Re: speeding up URLConnection reading

From:
"Daniel Pitts" <googlegroupie@coloraura.com>
Newsgroups:
comp.lang.java.programmer
Date:
10 Nov 2006 10:01:10 -0800
Message-ID:
<1163181669.646290.295860@i42g2000cwa.googlegroups.com>
mark wrote:

Hello,

Raise that buffer from 1024 to 16384.


Thank you. I did it but still no big improvement. I actually tried to
play with jacarta httpClient and it increases the performance. The
problem is that it is still unsatisfactory (i.e. it got the websites
(cause I am going through a lot of pages at once) in 10 minutes, while
my friend's script in visual basic did it in 3 minutes. So the
difference is big, too big :(.

GetMethod httpget = new GetMethod(fileName);
httpget.setDoAuthentication(false);
httpget.getParams().setParameter("http.connection.stalecheck", false);
httpget.getParams().setParameter("http.protocol.expect-continue",
false);
try {
httpclient.executeMethod(httpget);
Reader reader = new InputStreamReader(
httpget.getResponseBodyAsStream(), httpget.getResponseCharSet());
char[] buf = new char[131072];
int read;
while((read = reader.read(buf)) > 0) {
htmlCode.append(buf, 0, read);
}} catch (Exception e) {
    e.printStackTrace();
} finally {
    httpget.releaseConnection();
} return htmlCode.toString();

Any ideas how could I greatly improve its quality (is it possible in
java)??

Regards, mark


Multithread it, if you're downloading more than one thing, do them in
paralelle.

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