中如何获取本机MAC地址、IP地址、硬盘ID、CPU序列号等系统信息

我们在利用C#开发桌面程序（Winform）程序的时候，经常需要获取一些跟系统相关的信息，例如用户名、MAC地址、IP地址、硬盘ID、CPU序列号、系统名称、物理内存等。

using System.Management;  
/// 获取本机用户名、MAC地址、内网IP地址、公网IP地址、硬盘ID、CPU序列号、系统名称、物理内存。  
/// </summary>  
public class GetSystemInfo  
{  
    /// <summary>  
    /// 操作系统的登录用户名  
    /// </summary>  
    /// <returns>系统的登录用户名</returns>  
    public static string GetUserName()  
    {  
        try  
        {  
            string strUserName = string.Empty;  
            ManagementClass mc = new ManagementClass("Win32_ComputerSystem");  
            ManagementObjectCollection moc = mc.GetInstances();  
            foreach (ManagementObject mo in moc)  
            {  
                strUserName = mo["UserName"].ToString();  
            }  
            moc = null;  
            mc = null;  
            return strUserName;  
        }  
        catch  
        {  
            return "unknown";  
        }  
    }  
    /// <summary>  
    /// 获取本机MAC地址  
    /// </summary>  
    /// <returns>本机MAC地址</returns>  
    public static string GetMacAddress()  
    {  
        try  
        {  
            string strMac = string.Empty;  
            ManagementClass mc = new ManagementClass("Win32_NetworkAdapterConfiguration");  
            ManagementObjectCollection moc = mc.GetInstances();  
            foreach (ManagementObject mo in moc)  
            {  
                if ((bool)mo["IPEnabled"] == true)  
                {  
                    strMac = mo["MacAddress"].ToString();  
                }  
            }  
            moc = null;  
            mc = null;  
            return strMac;  
        }  
        catch  
        {  
            return "unknown";  
        }  
    }  
    /// <summary>  
    /// 获取本机的物理地址  
    /// </summary>  
    /// <returns></returns>  
    public static string getMacAddr_Local()  
    {  
        string madAddr = null;  
        try  
        {  
            ManagementClass mc = new ManagementClass("Win32_NetworkAdapterConfiguration");  
            ManagementObjectCollection moc2 = mc.GetInstances();  
            foreach (ManagementObject mo in moc2)  
            {  
                if (Convert.ToBoolean(mo["IPEnabled"]) == true)  
                {  
                    madAddr = mo["MacAddress"].ToString();  
                    madAddr = madAddr.Replace(':', '-');  
                }  
                mo.Dispose();  
            }  
            if (madAddr == null)  
            {  
                return "unknown";  
            }  
            else  
            {  
                return madAddr;  
            }  
        }  
        catch (Exception)  
        {  
            return "unknown";  
        }  
    }  
    /// <summary>  
    /// 获取客户端内网IPv6地址  
    /// </summary>  
    /// <returns>客户端内网IPv6地址</returns>  
    public static string GetClientLocalIPv6Address()  
    {  
        string strLocalIP = string.Empty;  
        try  
        {  
            IPHostEntry ipHost = Dns.GetHostEntry(Dns.GetHostName());  
            IPAddress ipAddress = ipHost.AddressList[0];  
            strLocalIP = ipAddress.ToString();  
            return strLocalIP;  
        }  
        catch  
        {  
            return "unknown";  
        }  
    }  
    /// <summary>  
    /// 获取客户端内网IPv4地址  
    /// </summary>  
    /// <returns>客户端内网IPv4地址</returns>  
    public static string GetClientLocalIPv4Address()  
    {  
        string strLocalIP = string.Empty;  
        try  
        {  
            IPHostEntry ipHost = Dns.Resolve(Dns.GetHostName());  
            IPAddress ipAddress = ipHost.AddressList[0];  
            strLocalIP = ipAddress.ToString();  
            return strLocalIP;  
        }  
        catch  
        {  
            return "unknown";  
        }  
    }  
    /// <summary>  
    /// 获取客户端内网IPv4地址集合  
    /// </summary>  
    /// <returns>返回客户端内网IPv4地址集合</returns>  
    public static List<string> GetClientLocalIPv4AddressList()  
    {  
        List<string> ipAddressList = new List<string>();  
        try  
        {  
            IPHostEntry ipHost = Dns.Resolve(Dns.GetHostName());  
            foreach (IPAddress ipAddress in ipHost.AddressList)  
            {  
                if (!ipAddressList.Contains(ipAddress.ToString()))  
                {  
                    ipAddressList.Add(ipAddress.ToString());  
                }  
            }  
        }  
        catch  
        {  
  
