解析excel表格的数据放入List中

/**
     * 
     * @param filepath 文件路径
     * @param filename 文件名
     * @param startrow 开始行号 从0开始
     * @param startcol 开始列号 从0开始
     * @param sheetnum sheet
     * @param format double型小数据点保留位数，如: #.##
     * @return
     */
    public static List<Object> readExcel(String filepath, String filename, int startrow, int startcol, int sheetnum, String format) throws Exception {
        List<Object> varList = new ArrayList<Object>();

        try {
            HSSFWorkbook workbook = new HSSFWorkbook(new FileInputStream(new File(filepath, filename)));
            HSSFSheet sheet = workbook.getSheetAt(sheetnum);                     //sheet 从0开始
            int rowNum = sheet.getLastRowNum() + 1;                     //取得最后一行的行号

            for (int i = startrow; i < rowNum; i++) {                    //行循环开始
                PageData varpd = new PageData();
                HSSFRow row = sheet.getRow(i);                             //行
                if(row==null) break; //中间如果有空行，则退出
                int cellNum = row.getLastCellNum();                     //每行的最后一个单元格位置

                for (int j = startcol; j < cellNum; j++) {                //列循环开始
                    HSSFCell cell = row.getCell(Short.parseShort(j + ""));
                    String cellValue = getCellValue(cell, format);
                    varpd.put("var"+j, cellValue);
                }
                varList.add(varpd);
            }
            workbook.close();
        } catch (Exception e) {
            logger.error("解析Excel文件出错", e);
            throw e;
        }
        return varList;
    }

PageData为一个类封装了页面的参数：如下

/** 
 * 说明：参数封装Map
 * 创建人：
 * 修改时间：2014年9月20日
 * @version
 */

    public class PageData extends HashMap<String,Object> implements Map<String,Object>{
        
        private static final long serialVersionUID = 1L;
        
        protected Map<String,Object> map = null;
        private HttpServletRequest request;
        
        public PageData(HttpServletRequest request){
            this.request = request;
            Map<String,String[]> properties = request.getParameterMap();
            Map<String,Object> returnMap = new HashMap<String,Object>(); 
            Iterator<Entry<String,String[]>> entries = properties.entrySet().iterator(); 
            Map.Entry<String,String[]> entry; 
            String name = "";  
            String value = "";  
            while (entries.hasNext()) {
                entry = entries.next(); 
                name = (String) entry.getKey(); 
                Object valueObj = entry.getValue(); 
                if(null == valueObj){ 
                    value = ""; 
                }else if(valueObj instanceof String[]){ 
                    // String[] values = (String[])valueObj;
                    // for(int i=0;i<values.length;i++){ 
                    //     value = values[i] + ",";
                    // }
                    // value = value.substring(0, value.length()-1); 
                    
                    // 多参数列表解析校正  -updated:2017/01/05
                    StringBuilder sb = new StringBuilder();
                    String[] values = (String[])valueObj;
                    for(int i=0;i<values.length;i++){ 
                        sb.append(values[i]).append(",");
                    }
                    value = sb.length() != 0 ? sb.substring(0, sb.length()-1) : "";
                }else{
                    value = valueObj.toString(); 
                }
                returnMap.put(name, value); 
            }
            map = returnMap;
        }
        
        public PageData(Map<String,Object> map){
            this.map = map;
        }
        
        public PageData() {
            map = new HashMap<String,Object>();
        }
        
        @Override
        public Object get(Object key) {
            Object obj = null;
            if(map.get(key) instanceof Object[]) {
                Object[] arr = (Object[])map.get(key);
                obj = request == null ? arr:(request.getParameter((String)key) == null ? arr:arr[0]);
            } else {
                obj = map.get(key);
            }
            return obj;
        }
        
        public String getString(String key) {
            Object obj = get(key);
            String value = null;
            if(null != obj) {
                value = ((String) obj).trim();
            }
            return value;
        }
        
        @Override
        public Object put(String key, Object value) {
            return map.put(key, value);
        }
        
        @Override
        public Object remove(Object key) {
            return map.remove(key);
        }
    
        public void clear() {
            map.clear();
        }
    
        public boolean containsKey(String key) {
            // TODO Auto-generated method stub
            return map.containsKey(key);
        }
    
        public boolean containsValue(Object value) {
            // TODO Auto-generated method stub
            return map.containsValue(value);
        }
    
        public Set<Entry<String, Object>> entrySet() {
            // TODO Auto-generated method stub
            return map.entrySet();
        }
    
        public boolean isEmpty() {
            // TODO Auto-generated method stub
            return map.isEmpty();
        }
    
        public Set<String> keySet() {
            // TODO Auto-generated method stub
            return map.keySet();
        }
    
        public void putAll(Map<? extends String,? extends Object> t) {
            // TODO Auto-generated method stub
            map.putAll(t);
        }
    
        public int size() {
            // TODO Auto-generated method stub
            return map.size();
        }
    
        public Collection<Object> values() {
            // TODO Auto-generated method stub
            return map.values();
        }
        
    }