//注意，需要引用System.Runtime.Serialization.Formatters.Soap.dll程序集
public const string SESSIONDATAPATH = "C:\SessionData\" ;
private void Application_AcquireRequestState( object sender, EventArgs e)
{
System.IO.FileStream fs;
System.Runtime.Serialization.Formatters.Soap.SoapFormatter sf = new System.Runtime.Serialization.Formatters.Soap.SoapFormatter();
try
{
//获取特定的cookie,如果找不到,则退出.
HttpCookie cookie = Request.Cookies["PermSessionID"];
if(cookie == null)
{
//如果找不到,则生成一个(使用伪随机的SessionID)
cookie = new HttpCookie("PermSessionID", Session.SessionID);
//使该cookie在1星期之后到期
cookie.Expires = DateTime.Now.AddDays(7);
//将其发往客户端浏览器
Response.Cookies.Add(cookie);
}
//文件名等于该cookie的值
string permSessionId = cookie.Value;
//生成数据文件的名称
string filename = SESSIONDATAPATH + permSessionId.ToString() + ".xml";
//打开文件,如果出错,则退出
fs = new System.IO.FileStream(filename, IO.FileMode.Open); |
