downloading a large file

Below code to download file in jsp application.

What change would give the positive results for downloading a large file.

In below code what would be the value of

[XXXXX]

byte[] buff = new byte[XXXXX];

if I want to download a very large size file about 1000 KB.

response.setContentType(getResponseContent(strFileExtension));

response.setHeader("Content-Disposition","attachment;filename="+strFileNameToDownload);

response.setContentLength(new Long(file.length()).intValue());

bis = new BufferedInputStream(new FileInputStream(file));

bos = new BufferedOutputStream(response.getOutputStream());

byte[] buff = new byte[4 * 1024];

int bytesRead;

while (-1!=(bytesRead=(bis.read(buff,0,buff.length)))) {

bos.write(buff,0,bytesRead);

}

bos.flush();

[862 byte] By [raghuveer_vellankia] at [2007-11-27 11:46:50]