Question

ASP.NET程序中,怎样获取每次会话的客户端IP地址？

请问一下，用ASP.NET如何在每次会话发起时(global.asax中的Session_Start函数)，获取客户端的IP地址呢？

Answer 1

private string getIp()
{
// 穿过代理服务器取远程用户真实IP地址
string Ip = string.Empty;
if (Request.ServerVariables["HTTP_VIA"] != null)
{
if (Request.ServerVariables["HTTP_X_FORWARDED_FOR"] == null)
{
if (Request.ServerVariables["HTTP_CLIENT_IP"] != null)
Ip = Request.ServerVariables["HTTP_CLIENT_IP"].ToString();
else
if (Request.ServerVariables["REMOTE_ADDR"] != null)
Ip = Request.ServerVariables["REMOTE_ADDR"].ToString();
else
Ip = "202.96.134.133";
}
else
Ip = Request.ServerVariables["HTTP_X_FORWARDED_FOR"].ToString();
}
else if (Request.ServerVariables["REMOTE_ADDR"] != null)
{
Ip = Request.ServerVariables["REMOTE_ADDR"].ToString();
}
else
{
Ip = "202.96.134.133";
}
return Ip;
}

Answer 2

string GetIp()
{
//可以透过代理服务器
string userIP = Request.ServerVariables["HTTP_X_FORWARDED_FOR"];

//如果没有代理服务器,有代理服务器获取的是代理服务器IP
if (userIP == null || userIP == "")
{
userIP = Request.ServerVariables["REMOTE_ADDR"];
}
return userIP;
}

Answer 3

HttpContext.Current.Request.UserHostAddress

Answer 4

Page thisPage = Context.CurrentHandler as Page;
thispage.Request.

Answer 5

网路上一大堆这种代码