用JSP下载word文件（不会直接用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[] 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;
%>

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