java web将数据导出为pdf格式文件代码片段

functiongetVerPdf() {

 window.open('/pms/jsp/version/getPrdVerListPdf?page='

   + $("#getPage").html() +'&key='+ $("#select").val());

}

/**

  *

  * Purpose :将产品版本列表导出为pdf格式

  *

  * @param req

  *   请求

  * @param resp

  *   应答

  * @param page

  *   当前页数

  */

 @RequestMapping(value ="getPrdVerListPdf")

 publicvoidgetPrdTypeList(HttpServletRequest req, HttpServletResponse resp, Integer page, String key) {

  resp.setContentType("application/pdf");

  // 弹框选择保存路径和文件名

  // resp.setHeader("content-disposition",

  // "attachment;filename=PrdVerList.pdf");

  // 得到当前页的数据

  ListverList = prdVersionSer.getAllPrdVersion(key);

  if(verList.size() ==0) {

   // 如果没有数据，则返回主界面并显示提示消息

   req.setAttribute("getFileMsg","没有符合条件的信息！");

   req.setAttribute("select", key);

   try{

    req.getRequestDispatcher("/jsp/version/ver_list.jsp").forward(req, resp);

   }catch(Exception e) {

    e.printStackTrace();

   }

  }else{

   // 如果有数据，则显示pdf文件

   JRBeanCollectionDataSource ds =newJRBeanCollectionDataSource(verList);

   String reportPath =null;

   Mapmap =newHashMap();

   if(key !="") {

    map.put("prdName", verList.get(0).getPrdName());

   }else{

    map.put("prdName","");

   }

   reportPath = req.getServletContext().getRealPath("/reports/prdVerListByPrdName.jasper");

   InputStream is =null;

   try{

    is =newFileInputStream(reportPath);

    JasperRunManager.runReportToPdfStream(is, resp.getOutputStream(), map, ds);

   }catch(Exception e) {

    e.printStackTrace();

   }finally{

    if(is !=null) {

     try{

      is.close();

     }catch(IOException e) {

      e.printStackTrace();

     }

    }

   }

  }

 }