C# 获取本地IP地址以及MAC地址

1、通过主机名获取局域网IP地址；
try
{
IPHostEntry ipHostEntry = Dns.GetHostEntry(txtHost.Text);//传递计算机名
if (ipHostEntry.Aliases.Length > 0)
{
foreach (string alias in ipHostEntry.Aliases)
txtIP.Text = alias;
}
//获取IP地址
foreach (IPAddress addr in ipHostEntry.AddressList)
txtIPAddress.Text = addr.ToString();//获取IP地址
}
catch
{
MessageBox.Show("错误的主机名。");
}
2、通过局域网IP地址获取主机名；
try
{
IPHostEntry ipHostEntry = Dns.GetHostByAddress(txtIP.Text); ;//传递IP地址
txtHostName.Text = ipHostEntry.HostName.ToString()//取得主机名
}
catch
{
MessageBox.Show("错误的IP地址。");
}
3、通过局域网IP地址获取Mac地址
public static string ReadMac(string ip)//传递IP地址,即可返回MAC地址
{
string mac = "";
System.Diagnostics.Process p = new System.Diagnostics.Process();
p.StartInfo.FileName = "nbtstat";
p.StartInfo.Arguments = "-a " + ip;
p.StartInfo.UseShellExecute = false;
p.StartInfo.CreateNoWindow = true;
p.StartInfo.RedirectStandardOutput = true;
p.Start();
string output = p.StandardOutput.ReadToEnd();
int len = output.IndexOf("MAC Address = ");
if(len>0)
{
mac = output.Substring(len + 14, 17);
}
p.WaitForExit();
return mac;

}

C#获取本地计算机名,IP,MAC地址

using System;

using System.Drawing;

using System.Management;

using System.net;

using System.Net.Sockets;

using System.Collections;

using System.ComponentModel;

using System.Windows.Forms;

using System.Data;

namespace MAC_IP_name

{

/// <summary>

/// Form1 的摘要说明。

/// </summary>

public class Form1 : System.Windows.Forms.Form

{

private System.Windows.Forms.Label label4;

private System.Windows.Forms.GrouPBox groupBox1;

private System.Windows.Forms.TextBox txtMac;

private System.Windows.Forms.TextBox txtIp;

private System.Windows.Forms.TextBox txtName;

private System.Windows.Forms.Label lblMac;

private System.Windows.Forms.Label lblIp;

private System.Windows.Forms.Label lblName;

private System.Windows.Forms.Button button1;

private System.Windows.Forms.Button button2;

/// <summary>

/// 必需的设计器变量。

/// </summary>

private System.ComponentModel.Container components = null;

public Form1()

{

//

// Windows 窗体设计器支持所必需的

//

InitializeComponent();

//

// TODO: 在 InitializeComponent 调用后添加任何构造函数代码

//

}

/// <summary>

/// 清理所有正在使用的资源。

/// </summary>

protected override void Dispose( bool disposing )

{

if( disposing )

{

if (components != null)

{

components.Dispose();

}

}

base.Dispose( disposing );

}

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

this.groupBox1 = new System.Windows.Forms.GroupBox();

this.button2 = new System.Windows.Forms.Button();

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

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

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

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

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

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

this.button1 = new System.Windows.Forms.Button();

this.groupBox1.SuspendLayout();

this.SuspendLayout();

//

// label4

//

this.label4.AutoSize = true;

this.label4.Font = new System.Drawing.Font("楷体_GB2312", 15F, System.Drawing.FontStyle.Bold, System.Drawing.GraphicsUnit.Point, ((System.Byte)(134)));

this.label4.ForeColor = System.Drawing.Color.FromArgb(((System.Byte)(255)), ((System.Byte)(128)), ((System.Byte)(128)));

this.label4.Location = new System.Drawing.Point(49, 16);

this.label4.Name = "label4";

this.label4.Size = new System.Drawing.Size(245, 26);

this.label4.TabIndex = 7;

this.label4.Text = "获取本机计算机名IP与MAC";

//

// groupBox1

//

this.groupBox1.Controls.Add(this.button2);

this.groupBox1.Controls.Add(this.txtMac);

this.groupBox1.Controls.Add(this.txtIp);

this.groupBox1.Controls.Add(this.txtName);

this.groupBox1.Controls.Add(this.lblMac);

this.groupBox1.Controls.Add(this.lblIp);

this.groupBox1.Controls.Add(this.lblName);

this.groupBox1.Controls.Add(this.button1);

this.groupBox1.Location = new System.Drawing.Point(16, 56);

this.groupBox1.Name = "groupBox1";

this.groupBox1.Size = new System.Drawing.Size(320, 208);

this.groupBox1.TabIndex = 11;

this.groupBox1.TabStop = false;

this.groupBox1.Text = "获取区";

//

// button2

//

this.button2.Font = new System.Drawing.Font("宋体", 9F, System.Drawing.FontStyle.Bold, System.Drawing.GraphicsUnit.Point, ((System.Byte)(134)));

this.button2.Location = new System.Drawing.Point(184, 160);

this.button2.Name = "button2";

this.button2.Size = new System.Drawing.Size(88, 32);

this.button2.TabIndex = 18;

this.button2.Text = "退出";

this.button2.Click += new System.EventHandler(this.button2_Click);

