JXLS生成EXCEL并下载

原文地址：http://www.cnblogs.com/yangy608/archive/2010/09/07/1820681.html

 jxl.jar
 jxls-core- 0.9 . 9 .jar
 jxls-reader- 0.9 . 9 .jar
 poi- 3.5 -FINAL.jar(必须 3.5 以上的版本)
 其他jar根据提示可以去 http: //jarvana.com/jarvana/ 查找


 // 生成excel 传入模板文件 要生成的内容 生成文件 返回生成文件的完整路径
 public static String doExcel(String from, Map beans, String to) {
     ServletContext sc = (ServletContext) ActionContext.getContext().get(
             ServletActionContext.SERVLET_CONTEXT);
     String path = sc.getRealPath( "/model" );
     XLSTransformer transformer = new XLSTransformer();
     String sfrom = path + "\\" + from; // 模板文件
     String sto = path + "\\" + to; // 要生成的文件
     try {
         transformer.transformXLS(sfrom, beans, sto);
     } catch (ParsePropertyException e) {
         // TODO Auto-generated catch block
         e.printStackTrace();
     } catch (IOException e) {
         // TODO Auto-generated catch block
         e.printStackTrace();
     }
     return sto;
 }
 // 下载
 public static void doDownLoad(String path, String name,
         HttpServletResponse response) {
     try {
         response.reset();
         response.setHeader( "Content-disposition" ,
                 "attachment;success=true;filename ="
                         + URLEncoder.encode(name, "utf-8" ));
         BufferedInputStream bis = null ;
         BufferedOutputStream bos = null ;
         OutputStream fos = null ;
         InputStream fis = null ;
         File uploadFile = new File(path);
         fis = new FileInputStream(uploadFile);
         bis = new BufferedInputStream(fis);
         fos = response.getOutputStream();
         bos = new BufferedOutputStream(fos);
         // 弹出下载对话框
         int bytesRead = 0 ;
         byte [] buffer = new byte [ 8192 ];
         while ((bytesRead = bis.read(buffer, 0 , 8192 )) != - 1 ) {
             bos.write(buffer, 0 , bytesRead);
         }
         bos.flush();
         fis.close();
         bis.close();
         fos.close();
         bos.close();
     } catch (Exception e) {
         e.printStackTrace();
     }
 }

 调用：
     List resultList= new ArrayList();
         for ( int i = 0 ; i < list.size(); i++) {
             。。。。。。
             InspectionStisfaction vo= new InspectionStisfaction();
             vo.setXjrq(SystemUtil.getTimeStr2Str(String.valueOf(map.get( "apply_date" ))));
             vo.setXjsl(lxjsl);
             vo.setFcmy(lfcmy);
             vo.setMy(lmy);
             vo.setYb(lyb);
             vo.setBmy(lbmy);
             vo.setFcbmy(lfcbmy);
             resultList.add(vo);
         }

         //生成EXcel
         Map beans = new HashMap();
         beans.put( "resultList" ,resultList);
         String path=SystemUtil.doExcel( "巡检商户满意度报表模板.xls" , beans, "巡检商户满意度报表.xls" );
         SystemUtil.doDownLoad(path, "巡检商户满意度报表.xls" , this .response);
         return null ;


模板样式：
         巡检数量(个)   总体满意度 非常满意    满意     一般         不满意    非常不满意  合计
         <jx:forEach items= "${resultList}" var= "l" >
         ${l.xjrq}         ${l.xjsl}     ${l.fcmy}   ${l.my}    ${l.yb}    ${l.bmy}   ${l.fcbmy}   $[B#+C#+D#]
         </jx:forEach>
         当月数量总计(个)  $[SUM(B4)]   $[SUM(D4)]  $[SUM(E4)] $[SUM(F4)] $[SUM(G4)] $[SUM(H4)]   $[SUM(I4)]