Why I can't get the cookie from this web site when I can get it from google

Question

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?

Answer 1

I found it in my computer , the location is: C:\Documents and Settings\zhijun\Cookies\zhijun@csdn[2].txt
and there are many characters, they are:
__utma
17226283.1339458738.1221633513.1223535733.1223539291.58
csdn.net/
1600
786595712
30107528
1029600608
29960677
__utmz
17226283.1223539291.58.57.utmccn=(organic)|utmcsr=baidu|utmctr=VB.NET%B2%BB%C4%DC+%B6%CF%B5%E3|utmcmd=organic
csdn.net/
1600
4189609856
29997389
1029910608
29960677
LastVisitedForum
b7e466c6-291a-4072-acee-15d2be78c647*b5f1380c-f04c-4682-861a-54357b14186a*0a4a010e-8694-4139-b91f-a4ee1374981b*caa7532e-956b-4661-a53f-d46e3f1a8187*8b327318-2c42-4a49-8aed-ef8c33697e7f
csdn.net/
1536
2105548800
29964700
960690608
29960677
userid
2018946
csdn.net/
1536
1900813440
29963485
771368976
29960669
__utmb
17226283
csdn.net/
1600
1849111424
29960681
1029760608
29960677
ABCDEF
X1rZPCiZupWekhlTu78xWhr2Oj5GmFwk0J%252b8COfIv7IvVh2PgEPu2V7ooeZuUnene2j%252fDKJsNnZWYBSQxVkTfunvGq%252fDYuzFALM0ugLUmppZAHgfUWgQ%252bziPRLLJyFdzUpHwfG%252fReU8SfFy588HH02NPWPsO8RjgtHym%252bcJdUOnIH5J%252bkPEj%252b%252bZwlSPb5u0M0mPQRU1gOScfY4b981MifF4ksep8sZp1Ro2ofGHIg6l%252bgJ0P0XFASz2cJU8Objo%252f
csdn.net/
1536
1900813440
29963485
770898976
29960669
QWERTOP
6695
csdn.net/
1536
1900813440
29963485
771058976
29960669
activeUserName
boxiuzhen
csdn.net/
1536
1900813440
29963485
771058976
29960669
UserName
boxiuzhen
csdn.net/
1536
1900813440
29963485
771058976
29960669
PName
542a00960558bf1690fe08696d1245f407130025d59bd14ad6430f
csdn.net/
1536
1900813440
29963485
771368976
29960669
Is this prove that the csdn web site which I  can not get the cookie is not using url-rewriting?