[ASP.NET MVC] 取得 Request 常用資訊 (IP, 作業系統, 瀏覽器, 呼叫網址)

6 thoughts on “[ASP.NET MVC] 取得 Request 常用資訊 (IP, 作業系統, 瀏覽器, 呼叫網址)”

1. 為什麼我會抓到自己內網的IP 而不是訪客的真實IP呢?

   回覆

   1. 你是不是連自己的內網呢？是的話就會出現內網IP喔
      如果是訪客身份去連別人的網站，才會出現訪客的 IP

      回覆

      1. 我是從家裡的手機網路 和 家裡的網路 連網站 抓到的都是內網 IP 讓我覺得納悶

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         1. 我這裡提供其他取 ip 的方法給你參考
            
///

            /// 取得本機 IP Address
            ///

            ///
            public static List GetHostIPAddress()
            {
            List lstIPAddress = new List();
            IPHostEntry IpEntry = Dns.GetHostEntry(Dns.GetHostName());
            foreach (IPAddress ipa in IpEntry.AddressList)
            {
            if (ipa.AddressFamily == AddressFamily.InterNetwork)
            lstIPAddress.Add(ipa.ToString());
            }
            return lstIPAddress;
            }

            ///

            /// 取得遠端呼叫者ip
            ///

            ///
            public string GetClientIP()
            {
            string ClientIP = "";
            if (Request.ServerVariables["HTTP_VIA"] == null)
            {
            ClientIP = Request.ServerVariables["REMOTE_ADDR"].ToString();
            }
            else
            {
            ClientIP = Request.ServerVariables["HTTP_X_FORWARDED_FOR"].ToString();
            }
            ClientIP = ClientIP.Replace("::1", "127.0.0.1");
            return ClientIP;
            }

            ///

            /// 取得外網 IP Address
            ///

            ///
public static string GetExtranetIPAddress()
{
HttpWebRequest request = HttpWebRequest.Create("http://www.whatismyip.com.tw") as HttpWebRequest;
request.Method = "GET";
request.ContentType = "application/x-www-form-urlencoded";
request.UserAgent = "Mozilla/5.0";
string ip = string.Empty;
WebResponse response = request.GetResponse();
using (StreamReader reader = new StreamReader(response.GetResponseStream()))
{
string result = reader.ReadToEnd();
string pattern = @"\d{1,3}\.\d{1,3}\.\d{1,3}\.\d{1,3}";
ip = Regex.Match(result, pattern).ToString();
}
return ip;
}


            回覆

            1. 跑 GetExtranetIPAddress() 裡面的 WebResponse response = request.GetResponse(); 會出現 基礎連接已關閉: 連接意外關閉

            2. 太久沒連了，對方已經不支援這樣取了

               我提供另外取得對外ip的方法

               ///

               /// 取得外網 IP Address
               ///

               ///
               public static string GetExtranetIPAddress()
               {
               HttpWebRequest request = HttpWebRequest.Create(“http://ipinfo.io/ip”) as HttpWebRequest;
               request.Method = “GET”;
               request.ContentType = “application/x-www-form-urlencoded”;
               request.UserAgent = “Mozilla/5.0″;
               string ip = string.Empty;
               WebResponse response = request.GetResponse();
               using (StreamReader reader = new StreamReader(response.GetResponseStream()))
               {
               string result = reader.ReadToEnd();
               string pattern = @”\d{1,3}\.\d{1,3}\.\d{1,3}\.\d{1,3}”;
               ip = Regex.Match(result, pattern).ToString();
               }
               return ip;
               }