服务器性能监控之WMI[转]

1.WMI简介
WMI是英文Windows Management Instrumentation的简写，通过使用WMI，我们可以获取本地或远程服务器的性能参数和进程运行情况，以及大部分硬件信息，但前提是运行的用 户要有足够的权限，如administrator组用户等。这也是做负载均衡所需要且比较方便快捷的途径。

2.使用时首先添加System.Management.dll，然后引用

using System.Management;

3.定义远程访问 

4.获取CPU，内存，网络流量等信息

public class Monitor
    {
private string username = "";
private string pwd ="";
private string ip = "";
        ManagementConnectPool mcp;
        WMSServerClass server;


   public Monitor(string username,string pwd,string ip)...{
this.username = username;
this.pwd = pwd ;
this.ip = ip;
            mcp = new ManagementConnectPool(username,pwd,"\root\cimv2",ip);
            server = new WMSServerClass();
        }

   WMI方式获取网卡流量#region WMI方式获取网卡流量
private void getNetWorkFlow()
     {
            ManagementObjectCollection moc = mcp.getQueryResult(@"select * from Win32_NetworkAdapter where macaddress<>null and manufacturer<>'Microsoft'");
string[] list = new string[moc.Count] ;
foreach(System.Management.ManagementObject mymac in moc)
    {
string a =  mymac["Speed"].ToString();//null WMI未实现该属性
                Console.WriteLine(a.ToString());
            }
        }


   WMI方式获取CPU信息#region WMI方式获取CPU信息
private void getCpuInfo()

    {
            ManagementObjectCollection moc = mcp.getQueryResult("select * from Win32_Processor");
string[] list = new string[moc.Count];
int i = 0;
foreach(ManagementObject mo  in moc)
   {   
string total = mo.GetPropertyValue("LoadPercentage").ToString();
                list[i]=total;
                i++;
            }
        }
#endregion

   WMI方式获取内存使用率#region WMI方式获取内存使用率
public string getMemoryUsage()
    {
            ManagementObjectCollection moc = mcp.getQueryResult("select * from Win32_LogicalMemoryConfiguration");
int totalm = 1; int avilablem = 1;
foreach(ManagementObject mo  in moc)
    {
string total = mo.GetPropertyValue("TotalPhysicalMemory").ToString();
                totalm = int.Parse(total);
            }
            moc = mcp.getQueryResult("select * from Win32_PerfRawData_PerfOS_Memory");
foreach(ManagementObject mo  in moc)
    {
string avilable = mo.GetPropertyValue("AvailableKBytes").ToString();
                avilablem = int.Parse(avilable);
            }
int usedm = totalm - avilablem;
double memoryusage = (double)usedm * (double)100 / (double)totalm ;
return memoryusage.ToString();
        }

}

5.获取本地机器信息（WEB）

1.如何用WMI获得指定磁盘的容量#region 1.如何用WMI获得指定磁盘的容量
private string DriveType(string type)
    {
string rtntype="";
switch (type)
   {
case "1":
                     rtntype="Not Type";
break;
case "2":
                     rtntype="Floppy disk";
break;
case "3":
                     rtntype="Hard disk";
break;
case "4":
                     rtntype="Removable drive or network drive";
break;
case "5":
                     rtntype="CD-ROM";
break;
case "6":
                     rtntype="RAM disk";
break;
default :
break;
             }
return rtntype;
         }

private void Button1_Click(object sender, System.EventArgs e)
     {
             SelectQuery query=new SelectQuery("Select * From Win32_LogicalDisk");
             ManagementObjectSearcher searcher=new ManagementObjectSearcher(query);
foreach(ManagementBaseObject disk in searcher.Get())
    {
                 Response.Write(disk["Name"] +" "+DriveType(disk["DriveType"].ToString()) + " " + disk["VolumeName"]+"<br>");
             }
         }


 2.如何用WMI获得指定磁盘的容量#region 2.如何用WMI获得指定磁盘的容量
private void Button2_Click(object sender, System.EventArgs e)
      {
             ManagementObject disk = new ManagementObject("win32_logicaldisk.deviceid="c:"");
             disk.Get();
             Response.Write("Logical Disk Size = " + disk["Size"] + " bytes");            
         }


 3.如何列出机器中所有的共享资源#region 3.如何列出机器中所有的共享资源
private void Button3_Click(object sender, System.EventArgs e)
        {
             ManagementObjectSearcher searcher = new ManagementObjectSearcher("SELECT * FROM Win32_share");
foreach (ManagementObject share in searcher.Get())
        {
                 Response.Write(share.GetText(TextFormat.Mof));
             }
         }


