Re: speeding up URLConnection reading

From:
su_dang@hotmail.com
Newsgroups:
comp.lang.java.programmer
Date:
10 Nov 2006 11:24:14 -0800
Message-ID:
<1163186654.698234.273610@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


You might want to put some statements to see how long it takes to
establish the connection and how long it takes to read the content.

Su Dang

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