获取远程服务器的资源情况

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;

using System.Management;
using System.Diagnostics;
using Newtonsoft.Json;
using Newtonsoft.Json.Linq;

namespace GH.IMS
{
    public class SystemMonit
    {
        private ManagementScope Ms;
        
        public SystemMonit()
        {
            Ms = new ManagementScope();
        }

        public SystemMonit(String ip, String userName, String password)
        {
            ConnectionOptions Conn = new ConnectionOptions();
            Conn.Username = userName;
            Conn.Password = password;
            Ms = new ManagementScope(String.Format("\\{0}\root\cimv2", ip), Conn);

            Ms.Connect();
        }


        public JArray GetLogicalDisk()
        {
            return GetInfoFromWMI("Win32_LogicalDisk", "DeviceID,Size,FreeSpace");
        }

        public  JArray GetNAConfigurationInfo()
        {
            return GetInfoFromWMI("Win32_NetworkAdapterConfiguration",
                "IPAddress,DefaultIPGateway,DNSServerSearchOrder,IPSubnet,MACAddress");
        }


        public JArray GetProcessorInfo()
        {
            return GetInfoFromWMI("Win32_Processor",
                "Name,Family,L2CacheSize,Manufacturer,MaxClockSpeed,ProcessorId,LoadPercentage");
        }

        public JArray GetPhysicalMemoryInfo()
        {
            JArray jArrayAvailable = GetInfoFromWMI("Win32_PerfRawData_PerfOS_Memory",
                "AvailableMBytes");
            JArray jArrayTotal = GetInfoFromWMI("Win32_LogicalMemoryConfiguration",
                "TotalPhysicalMemory");
            JArray result=new JArray();
            result.Add(jArrayAvailable);
            result.Add(jArrayTotal);
            return result;
        } 
        /// <summary>
        /// 通过wmi查找相关信息
        /// </summary>
        /// <param name="name">系统配置的名称</param>
        /// <param name="fields">需要查询的字段,多个字段用","分隔</param>
        /// <returns></returns>
        public JArray GetInfoFromWMI(String name, String fields)
        {
            JArray jarray = new JArray();
            try
            {
                ManagementObjectCollection mocObj =
                    new ManagementObjectSearcher(Ms, 
                        new ObjectQuery(       
                            String.Format("Select {0} From {1}", fields, name))).
                    Get();
                JObject jObj;
                foreach (ManagementObject mo in mocObj)
                {
                    jObj = new JObject();
                    foreach (String fieldName in fields.Split(','))
                    {
                        if (mo[fieldName] != null)
                            jObj.Add(new JProperty(fieldName, mo[fieldName]));
                    }
                    jarray.Add(jObj);
                }
            }
            catch
            {
                jarray = null;
            }
            return jarray;
        }

        private enum Unit { B, KB, MB, GB, ER }
        private string FormatBytes(double bytes)
        {
            int unit = 0;
            while (bytes > 1024)
            {
                bytes /= 1024;
                ++unit;
            }
            return string.Format("{0} {1}", 
                bytes.ToString("F"), 
                ((Unit)unit).ToString());
        }
    }
}

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