c# 如何对网络信息进行相关设置(ip,dns,网关等)

     网络的相关设置在项目开发中有较多的应用，有时候需要在项目中对网络信息进行相关设置。

     现在提供提供几种相关的辅助方法类。

(1).IP地址

  /// <summary>
  /// IP地址
  /// </summary>
  public string IpAddress
  {
   get
   {
    string ipAddress;
    var address = GetAddress();
    if (address == null)
    {
     ipAddress = string.Empty;
    }
    else
    {
     ipAddress = address.Address.ToString();
    }
    return ipAddress;
   }
   set { if (value == null) throw new ArgumentNullException(nameof(value)); }
  }

(2).网关地址

  /// <summary>
  /// 网关地址
  /// </summary>
  public string Getway
  {
   get
   {    
    string getway;
    if (Getwaryes != null && Getwaryes.Count > 0)
    {

     getway = Getwaryes[0].Address.ToString() == "0.0.0.0" ? "" : Getwaryes[0].Address.ToString(); 
    }
    else
    {
     getway =string.Empty;
    }
    return getway;
   }
   set { if (value == null) throw new ArgumentNullException(nameof(value)); }
  }

(3). DHCP服务器地址

  /// <summary>
  /// DHCP服务器地址
  /// </summary>
  public string DhcpServer
  {
   get
   {
    string dhcpServer;
    if (DhcpServerAddresses != null && DhcpServerAddresses.Count > 0)
    {
     dhcpServer = DhcpServerAddresses[0].ToString();
    }
    else
    {
     dhcpServer = string.Empty;
    }
    return dhcpServer;
   }
   set { if (value == null) throw new ArgumentNullException(nameof(value)); }
  }

(4).MAC地址

  /// <summary>
  /// MAC地址
  /// </summary>
  public string MacAddres
  {
   get
   {
    string macAddress;
    if (MacAddress == null)
     macAddress = string.Empty;
    else if (MacAddress.ToString().Length == 12)
    {
     macAddress = MacAddress.ToString().Insert(4, "-").Insert(9, "-");
    }
    else
    {
     macAddress = MacAddress.ToString();
    }
    return macAddress;
   }
   set { if (value == null) throw new ArgumentNullException(nameof(value)); }
  }

(5). 主DNS地址

  /// <summary>
  /// 主DNS地址
  /// </summary>
  public string DnsMain
  {
   get
   {
    var dnsMain =string.Empty;

    if (DnsAddresses.Count > 0)
    {
     if (IsIPAddress(DnsAddresses[0].ToString()))
     {
      dnsMain = DnsAddresses[0].ToString();
     }
    }
    else
    {
     dnsMain =string.Empty;
    }
    return dnsMain;
   }
   set { if (value == null) throw new ArgumentNullException(nameof(value)); }
  }

(6).备用DNS地址

  /// <summary>
  /// 备用DNS地址
  /// </summary>
  public string DnsBackup
  {
   get
   {
    var dnsBackup = string.Empty;
    if (DnsAddresses.Count > 1)
    {
     if (IsIPAddress(DnsAddresses[1].ToString()))
     {
      dnsBackup = DnsAddresses[1].ToString();
     }

    }
    else
    {
     dnsBackup = string.Empty;
    }
    return dnsBackup;
   }
   set { if (value == null) throw new ArgumentNullException(nameof(value)); }
  }

(7).子网掩码

  /// <summary>
  /// 子网掩码
  /// </summary>
  public string Mask
  {
   get
   {
    string mask;
    var address = GetAddress();
    if (address == null)
    {
     mask = "";
    }
    else
    {
     if (address.IPv4Mask != null) 
     {
      mask = address.IPv4Mask.ToString();
     }
     else
     {
      mask = "255.255.255.0";
     }
     
    }
    return mask;
   }
   set { if (value == null) throw new ArgumentNullException(nameof(value)); }
  }

(8).属性

  /// <summary>
  /// DNS集合
  /// </summary>
  public IPAddressCollection DnsAddresses { get; set; }
  /// <summary>
  /// 网关地址集合
  /// </summary>
  public GatewayIPAddressInformationCollection Getwaryes { get; set; }

