上傳：

MyjspForm mf = (MyjspForm) form;// TODO Auto-generated method stub

FormFile fname=mf.getFname();

byte [] fn = fname.getFileData();

OutputStream out = new FileOutputStream("D:"+fname.getFileName());

Date date = new Date();

String title = fname.getFileName();

String url = "d:"+fname.getFileName();

Upload ul = new Upload();

ul.setDate(date);

ul.setTitle(title);

ul.setUrl(url);

UploadDAO uld = new UploadDAO();

uld.save(ul);

out.write(fn);

out.close();

下載：

DownloadForm downloadForm = (DownloadForm)form;

String fname = request.getParameter("furl");

FileInputStream fi = new FileInputStream(fname);

byte[] bt = new byte[fi.available()];

fi.read(bt);

//設(shè)置文件是下載還是打開以及打開的方式msdownload表示下載；設(shè)置字湖集，//主要是解決文件中的中文信息?

response.setContentType("application/msdownload;charset=gbk");

//文件下載后的默認(rèn)保存名及打開方式

String contentDisposition = "attachment; filename=" + "java.txt";

response.setHeader("Content-Disposition",contentDisposition);

//設(shè)置下載長(zhǎng)度

response.setContentLength(bt.length);

ServletOutputStream sos = response.getOutputStream();

sos.write(bt);

return null;