C#读取本地网络配置信息的方法小结

using System;
using System.Windows;
using System.Net.NetworkInformation;
class Program
{
    static void Main()
    {        
        StringBuilder sb = new StringBuilder();
        sb.AppendLine($"本地网络接口信息:");// 获取并遍历所有网络接口
        foreach (NetworkInterface ni in NetworkInterface.GetAllNetworkInterfaces())
        {
            sb.AppendLine($"名称: {ni.Name}");
            sb.AppendLine($"描述: {ni.Description}");
            sb.AppendLine($"状态: {ni.OperationalStatus}");
            sb.AppendLine($"MAC 地址: {ni.GetPhysicalAddress()}");
            sb.AppendLine("=======================================");
        }
        MessageBox.Show(sb.ToString());
     }
}

using System;
using System.Linq;
using System.Windows;
using System.Net.NetworkInformation;
using System.Net.Sockets;
class Program
{
    static void Main()
    {        
        // 指定要检索的网络接口名称        
        string interfaceName = "Wi-Fi";
        
        var networkInterface = NetworkInterface.GetAllNetworkInterfaces().FirstOrDefault(ni => ni.Name == interfaceName);
        string message = "";
        
        if (networkInterface != null) {
            message += $"网络接口: {networkInterface.Name}\n";
            var ipProperties = networkInterface.GetIPProperties();
            
            // 获取IPv4配置信息
            var ipv4Properties = ipProperties.UnicastAddresses.FirstOrDefault(ua => ua.Address.AddressFamily == AddressFamily.InterNetwork);
            if (ipv4Properties != null) {
                message += $"IP 地址: {ipv4Properties.Address}\n";
                message += $"子网掩码: {ipv4Properties.IPv4Mask}\n";
            }
            
            // 获取默认网关
            var gatewayAddress = ipProperties.GatewayAddresses.FirstOrDefault(ga => ga.Address.AddressFamily == AddressFamily.InterNetwork);
            if (gatewayAddress != null) {
                message += $"默认网关: {gatewayAddress.Address}\n";
            }
        } else {
            message = "指定的网络接口未找到。";
        }
        MessageBox.Show(message);
     }
}

using System;
using System.Net.NetworkInformation;
using System.Linq;
using System.Windows;
class Program
{
    static void Main()
    {
        // 选择一个活动的网络接口
        var activeInterface = NetworkInterface.GetAllNetworkInterfaces().FirstOrDefault(ni => ni.OperationalStatus == OperationalStatus.Up);

        string message = "";
        if (activeInterface != null) {
            message += $"网络接口: {activeInterface.Name}\n";
            var ipProperties = activeInterface.GetIPProperties();
        
            // 获取DNS服务器地址
            var dnsAddresses = ipProperties.DnsAddresses;
            foreach (var dns in dnsAddresses) {
                message += $"DNS服务器地址: {dns}\n";
            }
        } else {
            message = "未找到活动的网络接口。";
        }
        MessageBox.Show(message, "网络信息", MessageBoxButton.OK, MessageBoxImage.Information);
    }
}