java 读写excel

public class OperatExcel
{
    private  File file = new File(ParamenterInit.SRCEXCELPATH);
    private  File outfile = new File(ParamenterInit.DESTEXCELPATH);
    private static String sheetName = ParamenterInit.SHEETNAME;
    private static int column =Integer.parseInt(ParamenterInit.SHELLCOLUMN);
    private static int sqlcolumn =Integer.parseInt(ParamenterInit.SQLCOLUMN);
    public static void main(String args[] ) throws  IOException, RowsExceededException, BiffException, WriteException{
        OperatExcel op = new OperatExcel();
        op.writeExcel();
    }
   
  
    public   List readExcel() throws  IOException{
        InputStream in = new FileInputStream(file);
        List list = new ArrayList();
        try{
        Workbook book = Workbook.getWorkbook(in);
       Sheet sheet =  book.getSheet(sheetName);
       Cell cell [] =  sheet.getColumn(column);
      
        for(Cell c : cell){
            list.add(c.getContents().trim().startsWith("/")?c.getContents().substring(1).trim():c.getContents().trim());
        }
       
        in.close();
        //in.close();
        }catch(Exception ex){
            ex.printStackTrace();
&nbs