1.使用WMI控制Windows进程

本文主要介绍两种WMI的进行操作：检查进程是否存在、创建新进行

代码如下：

using System; 
using System.Collections.Generic; 
using System.Text; 
using System.Management; 
using System.Threading; 

namespace TJVictor.WMI 
{ 
    public class Win32_Process:WMIBaseClass 
    { 
        #region Property 
        private int timeout = 30; 
        public int TimeOut 
        { 
            get { return timeout; } 
            set { timeout = value; } 
        } 

        private string wqlSelect = "select * FROM Win32_Process where Name='{0}'"; 
        #endregion 

        #region Construction 
        public Win32_Process() 
            : base() 
        { 
            base.Connection(); 
        } 

        public Win32_Process(string domain, string Ip, string user, string psd) 
            : base(domain, Ip, user, psd) 
        { 
            base.Connection(); 
        } 
        #endregion 

        #region public function 
        public bool IsProcessExist(string name) 
        { 
            if (!GetSelectQueryCollection(wqlSelect,name).Count.Equals(0)) 
                return true; 
            return false; 
        } 

        public void CreateProcess(string name) 
        { 
            ManagementClass processClass = new ManagementClass("Win32_Process"); 
            processClass.Scope = base.Scope; 

            ManagementBaseObject mbo = processClass.GetMethodParameters("Create"); 
            mbo["CommandLine"] = string.Format(name); 
            ManagementBaseObject result = processClass.InvokeMethod("Create", mbo, null); 
            //检测执行结果 
            CheckExceptionClass.CheckProcessException(int.Parse(result["returnValue"].ToString())); 
            //检测进程是否执行完成 
            int tempTimeout = this.timeout; 
            while (!GetSelectQueryCollection("select * FROM Win32_Process where ProcessID='{0}'",result["ProcessID"].ToString()).Count.Equals(0)) 
            { 
                if (tempTimeout.Equals(0)) 
                { 
                    throw new TJVictor.WMI.WmiException.ProcessException( 
                        string.Format("在 {0} 上执行 {1} 操作失败，执行超时", base.Ip, name)); 
                } 
                tempTimeout--; 
                Thread.Sleep(1000); 
            } 
        } 
        #endregion 
    } 
}

2.使用WMI来控制Windows服务

本文介绍如何使用WMI来判断服务是否存在、如何创建新服务，删除服务、如何启服务、停服务

代码如下：

using System;
using System.Collections.Generic;
using System.Text;
using System.Management;
using System.Threading;

namespace TJVictor.WMI
{
    public class Win32_Service:WMIBaseClass
    {
        #region Property
        private bool completed = false;
        private int timeout = 30;
        public int TimeOut
        {
            get { return timeout; }
            set { timeout = value; }
        }

        private string wqlSelect = string.Empty;
        #endregion

        #region Construction
        public Win32_Service()
            : base()
        {
            wqlSelect = "select * FROM Win32_Service where Name='{0}'";
            base.Connection();
        }

        public Win32_Service(string domain, string Ip, string user, string psd)
            : base(domain, Ip, user, psd)
        {
            wqlSelect = "select * FROM Win32_Service where Name='{0}'";
            base.Connection();
        }
        #endregion

        #region public function
        public bool IsServiceExist(string name)
        {
            
            if (!GetSelectQueryCollection(wqlSelect,name).Count.Equals(0))
                return true;
            return false;
        }

        public void StartService(string name)
        {
            if(!IsServiceExist(name))
                throw new TJVictor.WMI.WmiException.ServiceException(string.Format("{0} 服务不存在",name));
            object result = string.Empty;
            ManagementObjectSearcher mos = GetObjectSearcher(wqlSelect, name);
            foreach (ManagementObject mo in mos.Get())
            {
                result = mo.InvokeMethod("StartService", null);
                break;
            }
            CheckExceptionClass.CheckServiceException(int.Parse(result.ToString()));
            TestServiceState(mos, "Running", string.Format("{0} 服务在 {1} 机器上启动失败，启动超时",name,base.Ip));
        }

        public void StopService(string name)
        {
            if (!IsServiceExist(name))
                throw new TJVictor.WMI.WmiException.ServiceException(string.Format("{0} 服务不存在", name));
            object result = string.Empty;
            ManagementObjectSearcher mos = GetObjectSearcher(wqlSelect, name);
            foreach (ManagementObject mo in mos.Get())
            {
                result = mo.InvokeMethod("StopService", null);
                break;
            }
            CheckExceptionClass.CheckServiceException(int.Parse(result.ToString()));
            TestServiceState(mos, "Stopped", string.Format("{0} 服务在 {1} 机器上停止失败，停止超时", name, base.Ip));
        }

        public void CreateService(string name, string displayName, string startMode, string pathName, string startName, string startPassword,
            string serviceType)
        {
            if(IsServiceExist(name))
                throw new TJVictor.WMI.WmiException.ServiceException(string.Format("{0} 服务已经存在",name));

            int tempTimeout = this.timeout;
            ManagementClass processClass = new ManagementClass("Win32_Service");
            processClass.Scope = base.Scope;

            string method = "Create";
            ManagementBaseObject inputArgs = processClass.GetMethodParameters(method);
            inputArgs["Name"] = name;
            inputArgs["DisplayName"] = displayName;
            inputArgs["StartMode"] = startMode;
            inputArgs["PathName"] = pathName;
            if (!startName.Equals(string.Empty))
            {
                inputArgs["StartName"] = startName;
                inputArgs["StartPassword"] = startPassword;
            }
            ManagementBaseObject ob = processClass.InvokeMethod(method, inputArgs, null);
            CheckExceptionClass.CheckServiceException(int.Parse(ob["returnValue"].ToString()));

            //检测服务是否已经安装成功
            while (!IsServiceExist(name))
            {
                if (tempTimeout.Equals(0))
                {
                    throw new TJVictor.WMI.WmiException.ServiceException(
                        string.Format("在 {0} 上安装 {1} 服务超时", base.Ip, name));
                }
                Thread.Sleep(1000);
                tempTimeout--;
            } 
        }

        public void DeleteService(string name)
        {
            object result = string.Empty;
            if(!IsServiceExist(name))
                throw new TJVictor.WMI.WmiException.ServiceException(string.Format("{0} 服务不存在",name));
            foreach (ManagementObject mo in GetSelectQueryCollection(wqlSelect, name))
            {
                result = mo.InvokeMethod("delete", null);
                break;
            }
            //检测卸载命令是否执行成功
            CheckExceptionClass.CheckServiceException(int.Parse(result.ToString()));
            //检测服务是否已经卸载成功
            int tempTimeout = this.timeout;
            while (IsServiceExist(name))
            {
                if (tempTimeout.Equals(0))
                {
                    throw new TJVictor.WMI.WmiException.ServiceException(
                        string.Format("在 {0} 上卸载 {1} 服务超时", base.Ip, name));
                }
                Thread.Sleep(1000);
                tempTimeout--;
            }
        }
        #endregion

        #region private function
        private void TestServiceState(ManagementObjectSearcher mos, string state,string errorMes)
        {
            completed = false;
            int tempTimeout = timeout;
            while (!completed)
            {
                if (tempTimeout.Equals(0))
                {
                    throw new TJVictor.WMI.WmiException.ServiceException(errorMes);
                }
                foreach (ManagementObject mo in mos.Get())
                {
                    if (mo["State"].ToString().Equals(state))
                    {
                        completed = true;
                    }
                    break;
                }
                Thread.Sleep(1000);
                tempTimeout--;
            }
        }
        #endregion
    }
}