Authenticator.setDefault(new Authenticator()); : Authenticator « Network Protocol « Java

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Java » Network Protocol » Authenticator 




Authenticator.setDefault(new Authenticator());
 

import java.io.BufferedReader;
import java.io.InputStreamReader;
import java.net.Authenticator;
import java.net.InetAddress;
import java.net.PasswordAuthentication;
import java.net.URL;

public class Main {
  public static void main(String[] argvthrows Exception {
    Authenticator.setDefault(new MyAuthenticator());
    URL url = new URL("http://hostname:80/index.html");

    BufferedReader in = new BufferedReader(new InputStreamReader(url.openStream()));
    String str;
    while ((str = in.readLine()) != null) {
      System.out.println(str);
    }
    in.close();
  }
}

class MyAuthenticator extends Authenticator {
  
  protected PasswordAuthentication getPasswordAuthentication() {
    String promptString = getRequestingPrompt();
    System.out.println(promptString);
    String hostname = getRequestingHost();
    System.out.println(hostname);
    InetAddress ipaddr = getRequestingSite();
    System.out.println(ipaddr);
    int port = getRequestingPort();

    String username = "name";
    String password = "password";
    return new PasswordAuthentication(username, password.toCharArray());
  }
}

   
  














Related examples in the same category
1.String java.net.Authenticator.getRequestingPrompt()
2.String java.net.Authenticator.getRequestingHost()
3.InetAddress java.net.Authenticator.getRequestingSite()
4.int java.net.Authenticator.getRequestingPort()
5.Identify yourself using HTTP Authentification
6.java.net.PasswordAuthentication.PasswordAuthentication(String userName, char[] password)
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