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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 | public class Download extends HttpServlet { public Download() { super (); } public void destroy() { super .destroy(); // Just puts "destroy" string in log // Put your code here } public void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException { this .doPost(request, response); } public void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException { String path = "D:/upload/哈哈哈.txt" ; try { // path是指欲下载的文件的路径。 File file = new File(path); // 取得文件名。 String filename = file.getName(); // 取得文件的后缀名。 String ext = filename.substring(filename.lastIndexOf( "." ) + 1 ).toUpperCase(); // 以流的形式下载文件。 InputStream fis = new BufferedInputStream( new FileInputStream(path)); byte [] buffer = new byte [fis.available()]; fis.read(buffer); fis.close(); // 清空response response.reset(); // 设置response的Header response.addHeader( "Content-Disposition" , "attachment;filename=" + new String(filename.getBytes( "gb2312" ), "ISO8859-1" )); response.addHeader( "Content-Length" , "" + file.length()); OutputStream toClient = new BufferedOutputStream(response.getOutputStream()); response.setContentType( "application/octet-stream" ); toClient.write(buffer); toClient.flush(); toClient.close(); } catch (IOException ex) { ex.printStackTrace(); } } public void init() throws ServletException { // Put your code here } } |