java文件下载如何让用户选择“保存”或“打开”，而不是直接下载

java文件下载如何让用户选择“保存”或“打开”，而不是直接下载 java文件下载，怎么让用户选择“保存”或“打开”，而不是直接下载, 如，用IE测试时，有时直接就用迅雷下载了，不会弹出那个“保存”或“打开”的对话框 下面是servlet代码 public void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException { request.setCharacterEncoding( UTF-8 ); response.setCharacterEncoding( UTF-8 ); response.setContentType( text/html;charset=UTF-8 ); String fileName = request.getParameter( fileName ); fileName = new String(fileName.getBytes( ISO-8859-1 ), UTF-8 ).trim();//文件名 String path = request.getRealPath( / )+ webs/ ; String target = path+ file +File.separator+ workflow +File.separator+fileName;// 文件存储的位置 String fileType = fileName.substring(fileName.lastIndexOf( . )+1, fileName.length()); response.reset(); //清空response response.setHeader( Content-Disposition , attachment;filename= +fileName); OutputStream out = response.getOutputStream(); FileInputStream in = new FileInputStream(target); try { fileName = URLEncoder.encode(fileName, utf-8 ); fileType.toLowerCase(); if( ceb .equals(fileType)){ response.setContentType( application/x-ceb ); }else if( doc .equals(fileType)){ response.setContentType( application/msword ); }else if( xls .equals(fileType)){ response.setContentType( application/vnd.ms-excel ); }else if( gif .equals(fileType)){ response.setContentType( image/gif ); }else if( bmp .equals(fileType)){ response.setContentType( image/bmp ); }else if( jpeg .equals(fileType)){ response.setContentType( image/jpeg ); }else if( txt .equals(fileType)){ response.setContentType( text/plain ); }else if( pdf .equals(fileType)){ response.setContentType( application/pdf ); }else if( jpeg .equals(fileType)){ response.setContentType( image/jpeg ); }else{ response.setContentType( application/octet-stream ); } int n = 0; byte b[] = new byte[1024]; while ((n = in.read(b)) != -1) { out.write(b, 0, n); } out.flush(); }catch(Exception e) { e.printStackTrace(); }finally{ if(in != null) { in.close(); } if(out != null) { out.close(); } } } ------解决-------------------------------------------------------- 我也遇到通过迅雷下载....后来发现是和迅雷设置还是浏览器设置有关。应该是迅雷.你设置 一下迅雷应该就不通过迅雷下载了.你可以试试。具体设置迅雷那个属性我也忘记了 囧 ------解决方案-------------------------------------------------------- 迅雷设置里面有个设为浏览器默认下载工具，取消就ok了 ------解决方案-------------------------------------------------------- 貌似是迅雷监视设置里面监视浏览器勾掉就可以。 ------解决方案-------------------------------------------------------- 工具下载跟代码没关系～