Specific introduction to C # programming method of obtaining IP address

This article mainly introduces c#http://www.php.cn/wiki/44.html "target=" _blank "> Programming method of acquiring IP address, combined with instance form to analyze C # to obtain the client IP address of the specific implementation techniques, A friend you need can refer to the following

The example in this article describes how C # programming obtains an IP address. Share to everyone for your reference, as follows:

1. Get Client IP

<summary>///get client ip///</summary>///<returns></returns>public String GetClientIp () {  String clientip = "";  if (System.Web.HttpContext.Current! = null)  {    ClientIP = system.web.httpcontext.current.request.servervariables["Http_x_forwarded_for"];    if (string. IsNullOrEmpty (clientip) | | (Clientip.tolower () = = "Unknown"))    {      ClientIP = system.web.httpcontext.current.request.servervariables["Http_x_real_ip"];      if (string. IsNullOrEmpty (ClientIP))      {        ClientIP = system.web.httpcontext.current.request.servervariables["REMOTE_ ADDR "];      }    }    else    {      ClientIP = clientip.split (', ') [0];    }  }  return clientip;}

2. Server-side Get client request IP and client machine name

///<summary>///server-side Get client request IP and client machine name///</summary>public static void  Getclientinfo () {OperationContext context = operationcontext.current; Messageproperties messageproperties = context.  Incomingmessageproperties; Remoteendpointmessageproperty Endpointproperty = Messageproperties[remoteendpointmessageproperty.name] As  Remoteendpointmessageproperty; HttpRequestMessageProperty Requestproperty = Messageproperties[httprequestmessageproperty.name] As  HttpRequestMessageProperty; String clientip =!string. IsNullOrEmpty (requestproperty.headers["X-real-ip"])?  requestproperty.headers["X-real-ip"]: endpointproperty.address;  string clientName = Environment.MachineName; Console.WriteLine ("ClientIP:" + ClientIP + "ClientName:" + clientName);}