
	}

	public static Vector read(String fileName) {
		Vector cellVectorHolder = new Vector();
		try {
			FileInputStream myInput = new FileInputStream(fileName);
			POIFSFileSystem myFileSystem = new POIFSFileSystem(myInput);
			HSSFWorkbook myWorkBook = new HSSFWorkbook(myFileSystem);
			HSSFSheet mySheet = myWorkBook.getSheetAt(0);
			Iterator rowIter = mySheet.rowIterator();
			while (rowIter.hasNext()) {
				HSSFRow myRow = (HSSFRow) rowIter.next();
				Iterator cellIter = myRow.cellIterator();
				Vector cellStoreVector = new Vector();
				while (cellIter.hasNext()) {
					HSSFCell myCell = (HSSFCell) cellIter.next();
					//System.out.println("read method"+myCell);
					cellStoreVector.addElement(myCell);
				}
				cellVectorHolder.addElement(cellStoreVector);
			}
		} catch (Exception e) {
			e.printStackTrace();
		}
		return cellVectorHolder;
	}

	private static void saveToDatabase(Vector dataHolder)
	{
		
                       for (int i=0;i<dataHolder.size(); i++)
                        {
                           Vector cellStoreVector=(Vector)dataHolder.get(i);
                           issueid = ((HSSFCell)cellStoreVector.get(0)).toString();
                               System.out.println(issueid);
                        }