Java--Excel操作

 public static List<Info> readXml(String fileName, Map<String, Fuck> pcMap) throws Exception{
         boolean isE2007 = false;    //判断是否是excel2007格式
         if(fileName.endsWith("xlsx"))
             isE2007 = true;
         try {
             InputStream input = new FileInputStream(fileName);  //建立输入流
             Workbook wb  = null;
             //根据文件格式(2003或者2007)来初始化
             if(isE2007) {
                 wb = new XSSFWorkbook(input);
             } else {
                 wb = new HSSFWorkbook(input);
             }
             Sheet sheet = wb.getSheetAt(0);     //获得第一个表单
             Iterator<Row> rows = sheet.rowIterator(); //获得第一个表单的迭代器  

             //初始化列标
             Map<String, Integer> map = new HashMap<String, Integer>();
             if(rows.hasNext()) {
                 Row row = rows.next();
                 Iterator<Cell> cells = row.cellIterator();
                 int i = 0;
                 while(cells.hasNext()) {
                     Cell cell = cells.next();
                     if(map.containsKey(cell.toString())) {
                         continue ;
                     }
                     map.put(cell.toString(), i++);
                 }
             }
 //            for(Map.Entry<String, Integer> set : map.entrySet()) {
 //                System.out.println(set.getKey() + " " + set.getValue());
 //            }

             //取数据
             List<Info> dataList = new ArrayList<Info>();
             while (rows.hasNext()) {
                 Row row = rows.next();  //获得行数据
 //                System.out.println("Row #" + row.getRowNum());  //获得行号从0开始
                 Iterator<Cell> cells = row.cellIterator();    //获得第一行的迭代器  

                 String msg = "";
                 if(cells.hasNext()) {
                     Cell cell = cells.next();
                     cell.setCellType(Cell.CELL_TYPE_STRING);
                     Info info = new Info();

                     Cell org_noCell = row.getCell(map.get("美国编号"));
                     org_noCell.setCellType(Cell.CELL_TYPE_STRING);
                     info.setOrg_no(org_noCell.toString());

                     Cell org_nameCell = row.getCell(map.get("餐厅名字"));
                     org_nameCell.setCellType(Cell.CELL_TYPE_STRING);
                     info.setOrg_name(org_nameCell.toString());

                     Cell szcsCell = row.getCell(map.get("城市"));
                     szcsCell.setCellType(Cell.CELL_TYPE_STRING);
                     info.setSzcs(szcsCell.toString());

                     Cell addrCell = row.getCell(map.get("地址"));
                     addrCell.setCellType(Cell.CELL_TYPE_STRING);
                     info.setAddr(addrCell.toString());

                     Cell telCell = row.getCell(map.get("电话"));
                     telCell.setCellType(Cell.CELL_TYPE_STRING);
                     info.setTel(telCell.toString());

                     Cell taxcodeCell = row.getCell(map.get("对应纳税号"));
                     taxcodeCell.setCellType(Cell.CELL_TYPE_STRING);
                     info.setTaxcode(taxcodeCell.toString());

                     msg = org_noCell.toString() + org_nameCell + szcsCell + addrCell + telCell + taxcodeCell;
                     if("".equals(msg.trim())) {
                         continue ;
                     }
                     if(info != null) {
                         if(pcMap.containsKey(taxcodeCell.toString())) {
                             Fuck fuck = pcMap.get(taxcodeCell.toString());
                             info.setPayee(info.getOrg_no());
                             info.setChecker(fuck.getChecker());
                         }
                         dataList.add(info);
                     }
                 }
             }
             return dataList;
         } catch (IOException ex) {
             ex.printStackTrace();
             throw new Exception("请参考模板并选择正确的文件！");
         }
     }