Java下載檔案（流的形式）

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 1     @RequestMapping("download") 2     @ResponseBody 3     public void download(HttpServletResponse response, Integer userId, String fileUrl) {  4         try { 5             File file=new File(fileUrl); 6             String filename=file.getName(); 7             // 以流的形式下載檔案。 8             InputStream fis = new BufferedInputStream(new FileInputStream(fileUrl)); 9             byte[] buffer = new byte[fis.available()];10             fis.read(buffer);11             fis.close();12             // 清空response13             response.reset();14             15             response.setContentType("application/octet-stream;charset=UTF-8");16             String fileName = new String(filename.getBytes("gb2312"), "iso8859-1");17             response.setHeader("Content-disposition", "attachment;filename=" + fileName);18             OutputStream ouputStream = response.getOutputStream();19             ouputStream.write(buffer);20             ouputStream.flush();21             ouputStream.close(); 22         } catch (Exception e) {23             e.printStackTrace();24             logger.error("檔案下載出現異常", e); 25         } 26     }    

 

Java下載檔案（流的形式）