主机性能监控系统--7.获取网络性能信息

      网络性能信息，乍一看，好像很复杂的样子，本来还想走《主机性能监控系统--6.获取磁盘性能信息》的简单路线，不过看到“哎呀呀”同学在《主机性能监控系统--6.获取磁盘性能信息》发表的评论，觉得也是，性能信息和基本信息是有差别的，所以，在网络性能信息这个小程序里多了很多跟网络性能有关的信息，OK，废话不多说，先看效果图

      在这个小程序中获取网络性能信息的方法是利用PerformanceCounter 这个类，这个类所获取的数据跟Windows自带的性能监视器所展示的数据很相近，所以应该还算是准确吧，哈哈，不过找不到那些英文单词比较准确的中文资料，所以，就自己蛮翻译了一下了。

      OK，开始上代码，同样的，新建一个类，命名为：NetInfo，类图和代码如下：

 

    public class NetInfo
    {
        NetPerformanceStruct netPerformanceStruct;

        定义PerformanceCounter#region 定义PerformanceCounter
        PerformanceCounter pcBytesTotal = new PerformanceCounter();
        PerformanceCounter pcBytesSent = new PerformanceCounter();
        PerformanceCounter pcBytesReceived = new PerformanceCounter();
        PerformanceCounter pcPacketsTotal = new PerformanceCounter();
        PerformanceCounter pcPacketsSent = new PerformanceCounter();
        PerformanceCounter pcPacketsSentUnicast = new PerformanceCounter();
        PerformanceCounter pcPacketsSentNonUnicast = new PerformanceCounter();
        PerformanceCounter pcPacketsSentDiscarded = new PerformanceCounter();
        PerformanceCounter pcPacketsSentErrors = new PerformanceCounter();
        PerformanceCounter pcPacketsReceived = new PerformanceCounter();
        PerformanceCounter pcPacketsReceivedUnicast = new PerformanceCounter();
        PerformanceCounter pcPacketsReceivedNonUnicast = new PerformanceCounter();
        PerformanceCounter pcPacketsReceivedDiscarded = new PerformanceCounter();
        PerformanceCounter pcPacketsReceivedErrors = new PerformanceCounter();
        #endregion

        构造函数#region 构造函数
        public NetInfo()
        {

        }
        #endregion

        网络基础信息结构体#region 网络基础信息结构体
        public struct NetInfoBaseStruct
        {
            public string NetName;  //网络名称
            public string[] IPAddress;  //IP地址，包括IPv4和IPv6
            public string MACAddress;  //MAC地址
            public string IPSubnet;  //子网掩码
            public string DefaultIPGateway;  //默认网关
        }
        #endregion

        网络性能结构体#region 网络性能结构体
        public struct NetPerformanceStruct
        {
            字节#region 字节
            public float BytesTotal;  //每秒总字节数
            public float BytesSent;  //每秒发送字节数
            public float BytesReceived;  //每秒发送字节数
            #endregion

            包#region 包
            public float PacketsTotal;  //每秒总包数

            包发送#region 包发送
            public float PacketsSent;  //每秒发送包数
            public float PacketsSentUnicast;  //每秒发送单播包数
            public float PacketsSentNonUnicast;  //每秒发送非单播包数
            public float PacketsSentDiscarded;  //被丢弃的发送包数
            public float PacketsSentErrors;  //错误的发送包数
            #endregion

            包接收#region 包接收
            public float PacketsReceived;  //每秒接收包数
            public float PacketsReceivedUnicast;  //每秒接收单播包数
            public float PacketsReceivedNonUnicast;  //每秒接收非单播包数
            public float PacketsReceivedDiscarded;  //被丢弃的接收包数
            public float PacketsReceivedErrors;  //错误的接收包数
            #endregion
            #endregion

        }
        #endregion

        获取网络基本信息#region 获取网络基本信息
        /**//// <summary>
        /// 获取网络基本信息
        /// </summary>
        /// <returns>包含网络基本信息结构体的列表</returns>
        public List<NetInfoBaseStruct> GetNetInfoBase()
        {
            List<NetInfoBaseStruct> lNetInfo = new List<NetInfoBaseStruct>();
            NetInfoBaseStruct netInfoBaseStruct;


            ManagementObjectSearcher query =
                            new ManagementObjectSearcher("SELECT * FROM Win32_NetworkAdapterConfiguration WHERE IPEnabled = 'TRUE'");
            ManagementObjectCollection moCollection = query.Get();

