登陆问题，浏览器是如何知道下一次请求网址的？ - 苏飞论坛

上传

点击文件名下载附件
我的疑问是浏览器是访问https://account.xiaomi.com/pass/serviceLogin?后
是如何知道下一次请求网址(https://account.xiaomi.com/pass/ ... p;_dc=1453106363536)的？

另外每次清楚cookie后访问https://account.xiaomi.com/pass/serviceLogin?，第二个请求https://account.xiaomi.com/pass/ ... p;_dc=1453106363536，中的dc=***************会变，这个dc值是浏览器自已自动产生的还是
服务器分配的？如果是分本的话。它是怎么告诉浏览器的？我看了看response全文里没提及dc=

response原文如下：

Cache-Control:
no-cache
Cache-Control:
no-cache
Cache-Control:
no-cache
Connection:
keep-alive
Content-Encoding:
gzip
Content-Type:
text/html; charset=UTF-8
Date:
Mon, 18 Jan 2016 08:39:21 GMT
Expires:
Thu, 01 Dec 1994 16:00:00 GMT
Server:
Tengine
Set-Cookie:
cUserId=EXPIRED; domain=.xiaomi.com; path=/; expires=Thu, 01-Dec-1994 16:00:00 GMT
Set-Cookie:
JSESSIONID=aaaLvlmzOpXrt9Ff7a2iv; path=/
Set-Cookie:
deviceId=wb_68a8a6f2-3deb-45c5-ba58-a8a37693af94; domain=account.xiaomi.com; path=/; expires=Sat, 05-Feb-2084 11:53:28 GMT
Set-Cookie:
userId=EXPIRED; path=/; expires=Thu, 01-Dec-1994 16:00:00 GMT
Set-Cookie:
userId=EXPIRED; domain=account.xiaomi.com; path=/; expires=Thu, 01-Dec-1994 16:00:00 GMT
Set-Cookie:
userId=EXPIRED; domain=.xiaomi.com; path=/; expires=Thu, 01-Dec-1994 16:00:00 GMT
Set-Cookie:
userId=EXPIRED; domain=account.xiaomi.com; path=/pass/auth; expires=Thu, 01-Dec-1994 16:00:00 GMT
Set-Cookie:
userId=EXPIRED; domain=.xiaomi.com; path=/pass/auth; expires=Thu, 01-Dec-1994 16:00:00 GMT
Set-Cookie:
serviceToken=EXPIRED; path=/; expires=Thu, 01-Dec-1994 16:00:00 GMT
Set-Cookie:
serviceToken=EXPIRED; domain=.xiaomi.com; path=/; expires=Thu, 01-Dec-1994 16:00:00 GMT
Set-Cookie:
serviceToken=EXPIRED; domain=account.xiaomi.com; path=/; expires=Thu, 01-Dec-1994 16:00:00 GMT
Set-Cookie:
serviceToken=EXPIRED; path=/pass/auth; expires=Thu, 01-Dec-1994 16:00:00 GMT
Set-Cookie:
serviceToken=EXPIRED; domain=account.xiaomi.com; path=/pass/auth; expires=Thu, 01-Dec-1994 16:00:00 GMT
Set-Cookie:
serviceToken=EXPIRED; domain=.xiaomi.com; path=/pass/auth; expires=Thu, 01-Dec-1994 16:00:00 GMT
Set-Cookie:
cUserId=EXPIRED; path=/; expires=Thu, 01-Dec-1994 16:00:00 GMT
Set-Cookie:
uLocale=zh_CN; domain=.xiaomi.com; path=/; expires=Tue, 02-Feb-2016 08:39:21 GMT
Set-Cookie:
cUserId=EXPIRED; domain=account.xiaomi.com; path=/; expires=Thu, 01-Dec-1994 16:00:00 GMT
Set-Cookie:
cUserId=EXPIRED; domain=account.xiaomi.com; path=/pass/auth; expires=Thu, 01-Dec-1994 16:00:00 GMT
Set-Cookie:
cUserId=EXPIRED; domain=.xiaomi.com; path=/pass/auth; expires=Thu, 01-Dec-1994 16:00:00 GMT
Set-Cookie:
passToken=EXPIRED; path=/; expires=Thu, 01-Dec-1994 16:00:00 GMT
Set-Cookie:
passToken=EXPIRED; domain=account.xiaomi.com; path=/; expires=Thu, 01-Dec-1994 16:00:00 GMT
Set-Cookie:
passToken=EXPIRED; domain=account.xiaomi.com; path=/; expires=Thu, 01-Dec-1994 16:00:00 GMT
Set-Cookie:
continue=EXPIRED; path=/; expires=Thu, 01-Dec-1994 16:00:00 GMT
Set-Cookie:
sns_type=EXPIRED; domain=.xiaomi.com; path=/; expires=Thu, 01-Dec-1994 16:00:00 GMT
Set-Cookie:
sns_weixin_openId=EXPIRED; domain=.xiaomi.com; path=/; expires=Thu, 01-Dec-1994 16:00:00 GMT
Set-Cookie:
sns_weixin_openId=EXPIRED; domain=account.xiaomi.com; path=/; expires=Thu, 01-Dec-1994 16:00:00 GMT
Set-Cookie:
etao_qs=EXPIRED; domain=account.xiaomi.com; path=/; expires=Thu, 01-Dec-1994 16:00:00 GMT
Set-Cookie:
pass_trace=zCzdrInwyxJaQHgLajqLI0ylcUPl3kV28C/MgBLW4JaQYgbyHpfrBauDBL6Zj6Q7pA+cmMLbFUT8WImgbkjHk/sfesaxSSmkUliqdLpsFKFDWfeeguhuK5/QjyuVoTeB; domain=account.xiaomi.com; path=/; expires=Sat, 05-Feb-2084 11:53:28 GMT
Strict-Transport-Security:
max-age=7
Transfer-Encoding:
chunked
X-Frame-Options:
SAMEORIGIN

作者: helloword 时间: 2016-1-18 23:16
js写的

欢迎光临苏飞论坛 (http://www.sufeinet.com/)