asp.net 常用于客户端注册的机器信息

项目需要：根据客户端信息去获取用户登录信息

1、根据客户端信息，并查询数据库是否有匹配。如果没有则重新插入客户端信息；

2、根据客户端的设置提交用户登录信息，用户登录成功后，查询以前是否有过配置信息，如果有这删除，保存最新信息；

   protected void Page_Load(object sender, EventArgs e)
        {
            Response.Write(GetMacAddress() + "<br />");         //C8:E7:D8:D5:E7:11
            Response.Write(GetVolumeSerialNumber() + "<br />"); //5064B9C7
            Response.Write(GetProcessorId() + "<br />");        //BFEBFBFF000306C3
            Response.Write(GetMachineSerialNumber());           //BFEBFBFF000306C35064B9C7
        }
        /// 获取网卡地址信息，如：C8:E7:D8:D5:E7:11 
        string GetMacAddress()
        {
            try
            {
                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 (Exception ex)
            {
                return ex.Message;
            }
        }
        /// 取得设备硬盘序列号(卷标号)，如：5064B9C7
        public string GetVolumeSerialNumber()
        {
            try
            {
                ManagementClass mc = new ManagementClass("Win32_NetworkAdapterConfiguration");
                ManagementObject disk = new ManagementObject("win32_logicaldisk.deviceid='c:'");
                disk.Get();
                return disk.GetPropertyValue("VolumeSerialNumber").ToString();
            }
            catch(Exception ex)
            {
                return ex.Message;
            }
        }

        /// 获得CPU的序列号，如：BFEBFBFF000306C3
        public string GetProcessorId()
        {
            try
            {
                string strCpu = null;
                ManagementClass myCpu = new ManagementClass("win32_Processor");
                ManagementObjectCollection myCpuConnection = myCpu.GetInstances();
                foreach (ManagementObject myObject in myCpuConnection)
                {
                    strCpu = myObject.Properties["Processorid"].Value.ToString();
                    break;
                }
                return strCpu;
            }
            catch (Exception ex)
            {
                return ex.Message;
            }
        }
        /// 生成机器序列号，机器码 = CPU的序列号 + 硬盘序列号
        public string GetMachineSerialNumber()
        {
            return string.Format("{0}{1}", GetProcessorId(), GetVolumeSerialNumber());
        }

关于 ManagementClass 类，需要添加using System.Management; 命名空间，和.net System.Management引用；