C#获取本地计算机名,IP,MAC地址,硬盘ID

using System;
using System.Data;
using System.Configuration;
using System.Linq;
using System.Web;
using System.Web.Security;
using System.Web.UI;
using System.Web.UI.HtmlControls;
using System.Web.UI.WebControls;
using System.Web.UI.WebControls.WebParts;
using System.Xml.Linq;
using System.Management;

/// <summary>
///Computer 的摘要说明
/// </summary>
public class Computer

{

    public string CpuID;

    public string MacAddress;

    public string DiskID;

    public string IpAddress;

    public string LoginUserName;

    public string ComputerName;

    public string SystemType;

    public string TotalPhysicalMemory; //单位：M 
    private static Computer _instance;

    public static Computer Instance()

    {

        if (_instance == null)

            _instance = new Computer();

        return _instance;

    }

    public Computer()

    {

        CpuID = GetCpuID();

        MacAddress = GetMacAddress();

        DiskID = GetDiskID();

        IpAddress = GetIPAddress();

        LoginUserName = GetUserName();

        SystemType = GetSystemType();

        TotalPhysicalMemory = GetTotalPhysicalMemory();

        ComputerName = GetComputerName();

    }

    public string GetCpuID()

    {

        try

        {

            //获取CPU序列号代码 
            string cpuInfo = "";//cpu序列号 
            ManagementClass mc = new ManagementClass("Win32_Processor");

            ManagementObjectCollection moc = mc.GetInstances();

            foreach (ManagementObject mo in moc)

            {

                cpuInfo = mo.Properties["ProcessorId"].Value.ToString();

            }

            moc = null;

            mc = null;

            return cpuInfo;

        }

        catch

        {

            return "unknow";

        }

        finally

        {

        }

    }

    public string GetMacAddress()

    {

        try

        {

            //获取网卡硬件地址 
            string mac = "";

            ManagementClass mc = new ManagementClass("Win32_NetworkAdapterConfiguration");

            ManagementObjectCollection moc = mc.GetInstances();

            foreach (ManagementObject mo in moc)

            {

                if ((bool)mo["IPEnabled"] == true)

                {

                    mac = mo["MacAddress"].ToString();

                    break;

                }

            }

            moc = null;

            mc = null;

            return mac;

        }

        catch

        {

            return "unknow";

        }

        finally

        {

        }

    }

    public string GetIPAddress()

    {

        try

        {

            //获取IP地址 
            string st = "";

            ManagementClass mc = new ManagementClass("Win32_NetworkAdapterConfiguration");

            ManagementObjectCollection moc = mc.GetInstances();

            foreach (ManagementObject mo in moc)

            {

                if ((bool)mo["IPEnabled"] == true)

                {

                    //st=mo["IpAddress"].ToString(); 
                    System.Array ar;

                    ar = (System.Array)(mo.Properties["IpAddress"].Value);

                    st = ar.GetValue(0).ToString();

                    break;

                }

            }

            moc = null;

            mc = null;

            return st;

        }

        catch

        {

            return "unknow";

        }

        finally

        {

        }

    }

    public string GetDiskID()

    {

        try

        {

            //获取硬盘ID 
            String HDid = "";

            ManagementClass mc = new ManagementClass("Win32_DiskDrive");

            ManagementObjectCollection moc = mc.GetInstances();

            foreach (ManagementObject mo in moc)

            {

                HDid = (string)mo.Properties["Model"].Value;

            }

            moc = null;

            mc = null;

            return HDid;

        }

        catch

        {

            return "unknow";

        }

        finally

        {

        }

    }

    /// <summary> 

    /// 操作系统的登录用户名 

    /// </summary> 

    /// <returns></returns> 
    public string GetUserName()

    {

        try

        {

            string st = "";

            ManagementClass mc = new ManagementClass("Win32_ComputerSystem");

            ManagementObjectCollection moc = mc.GetInstances();

            foreach (ManagementObject mo in moc)

            {

                st = mo["UserName"].ToString();

            }

            moc = null;

            mc = null;

            return st;

        }

        catch

        {

            return "unknow";

        }

        finally

        {

        }

    }

    /// <summary> 

    /// PC类型 

    /// </summary> 

    /// <returns></returns> 
    public string GetSystemType()

    {

        try

        {

            string st = "";

            ManagementClass mc = new ManagementClass("Win32_ComputerSystem");

            ManagementObjectCollection moc = mc.GetInstances();

            foreach (ManagementObject mo in moc)

            {

                st = mo["SystemType"].ToString();

            }

            moc = null;

            mc = null;

            return st;

        }

        catch

        {

            return "unknow";

        }

        finally

        {

        }

    }

    /// <summary> 

    /// 物理内存 

    /// </summary> 

    /// <returns></returns> 
    public string GetTotalPhysicalMemory()

    {

        try

        {

            string st = "";

            ManagementClass mc = new ManagementClass("Win32_ComputerSystem");

            ManagementObjectCollection moc = mc.GetInstances();

            foreach (ManagementObject mo in moc)

            {

                st = mo["TotalPhysicalMemory"].ToString();

            }

            moc = null;

            mc = null;

            return st;

        }

        catch

        {

            return "unknow";

        }

        finally

        {

        }

    }

    /// <summary> 

    ///  

    /// </summary> 

    /// <returns></returns> 
    public string GetComputerName()

    {

        try

        {

            return System.Environment.GetEnvironmentVariable("ComputerName");

        }

        catch

        {

            return "unknow";

        }

        finally

        {

        }

    }

}