用JSP编程实现word文件下载(点击下载-非ie打开)

<%@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; 
        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; 
%>