import jxl.*;          jxl.jar 包
FormFile file = excelActionForm.getTheFile();
Workbook book = Workbook.getWorkbook(file.getInputStream());
        Sheet sheet = book.getSheet(0);
        int rows = 0;
        int cols = 0;
        rows = sheet.getRows();
        cols = sheet.getColumns();
        Cell[] cel = null;
        String[] tmp = new String[cols];
        //因为EXCEL的第一行为标题，所以内容从第二行开始取
        for (int r = 1; r < rows; r++) {
          for (int j = 0; j < cols; j++) {
            cel = sheet.getRow(r);
            tmp[j] = cel[j].getContents().trim();
          }