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response.setContentType(fileminitype);
response.setHeader("Location",filename);
response.setHeader("Cache-Control", "max-age=" + cacheTime);
//filenameÓ¦¸ÃÊDZàÂëºóµÄ(utf-8)
response.setHeader("Content-Disposition", "attachment; filename=" + filename);

response.setContentLength(filelength);
OutputStream outputStream = response.getOutputStream();
InputStream inputStream = new FileInputStream(filepath);
byte[] buffer = new byte[1024];
int i = -1;
while ((i = inputStream.read(buffer)) != -1) {
outputStream.write(buffer, 0, i);
}
outputStream.flush();
outputStream.close();
inputStream.close();
outputStream = null;
%>
 
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throws ServletException, IOException {
res.setContentType(" text/plain ");
OutputStream outputStream = null;
try {
outputStream = res.getOutputStream();
//°ÑÎļþ·¾¶ÎªsrcFileµÄÎļþдÈëoutputStreamÖÐ
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} catch (IOException e) {
e.printStackTrace();
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}
 
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con = url.openConnection();
con.setUseCaches(false);
con.setDoInput(true);
con.setDoOutput(true);
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