Re: Downloading a file in Linux

From:
 Grzesiek <grzesiek.wilanowski@gmail.com>
Newsgroups:
comp.lang.java.programmer
Date:
Sun, 19 Aug 2007 14:55:29 -0700
Message-ID:
<1187560529.697620.256130@k79g2000hse.googlegroups.com>
On 19 Sie, 23:14, Arne Vajh=F8j <a...@vajhoej.dk> wrote:

Grzesiek wrote:

I read one byte at a time because i download a JAR FILE not an image.
No corrupted bytes are allowed here. In fact i tried reading into
byte[1024] and byte[4096] but then downloaded file is 140kB and 160kB
instead of 116kB- which is the size of the file i want to downlaod. To
large file is corrupted and cannot be run.


You can get any file by reading with large buffers - it only
affects performance not functionality.

Code snippet:

             URL url = new URL(urlstr);
             HttpURLConnection con =
(HttpURLConnection)url.openConnection();
             con.connect();
             if(con.getResponseCode() == HttpURLConnection.HTTP_OK) {
                InputStream is = con.getInputStream();
                OutputStream os = new FileOutputStream(fnm);
                byte[] b = new byte[100000];
                int n;
                while((n = is.read(b)) >= 0) {
                   os.write(b,0,n);
                }
                os.close();
                is.close();
             }
             con.disconnect();

Arne


Thanx Arne,

i used your snippet and now my function works fine :-) There is no
diffrence between Linux and Windows Xp now. So reading one byte at a
time was the problem.

Thanx all :-)

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