[tip]用jsp實現直接下載文件而不是在浏覽器中打開的功能

<%    // example:    // <a href="/edu/UploadPic/2008-2/2008229133031460.gif">download image</a>
        String root = getServletContext().getRealPath("/");    String path = request.getParameter("path");    String name = request.getParameter("name");
        response.setContentType("unknown");    response.addHeader("Content-Disposition", "filename="" + name + """);
        try    {        java.io.OutputStream    os  = response.getOutputStream();        java.io.FileInputStream fis = new java.io.FileInputStream(root + path + name);
                byte[] b = new byte[1024];        int    i = 0;
                while ( (i = fis.read(b)) > 0 )         {            os.write(b, 0, i);        }
                fis.close();        os.flush();        os.close();    }    catch ( Exception e )    {    }%>