  /// <summary>
  /// IP地址集合
  /// </summary>
  public UnicastIPAddressInformationCollection IpAddresses { get; set; }

  /// <summary>
  /// DHCP地址集合
  /// </summary>
  public IPAddressCollection DhcpServerAddresses { get; set; }

  /// <summary>
  /// 网卡MAC地址
  /// </summary>
  public PhysicalAddress MacAddress { get; set; }

  /// <summary>
  /// 是否启用DHCP服务
  /// </summary>
  public bool IsDhcpEnabled { get; set; }

  /// <summary>
  /// 描述信息
  /// </summary>
  public string Description { get; set; }
  /// <summary>
  /// 网络接口类型
  /// </summary>
  /// <returns></returns>
  public string NetworkInterfaceType { get; set; }

  /// <summary>
  /// 速度
  /// </summary>
  public string Speed { get; set; } 

(9).是否是IP地址

  /// <summary>
  /// 是否是IP地址
  /// </summary>
  /// <param name="ipAddress"></param>
  /// <returns></returns>
  public bool IsIPAddress(string ipAddress)
  {
   const string regexStr = @"^(25[0-5]|2[0-4][0-9]|[0-1]{1}[0-9]{2}|[1-9]{1}[0-9]{1}|[1-9])\.(25[0-5]|2[0-4][0-9]|[0-1]{1}[0-9]{2}|[1-9]{1}[0-9]{1}|[1-9]|0)\.(25[0-5]|2[0-4][0-9]|[0-1]{1}[0-9]{2}|[1-9]{1}[0-9]{1}|[1-9]|0)\.(25[0-5]|2[0-4][0-9]|[0-1]{1}[0-9]{2}|[1-9]{1}[0-9]{1}|[0-9])$";
   var regex = System.Text.RegularExpressions.Regex.Match(ipAddress, regexStr);
   return regex.Success;
  }

(10).启用DHCP服务

  /// <summary>
  /// 启用DHCP服务
  /// </summary>
  public bool EnableDhcp()
  {
   var wmi = new ManagementClass("Win32_NetworkAdapterConfiguration");
   var moc = wmi.GetInstances();
   foreach (var o in moc)
   {
    var mo = (ManagementObject) o;
    if (!(bool)mo["IPEnabled"])
     continue;
    if (mo["SettingID"].ToString() != NetworkInterfaceId) continue;
    mo.InvokeMethod("SetDNSServerSearchOrder", null);
    mo.InvokeMethod("EnableDHCP", null);
   }
   //查询现适配器接口信息
   var networkAdapter = new NetworkAdapterUtil().GetNeworkAdapterByNetworkInterfaceId(NetworkInterfaceId); 
   return networkAdapter != null && networkAdapter.IsDhcpEnabled;
  }

(11).设置IP地址,子网掩码，网关,DNS

  /// <summary>
  /// 设置IP地址,子网掩码，网关,DNS,
  /// </summary>
  public bool SetIpAddressSubMaskDnsGetway(string ipAddress, string subMask, string getWay, string dnsMain, string dnsBackup)
  {
   string[] dnsArray;
   if (string.IsNullOrEmpty(dnsBackup))
   {
    dnsArray = new[] { dnsMain };
   }
   else
   {
    dnsArray = new[] { dnsMain, dnsBackup };
   }
   return SetIpAddress(new[] { ipAddress }, new[] { subMask }, new[] { getWay }, dnsArray);

  }

  /// <summary>
  /// 设置IP地址和子网掩码
  /// </summary>
  public bool SetIpAddressAndSubMask(string ipAddress, string subMask)
  {
   return SetIpAddress(new[] { ipAddress }, new[] { subMask }, null, null);

  }


  /// <summary>
  /// 设置IP网关
  /// </summary>
  public bool SetGetWayAddress(string getWay)
  {
   return SetIpAddress(null, null, new[] { getWay }, null);

