Cookie的创建和使用


存储Cookie:

 1 HttpCookie cookie=new HttpCookie("用户名");
 2 DateTime dt=DateTime.Now;
 3 TimeSpan ts=new TimeSpan(0,0,6,0);
 4 cookie.Expires=dt.Add(ts);            //设置过期时间为6分钟后。
 5 cookie.Domain=                        //设置其应用的域。
 6 cookie.Path=                          //设置路径。
 7 cookie.Secure=                        //设置安全。
 8 cookie.Value="";                      //存储一个值。
 9 cookie.Values.Add("关键字","设置的值"); //存储多个值。
10 Response.AppendCookie(cookie);        //将设置的Cookie应用到Response对象中。

读取Cookie:

1 HttpCookie read=Request.Cookies["用户名"];
2 如只存储一个值则:read.Value;
3 读取储存有多个值的Cookie则:read.Values["关键字"].ToString();

清除cookies:

 1 const int cookies = 33;
 2 Shell32.Folder objFolder;
 3 Shell32.FolderItems objFolderItems;
 4 Shell32.ShellClass objShell;
 5 objShell = new Shell32.ShellClass();
 6 objFolder = objShell.NameSpace(cookies);
 7 objFolderItems = objFolder.Items();
 8 foreach(Shell32.FolderItem objFolderItem in objFolderItems)
 9 {
10  if(!"index.dat".Equals(objFolderItem.Name.ToLower()))
11  {
12    File.Delete(objFolderItem.Path.ToString());
13  }
14 }

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