我正在运行一个服务器，我想显示我自己的IP地址。
获取计算机自身(如果可能的话，外部)IP地址的语法是什么?
有人编写了以下代码。
IPHostEntry host;
string localIP = "?";
host = Dns.GetHostEntry(Dns.GetHostName());
foreach (IPAddress ip in host.AddressList)
{
if (ip.AddressFamily.ToString() == "InterNetwork")
{
localIP = ip.ToString();
}
}
return localIP;
然而，我通常不信任作者，我不理解这段代码。有更好的方法吗?
当前回答
如果你在内部网络中运行，你将能够获得本地机器的IP地址，如果不是，你将获得外部IP地址: 网络:
//this will bring the IP for the current machine on browser
System.Web.HttpContext.Current.Request.UserHostAddress
桌面:
//This one will bring all local IPs for the desired namespace
IPAddress[] localIPs = Dns.GetHostAddresses(Dns.GetHostName());
其他回答
清洁和一体解决方案:D
//This returns the first IP4 address or null
return Dns.GetHostEntry(Dns.GetHostName()).AddressList.FirstOrDefault(ip => ip.AddressFamily == AddressFamily.InterNetwork);
了解你的公共IP的唯一方法是让别人告诉你;这段代码可以帮助你:
public string GetPublicIP()
{
String direction = "";
WebRequest request = WebRequest.Create("http://checkip.dyndns.org/");
using (WebResponse response = request.GetResponse())
using (StreamReader stream = new StreamReader(response.GetResponseStream()))
{
direction = stream.ReadToEnd();
}
//Search for the ip in the html
int first = direction.IndexOf("Address: ") + 9;
int last = direction.LastIndexOf("</body>");
direction = direction.Substring(first, last - first);
return direction;
}
如果你在内部网络中运行，你将能够获得本地机器的IP地址，如果不是，你将获得外部IP地址: 网络:
//this will bring the IP for the current machine on browser
System.Web.HttpContext.Current.Request.UserHostAddress
桌面:
//This one will bring all local IPs for the desired namespace
IPAddress[] localIPs = Dns.GetHostAddresses(Dns.GetHostName());
试试这个:
IPAddress[] localIPs = Dns.GetHostAddresses(Dns.GetHostName());
String MyIp = localIPs[0].ToString();
这是在VB中获取所有本地ip的csv格式。网
Imports System.Net
Imports System.Net.Sockets
Function GetIPAddress() As String
Dim ipList As List(Of String) = New List(Of String)
Dim host As IPHostEntry
Dim localIP As String = "?"
host = Dns.GetHostEntry(Dns.GetHostName())
For Each ip As IPAddress In host.AddressList
If ip.AddressFamily = AddressFamily.InterNetwork Then
localIP = ip.ToString()
ipList.Add(localIP)
End If
Next
Dim ret As String = String.Join(",", ipList.ToArray)
Return ret
End Function
