C# 程序——获得外网IP,MAC,本地IP,子网掩码实例

执行效果，“Go”获得外网IP,下边的textbox显示连接网站后返回的html代码！外网IP就是从中提取的。



主文件 GetIP.cs


using System;


using System.Collections.Generic;


using System.ComponentModel;


using System.Management;


using System.Windows.Forms;


using System.Net;


using System.IO;




namespace IPGet




...{


public partial class Form_IP : Form




...{


public Form_IP()




...{


InitializeComponent();


ManagementClass mc = new ManagementClass("Win32_NetworkAdapterConfiguration");


ManagementObjectCollection moc = mc.GetInstances();


foreach (ManagementObject mo in moc)




...{


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


continue;


this.textBoxMAC.Text +=" --- "+ mo["MACAddress"].ToString();




string[] addresses = (string[])mo["IPAddress"];


string[] subnets = (string[])mo["IPSubnet"];




// display IP Addresses


foreach (string sad in addresses)


this.textBoxLocalIP.Text += " --- " + sad + " ";




// display SubNets mask


foreach (string sub in subnets)


this.textBoxSub.Text += " --- " + sub + " ";


}


}




private string GetIP()




...{


Uri uri = new Uri("http://www.ciker.net/ip/index.asp");


HttpWebRequest req = (HttpWebRequest)WebRequest.Create(uri);


req.Method = "POST";


req.ContentType = "application/x-www-form-urlencoded";


req.ContentLength = 0;


req.CookieContainer = new System.Net.CookieContainer();


req.GetRequestStream().Write(new byte[0], 0, 0);


HttpWebResponse res = (HttpWebResponse)(req.GetResponse());


StreamReader rs = new StreamReader(res.GetResponseStream(), System.Text.Encoding.GetEncoding("GB2312"));


try




...{


string s = rs.ReadToEnd();


this.textBox.Text = s;


rs.Close();


req.Abort();


res.Close();


System.Text.RegularExpressions.Match m = System.Text.RegularExpressions.Regex.Match(s, @"您的IP：(?<IP>[0-9.]*)");


if (m.Success)




...{


return m.Groups["IP"].Value;


}


else




...{


return "没有连接上主机";


}


}


catch (Exception e)




...{


return "获取失败！";


}


}




private void buttonGo_Click(object sender, EventArgs e)




...{


this.textBoxIP.Text = GetIP();


}


}


}

附：窗口设计代码：


namespace IPGet




...{


partial class Form_IP




...{




/**//// <summary>


/// 必需的设计器变量。


/// </summary>


private System.ComponentModel.IContainer components = null;






/**//// <summary>


/// 清理所有正在使用的资源。


/// </summary>


/// <param name="disposing">如果应释放托管资源，为 true；否则为 false。</param>


protected override void Dispose(bool disposing)




...{


if (disposing && (components != null))




...{


components.Dispose();


}


base.Dispose(disposing);


}






Windows 窗体设计器生成的代码#region Windows 窗体设计器生成的代码






/**//// <summary>


/// 设计器支持所需的方法 - 不要


/// 使用代码编辑器修改此方法的内容。


/// </summary>


private void InitializeComponent()




...{


this.buttonGo = new System.Windows.Forms.Button();


this.textBoxIP = new System.Windows.Forms.TextBox();


this.label1 = new System.Windows.Forms.Label();


this.textBoxLocalIP = new System.Windows.Forms.TextBox();


this.label2 = new System.Windows.Forms.Label();


this.label3 = new System.Windows.Forms.Label();


this.label4 = new System.Windows.Forms.Label();


this.textBoxMAC = new System.Windows.Forms.TextBox();


this.textBoxSub = new System.Windows.Forms.TextBox();


this.textBox = new System.Windows.Forms.TextBox();


this.SuspendLayout();


//


// buttonGo


//


this.buttonGo.Location = new System.Drawing.Point(231, 4);


this.buttonGo.Name = "buttonGo";


this.buttonGo.Size = new System.Drawing.Size(75, 23);


this.buttonGo.TabIndex = 0;


this.buttonGo.Text = "GO";


this.buttonGo.UseVisualStyleBackColor = true;


this.buttonGo.Click += new System.EventHandler(this.buttonGo_Click);