            //遍历
            foreach (ManagementObject mObject in moCollection)
            {
                try
                {
                    netInfoBaseStruct = new NetInfoBaseStruct();
                    netInfoBaseStruct.NetName = mObject["Description"].ToString();
                    netInfoBaseStruct.IPAddress = (string[])mObject["IPAddress"];
                    netInfoBaseStruct.MACAddress = mObject["MACAddress"].ToString();
                    DefaultIPGateway#region DefaultIPGateway
                    if (mObject["DefaultIPGateway"] == null)  //如果默认网关只有一个则返回
                    {
                        netInfoBaseStruct.DefaultIPGateway = mObject["DefaultIPGateway"].ToString();
                    }
                    else   //否则返回默认网关的数组(注：这里为了简单起见，只返回第一个网关)
                    {
                        netInfoBaseStruct.DefaultIPGateway = ((string[])mObject["DefaultIPGateway"])[0];
                    }
                    #endregion
                    IPSubnet#region IPSubnet
                    if (mObject["IPSubnet"] == null)
                    {
                        netInfoBaseStruct.IPSubnet = mObject["IPSubnet"].ToString();
                    }
                    else
                    {
                        netInfoBaseStruct.IPSubnet = ((string[])mObject["IPSubnet"])[0];
                    }
                    #endregion
                    lNetInfo.Add(netInfoBaseStruct);
                }
                catch
                {
                    continue;
                }

            }

            return lNetInfo;
        }
        #endregion

        GetNetPerformance#region GetNetPerformance
        public NetPerformanceStruct GetNetPerformance(string NetName)
        {
            netPerformanceStruct = new NetPerformanceStruct();

            定义CategoryName#region 定义CategoryName
            pcBytesTotal.CategoryName = "Network Interface";
            pcBytesSent.CategoryName = "Network Interface";
            pcBytesReceived.CategoryName = "Network Interface";
            pcPacketsTotal.CategoryName = "Network Interface";
            pcPacketsSent.CategoryName = "Network Interface";
            pcPacketsSentUnicast.CategoryName = "Network Interface";
            pcPacketsSentNonUnicast.CategoryName = "Network Interface";
            pcPacketsSentDiscarded.CategoryName = "Network Interface";
            pcPacketsSentErrors.CategoryName = "Network Interface";
            pcPacketsReceived.CategoryName = "Network Interface";
            pcPacketsReceivedUnicast.CategoryName = "Network Interface";
            pcPacketsReceivedNonUnicast.CategoryName = "Network Interface";
            pcPacketsReceivedDiscarded.CategoryName = "Network Interface";
            pcPacketsReceivedErrors.CategoryName = "Network Interface";
            #endregion

            定义InstanceName#region 定义InstanceName
            pcBytesTotal.InstanceName = NetName;
            pcBytesSent.InstanceName = NetName;
            pcBytesReceived.InstanceName = NetName;
            pcPacketsTotal.InstanceName = NetName;
            pcPacketsSent.InstanceName = NetName;
            pcPacketsSentUnicast.InstanceName = NetName;
            pcPacketsSentNonUnicast.InstanceName = NetName;
            pcPacketsSentDiscarded.InstanceName = NetName;
            pcPacketsSentErrors.InstanceName = NetName;
            pcPacketsReceived.InstanceName = NetName;
            pcPacketsReceivedUnicast.InstanceName = NetName;
            pcPacketsReceivedNonUnicast.InstanceName = NetName;
            pcPacketsReceivedDiscarded.InstanceName = NetName;
            pcPacketsReceivedErrors.InstanceName = NetName;
            #endregion

            定义CounterName#region 定义CounterName
            pcBytesTotal.CounterName = "Bytes Total/sec";
            pcBytesSent.CounterName = "Bytes Sent/sec";
            pcBytesReceived.CounterName = "Bytes Received/sec";
            pcPacketsTotal.CounterName = "Packets/sec";
            pcPacketsSent.CounterName = "Packets Sent/sec";
            pcPacketsSentUnicast.CounterName = "Packets Sent Unicast/sec";
            pcPacketsSentNonUnicast.CounterName = "Packets Sent Non-Unicast/sec";
            pcPacketsSentDiscarded.CounterName = "Packets Outbound Discarded";
            pcPacketsSentErrors.CounterName = "Packets Outbound Errors";
            pcPacketsReceived.CounterName = "Packets Received/sec";
            pcPacketsReceivedUnicast.CounterName = "Packets Received Unicast/sec";
            pcPacketsReceivedNonUnicast.CounterName = "Packets Received Non-Unicast/sec";
            pcPacketsReceivedDiscarded.CounterName = "Packets Received Discarded";
            pcPacketsReceivedErrors.CounterName = "Packets Received Errors";
            #endregion

