IT部门要求统计一下各个Team手里的Windows Server，提供一个大概的配置信息，但是Server太多，逐个查看太过于麻烦，于是想到直接用VMI去获取系统数据，但是必须要本地运行。网上查找发现ManagementScope 可以实现远程登录，正好可以用ManagementScope与WMI写了一个小程序Windows Server获取信息。

1WMI

WMI 即Windows Management Instrumentation，可以通过WMI控制远程计算机。通过DCOM连接实现。还有一种通过SOAP实现管理连接的WinRM。
微软文档：https://msdn.microsoft.com/en-us/library/aa384642(v=vs.85).aspx
官方文档详尽的讲解了VIM，这里直接跳到.NET部分。
System.Management 命名空间下的类及其功能

System.Management.Instrumentation命名空间下的类及其功能

2 WMI Queries

查询WMI的语句类似于SQL，叫WQL (SQL for WMI)
例如：

SELECT * FROM Win32_OperatingSystem

语法参考：https://msdn.microsoft.com/en-us/library/aa394606(v=vs.85).aspx
微软提供了很多的Win32 Provider,用于查询系统信息。具体需要哪些和对应查询出来的字段含义请参考：https://msdn.microsoft.com/en-us/library/aa394388(v=vs.85).aspx

3代码实现

了解了如上信息，需要查询数据，要用到的类有SelectQuery, ManagementObjectSearcher, WqlObjectQuery, ObjectQuery。远程登录需要用到ConnectionOptions, ManagementScope。
代码如下：

        /// <summary>
        /// 远程连接计算机
        /// </summary>
        /// <param name="Host">计算机名称</param>
        /// <param name="UID">登录用户</param>
        /// <param name="PWD">登录密码</param>
        /// <returns></returns>
        private static  ManagementScope getManagementScope(string Host, string UID, string PWD)
        {
            ConnectionOptions connOption = new ConnectionOptions();
            connOption.Username = UID.Trim();
            connOption.Password = PWD;
            return new ManagementScope("//" + Host.Trim() + "/root/cimv2", connOption);
            //return new ManagementScope("//" + Host.Trim() + "/root/cimv2");
        }

        /// <summary>  
        /// 获取远程Windows系统的OS信息  
        /// </summary>  
        /// <param name="Host">远程主机</param>  
        /// <param name="UID">远程主机的用户名</param>  
        /// <param name="PWD">密码</param>  
        /// <returns>操作系统信息，或报告错误信息</returns>  
        public static  string GetOSInfo(string Host, string UID, string PWD)
        {
            string rtn = "";
            ManagementScope mms = null;
            ManagementObjectSearcher cmd = null;
            ManagementObjectCollection objs = null;
            try
            {
                mms = getManagementScope(Host, UID, PWD);
                string sql = "Select * from Win32_OperatingSystem";
          
                cmd = new ManagementObjectSearcher(mms, new ObjectQuery(sql));
                objs = cmd.Get();
                foreach (ManagementObject obj in objs)
                {
                    rtn = Host + "," + obj["Caption"].ToString().Trim();
                }
                string sql2 = "Select * from Win32_Processor";
                cmd = new ManagementObjectSearcher(mms, new ObjectQuery(sql2));
                objs = cmd.Get();
                rtn += ",CUP个数,"+objs.Count.ToString();
                rtn += ",CUP型号," + objs.Count.ToString();
                foreach (ManagementObject obj in objs)
                {
                    rtn += "," + obj["Name"].ToString().Trim();
                    rtn += ",核心数," + obj["NumberOfCores"];
                }
            }
            catch (Exception ex)
            {
                throw ex;
            }
            finally
            {
                mms = null;
                if (cmd != null)
                    cmd.Dispose();
                if (objs != null)
                    objs.Dispose();
            }
            return rtn;
        }  

将服务器，用户，密码保存在一个txt文档中，读取调用生成CSV文件

static void Main(string[] args)
        {
           string[] serverList = File.ReadAllLines("server.txt");
            List<string>InfoList= new List<string>();
            foreach (string item in serverList)
            {
                string[] infos = item.Split('\t');
                if (infos.Count() == 3)
                {
                    try
                    {
                        string result = GetOSInfo(infos[0], infos[1], infos[2]);
                       InfoList.Add(result);
                        Console.WriteLine(result);
                    }
                    catch(Exception ex)
                    {
                        Console.WriteLine(infos[0]+":"+ex.Message);
                    }
                }
            }
            File.WriteAllLines("server.csv", InfoList,Encoding.UTF8);
            Console.WriteLine("pass any key to end");
            Console.ReadLine();
        }