C#获取用户登录IP地址

public static string GetUserIp()
{
string ip;
string[] temp;
bool isErr = false;
if (System.Web.HttpContext.Current.Request.ServerVariables["HTTP_X_ForWARDED_For"] == null)

{
ip = System.Web.HttpContext.Current.Request.ServerVariables["REMOTE_ADDR"].ToString()

}

else

{
ip = System.Web.HttpContext.Current.Request.ServerVariables["HTTP_X_ForWARDED_For"].ToString();

}
if (ip.Length > 15)

{

isErr = true;

}
else
{
temp = ip.Split('.');
if (temp.Length == 4)
{
for (int i = 0; i < temp.Length; i++)
{
if (temp[i].Length > 3) isErr = true;
}
}
else
isErr = true;
}

if (isErr)

{

return "1.1.1.1";

}
else
{

return ip;

}
}

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C#获取用户登录IP地址

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