            为结构体赋值#region 为结构体赋值
            netPerformanceStruct.BytesTotal = pcBytesTotal.NextValue();
            netPerformanceStruct.BytesSent = pcBytesSent.NextValue();
            netPerformanceStruct.BytesReceived = pcBytesReceived.NextValue();
            netPerformanceStruct.PacketsTotal = pcPacketsTotal.NextValue();
            netPerformanceStruct.PacketsSent = pcPacketsSent.NextValue();
            netPerformanceStruct.PacketsSentUnicast = pcPacketsSentUnicast.NextValue();
            netPerformanceStruct.PacketsSentNonUnicast = pcPacketsSentNonUnicast.NextValue();
            netPerformanceStruct.PacketsSentDiscarded = pcPacketsSentDiscarded.NextValue();
            netPerformanceStruct.PacketsSentErrors = pcPacketsSentErrors.NextValue();
            netPerformanceStruct.PacketsReceived = pcPacketsReceived.NextValue();
            netPerformanceStruct.PacketsReceivedUnicast = pcPacketsReceivedUnicast.NextValue();
            netPerformanceStruct.PacketsReceivedNonUnicast = pcPacketsReceivedNonUnicast.NextValue();
            netPerformanceStruct.PacketsReceivedDiscarded = pcPacketsReceivedDiscarded.NextValue();
            netPerformanceStruct.PacketsReceivedErrors = pcPacketsReceivedErrors.NextValue();
            #endregion

            return netPerformanceStruct;
        }
        #endregion
    }

      新建一个窗体，命名为：NetInfoForm，窗体控件布局如效果图所示，代码如下：

    public partial class NetInfoForm : Form
    {
        public NetInfoForm()
        {
            InitializeComponent();
        }
        ComputerInfo.NetInfo netinfo = new ComputerInfo.NetInfo();
        string strNetName;
        PerformanceCounter pc;
        ComputerInfo.NetInfo.NetPerformanceStruct netInfoStruct;
        private void NetInfoForm_Load(object sender, EventArgs e)
        {
            获取网络基本信息#region 获取网络基本信息

            List<ComputerInfo.NetInfo.NetInfoBaseStruct> lNetInfoBase = netinfo.GetNetInfoBase();
            设置ListView的样式以及列#region 设置ListView的样式以及列
            lvNet.View = View.Details;
            lvNet.Columns.Add("项", 150);
            lvNet.Columns.Add("值", 300);
            lvNet.FullRowSelect = true;
            lvNet.GridLines = true;
            #endregion

            strNetName = lNetInfoBase[0].NetName;

            定义一些需要用到的项#region 定义一些需要用到的项
            ListViewItem lviNetDes = new ListViewItem(new string[] { "网卡名称", lNetInfoBase[0].NetName });
            ListViewItem lviIPAddressV4 = new ListViewItem(new string[] { "IP地址IPV4", lNetInfoBase[0].IPAddress[0] });
            ListViewItem lviIPAddressV6 = new ListViewItem(new string[] { "IP地址IPV6", lNetInfoBase[0].IPAddress[1] });
            ListViewItem lviMACAddress = new ListViewItem(new string[] { "MAC地址", lNetInfoBase[0].MACAddress });
            ListViewItem lviDefaultIPGateway = new ListViewItem(new string[] { "默认网关", lNetInfoBase[0].DefaultIPGateway });
            ListViewItem lviIPSubnet = new ListViewItem(new string[] { "子网掩码", lNetInfoBase[0].IPSubnet });
            #endregion

            将项添加到ListView控件里面#region 将项添加到ListView控件里面
            lvNet.Items.Add(lviNetDes);
            lvNet.Items.Add(lviIPAddressV4);
            lvNet.Items.Add(lviIPAddressV6);
            lvNet.Items.Add(lviMACAddress);
            lvNet.Items.Add(lviDefaultIPGateway);
            lvNet.Items.Add(lviIPSubnet);
            #endregion
            #endregion

