<%@ page import="java.io.*" %>
<%@ page import="java.net.URLEncoder" %>
<%
    String filename = request.getParameter("path");
    response.reset();
    response.setContentType("APPLICATION/OCTET-STREAM");

//    response.setContentType("application/download");
//    response.setHeader("Content-Disposition","attachment;filename=\"" + filename + "\"");
    response.setHeader("Content-Disposition","attachment;filename=\"" + URLEncoder.encode(filename, "UTF-8") + "\"");

    File fileToDownload = new File(filename);

    InputStream in = null;
    ServletOutputStream outs = response.getOutputStream();
    try {
        in = new BufferedInputStream(new FileInputStream(fileToDownload));
        int ch;
        while ((ch = in.read()) != -1) {
//            outs.print((char) ch);
            outs.write(ch);
        }
    }
    finally {
        if (in != null) in.close(); // very important
    }

    outs.flush();
    outs.close();
    in.close();
%>