asp.net core 获取 MacAddress 地址方法示例

来源：懂视网责编：小采时间：2020-11-27 22:34:37

asp.net core 获取 MacAddress 地址方法示例

asp.net core 获取 MacAddress 地址方法示例:本文告诉大家如何在 dotnet core 获取 Mac 地址因为在 dotnetcore 是没有直接和硬件相关的，所以无法通过 WMI 的方法获取当前设备的 Mac 地址但是在 dotnet core 可以使用下面的代码拿到本机所有的网卡地址，包括物理网卡和虚拟网卡 IPGlobalP

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导读asp.net core 获取 MacAddress 地址方法示例:本文告诉大家如何在 dotnet core 获取 Mac 地址因为在 dotnetcore 是没有直接和硬件相关的，所以无法通过 WMI 的方法获取当前设备的 Mac 地址但是在 dotnet core 可以使用下面的代码拿到本机所有的网卡地址，包括物理网卡和虚拟网卡 IPGlobalP

本文告诉大家如何在 dotnet core 获取 Mac 地址

因为在 dotnetcore 是没有直接和硬件相关的，所以无法通过 WMI 的方法获取当前设备的 Mac 地址

但是在 dotnet core 可以使用下面的代码拿到本机所有的网卡地址，包括物理网卡和虚拟网卡

IPGlobalProperties computerProperties = IPGlobalProperties.GetIPGlobalProperties();
 NetworkInterface[] nics = NetworkInterface.GetAllNetworkInterfaces();

 Console.WriteLine("Interface information for {0}.{1} ",
 computerProperties.HostName, computerProperties.DomainName);
 if (nics == null || nics.Length < 1)
 {
 Console.WriteLine(" No network interfaces found.");
 return;
 }

 Console.WriteLine(" Number of interfaces .................... : {0}", nics.Length);
 foreach (NetworkInterface adapter in nics)
 {
 Console.WriteLine();
 Console.WriteLine(adapter.Name + "," + adapter.Description);
 Console.WriteLine(String.Empty.PadLeft(adapter.Description.Length, '='));
 Console.WriteLine(" Interface type .......................... : {0}", adapter.NetworkInterfaceType);
 Console.Write(" Physical address ........................ : ");
 PhysicalAddress address = adapter.GetPhysicalAddress();
 byte[] bytes = address.GetAddressBytes();
 for (int i = 0; i < bytes.Length; i++)
 {
 // Display the physical address in hexadecimal.
 Console.Write("{0}", bytes[i].ToString("X2"));
 // Insert a hyphen after each byte, unless we are at the end of the 
 // address.
 if (i != bytes.Length - 1)
 {
 Console.Write("-");
 }
 }

 Console.WriteLine();
 }

运行代码，下面是控制台

Interface information for lindexi.github
 Number of interfaces .................... : 6

 Hyper-V Virtual Ethernet Adapter #4
 ===================================
 Interface type .......................... : Ethernet
 Physical address ........................ : 00-15-5D-96-39-03

 Hyper-V Virtual Ethernet Adapter #3
 ===================================
 Interface type .......................... : Ethernet
 Physical address ........................ : 1C-1B-0D-3C-47-91

 Software Loopback Interface 1
 =============================
 Interface type .......................... : Loopback
 Physical address ........................ :

 Microsoft Teredo Tunneling Adapter
 ==================================
 Interface type .......................... : Tunnel
 Physical address ........................ : 00-00-00-00-00-00-00-E0

 Hyper-V Virtual Ethernet Adapter
 ================================
 Interface type .......................... : Ethernet
 Physical address ........................ : 5A-15-31-73-B0-9F

 Hyper-V Virtual Ethernet Adapter #2
 ===================================
 Interface type .......................... : Ethernet
 Physical address ........................ : 5A-15-31-08-13-B1

但是可以看到里面有很多不需要使用的网卡，从堆栈网找到的方法获取当前有活跃的 ip 的网卡可以通过先判断是不是本地巡回网络等，然后判断有没有网络

foreach (NetworkInterface adapter in nics.Where(c =>
 c.NetworkInterfaceType != NetworkInterfaceType.Loopback && c.OperationalStatus == OperationalStatus.Up))