        }  
        return ipAddressList;  
    }  
  
    /// <summary>  
    /// 获取客户端外网IP地址  
    /// </summary>  
    /// <returns>客户端外网IP地址</returns>  
    public static string GetClientInternetIPAddress()  
    {  
        string strInternetIPAddress = string.Empty;  
        try  
        {  
            using (WebClient webClient = new WebClient())  
            {  
                strInternetIPAddress = webClient.DownloadString("http://www.coridc.com/ip");  
                Regex r = new Regex("[0-9]{1,3}\\.[0-9]{1,3}\\.[0-9]{1,3}\\.[0-9]{1,3}");  
                Match mth = r.Match(strInternetIPAddress);  
                if (!mth.Success)  
                {  
                    strInternetIPAddress = GetClientInternetIPAddress2();  
                    mth = r.Match(strInternetIPAddress);  
                    if (!mth.Success)  
                    {  
                        strInternetIPAddress = "unknown";  
                    }  
                }  
                return strInternetIPAddress;  
            }  
        }  
        catch  
        {  
            return "unknown";  
        }  
    }  
    /// <summary>  
    /// 获取本机公网IP地址  
    /// </summary>  
    /// <returns>本机公网IP地址</returns>  
    private static string GetClientInternetIPAddress2()  
    {  
        string tempip = "";  
        try  
        {  
            //http://iframe.ip138.com/ic.asp 返回的是：您的IP是：[220.231.17.99] 来自：北京市 光环新网  
            WebRequest wr = WebRequest.Create("http://iframe.ip138.com/ic.asp");  
            Stream s = wr.GetResponse().GetResponseStream();  
            StreamReader sr = new StreamReader(s, Encoding.Default);  
            string all = sr.ReadToEnd(); //读取网站的数据  
  
            int start = all.IndexOf("[") + 1;  
            int end = all.IndexOf("]", start);  
            tempip = all.Substring(start, end - start);  
            sr.Close();  
            s.Close();  
            return tempip;  
        }  
        catch  
        {  
            return "unknown";  
        }  
    }  
    /// <summary>  
    /// 获取硬盘序号  
    /// </summary>  
    /// <returns>硬盘序号</returns>  
    public static string GetDiskID()  
    {  
        try  
        {  
            string strDiskID = string.Empty;  
            ManagementClass mc = new ManagementClass("Win32_DiskDrive");  
            ManagementObjectCollection moc = mc.GetInstances();  
            foreach (ManagementObject mo in moc)  
            {  
                strDiskID = mo.Properties["Model"].Value.ToString();  
            }  
            moc = null;  
            mc = null;  
            return strDiskID;  
        }  
        catch  
        {  
            return "unknown";  
        }  
    }  
    /// <summary>  
    /// 获取CpuID  
    /// </summary>  
    /// <returns>CpuID</returns>  
    public static string GetCpuID()  
    {  
        try  
        {  
            string strCpuID = string.Empty;  
            ManagementClass mc = new ManagementClass("Win32_Processor");  
            ManagementObjectCollection moc = mc.GetInstances();  
            foreach (ManagementObject mo in moc)  
            {  
                strCpuID = mo.Properties["ProcessorId"].Value.ToString();  
            }  
            moc = null;  
            mc = null;  
            return strCpuID;  
        }  
        catch  
        {  
            return "unknown";  
        }  
    }  
    /// <summary>  
    /// 获取操作系统类型  
    /// </summary>  
    /// <returns>操作系统类型</returns>  
    public static string GetSystemType()  
    {  
        try  
        {  
            string strSystemType = string.Empty;  
            ManagementClass mc = new ManagementClass("Win32_ComputerSystem");  
            ManagementObjectCollection moc = mc.GetInstances();  
            foreach (ManagementObject mo in moc)  
            {  
                strSystemType = mo["SystemType"].ToString();  
            }  
            moc = null;  
            mc = null;  
            return strSystemType;  
        }  
        catch  
        {  
            return "unknown";  
        }  
    }  
    /// <summary>  
    /// 获取操作系统名称  
    /// </summary>  
    /// <returns>操作系统名称</returns>  
    public static string GetSystemName()  
    {  
        try  
        {  
            string strSystemName = string.Empty;  
            ManagementObjectSearcher mos = new ManagementObjectSearcher("root\\CIMV2", "SELECT PartComponent FROM Win32_SystemOperatingSystem");  
            foreach (ManagementObject mo in mos.Get())  
            {  
                strSystemName = mo["PartComponent"].ToString();  
            }  
            mos = new ManagementObjectSearcher("root\\CIMV2", "SELECT Caption FROM Win32_OperatingSystem");  
            foreach (ManagementObject mo in mos.Get())  
            {  
                strSystemName = mo["Caption"].ToString();  
            }  
            return strSystemName;  
        }  
        catch  
        {  
            return "unknown";  
        }  
    }  
    /// <summary>  
    /// 获取物理内存信息  
    /// </summary>  
    /// <returns>物理内存信息</returns>  
    public static string GetTotalPhysicalMemory()  
    {  
        try  
        {  
            string strTotalPhysicalMemory = string.Empty;  
            ManagementClass mc = new ManagementClass("Win32_ComputerSystem");  
            ManagementObjectCollection moc = mc.GetInstances();  
            foreach (ManagementObject mo in moc)  
            {  
                strTotalPhysicalMemory = mo["TotalPhysicalMemory"].ToString();  
            }  
            moc = null;  
            mc = null;  
            return strTotalPhysicalMemory;  
        }  
        catch  
        {  
            return "unknown";  
        }  
    }  
  
