Forms表单登陆，动态获取web.config里面的cookies配置

以前写死的写法是

 1:  //设置登录权限

 2:                  HttpCookie cook;

 3:   

 4:                  string roles = "admin";//用户角色

 5:  

 6:                  FormsAuthenticationTicket ticket = new FormsAuthenticationTicket(

 7:   

 8:                  1, tid, DateTime.Now, DateTime.Now.AddMinutes(600), true, roles);

 9:   

10:                  cook = new HttpCookie(".xxxxCookie");

11:                  cook.Domain = ".youxxxxx.com";

12:                  cook.Value = FormsAuthentication.Encrypt(ticket);

13:   

14:                  Response.Cookies.Add(cook);

15:                  //权限结束

16:  

动态读取的写法是

 1:  //设置登录权限

 2:                  HttpCookie cook;

 3:   

 4:                  string roles = "admin";//用户角色

 5:  

 6:                  FormsAuthenticationTicket ticket = new FormsAuthenticationTicket(

 7:   

 8:                  1, tid, DateTime.Now, DateTime.Now.AddMinutes(600), true, roles);

 9:   

10:                  AuthenticationSection authen = WebConfigurationManager.GetSection("system.web/authentication") as AuthenticationSection;

11:                  string cookName = authen.Forms.Name;

12:                  string cookDomain = authen.Forms.Domain;

13:                  cook = new HttpCookie(cookName); //".xxxxCookie"

14:                  cook.Domain = cookDomain;   //.youxxxx.com

15:                  cook.Value = FormsAuthentication.Encrypt(ticket);

16:   

17:                  Response.Cookies.Add(cook);

18:                  //权限结束

19:  

动态读取的好处就是，你修改了web.config里面的配置，我就不用去登陆界面修改cookies的名称和域名等信息了