public static int loginSystem(String uid, HttpSessionState session)
{
if (uid == null)
{
throw new ArgumentNullException("用户名");
}
try
{
int ret = DbSelect.checkUserPrivilege(uid);
if (ret == FAILED)
{
throw new Exception("登录系统时出错：您没有权限进入本系统后台！");
}
}
catch (Exception ex)
{
throw new Exception(String.Format("登录系统时出错：{0}", ex.Message));
}
session["UserID"] = uid;
session["LoginTime"] = DateTime.Now.ToString();
readSessionInfo(session);
return(OK);
}