Java 浏览器下载文件

  
             // 输入流，通过输入流读取文件内容
//             InputStream fileInputStream = new FileInputStream(new File(basePath+fileById.getCurrentFileName()));
//             InputStream fis = new BufferedInputStream(fileInputStream);
//             byte[] buffer = new byte[fis.available()];
//             fis.read(buffer);
//             fis.close();
//             response.reset();
//             response.setCharacterEncoding("UTF-8");
//             response.addHeader("Content-Disposition", "attachment;filename=" + 			       URLEncoder.encode(fileById.getCurrentFileName(), "UTF-8"));
//             response.addHeader("Content-Length", "" + fileById.getFileSize());
//             OutputStream outputStream = new BufferedOutputStream(response.getOutputStream());
//             response.setContentType("application/octet-stream");
//             outputStream.write(buffer);
//             outputStream.flush();
//             fileInputStream.close();