Re: How to program with proxy

From:

"moonhk" <moon_ils-se@yahoo.com.hk>

Newsgroups:

comp.lang.java.programmer

Date:

13 Aug 2006 20:00:55 -0700

Message-ID:

<1155524455.683953.20490@p79g2000cwp.googlegroups.com>

Arne Vajh=F8j wrote:

moonhk wrote:

Checked with our Administrator, it is proxy server setting. Need to
input username/password in Browser.

BASIC authentication ? (popup in browser ?)

Try with:

Authenticator.setDefault(new MyAuthenticator());

where:

class MyAuthenticator extends Authenticator {
    protected PasswordAuthentication getPasswordAuthentication() {
       return new PasswordAuthentication("xxxx", "xxxx".toCharArray());
    }
}

but I think it is a bit unusual to use HTTP BASIC authentication
with a proxy server.

Arne

try. But not work. At home below java coding is worked.

C:\Example\javaux\net>java eproxy_tofile
Conneting ... http://www.new-alliance.com/Naam_NAV.htm
java.io.IOException: Server returned HTTP response code: 500 for URL:
http://www.new-alliance.com/Naam_NAV.htm
        at
sun.net.www.protocol.http.HttpURLConnection.getInputStream(HttpURLConnectio=
n.java:800)
        at java.net.URL.openStream(URL.java:913)
        at eproxy_tofile.main(eproxy_tofile.java:53)

C:\Example\javaux\net>

/*

eproxy_tofile.java
2006/08/14 eric.leung

Environment variable set to
* CLASSPATH=c:\j2sdk1.4.1_01\lib\classes.zip;c:\example;.
*
*/

import java.util.Properties;
import java.io.*;
import java.net.*;
import java.net.Authenticator;

public class eproxy_tofile {
  public static void main(String[] args) {
    Properties systemSettings = System.getProperties();

class MyAuthenticator extends Authenticator {
    protected PasswordAuthentication getPasswordAuthentication() {
       return new PasswordAuthentication("xxx", "xxx".toCharArray());
    }

}
      // String host,port,userid,passwd;

    systemSettings.put("proxySet","true");
     systemSettings.put("http.proxyHost",host);
     systemSettings.put("http.proxyPort",port);

   // System.setProperty("https.proxyUserName",userid);
   // System.setProperty("https.proxyPassword",passwd);

     System.setProperties(systemSettings);

      Authenticator.setDefault(new MyAuthenticator());

    try {

    String Addr = "http://www.new-alliance.com/Naam_NAV.htm";

     URL yahoo = new URL(Addr);
     System.out.println("Conneting ... " + Addr);

     BufferedReader in = new BufferedReader(new InputStreamReader
     (yahoo.openStream()));

     String inputLine;
     while ((inputLine = in.readLine()) !=null)
     System.out.println(inputLine);
    in.close();

    }
    catch (Exception exc) {
     exc.printStackTrace();
    =09
    =09
    }

  }

}