C# 设置IP、dns等工具源码

using System;using System.Collections.Generic;using System.Text;using System.Management;using System.Text.RegularExpressions;namespace myIPTools{ public class myIPHelper { /// <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、子网掩码、网关、DNS /// </summary> /// <param name="ip">IP地址</param> /// <param name="submask">子网掩码</param> /// <param name="getway">网关</param> /// <param name="dns">DNS</param> public static void SetIPAddress(string ip, string submask, string getway,string dns) { SetIPAddress(new string[] { ip }, new string[] { submask }, new string[] { getway }, new string[] { dns }); } 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IP地址格式 /// </summary> /// <param name="ip"></param> /// <returns></returns> public static bool IsIPAddress(string ip) { string[] arr = ip.Split('.'); if (arr.Length != 4) return false; string pattern = @"\d{1,3}"; for (int i = 0; i < arr.Length; i ) { string d = arr[i]; if (i == 0 && d == "0") return false; if (!Regex.IsMatch(d, pattern)) return false; if (d != "0") { d = d.TrimStart('0'); if (d == "") return false; if (int.Parse(d) > 255) return false; } } return true; } }}