java读取excel的方法

 

 try {            is = new FileInputStream(fileName);            rwb = Workbook.getWorkbook(is); Sheet sheet = rwb.getSheet(sheetName); } catch (FileNotFoundException e) {            throw new RuntimeException(e);        } catch (BiffException e) {            throw new IllegalArgumentException(e);        } catch (IOException e) {            throw new RuntimeException(e);        }