C#设置本地网络如DNS、网关、子网掩码、IP等等

using System;

using System.Collections.Generic;

using System.Text;

using System;

using System.Collections;

using System.Text;

using System.Management;

using System.Text.RegularExpressions;

namespace Demo

{

/// <summary>

/// 网络设置类，设置网络的各种参数（DNS、网关、子网掩码、IP）

/// </summary>

public class NetworkSetting

{

public NetworkSetting()

{

// 构造函数逻辑

}

/// <summary>

/// 设置DNS

/// </summary>

/// <param name="dns"></param>

public static void SetDNS(string[] dns)

{

SetIPAddress(null, null, null, dns);

}

/// <summary>

/// 设置网关

/// </summary>

/// <param name="getway"></param>

public static void SetGetWay(string getway)

{

SetIPAddress(null, null, new string[] { getway }, null);

}

/// <summary>

/// 设置网关

/// </summary>

/// <param name="getway"></param>

public static void SetGetWay(string[] getway)

{

SetIPAddress(null, null, getway, null);

}

/// <summary>

/// 设置IP地址和掩码

/// </summary>

/// <param name="ip"></param>

/// <param name="submask"></param>

public static void SetIPAddress(string ip, string submask)

{

SetIPAddress(new string[] { ip }, new string[] { submask }, null, null);

}

/// <summary>

/// 设置IP地址，掩码和网关

/// </summary>

/// <param name="ip"></param>

/// <param name="submask"></param>

/// <param name="getway"></param>

public static void SetIPAddress(string ip, string submask, string getway)

{

SetIPAddress(new string[] { ip }, new string[] { submask }, new string[] { getway }, null);

}

/// <summary>

/// 设置IP地址，掩码，网关和DNS

/// </summary>

/// <param name="ip"></param>

/// <param name="submask"></param>

/// <param name="getway"></param>

/// <param name="dns"></param>

public static void SetIPAddress(string[] ip, string[] submask, string[] getway, string[] dns)

{

ManagementClass wmi = new ManagementClass("Win32_NetworkAdapterConfiguration");

ManagementObjectCollection moc = wmi.GetInstances();

ManagementBaseObject inPar = null;

ManagementBaseObject outPar = null;

foreach (ManagementObject mo in moc)

{

//如果没有启用IP设置的网络设备则跳过

if (!(bool) mo["IPEnabled"])

continue;

//设置IP地址和掩码

if (ip != null && submask != null)

{

inPar = mo.GetMethodParameters("EnableStatic");

inPar["IPAddress"] = ip;

inPar["SubnetMask"] = submask;

outPar = mo.InvokeMethod("EnableStatic", inPar, null);

}

//设置网关地址

if (getway != null)

{

inPar = mo.GetMethodParameters("SetGateways");

inPar["DefaultIPGateway"] = getway;

outPar = mo.InvokeMethod("SetGateways", inPar, null);

}

//设置DNS地址

if (dns != null)

{

inPar = mo.GetMethodParameters("SetDNSServerSearchOrder");

inPar["DNSServerSearchOrder"] = dns;

outPar = mo.InvokeMethod("SetDNSServerSearchOrder", inPar, null);

}

}

}

/// <summary>

/// 启用DHCP服务器

/// </summary>

public static void EnableDHCP()

{

ManagementClass wmi = new ManagementClass("Win32_NetworkAdapterConfiguration");

ManagementObjectCollection moc = wmi.GetInstances();

foreach (ManagementObject mo in moc)

{

//如果没有启用IP设置的网络设备则跳过

if (!(bool) mo["IPEnabled"])

continue;

//重置DNS为空

mo.InvokeMethod("SetDNSServerSearchOrder", null);

//开启DHCP

mo.InvokeMethod("EnableDHCP", null);

}

}

/// <summary>

/// 判断是否符合IP地址格式

/// </summary>

/// <param name="ip"></param>

/// <returns></returns>

public static bool IsIPAddress(string ip)

{

//将完整的IP以“.”为界限分组

string[] arr = ip.Split('.');

//判断IP是否为四组数组成

if (arr.Length != 4)

return false;

//正则表达式，1~3位整数

string pattern = @"\d{1,3}";

for (int i = 0; i < arr.Length; i++)

{

string d = arr[i];

//判断IP开头是否为0

if (i == 0 && d == "0")

return false;

//判断IP是否是由1~3位数组成

if (!Regex.IsMatch(d, pattern))

return false;

if (d != "0")

{

//判断IP的每组数是否全为0

d = d.TrimStart('0');

if (d == "")

return false;

//判断IP每组数是否大于255

if (int.Parse(d) > 255)

return false;

}

} return true;

}

}

}