asp.net 获取机器硬件信息(cpu频率、磁盘可用空间、内存容量等

代码如下:
using System;
using System.Data;
using System.Configuration;
using System.Web;
using System.Web.Security;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Web.UI.WebControls.WebParts;
using System.Web.UI.HtmlControls;
using Microsoft.Win32;
using System.Text;
using System.Runtime.InteropServices;
using System.Management;//(添加对 System.Management.dll 的引用才能使用 System.Management 命名空间)
namespace EC
{
/// <summary>
/// 收集机器硬件信息的相关代码片断（cpu频率、磁盘可用空间、内存容量……）
/// </summary>
public class CpuInfoObject
{
public CpuInfoObject()
{
//
// TODO: 在此处添加构造函数逻辑
//
}
#region 获取CPU频率
/**************************************************
* 函数名称:GetCPUFrequency()
* 功能说明:获取CPU频率
* 参 数:
* 使用示列:
* Response.Write(EC.CpuInfoObject.GetCPUFrequency());
************************************************/
/// <summary>
/// 获取CPU频率
/// </summary>
/// <returns>整型cpu频率</returns>
public static int GetCPUFrequency()
{
RegistryKey rk = Registry.LocalMachine.OpenSubKey(@"HARDWARE/DESCRIPTION/System/CentralProcessor/0");
object obj = rk.GetValue("~MHz");
int CPUFrequency = (int)obj;
return CPUFrequency;
}
#endregion
#region 获取CPU名称
/**************************************************
* 函数名称:GetCPUName()
* 功能说明:获取CPU名称
* 参 数:
* 使用示列:
* Response.Write(EC.CpuInfoObject.GetCPUName());
************************************************/
/// <summary>
/// 获取CPU名称
/// </summary>
/// <returns>字符串型cpu名称</returns>
public static string GetCPUName()
{
RegistryKey rk = Registry.LocalMachine.OpenSubKey(@"HARDWARE/DESCRIPTION/System/CentralProcessor/0");
object obj = rk.GetValue("ProcessorNameString");
string CPUName = (string)obj;
return CPUName.TrimStart();
}
#endregion
#region 磁盘空间
/**************************************************
* 函数名称:GetFreeDiskSpace(string DiskName)
* 功能说明:获取磁盘空间
* 参 数:DiskName:磁盘名称 D:或E:
* 使用示列:
* Response.Write(EC.CpuInfoObject.GetFreeDiskSpace("D:"));
************************************************/
/// <summary>
/// 磁盘空间
/// </summary>
/// <param name="DiskName">硬盘名称:D:或E:</param>
/// <returns>整型</returns>
public static long GetFreeDiskSpace(string DiskName)
{
ManagementObject disk = new ManagementObject("win32_logicaldisk.deviceid=/"" + DiskName + "/"");
disk.Get();
string totalByte = disk["FreeSpace"].ToString();
long freeDiskSpaceMb = Convert.ToInt64(totalByte) / 1024 / 1024;