Hi, I have a problem when trying to comparing the speed between JDK HttpURLConnection and HttpClient.
Now I have two methods, one is performed with jdk(1.5) httpurlConnection, the other is performed with httpClient( 3.0.1). Both of them try to download the same webpage(http://jakarta.apache.org).After<http://jakarta.apache.org%29.After>testing, the average time which performed JDK httpurlconnection is 200ms, so as the one which performed httpclient.That means their speeds are almost the same. So, since HttpClient use persistence connection default but JDK do not, why httpClient's speed could not be more fast than JDK? Another problem is, is it normal to httpclient to use 200ms to download a page like http://jakarta.apache.org? I mean, when using persistence connection, maybe this could not be accepted. Any help will be great appreciated ----------------------------------------Source to httpclient method------------------------------------- public void testGetMethod(){ MultiThreadedHttpConnectionManager manager=new MultiThreadedHttpConnectionManager(); manager.getParams().setConnectionTimeout(3000); manager.getParams ().setDefaultMaxConnectionsPerHost(1); // manager.getParams().setMaxTotalConnections(30); HttpClient httpClient = new HttpClient(manager); // Set the default host/protocol for the methods to connect to. // This value will only be used if the methods are not given an absolute URI // httpClient.getHostConfiguration().setProxy("192.168.0.10",80); // httpClient.getHostConfiguration().setHost("jakarta.apache.org", 80, "http"); GetMethod method = new GetMethod(" http://jakarta.apache.org";); for (int i=0;i<10;i++){ try { // System.out.println(" - about to get something from " + method.getURI()); // execute the method long start=System.currentTimeMillis(); httpClient.executeMethod(method); // System.out.println(" - get executed"); // get the response body as an array of bytes byte[] bytes = method.getResponseBody(); System.out.println("cost time is "+(System.currentTimeMillis ()-start)); // System.out.println(new String(bytes)); // System.out.println(" - " + bytes.length + " bytes read"); } catch (Exception e) { System.out.println(" - error: " + e); } finally { // always release the connection after we're done method.releaseConnection(); // System.out.println(" - connection released"); } } } ------------------------------------------source code to JDK httpurlconnection------------------------------------------------ public void testJDKHttpURlconnection() { for (int i = 0; i < 10; i++) { try { long start = System.currentTimeMillis(); URL requestedURL = new URL("http://jakarta.apache.org";); HttpURLConnection conn = (HttpURLConnection) requestedURL .openConnection(); conn.setRequestProperty("User-Agent", "Mozilla/4.0 (compatible; MSIE 5.5; Windows NT 5.0 )"); conn.setUseCaches(false); conn.connect(); BufferedInputStream remoteBIS = new BufferedInputStream(conn .getInputStream()); ByteArrayOutputStream baos = new ByteArrayOutputStream(10240); byte[] buf = new byte[1024]; int bytesRead = 0; while (bytesRead >= 0) { baos.write(buf, 0, bytesRead); bytesRead = remoteBIS.read(buf); } byte[] content = baos.toByteArray(); System.out.println("cost time is " + (System.currentTimeMillis() - start)); } catch (Exception e) { } } }