获取当前的网卡有没 ip 有 ip 才是需要的

IPInterfaceProperties properties = adapter.GetIPProperties();

 var unicastAddresses = properties.UnicastAddresses;
 foreach (var temp in unicastAddresses.Where(temp =>
 temp.Address.AddressFamily == AddressFamily.InterNetwork))
 {
 // 这个才是需要的网卡
 }

简单输出网卡使用 adapter.GetPhysicalAddress().ToString() 输出，如果需要输出带连接的请使用 GetAddressBytes 然后自己输出

下面的代码是我抽出来的，可以直接使用

public static void GetActiveMacAddress(string separator = "-")
 {
 NetworkInterface[] nics = NetworkInterface.GetAllNetworkInterfaces();

 //Debug.WriteLine("Interface information for {0}.{1} ",
 // computerProperties.HostName, computerProperties.DomainName);
 if (nics == null || nics.Length < 1)
 {
 Debug.WriteLine(" No network interfaces found.");
 return;
 }

 var macAddress = new List<string>();

 //Debug.WriteLine(" Number of interfaces .................... : {0}", nics.Length);
 foreach (NetworkInterface adapter in nics.Where(c =>
 c.NetworkInterfaceType != NetworkInterfaceType.Loopback && c.OperationalStatus == OperationalStatus.Up))
 {
 //Debug.WriteLine("");
 //Debug.WriteLine(adapter.Name + "," + adapter.Description);
 //Debug.WriteLine(string.Empty.PadLeft(adapter.Description.Length, '='));
 //Debug.WriteLine(" Interface type .......................... : {0}", adapter.NetworkInterfaceType);
 //Debug.Write(" Physical address ........................ : ");
 //PhysicalAddress address = adapter.GetPhysicalAddress();
 //byte[] bytes = address.GetAddressBytes();
 //for (int i = 0; i < bytes.Length; i++)
 //{
 // // Display the physical address in hexadecimal.
 // Debug.Write($"{bytes[i]:X2}");
 // // Insert a hyphen after each byte, unless we are at the end of the 
 // // address.
 // if (i != bytes.Length - 1)
 // {
 // Debug.Write("-");
 // }
 //}

 //Debug.WriteLine("");

 //Debug.WriteLine(address.ToString());

 IPInterfaceProperties properties = adapter.GetIPProperties();

 var unicastAddresses = properties.UnicastAddresses;
 if (unicastAddresses.Any(temp => temp.Address.AddressFamily == AddressFamily.InterNetwork))
 {
 var address = adapter.GetPhysicalAddress();
 if (string.IsNullOrEmpty(separator))
 {
 macAddress.Add(address.ToString());
 }
 else
 {
 macAddress.Add(string.Join(separator, address.GetAddressBytes()));
 }
 }
 }
 }

上面的方法不仅是在 dotnet core 可以使用，在 dotnet framework 程序同样调用，但是在 dotnet framework 还可以通过 WMI 获取

在 dotnet framework 使用 WMI 获取 MAC 地址方法

var managementClass = new ManagementClass("Win32_NetworkAdapterConfiguration");
 var managementObjectCollection = managementClass.GetInstances();
 foreach (var managementObject in managementObjectCollection.OfType<ManagementObject>())
 {
 using (managementObject)
 {
 if ((bool) managementObject["IPEnabled"])
 {
 if (managementObject["MacAddress"] == null)
 {
 return string.Empty;
 }

 return managementObject["MacAddress"].ToString().ToUpper();
 }
 }
 }

输出的格式是 5A:15:31:73:B0:9F 同时输出是一个网卡

NetworkInterface.GetPhysicalAddress Method (System.Net.NetworkInformation)

PhysicalAddress Class (System.Net.NetworkInformation)

c# - .NET Core 2.x how to get the current active local network IPv4 address? - Stack Overflow