    /// <summary>  
    /// 获取主板id  
    /// </summary>  
    /// <returns></returns>  
    public static string GetMotherBoardID()  
    {  
        try  
        {  
            ManagementClass mc = new ManagementClass("Win32_BaseBoard");  
            ManagementObjectCollection moc = mc.GetInstances();  
            string strID = null;  
            foreach (ManagementObject mo in moc)  
            {  
                strID = mo.Properties["SerialNumber"].Value.ToString();  
                break;  
            }  
            return strID;  
        }  
        catch  
        {  
            return "unknown";  
        }  
    }  
  
    /// <summary>  
    /// 获取公用桌面路径           
public static string GetAllUsersDesktopFolderPath()  
{  
    RegistryKey folders;  
    folders = OpenRegistryPath(Registry.LocalMachine, @"/software/microsoft/windows/currentversion/explorer/shell folders");  
    string desktopPath = folders.GetValue("Common Desktop").ToString();  
    return desktopPath;  
}  
/// <summary>  
/// 获取公用启动项路径  
/// </summary>  
public static string GetAllUsersStartupFolderPath()  
{  
    RegistryKey folders;  
    folders = OpenRegistryPath(Registry.LocalMachine, @"/software/microsoft/windows/currentversion/explorer/shell folders");  
    string Startup = folders.GetValue("Common Startup").ToString();  
    return Startup;  
}  
private static RegistryKey OpenRegistryPath(RegistryKey root, string s)  
{  
    s = s.Remove(0, 1) + @"/";  
    while (s.IndexOf(@"/") != -1)  
    {  
        root = root.OpenSubKey(s.Substring(0, s.IndexOf(@"/")));  
        s = s.Remove(0, s.IndexOf(@"/") + 1);  
    }  
    return root;  
}  
private void Test()  
 {  
     RegistryKey folders;  
     folders = OpenRegistryPath(Registry.LocalMachine, @"/software/microsoft/windows/currentversion/explorer/shell folders");  
     // Windows用户桌面路径  
     string desktopPath = folders.GetValue("Common Desktop").ToString();  
     // Windows用户字体目录路径  
     string fontsPath = folders.GetValue("Fonts").ToString();  
     // Windows用户网络邻居路径  
     string nethoodPath = folders.GetValue("Nethood").ToString();  
     // Windows用户我的文档路径  
     string personalPath = folders.GetValue("Personal").ToString();  
     // Windows用户开始菜单程序路径  
     string programsPath = folders.GetValue("Programs").ToString();  
     // Windows用户存放用户最近访问文档快捷方式的目录路径  
     string recentPath = folders.GetValue("Recent").ToString();  
     // Windows用户发送到目录路径  
     string sendtoPath = folders.GetValue("Sendto").ToString();  
     // Windows用户开始菜单目录路径  
     string startmenuPath = folders.GetValue("Startmenu").ToString();  
     // Windows用户开始菜单启动项目录路径  
     string startupPath = folders.GetValue("Startup").ToString();  
     // Windows用户收藏夹目录路径  
     string favoritesPath = folders.GetValue("Favorites").ToString();  
     // Windows用户网页历史目录路径  
     string historyPath = folders.GetValue("History").ToString();  
     // Windows用户Cookies目录路径  
     string cookiesPath = folders.GetValue("Cookies").ToString();  
     // Windows用户Cache目录路径  
     string cachePath = folders.GetValue("Cache").ToString();  
     // Windows用户应用程式数据目录路径  
     string appdataPath = folders.GetValue("Appdata").ToString();  
     // Windows用户打印目录路径  
     string printhoodPath = folders.GetValue("Printhood").ToString();  
 }</span>