Excel导出的简单实现

简单例子随便记录下，后续完善

private static void exprotExcel() throws IllegalAccessException, InvocationTargetException, NoSuchMethodException {
		//		public static HSSFWorkbook listToExcelByModel(List list, String cols, String modelName){
		//			 if(list == null || list.size() <= 0
		//					 || cols == null || cols.equals("")
		//					 || modelName == null || modelName.equals("")){
		//				 return null;
		//			 }
		//			 String[] col = stringToKenizer( cols, ",");
				    
				    String[] cols = new String[]{"nickname","userType","score"};
					String[] col = new String[]{"姓名","年龄","性别"};
					
					List<User> list = new ArrayList<User>();
					User user = new User();
					user.setNickname("测试");
					user.setUserType((short)1);
					user.setScore(50);
					list.add(user);
					
					 
					 HSSFWorkbook wb = new HSSFWorkbook();
					 Sheet s = wb.createSheet("测试导出表格");
					 Row r = s.createRow(0);
					 for(int i = 0; col != null && i < col.length; i++){
						 r.createCell(i).setCellValue(col[i]);
					 }
					 
					 for(int i = 0; i < list.size(); i++){
						 Object temp = list.get(i);
						 if(temp != null){
							 Row rr = s.createRow(i + 1);
							 for(int j = 0; cols != null && j < cols.length; j++){
								 rr.createCell(j).setCellValue(BeanUtils.getProperty(temp, cols[j]));
							 }
						 }
					 }
					 
					 try {
						FileOutputStream tt = new FileOutputStream(new File("/Users/yjpx/myspace/testFile/testExcel.xls"));
						wb.write(tt);
						tt.close();
						
						
						
		//				if(Util.checkNull(user.getDeptCode())){
		//					list = service.list(searchInfo,user.getDeptCode(), null);
		//					String showCols = request.getParameter("showCols");
		//					String modelName = request.getParameter("modelName");
		//					HSSFWorkbook wb = Util.listToExcelByModel(list, showCols, modelName);
		//					if(wb != null){
		//						String fileName="Àϸɲ¿ÐÅϢά»¤£¨¹²"+list.size()+"Ìõ£©";
		//				        response.setContentType("application/msexcel");
		//				        response.setHeader("Pragma", "no-cache");
		//				        response.setHeader("Cache-Control", "no-cache");
		//				        response.setHeader("Content-Disposition:", "attachment;filename=" + new String((fileName+".xls").getBytes("gb2312"), "iso8859-1"));
		//				        response.setHeader("Pragma", "");
		//				        response.setHeader("Cache-Control", "");
		//				        OutputStream servletOut = response.getOutputStream();
		//				        try{
		//				        	// servletOut.write(baos.toByteArray());
		//				        	wb.write(servletOut);
		//				        }catch(Exception e){
		//				            servletOut = null;
		//				            servletOut.close();
		//				            e.printStackTrace();
		//				        }
		//			        }else{ 
		//			    		renderText(response,"0");
		//			        }
		//				}
						
						
					} catch (Exception e) {
						// TODO Auto-generated catch block
						e.printStackTrace();
					}
		//			return wb;
	}