 4.怎样写程控制让系统中的某个文件夹共享或取消共享#region 4.怎样写程控制让系统中的某个文件夹共享或取消共享
private void Button4_Click(object sender, System.EventArgs e)
        {
   /**//*首先，这需要以有相应权限的用户登录系统才行
             将
             object[] obj = {"C:\Temp","我的共享",0,10,"Dot Net 实现的共享",""};
             改为
             object[] obj = {"C:\Temp","我的共享",0,null,"Dot Net 实现的共享",""};
             就可以实现授权给最多用户了。
*/
             ManagementClass _class = new ManagementClass(new ManagementPath("Win32_Share"));
     object[] obj = ...{"C:\Temp","我的共享",0,10,"Dot Net 实现的共享",""};
             _class.InvokeMethod("create",obj);
         }


  5.如何获得系统服务的运行状态#region 5.如何获得系统服务的运行状态
private void Button5_Click(object sender, System.EventArgs e)
         {
string[] lvData = new string[4];           
             ManagementObjectSearcher searcher =new ManagementObjectSearcher("SELECT * FROM Win32_Service");
foreach (ManagementObject mo in searcher.Get())
       {
                 lvData[0] = mo["Name"].ToString();
                 lvData[1] = mo["StartMode"].ToString();
if (mo["Started"].Equals(true))
                     lvData[2] = "Started";
else
                     lvData[2] = "Stop";
                 lvData[3] = mo["StartName"].ToString();
                 Response.Write(lvData[0]+lvData[1]+lvData[2]+lvData[3]);                   
             }
         }


 6.通过WMI修改IP，而实现不用重新启动#region 6.通过WMI修改IP，而实现不用重新启动
private void Button6_Click(object sender, System.EventArgs e)
       {
             ReportIP();
// SwitchToDHCP();
             SwitchToprivate();
             Thread.Sleep( 5000 );
             ReportIP();
             Response.Write( "end." );
         }

private void SwitchToDHCP()
        {
             ManagementBaseObject inPar = null;
             ManagementBaseObject outPar = null;
             ManagementClass mc = new ManagementClass("Win32_NetworkAdapterConfiguration");
             ManagementObjectCollection moc = mc.GetInstances();
foreach( ManagementObject mo in moc )
        {
if( ! (bool) mo["IPEnabled"] )
continue;

                 inPar = mo.GetMethodParameters("EnableDHCP");
                 outPar = mo.InvokeMethod( "EnableDHCP", inPar, null );
break;
             }
         }

private void SwitchToprivate()
      {
             ManagementBaseObject inPar = null;
             ManagementBaseObject outPar = null;
             ManagementClass mc = new ManagementClass("Win32_NetworkAdapterConfiguration");
             ManagementObjectCollection moc = mc.GetInstances();
foreach( ManagementObject mo in moc )
      {
if( ! (bool) mo[ "IPEnabled" ] )
continue;

                 inPar = mo.GetMethodParameters( "Enableprivate" );
                   inPar["IPAddress"] = new string[] ...{ "192.168.1.1" };
                   inPar["SubnetMask"] = new string[] ...{ "255.255.255.0" };
                 outPar = mo.InvokeMethod( "Enableprivate", inPar, null );
break;
             }
         }

private void ReportIP()
       {
             Response.Write( "****** Current IP addresses:" );
             ManagementClass mc = new ManagementClass("Win32_NetworkAdapterConfiguration");
             ManagementObjectCollection moc = mc.GetInstances();
foreach( ManagementObject mo in moc )
      {
if( ! (bool) mo[ "IPEnabled" ] )
continue;

string str="{0}  SVC: '{1}' MAC: [{2}]";
                 str= string.Format(mo["Caption"].ToString(), mo["ServiceName"].ToString(),mo["MACAddress"].ToString());

                 Response.Write(str);

string[] addresses = (string[]) mo[ "IPAddress" ];
string[] subnets = (string[]) mo[ "IPSubnet" ];

                 Response.Write( " Addresses :" );
foreach(string sad in addresses)
                     Response.Write(sad+"<br>");

                 Response.Write( " Subnets :" );
foreach(string sub in subnets )
                     Response.Write(sub+"<br>");
             }
         }


  7.如何利用WMI远程重启远程计算机#region 7.如何利用WMI远程重启远程计算机
private void Button7_Click(object sender, System.EventArgs e)
      {
             Response.Write("Computer details retrieved using Windows Management Instrumentation (WMI)");
             Response.Write("mailto:singlepine@hotmail.com");
             Response.Write("========================================================================="); 
//连接远程计算机
             ConnectionOptions co = new ConnectionOptions();
             co.Username = "john";
             co.Password = "john";
             System.Management.ManagementScope ms = new System.Management.ManagementScope("\\192.168.1.2\root\cimv2", co);      
//查询远程计算机
             System.Management.ObjectQuery oq = new System.Management.ObjectQuery("SELECT * FROM Win32_OperatingSystem");

