How to connect to an url password protected?

[taxista]

Hi, I am doing a java program to conect to a web page that is password protected. I mean, the server asks me for a user and password to log to acess to that file. I am using the url.openconnection()method, and the url is in the shape

http://user:password@host:port

but I annot enter the page, though when I use that in my web browser I can do it.

What am I missing?

Thanks

 

[OttSens]

Try doing a setAllowUserInteractionn(true) on the URL
connection.
This should allow a password dialog to pop up.
There also is a way to put the password in the header
of the request. It typically is base64 encoded but
without looking at a browser->server stream I can't remember
the syntax.

Also try a setRequestProperty(String key,String value)
on the URLConnection.

 

[OttSens]

Try doing a setAllowUserInteractionn(true) on the URL
connection.
This should allow a password dialog to pop up.
There also is a way to put the password in the header
of the request. It typically is base64 encoded but
without looking at a browser->server stream I can't remember
the syntax.

Also try a setRequestProperty(String key,String value)
on the URLConnection.
Either of these methods I believe you'll need to change
the URLConnection parameters from

http://user:password@host:port

to

http://host:port

 

[taxista]

Thanks but... the first solution setAllowUserInteractionn(true), doesn't seen to work, at least, nothing different happens.(nor a pop up window...)
And the other one...the setrequest...maybe I do not know enough of this yet, cause I do not know what key or value can be...

This is part of the code I have:

static String host="

http://www.ahost.com";

static String protocolo="http";
static int puerto = 85;
static String fichero = "/";
static DataInputStream stream;
static URLConnection urlcon = null;
static URL url = null;
static String user = "user";
static String password = "password";

/** Creates new Main */
public static void main(String[] args) {

conectar();// the function that does almost it all

}// Main()


static private void conectar()
{

// Creo la URL
try{
Authenticator.setDefault(new Validador ());

url = new URL (protocolo,host,puerto,fichero);

}
catch (MalformedURLException e) {
System.out.println("URL mal construida \n"
}
catch (IOException excepcion){
System.out.println("Error IO al crear la URLConnection " + excepcion.getMessage());
}


try {

URLConnection uc = url.openConnection();
uc.setAllowUserInteraction(true);

stream =new DataInputStream(uc.getInputStream());
stream.close();


}catch (IOException x) {
System.out.println("IOException al conectar: " + x.getMessage());
}
}
}// prueba


And the Validador class is


class Validador extends Authenticator{

String user="user";
String password="password";

Validador () {

super();

}

public PasswordAuthentication getPasswordAuthenticator ()
{
return (new PasswordAuthentication (user, password.toCharArray()));
}
}//inner class



Any help? any sugestion?

The problem is to access to a web server where that page is password protected

 

[OttSens]

Your problem is that you need to read from the inputstream
after opening the connection.
stream =new DataInputStream(uc.getInputStream());
byte b[]=new byte[2000];
while((int i=stream.read(b,0,2000))!=-1)
System.out.print(new String(b,0,i);
stream.close();



The first solution won't help outside a browser.
For the second the key value pairs would be
("password","personsPassword&quot and ("user","username&quot

 

[taxista]

Hummm... well, trying not to do a long message I didn't write a sentence after this:
stream =new DataInputStream(uc.getInputStream());

that calls a procedure that reads the DataInputStream


But as you say, this won't hellp outside a browser, and I am not using a browser.
About the second solution you gave me... I write just under the URLConnection creation
URLConnection uc = url.openConnection();

the following lines:
uc.setRequestProperty("user",user);
uc.setRequestProperty("password",password);
(user and password are string defined with their correct values)
But still the 401 message (unauthorized) appears, and nothing new happens.

Maybe this is going into a mess...but... what am I doing wrong?

Thanks