c#修改本地连接工具 ip地址，dns，网关，子网掩码

//Form1类后台

#region 加载配置文件中的信息
/// <summary>
/// 加载配置文件中的信息
/// </summary>
protected void loadConfig()
{
cf.fileName = AppDomain.CurrentDomain.BaseDirectory + "\\config.ini";
txtIP.Text = cf["ip地址"];
txtSubMark.Text = cf["子网掩码"];
txtGateWay.Text = cf["默认网关"];
txtDNS1.Text = cf["主DNS"];
txtDNS2.Text = cf["备用DNS"];
}
#endregion

#region 设置ip信息到网卡
private void btnSettingNetwork_Click(object sender, EventArgs e)
{

try
{
if (!IsIpaddress(txtIP.Text.Trim()))
{
MessageBox.Show("ip格式不正确！"); return;
}
if (!IsIpaddress(txtSubMark.Text.Trim()))
{
MessageBox.Show("子网掩码格式不正确！"); return;
}
if (!IsIpaddress(txtGateWay.Text.Trim()))
{
MessageBox.Show("网关格式不正确！"); return;
}
if (!IsIpaddress(txtDNS1.Text.Trim()))
{
MessageBox.Show("DNS1格式不正确！"); return;
}
if (!IsIpaddress(txtDNS2.Text.Trim()))
{
MessageBox.Show("DNS2格式不正确！"); return;
}
string[] ip = new string[] {txtIP.Text.Trim() };
string[] SubMark = new string[] {txtSubMark.Text.Trim() };
string[] GateWay = new string[] {txtGateWay.Text.Trim() };
string[] DNS = new string[] {txtDNS1.Text.Trim(),txtDNS2.Text.Trim() };
SetIpInfo(ip, SubMark, GateWay, DNS);
cf["ip地址"] = txtIP.Text.Trim();
cf["子网掩码"] = txtSubMark.Text.Trim();
cf["默认网关"] = txtGateWay.Text.Trim();
cf["主DNS"] = txtDNS1.Text.Trim();
cf["备用DNS"] = txtDNS2.Text.Trim();
MessageBox.Show("ip信息设置成功！","成功提示",MessageBoxButtons.OK,MessageBoxIcon.Information);
}
catch(Exception er)
{
MessageBox.Show("设置出错："+er.Message,"出错提示",MessageBoxButtons.OK,MessageBoxIcon.Error);
}
}

protected void SetIpInfo(string []ip,string []SubMark,string []GateWay,string []DNS)
{
ManagementBaseObject inPar = null;
ManagementBaseObject outPar = null;
ManagementClass mc = new ManagementClass("Win32_NetworkAdapterConfiguration");
ManagementObjectCollection moc = mc.GetInstances();
foreach (ManagementObject mo in moc)
{
if (!(bool)mo["IPEnabled"]) continue;
inPar = mo.GetMethodParameters("EnableStatic");
inPar["IPAddress"] = ip;//ip地址
inPar["SubnetMask"] =SubMark; //子网掩码
mo.InvokeMethod("EnableStatic", inPar, null);//执行

inPar = mo.GetMethodParameters("SetGateways");
inPar["DefaultIPGateway"] = GateWay; //设置网关地址 1.网关;2.备用网关
outPar = mo.InvokeMethod("SetGateways", inPar, null);//执行

inPar = mo.GetMethodParameters("SetDNSServerSearchOrder");
inPar["DNSServerSearchOrder"] = DNS; //设置DNS 1.DNS 2.备用DNS
mo.InvokeMethod("SetDNSServerSearchOrder", inPar, null);// 执行
break; //只设置一张网卡，不能多张。
}
}

