Asp.net网站怎么保存用户的历史访问记录

Asp.net网站如何保存用户的历史访问记录
如题将用户的ip地址，及ip所在的地址存入数据库，最好有代码

[解决办法]

C# code

if (Request.ServerVariables["HTTP_VIA"] != null)            {                GuestIP = Request.ServerVariables["HTTP_X_FORWARDED_FOR"].ToString();            }            else            {                if (Request.ServerVariables["HTTP_VIA"] != null)                {                    GuestIP = Request.ServerVariables["HTTP_X_FORWARDED_FOR"].ToString();                }                else                {                    GuestIP = Request.ServerVariables["REMOTE_ADDR"].ToString();                }            }
[解决办法]
C# code
private string GetClientIP()  {  string result = HttpContext.Current.Request.ServerVariables["HTTP_X_FORWARDED_FOR"];  if (null == result || result == String.Empty)  {  result = HttpContext.Current.Request.ServerVariables["REMOTE_ADDR"];  }  if (null == result || result == String.Empty)  {  result = HttpContext.Current.Request.UserHostAddress;  }  return result;  }
[解决办法]
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C# code


if (Request.ServerVariables["HTTP_VIA"] != null)
            {
                GuestIP = Request.ServerVariables["HTTP_X_FORWARDED_FOR"].ToString();
            }
            else
        ……