[指导]C 设置本地连接的IP地址

[指导]C 设置本地连接的IP地址 C# 设置本地连接的IP地址 因为我实在是太懒了，每次在实验室和寝室切换上网时都需要重设IP，烦啊。。。 下面这个程序实现了固定IP的设置(配置文件config.xml)和DHCP 的切换。 顺便学习了一下xml文件的读取和WMI的使用技巧，懒人有懒福呵(?:?b汗) 代码如下: using System; using System.Collections.Generic; using System.ComponentModel; using System.Data; using System.Drawing; using System.Linq; using System.Text; using System.Management; using System.Net.NetworkInformation; using System.Text.RegularExpressions; using System.Xml; using System.Windows.Forms; namespace IpTransferTool { public partial class Form1 : Form { private string[] ip; private string[] submask; private string[] getway; private string[] dns; public Form1() { InitializeComponent(); LoadConfigXml(); } private void LoadConfigXml() { XmlNodeReader reader = null; try { string eleName = ""; XmlDocument doc = new XmlDocument(); doc.Load("config.xml"); reader = new XmlNodeReader(doc); while (reader.Read()) { switch (reader.NodeType) { case XmlNodeType.Element: eleName = reader.Name; //MessageBox.Show("Name" + eleName); break; case XmlNodeType.Text: if (eleName.Equals("ip")) { ip = new string[1] { reader.Value }; } else if (eleName.Equals("submask")) { submask = new string[1] { reader.Value }; } else if (eleName.Equals("getway")) { getway = new string[1] { reader.Value }; } else if (eleName.Equals("dns1")) { dns = new string[2] { reader.Value, "" }; } else if (eleName.Equals("dns2")) { dns[1] = reader.Value; } //eleName = reader.Value; //MessageBox.Show("Value" + eleName); break; default: break; } } } catch { MessageBox.Show("load xml error."); } finally { if (reader != null) reader.Close(); } } private void bAutoIP_Click(object sender, EventArgs e) { try { EnableDHCP(); } catch { MessageBox.Show("EnableDHCP() error."); } } private void bSpecialIP_Click(object sender, EventArgs e) { try { //ip = new string[1]{"192.168.2.119"}; //submask = new string[1]{"255.255.255.0"}; //getway = new string[1] {"192.168.2.2"}; //dns = new string[2] { "211.68.71.4", "211.68.71.5" }; SetIPAddress(ip,submask ,getway ,dns); } catch { MessageBox.Show("Special IP transfer error."); } } ///

/// 设置DNS ///

/// public static void SetDNS(string[] dns) { SetIPAddress(null, null, null, dns); } ///

/// 设置网关 ///

/// public static void SetGetWay(string getway) { SetIPAddress(null, null, new string[] { getway }, null); } ///

/// 设置网关 ///

/// public static void SetGetWay(string[] getway) { SetIPAddress(null, null, getway, null); } ///

/// 设置IP地址和掩码 ///

/// /// public static void SetIPAddress(string ip, string submask) { SetIPAddress(new string[] { ip }, new string[] { submask }, null, null); } ///

/// 设置IP地址，掩码和网关 ///

/// /// /// public static void SetIPAddress(string ip, string submask, string getway) { SetIPAddress(new string[] { ip }, new string[] { submask }, new string[] { getway }, null); } ///

/// 设置IP地址，掩码，网关和DNS ///

/// /// /// /// 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) { if (!mo["Caption"].ToString().Equals("[00000012] Realtek RTL8168/8111 PCI-E Gigabit Ethernet NIC")) continue; else MessageBox.Show((string)mo["caption"]); //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); } } } ///

/// 启用DHCP服务器 ///

public static void EnableDHCP() { ManagementClass wmi = new ManagementClass("Win32_NetworkAdapterConfiguration"); ManagementObjectCollection moc = wmi.GetInstances(); foreach (ManagementObject mo in moc) { if (!mo["Caption"].ToString().Equals("[00000012] Realtek RTL8168/8111 PCI-E Gigabit Ethernet NIC")) continue; else MessageBox.Show((string)mo["caption"]); //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); } } ///

/// 判断是否IP地址格式 ///

/// /// 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; } } }