             ManagementObjectSearcher query1 = new ManagementObjectSearcher(ms,oq);
             ManagementObjectCollection queryCollection1 = query1.Get();            
foreach( ManagementObject mo in queryCollection1 ) 
       {
    string[] ss=...{""};
                 mo.InvokeMethod("Reboot",ss);
                 Response.Write(mo.ToString());
             }
         }


 8.利用WMI创建一个新的进程#region 8.利用WMI创建一个新的进程
private void Button8_Click(object sender, System.EventArgs e)
    {
//Get the object on which the method will be invoked
             ManagementClass processClass = new ManagementClass("Win32_Process");

//Get an input parameters object for this method
             ManagementBaseObject inParams = processClass.GetMethodParameters("Create");

//Fill in input parameter values
             inParams["CommandLine"] = "calc.exe";

//Execute the method
             ManagementBaseObject outParams = processClass.InvokeMethod ("Create", inParams, null);

//Display results
//Note: The return code of the method is provided in the "returnvalue" property of the outParams object
             Response.Write("Creation of calculator process returned: " + outParams["returnvalue"]);
             Response.Write("Process ID: " + outParams["processId"]);

         }


 9.如何通过WMI终止一个进程#region 9.如何通过WMI终止一个进程
private void Button9_Click(object sender, System.EventArgs e)
       {
             ManagementObject service =
new ManagementObject("win32_service="winmgmt"");
             InvokeMethodOptions options = new InvokeMethodOptions();
             options.Timeout = new TimeSpan(0,0,0,5); 

             ManagementBaseObject outParams = service.InvokeMethod("StopService", null, options);

             Response.Write("Return Status = " + outParams["Returnvalue"]);
         }


  10.如何用WMI 来获取远程机器的目录以及文件#region 10.如何用WMI 来获取远程机器的目录以及文件
private void Button10_Click(object sender, System.EventArgs e)
      {
             ManagementObject disk = new ManagementObject(

"win32_logicaldisk.deviceid="c:"");

             disk.Get();

             Response.Write("Logical Disk Size = " + disk["Size"] + " bytes");
         }


   11.网卡的MAC地址#region 11.网卡的MAC地址
private void Button11_Click(object sender, System.EventArgs e)
      {
             ManagementClass mc = new ManagementClass("Win32_NetworkAdapterConfiguration");
             ManagementObjectCollection moc = mc.GetInstances();
foreach(ManagementObject mo in moc)
      {
if((bool)mo["IPEnabled"] == true)
                     Response.Write("MAC address"+mo["MacAddress"].ToString()+"<br>");
                 mo.Dispose();
             }
         }


  12.CPU的系列号#region 12.CPU的系列号
private void Button12_Click(object sender, System.EventArgs e)
      {
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(cpuInfo);
             }
         }


 13.主板的系列号#region 13.主板的系列号
private void Button13_Click(object sender, System.EventArgs e)
      {
             ManagementObjectSearcher searcher=new ManagementObjectSearcher("SELECT * FROM Win32_BaseBoard");
foreach(ManagementObject share in searcher.Get())
        {
                 Response.Write("主板制造商:" + share["Manufacturer"].ToString()) ;
                 Response.Write("型号:" +share["Product"].ToString()) ;
                 Response.Write("序列号:"+share["SerialNumber"].ToString()) ;
             }
         }


 14.获取硬盘ID#region 14.获取硬盘ID
private void Button14_Click(object sender, System.EventArgs e)
      {
             String HDid;
             ManagementClass cimobject = new ManagementClass("Win32_DiskDrive");
             ManagementObjectCollection moc = cimobject.GetInstances();
foreach(ManagementObject mo in moc)
       {
                 HDid = (string)mo.Properties["Model"].Value;
                 Response.Write(HDid); 
             }
         }


 15.获取本机的用户列表#region 15.获取本机的用户列表
private void Button15_Click(object sender, System.EventArgs e)
        {
             SelectQuery query = new SelectQuery("SELECT * FROM Win32_UserAccount");
             ManagementObjectSearcher searcher = new ManagementObjectSearcher(query);
foreach(ManagementObject os in searcher.Get())
    {
                 Response.Write(os["Name"]);
             }
         }
     }

通过上面介绍的方法，可以很轻松的获取远程或本地机器的性能，进程和硬件信息等。另外：WMI也可以通过使用Vbscript等脚本调用。

本文转载：http://www.cnblogs.com/tannaiyin/archive/2009/04/27/1444520.html。