hi all
i made a java application through user can access webpage through proxy server, but this works for only some pages like (
http://www.iita-conference.org,yahoo.com,iiitk.ac.in etc) it not works for like rediff.com, ieeeexplore,orkut etc. i also post the code plz tell me where is the problem? why it not works for all URLs?
if possible plz send code too.
package ieee;
import java.io.InputStream;
import java.net.Authenticator;
import java.net.HttpURLConnection;
import java.net.PasswordAuthentication;
import java.net.URL;
import java.util.Properties;
import java.util.logging.Level;
import java.util.logging.Logger;
/**
*
* @author sknavin
*/
public class Main {
/**
* @param args the command line arguments
*/
private static String loadPage(URL parURL) throws Exception {
Properties sysProps = System.getProperties();
sysProps.put("proxySet", "true");
sysProps.put("proxyHost", "172.31.1.3");
sysProps.put("proxyPort", "8080");
Authenticator authenticator = new Authenticator() {
public PasswordAuthentication getPasswordAuthentication() {
return (new PasswordAuthentication("userID","password".toCharA rray()));
}
};
Authenticator.setDefault(authenticator);
long lTime = System.currentTimeMillis();
StringBuffer sb = new StringBuffer("");
String http = parURL.toString();
// Create a connection.
HttpURLConnection urlConnection =
(HttpURLConnection) parURL.openConnection();
urlConnection.setRequestMethod("GET");
urlConnection.setDoOutput(true);
urlConnection.setDoInput(true);
urlConnection.setRequestProperty("USER-AGENT", "Mozilla/2.02Gold (WinNT; I)");
//
urlConnection.setRequestProperty("Content-type", "application/x-www-form-urlenCcoded");
urlConnection.setAllowUserInteraction(true);
urlConnection.connect();
InputStream in =
((HttpURLConnection) urlConnection).getInputStream();
int length = urlConnection.getContentLength();
for (int n = 0; n < length; n++) {
sb.append((char) in.read());
}
return sb.toString();
}
public static void main(String[] args) {
try {
// type your intended url here
URL url = new URL("http://www.iita-conference.org/");
String s = loadPage(url);
System.out.println("S=" + s);
} catch (Exception ex) {
Logger.getLogger(Main.class.getName()).log(Level.S EVERE, null, ex);
}
}
}