跨域共享Cookie

最新推荐文章于 2021-01-17 15:57:31 发布

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最新推荐文章于 2021-01-17 15:57:31 发布

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原文链接：http://www.cnblogs.com/NRabbit/archive/2008/05/15/1736221.html

摘自：http://www.cnblogs.com/Ihaveadream/archive/2008/05/02/1178538.html

Cookie有三个属性需要注意一下：
    1. Domain 域
    2. Path       路径
    3. Expires 过期时间

跨域操作需要设置域属性:
Response.Cookies("MyCookie").Domain = "cnblogs.com"; (这里指的是泛域名)
这样在其它二级域名下就都可以访问到了， ASP 和 ASP.NET 测试通过

虚拟目录下访问：
我在ASP端做了下测试，.NET的没试, 如果不指定Path属性，不同虚拟目录下Cookie无法共享
将Response.Cookies("MyCookie").Path = "/" 就可以了

总的写法:
Response.Cookies("MyCookie").Domain = "cnblogs.com";
Response.Cookies("MyCookie").Path = "/"
Response.Cookies("MyCookie").Expires = Now + 365;
Response.Cookies("MyCookie")("Test") = "test";

.NET 清除Cookie

1 HttpCookie cookie = System.Web.HttpContext.Current.Request.Cookies[cookiename];
2 if (cookie != null )
3 {
4                 cookie.Values.Clear();
5                 SetUserCookieExpireTime(cookiename, - 1 );
6                 cookie.Domain = _domain;
7                 System.Web.HttpContext.Current.Response.Cookies.Set(cookie);
8 }
9 public static void SetUserCookieExpireTime( string key, int days)
10 {
11             System.Web.HttpContext.Current.Response.Cookies[key].Domain = _domain;
12             System.Web.HttpContext.Current.Response.Cookies[key].Path = _cookiepath;
13             System.Web.HttpContext.Current.Response.Cookies[key].Expires = DateTime.Now.AddDays(days);
14 }
15

.NET 添加/更新Cookie

1 public static void AddUserCookies( string key, string value, string cookiename, string domain)
2 {
3             HttpCookie cookie = System.Web.HttpContext.Current.Request.Cookies[cookiename];
4              if (cookie == null )
5             {
6                 cookie = new HttpCookie(cookiename);
7                 cookie.Domain = domain;
8                 cookie.Path = _cookiepath;
9
10                 cookie.Values.Add(key, value);
11                 HttpContext.Current.Response.AppendCookie(cookie);
12             }
13              else
14             {
15                  if (System.Web.HttpContext.Current.Request.Cookies[cookiename].Values[key] != null )
16                 {
17                     cookie.Values.Set(key, value);
18                 }
19                  else
20                 {
21                     cookie.Domain = domain;
22                     cookie.Path = _cookiepath;
23
24                     cookie.Values.Add(key, value);
25                     HttpContext.Current.Response.AppendCookie(cookie);
26                 }
27             }
28 }
29

转载于:https://www.cnblogs.com/NRabbit/archive/2008/05/15/1736221.html