            设置ListView的样式以及列#region 设置ListView的样式以及列
            lvNetPerformance.View = View.Details;
            lvNetPerformance.Columns.Add("项", 150);
            lvNetPerformance.Columns.Add("值", 300);
            lvNetPerformance.FullRowSelect = true;
            lvNetPerformance.GridLines = true;
            #endregion

        }

        private void NetInfotimer_Tick(object sender, EventArgs e)
        {

            netInfoStruct = netinfo.GetNetPerformance(strNetName);
            lvNetPerformance.Items.Clear();
            定义一些需要用到的项#region 定义一些需要用到的项
            ListViewItem lviBytesTotal = new ListViewItem(new string[] { "每秒字节总数", netInfoStruct.BytesTotal.ToString() });
            ListViewItem lviBytesSent = new ListViewItem(new string[] { "每秒发送字节数", netInfoStruct.BytesSent.ToString() });
            ListViewItem lviBytesReceived = new ListViewItem(new string[] { "每秒接收字节数", netInfoStruct.BytesReceived.ToString() });
            ListViewItem lviPacketsTotal = new ListViewItem(new string[] { "每秒包总数", netInfoStruct.PacketsTotal.ToString() });
            ListViewItem lviPacketsSent = new ListViewItem(new string[] { "每秒包发送数", netInfoStruct.PacketsSent.ToString() });
            ListViewItem lviPacketsSentUnicast = new ListViewItem(new string[] { "每秒发送单播包数", netInfoStruct.PacketsSentUnicast.ToString() });
            ListViewItem lviPacketsSentNonUnicast = new ListViewItem(new string[] { "每秒发送非单播包数", netInfoStruct.PacketsSentNonUnicast.ToString() });
            ListViewItem lviPacketsSentDiscarded = new ListViewItem(new string[] { "丢弃的发送包数", netInfoStruct.PacketsSentDiscarded.ToString() });
            ListViewItem lviPacketsSentErrors = new ListViewItem(new string[] { "错误的发送包数", netInfoStruct.PacketsSentErrors.ToString() });
            ListViewItem lviPacketsReceived = new ListViewItem(new string[] { "每秒包接收数", netInfoStruct.PacketsReceived.ToString() });
            ListViewItem lviPacketsReceivedUnicast = new ListViewItem(new string[] { "每秒单播包接收数", netInfoStruct.PacketsReceivedUnicast.ToString() });
            ListViewItem lviPacketsReceivedNonUnicast = new ListViewItem(new string[] { "每秒非单播包接收总数", netInfoStruct.PacketsReceivedNonUnicast.ToString() });
            ListViewItem lviPacketsReceivedDiscarded = new ListViewItem(new string[] { "丢弃的接收包数", netInfoStruct.PacketsReceivedDiscarded.ToString() });
            ListViewItem lviPacketsReceivedErrors = new ListViewItem(new string[] { "错误的接收包数", netInfoStruct.PacketsReceivedErrors.ToString() });
            #endregion

            将项添加到ListView控件里面#region 将项添加到ListView控件里面
            lvNetPerformance.Items.Add(lviBytesTotal);
            lvNetPerformance.Items.Add(lviBytesSent);
            lvNetPerformance.Items.Add(lviBytesReceived);
            lvNetPerformance.Items.Add(lviPacketsTotal);
            lvNetPerformance.Items.Add(lviPacketsSent);
            lvNetPerformance.Items.Add(lviPacketsSentUnicast);
            lvNetPerformance.Items.Add(lviPacketsSentNonUnicast);
            lvNetPerformance.Items.Add(lviPacketsSentDiscarded);
            lvNetPerformance.Items.Add(lviPacketsSentErrors);
            lvNetPerformance.Items.Add(lviPacketsReceived);
            lvNetPerformance.Items.Add(lviPacketsReceivedUnicast);
            lvNetPerformance.Items.Add(lviPacketsReceivedNonUnicast);
            lvNetPerformance.Items.Add(lviPacketsReceivedDiscarded);
            lvNetPerformance.Items.Add(lviPacketsReceivedErrors);
            #endregion



        }
    }

      OK，这样就把网络性能信息这个小程序做完了，由于在功能和技术方面上都没有什么大的难点，在此就不做过多的说明了，有不懂的同学，可以留言，至于“哎呀呀”同学在《主机性能监控系统--6.获取磁盘性能信息》提到获取的信息太简单，太少的问题，我会在后期整合的时候考虑把磁盘的一些性能信息加进去的，在此感谢“哎呀呀”以及其他提出建议或意见的同学，OK，收工~~

      未完，待续~~