/** * 方法：文件下载 * @param file * @param response */ public void download(File file, HttpServletResponse response){ // 如果文件存在，则进行下载 if (file.exists()) { String fileName = file.getName(); // 配置文件下载 response.setHeader(“content-type”, “application/octet-stream”); response.setContentType(“application/octet-stream”);
// 下载文件能正常显示中文 // 实现文件下载 byte[] buffer = new byte[1024]; FileInputStream fis = null; BufferedInputStream bis = null; try { response.setHeader("Content-Disposition", "attachment;filename=" + URLEncoder.encode(fileName, "UTF-8")); fis = new FileInputStream(file); bis = new BufferedInputStream(fis); OutputStream os = response.getOutputStream(); int i = bis.read(buffer); while (i != -1) { os.write(buffer, 0, i); i = bis.read(buffer); } System.out.println("Download successfully!"); } catch (Exception e) { System.out.println("Download failed!"); } finally { if (bis != null) { try { bis.close(); } catch (IOException e) { e.printStackTrace(); } } if (fis != null) { try { fis.close(); } catch (IOException e) { e.printStackTrace(); } } } } }