why i can't get cookie from a special web site?

[jieyun liu]

public static void main(String[] args) throws Exception {
 
// I can get the cookie from "http://www.baidu.com"
// String domain1 = "http://www.baidu.com/";
// String domain2 = "www.baidu.com";
 
// I can get the cookie from "http://www.google.com"
// String domain1 = "http://www.google.com/";
// String domain2 = "www.google.com";
 
// I can not get the cookie from "http://www.csdn.net"
String domain1 = "http://www.csdn.net/";
String domain2 = "www.csdn.net";
 
URL url = new URL(domain1);
HttpURLConnection httpConn = (HttpURLConnection) url.openConnection();
httpConn.setRequestProperty("User-Agent", "Internet Explorer");
httpConn.setRequestProperty("Host", domain2);
httpConn.connect();
 
String cookie = httpConn.getHeaderField("Set-Cookie");
System.out.println(cookie);
}

My question is: How can I get the cookie from the web site:http://www.csdn.net?

[Paul Sturrock]

"hea ton", please check your private messages.

[jieyun liu]

Originally posted by Paul Sturrock:
"hea ton", please check your private messages.

i have changed my name, is that right?

[Pat Farrell]

Originally posted by hea ton:
My question is: How can I get the cookie from the web site: http://www.csdn.net?[/b][/QB]

Cookie security rules say that only two places can get to a cookie.

1) the user can get them from his browser
2) a site can get those created for their domain

So the answer is to be on www.csdn.net and get them there

[jieyun liu]

hi, Pat. First, Thanks for your help.
But I am still in trouble.
I know where I shoule get the cookie from, But i don't know how.

you refer to the cookie security rules, can you give me some urls of books or references?

[Ulf Dittmer]

What do you mean by "the cookie"? That page doesn't set any cookies. It includes various elements that do so (images, iframes etc.) though; if you want to access the cookies set by those, then you'll need to load those elements in addition to the main page.

[William Brogden]

Cookie rules are contained in RFC2965 - a google search will lead you straight to a copy of this standard.
Bill

[jieyun liu]

Originally posted by William Brogden:
Cookie rules are contained in RFC2965 - a google search will lead you straight to a copy of this standard.
Bill

One Month ago, I have read the reference.
But I can not find the answer.

[Ulf Dittmer]

But I can not find the answer.

If the question is still the original one -how to get a cookie from that page- then I would have thought that my post answers that ... not so?

[William Brogden]

How did the the cookie from "http://www.csdn.net" get set in the first place?

In what interaction did csdn.net get a request and send a response HTTP header setting a cookie?

What received the response containing the cookie?

Bill