#endregion

#region 从网卡获取ip设置信息
/// <summary>
/// 从网卡获取ip设置信息
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
private void btnGetFromNetwork_Click(object sender, EventArgs e)
{
NetworkInterface[] nics = NetworkInterface.GetAllNetworkInterfaces();
foreach (NetworkInterface adapter in nics)
{
bool Pd1 = (adapter.NetworkInterfaceType == NetworkInterfaceType.Ethernet); //判断是否是以太网连接
if (Pd1)
{
IPInterfaceProperties ip = adapter.GetIPProperties(); //IP配置信息
if (ip.UnicastAddresses.Count > 0)
{
txtIP.Text = ip.UnicastAddresses[0].Address.ToString();//IP地址
txtSubMark.Text = ip.UnicastAddresses[0].IPv4Mask.ToString();//子网掩码

}
if (ip.GatewayAddresses.Count > 0)
{
txtGateWay.Text = ip.GatewayAddresses[0].Address.ToString();//默认网关
}
int DnsCount = ip.DnsAddresses.Count;
Console.WriteLine("DNS服务器地址：");
if (DnsCount > 0)
{
try
{
txtDNS1.Text = ip.DnsAddresses[0].ToString(); //主DNS
txtDNS2.Text = ip.DnsAddresses[1].ToString(); //备用DNS地址
}
catch(Exception er)
{
throw er;
}
}
}
}
}
#endregion

#region 判断是否是正确的ip地址
/// <summary>
/// 判断是否是正确的ip地址
/// </summary>
/// <param name="ipaddress"></param>
/// <returns></returns>
protected bool IsIpaddress(string ipaddress)
{
string[] nums = ipaddress.Split('.');
if (nums.Length != 4) return false;
foreach (string num in nums)
{
if ( Convert.ToInt32(num) < 0 || Convert.ToInt32(num) > 255) return false;
}
return true;
}
#endregion

#region Form1_Load
private void Form1_Load(object sender, EventArgs e)
{
loadConfig();
}
#endregion

//config类

public class ConfigFile : IConfig
{
// Fields
private string _fileName;
private static ConfigFile _Instance;

// Methods
private ConfigFile()
{
}

public bool CreateFile()
{
bool flag = false;
if (File.Exists(this.fileName))
{
return flag;
}
using (File.Create(this.fileName))
{
}
return true;
}

public bool KeyExists(string Key)
{
return (this.Keys as ICollection<string>).Contains(Key);
}

// Properties
public string fileName
{
get
{
return this._fileName;
}
set
{
this._fileName = value;
}
}

public static ConfigFile Instanse
{
get
{
if (_Instance == null)
{
_Instance = new ConfigFile();
}
return _Instance;
}
}

public string this[string Key]
{
get
{
if (!this.CreateFile())
{
foreach (string str in File.ReadAllLines(this.fileName, Encoding.UTF8))
{
Match match = Regex.Match(str, @"(\w+)=([\w\W]+)");
string str2 = match.Groups[1].Value;
string str3 = match.Groups[2].Value;
if (str2 == Key)
{
return str3;
}
}
}
return "";
}
set
{
if (this.CreateFile())
{
File.AppendAllText(this.fileName, Key + "=" + value + "\r\n");
}
else
{
string[] contents = File.ReadAllLines(this.fileName, Encoding.UTF8);
for (int i = 0; i < contents.Length; i++)
{
string input = contents[i];
Match match = Regex.Match(input, @"(\w+)=(\w+)");
string str2 = match.Groups[1].Value;
string text1 = match.Groups[2].Value;
if (str2 == Key)
{
contents[i] = str2 + "=" + value;
File.WriteAllLines(this.fileName, contents);
return;
}
}
File.AppendAllText(this.fileName, Key + "=" + value + "\r\n");
}
}
}

public string[] Keys
{
get
{
List<string> list = new List<string>();
if (!this.CreateFile())
{
foreach (string str in File.ReadAllLines(this.fileName, Encoding.UTF8))
{
string item = Regex.Match(str, @"(\w+)=(\w+)").Groups[1].Value;
list.Add(item);
}
}
return list.ToArray();
}
}
}

public interface IConfig
{
// Methods
bool KeyExists(string Key);

// Properties
string this[string Key] { get; set; }
string[] Keys { get; }
}

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