asp.net core 獲取 MacAddress 地址方法示例

來源：懂視網責編：小采時間：2020-11-27 22:34:37

asp.net core 獲取 MacAddress 地址方法示例

asp.net core 獲取 MacAddress 地址方法示例:本文告訴大家如何在 dotnet core 獲取 Mac 地址因為在 dotnetcore 是沒有直接和硬件相關的，所以無法通過 WMI 的方法獲取當前設備的 Mac 地址但是在 dotnet core 可以使用下面的代碼拿到本機所有的網卡地址，包括物理網卡和虛擬網卡 IPGlobalP

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導讀asp.net core 獲取 MacAddress 地址方法示例:本文告訴大家如何在 dotnet core 獲取 Mac 地址因為在 dotnetcore 是沒有直接和硬件相關的，所以無法通過 WMI 的方法獲取當前設備的 Mac 地址但是在 dotnet core 可以使用下面的代碼拿到本機所有的網卡地址，包括物理網卡和虛擬網卡 IPGlobalP

本文告訴大家如何在 dotnet core 獲取 Mac 地址

因為在 dotnetcore 是沒有直接和硬件相關的，所以無法通過 WMI 的方法獲取當前設備的 Mac 地址

但是在 dotnet core 可以使用下面的代碼拿到本機所有的網卡地址，包括物理網卡和虛擬網卡

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();
 }

運行代碼，下面是控制臺

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網卡，從堆棧網找到的方法獲取當前有活躍的 ip 的網卡可以通過先判斷是不是本地巡回網絡等，然后判斷有沒有網絡

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

獲取當前的網卡有沒 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))
 {
 // 這個才是需要的網卡
 }

簡單輸出網卡使用 adapter.GetPhysicalAddress().ToString() 輸出，如果需要輸出帶連接的請使用 GetAddressBytes 然后自己輸出

下面的代碼是我抽出來的，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()));
 }
 }
 }
 }

上面的方法不僅是在 dotnet core 可以使用，在 dotnet framework 程序同樣調用，但是在 dotnet framework 還可以通過 WMI 獲取

在 dotnet framework 使用 WMI 獲取 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();
 }
 }
 }

輸出的格式是 5A:15:31:73:B0:9F 同時輸出是一個網卡

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

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