<%@page import="java.util.*"%> <%@page import="java.io.*"%> <%@page import="java.net.*"%> <%     String filename = "";     if (request.getParameter("file") != null) {         filename =     request.getParameter("file");     }     response.setContentType("application/msword");     response.setHeader("Content-disposition","attachment; filename="+filename);     BufferedInputStream bis = null;     BufferedOutputStream bos = null;     try {         bis = new BufferedInputStream(new FileInputStream(getServletContext().getRealPath("" + filename)));         bos = new BufferedOutputStream(response.getOutputStream());         byte[] buff = new byte[2048];         int bytesRead;         while(-1 != (bytesRead = bis.read(buff, 0, buff.length))) {             bos.write(buff,0,bytesRead);         }     } catch(final IOException e) {         System.out.println ( "出现IOException." + e );     } finally {         if (bis != null)             bis.close();         if (bos != null)             bos.close();     }     return; %>