  }

(12).设置主,备份DNS地址

  /// <summary>
  /// 设置主,备份DNS地址
  /// </summary>
  public bool SetDnsAddress(string dnsMain, string dnsBackup)
  {
   string[] dnsArray;
   if (string.IsNullOrEmpty(dnsBackup))
   {
    dnsArray = new[] { dnsMain };
   }
   else
   {
    dnsArray = new[] { dnsMain, dnsBackup };
   }
   return SetIpAddress(null, null, null, dnsArray);

  }

(13).得到IPV4地址

  /// <summary>
  /// 得到IPV4地址
  /// </summary>
  /// <returns></returns>
  private UnicastIPAddressInformation GetAddress()
  {
   if (IpAddresses == null || IpAddresses.Count <= 0) return null;
   switch (IpAddresses.Count)
   {
    case 3:
     return IpAddresses[2];
    case 2:
     return IpAddresses[1];
   }
   return IpAddresses[0];
  }

(14).检查设置IP地址,如果返回空，表示检查通过，为了方便返回就字符串了

  /// <summary>
  /// 检查设置IP地址,如果返回空，表示检查通过，为了方便返回就字符串了，没用枚举了
  /// </summary>
  /// <param name="ipAddress"></param>
  /// <param name="subMask"></param>
  /// <param name="getWay"></param>
  /// <param name="dnsMain"></param>
  /// <param name="dnsBackup"></param>
  /// <returns></returns>
  public string IsIPAddress(string ipAddress, string subMask, string getWay, string dnsMain, string dnsBackup)
  {
   if (!string.IsNullOrEmpty(ipAddress))
   {
    if (!IsIPAddress(ipAddress)) return "IP地址格式不对";
   }
   if (!string.IsNullOrEmpty(subMask))
   {
    if (!IsIPAddress(subMask)) return "子网掩码格式不对";
   }
   if (!string.IsNullOrEmpty(getWay))
   {
    if (!IsIPAddress(getWay)) return "网关地址格式不对";
   }
   if (!string.IsNullOrEmpty(dnsMain))
   {
    if (!IsIPAddress(dnsMain)) return "主DNS地址格式不对";
   }
   if (string.IsNullOrEmpty(dnsBackup)) return "";
   return !IsIPAddress(dnsBackup) ? "备用DNS地址格式不对" : "";
  }

(15).设置IP地址

  /// <summary>
  /// 设置IP地址
  /// </summary>
  /// <param name="ip"></param>
  /// <param name="submask"></param>
  /// <param name="getway"></param>
  /// <param name="dns"></param>
  private bool SetIpAddress(IEnumerable ip, IEnumerable submask, IEnumerable getway, IEnumerable dns)
  {
   var wmi = new ManagementClass("Win32_NetworkAdapterConfiguration");
   var moc = wmi.GetInstances();
   foreach (var o in moc)
   {
    var mo = (ManagementObject) o;
    if (!(bool)mo["IPEnabled"])
     continue;
    if (NetworkInterfaceId != mo["SettingID"].ToString()) continue;
    ManagementBaseObject inPar;
    ManagementBaseObject outPar;
    string str = null;
    if (ip != null && submask != null)
    {
     inPar = mo.GetMethodParameters("EnableStatic");
     inPar["IPAddress"] = ip;
     inPar["SubnetMask"] = submask;
     outPar = mo.InvokeMethod("EnableStatic", inPar, null);
     if (outPar != null) str = outPar["returnvalue"].ToString();
     return (str=="0"||str=="1");
     //获取操作设置IP的返回值， 可根据返回值去确认IP是否设置成功。 0或1表示成功
    }
    if(getway!=null)
    {
     inPar = mo.GetMethodParameters("SetGateways");
     inPar["DefaultIPGateway"] = getway;
     outPar = mo.InvokeMethod("SetGateways", inPar, null);
     if (outPar != null) str = outPar["returnvalue"].ToString();
     return (str == "0" || str == "1");
    }
    if (dns == null) continue;
    inPar = mo.GetMethodParameters("SetDNSServerSearchOrder");
    inPar["DNSServerSearchOrder"] = dns;
    outPar = mo.InvokeMethod("SetDNSServerSearchOrder", inPar, null);
    if (outPar != null) str = outPar["returnvalue"].ToString();
    return (str == "0" || str == "1");
   }
   return false;
  } 

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