//


// textBoxIP


//


this.textBoxIP.Location = new System.Drawing.Point(59, 6);


this.textBoxIP.Name = "textBoxIP";


this.textBoxIP.Size = new System.Drawing.Size(143, 21);


this.textBoxIP.TabIndex = 1;


//


// label1


//


this.label1.AutoSize = true;


this.label1.Location = new System.Drawing.Point(12, 40);


this.label1.Name = "label1";


this.label1.Size = new System.Drawing.Size(41, 12);


this.label1.TabIndex = 2;


this.label1.Text = "本地IP";


//


// textBoxLocalIP


//


this.textBoxLocalIP.Location = new System.Drawing.Point(59, 37);


this.textBoxLocalIP.Name = "textBoxLocalIP";


this.textBoxLocalIP.Size = new System.Drawing.Size(143, 21);


this.textBoxLocalIP.TabIndex = 3;


//


// label2


//


this.label2.AutoSize = true;


this.label2.Location = new System.Drawing.Point(12, 9);


this.label2.Name = "label2";


this.label2.Size = new System.Drawing.Size(41, 12);


this.label2.TabIndex = 2;


this.label2.Text = "外网IP";


//


// label3


//


this.label3.AutoSize = true;


this.label3.Location = new System.Drawing.Point(30, 102);


this.label3.Name = "label3";


this.label3.Size = new System.Drawing.Size(23, 12);


this.label3.TabIndex = 2;


this.label3.Text = "MAC";


//


// label4


//


this.label4.AutoSize = true;


this.label4.Location = new System.Drawing.Point(0, 71);


this.label4.Name = "label4";


this.label4.Size = new System.Drawing.Size(53, 12);


this.label4.TabIndex = 2;


this.label4.Text = "子网掩码";


//


// textBoxMAC


//


this.textBoxMAC.Location = new System.Drawing.Point(59, 99);


this.textBoxMAC.Name = "textBoxMAC";


this.textBoxMAC.Size = new System.Drawing.Size(143, 21);


this.textBoxMAC.TabIndex = 3;


//


// textBoxSub


//


this.textBoxSub.Location = new System.Drawing.Point(59, 68);


this.textBoxSub.Name = "textBoxSub";


this.textBoxSub.Size = new System.Drawing.Size(143, 21);


this.textBoxSub.TabIndex = 3;


//


// textBox


//


this.textBox.Location = new System.Drawing.Point(59, 152);


this.textBox.Multiline = true;


this.textBox.Name = "textBox";


this.textBox.Size = new System.Drawing.Size(436, 174);


this.textBox.TabIndex = 4;


//


// Form_IP


//


this.AutoScaleDimensions = new System.Drawing.SizeF(6F, 12F);


this.AutoScaleMode = System.Windows.Forms.AutoScaleMode.Font;


this.ClientSize = new System.Drawing.Size(521, 338);


this.Controls.Add(this.textBox);


this.Controls.Add(this.textBoxSub);


this.Controls.Add(this.textBoxMAC);


this.Controls.Add(this.textBoxLocalIP);


this.Controls.Add(this.label2);


this.Controls.Add(this.label4);


this.Controls.Add(this.label3);


this.Controls.Add(this.label1);


this.Controls.Add(this.textBoxIP);


this.Controls.Add(this.buttonGo);


this.Name = "Form_IP";


this.Text = "获取外网IP和本地IP和子网掩码";


this.ResumeLayout(false);


this.PerformLayout();




}




#endregion




private System.Windows.Forms.Button buttonGo;


private System.Windows.Forms.TextBox textBoxIP;


private System.Windows.Forms.Label label1;


private System.Windows.Forms.TextBox textBoxLocalIP;


private System.Windows.Forms.Label label2;


private System.Windows.Forms.Label label3;


private System.Windows.Forms.Label label4;


private System.Windows.Forms.TextBox textBoxMAC;


private System.Windows.Forms.TextBox textBoxSub;


private System.Windows.Forms.TextBox textBox;


}


}