asp.net 获取服务器的硬盘id 网卡mac地址 cpu序列号

private void GetInfo()
{
string cpuInfo = "";//cpu序列号
ManagementClass cimobject = new ManagementClass("Win32_Processor");
ManagementObjectCollection moc = cimobject.GetInstances();
foreach (ManagementObject mo in moc)
{
cpuInfo = mo.Properties["ProcessorId"].Value.ToString();
Response.Write("cpu序列号：" + cpuInfo.ToString());
}

//获取硬盘ID
String HDid;
ManagementClass cimobject1 = new ManagementClass("Win32_DiskDrive");
ManagementObjectCollection moc1 = cimobject1.GetInstances();
foreach (ManagementObject mo in moc1)
{
HDid = (string)mo.Properties["Model"].Value;
Response.Write("硬盘序列号：" + HDid.ToString());
}
//获取网卡硬件地址
ManagementClass mc = new ManagementClass("Win32_NetworkAdapterConfiguration");
ManagementObjectCollection moc2 = mc.GetInstances();
foreach (ManagementObject mo in moc2)
{
if ((bool)mo["IPEnabled"] == true)
Response.Write("MAC address\t{0}" + mo["MacAddress"].ToString());
mo.Dispose();
}
}