Re: Downloading a file in Linux

From:

=?ISO-8859-1?Q?Arne_Vajh=F8j?= <arne@vajhoej.dk>

Newsgroups:

comp.lang.java.programmer

Date:

Sun, 19 Aug 2007 17:14:10 -0400

Message-ID:

<46c8b29a$0$90263$14726298@news.sunsite.dk>

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