//

// txtMac

//

this.txtMac.BackColor = System.Drawing.Color.FromArgb(((System.Byte)(224)), ((System.Byte)(224)), ((System.Byte)(224)));

this.txtMac.Font = new System.Drawing.Font("宋体", 9F, System.Drawing.FontStyle.Bold, System.Drawing.GraphicsUnit.Point, ((System.Byte)(134)));

this.txtMac.ForeColor = System.Drawing.Color.FromArgb(((System.Byte)(255)), ((System.Byte)(128)), ((System.Byte)(0)));

this.txtMac.Location = new System.Drawing.Point(128, 110);

this.txtMac.Name = "txtMac";

this.txtMac.ReadOnly = true;

this.txtMac.Size = new System.Drawing.Size(168, 21);

this.txtMac.TabIndex = 17;

this.txtMac.Text = "";

//

// txtIp

//

this.txtIp.BackColor = System.Drawing.Color.FromArgb(((System.Byte)(224)), ((System.Byte)(224)), ((System.Byte)(224)));

this.txtIp.Font = new System.Drawing.Font("宋体", 9F, System.Drawing.FontStyle.Bold, System.Drawing.GraphicsUnit.Point, ((System.Byte)(134)));

this.txtIp.ForeColor = System.Drawing.Color.FromArgb(((System.Byte)(255)), ((System.Byte)(128)), ((System.Byte)(0)));

this.txtIp.Location = new System.Drawing.Point(128, 70);

this.txtIp.Name = "txtIp";

this.txtIp.ReadOnly = true;

this.txtIp.Size = new System.Drawing.Size(168, 21);

this.txtIp.TabIndex = 16;

this.txtIp.Text = "";

//

// txtName

//

this.txtName.BackColor = System.Drawing.Color.FromArgb(((System.Byte)(224)), ((System.Byte)(224)), ((System.Byte)(224)));

this.txtName.Font = new System.Drawing.Font("宋体", 9F, System.Drawing.FontStyle.Bold, System.Drawing.GraphicsUnit.Point, ((System.Byte)(134)));

this.txtName.ForeColor = System.Drawing.Color.FromArgb(((System.Byte)(255)), ((System.Byte)(128)), ((System.Byte)(0)));

this.txtName.Location = new System.Drawing.Point(128, 30);

this.txtName.Name = "txtName";

this.txtName.ReadOnly = true;

this.txtName.Size = new System.Drawing.Size(168, 21);

this.txtName.TabIndex = 15;

this.txtName.Text = "";

//

// lblMac

//

this.lblMac.AutoSize = true;

this.lblMac.Font = new System.Drawing.Font("宋体", 12F, System.Drawing.FontStyle.Bold, System.Drawing.GraphicsUnit.Point, ((System.Byte)(134)));

this.lblMac.ForeColor = System.Drawing.Color.FromArgb(((System.Byte)(0)), ((System.Byte)(0)), ((System.Byte)(64)));

this.lblMac.Location = new System.Drawing.Point(32, 112);

this.lblMac.Name = "lblMac";

this.lblMac.Size = new System.Drawing.Size(88, 22);

this.lblMac.TabIndex = 14;

this.lblMac.Text = "MAC地址为:";

//

// lblIp

//

this.lblIp.AutoSize = true;

this.lblIp.Font = new System.Drawing.Font("宋体", 12F, System.Drawing.FontStyle.Bold, System.Drawing.GraphicsUnit.Point, ((System.Byte)(134)));

this.lblIp.ForeColor = System.Drawing.Color.FromArgb(((System.Byte)(0)), ((System.Byte)(0)), ((System.Byte)(64)));

this.lblIp.Location = new System.Drawing.Point(40, 72);

this.lblIp.Name = "lblIp";

this.lblIp.Size = new System.Drawing.Size(80, 22);

this.lblIp.TabIndex = 13;

this.lblIp.Text = "IP地址为:";

//

// lblName

//

this.lblName.AutoSize = true;

this.lblName.Font = new System.Drawing.Font("宋体", 12F, System.Drawing.FontStyle.Bold, System.Drawing.GraphicsUnit.Point, ((System.Byte)(134)));

this.lblName.ForeColor = System.Drawing.Color.FromArgb(((System.Byte)(0)), ((System.Byte)(0)), ((System.Byte)(64)));

this.lblName.Location = new System.Drawing.Point(24, 32);

this.lblName.Name = "lblName";

this.lblName.Size = new System.Drawing.Size(97, 22);

this.lblName.TabIndex = 12;

this.lblName.Text = "计算机名为:";

//

// button1

//

this.button1.Font = new System.Drawing.Font("宋体", 9F, System.Drawing.FontStyle.Bold, System.Drawing.GraphicsUnit.Point, ((System.Byte)(134)));

this.button1.Location = new System.Drawing.Point(48, 160);

this.button1.Name = "button1";

this.button1.Size = new System.Drawing.Size(88, 32);

this.button1.TabIndex = 11;

this.button1.Text = "点击获取";

this.button1.Click += new System.EventHandler(this.button1_Click_1);

//

// Form1

//

this.AutoScaleBaseSize = new System.Drawing.Size(6, 14);

this.ClientSize = new System.Drawing.Size(352, 285);

this.Controls.Add(this.groupBox1);

this.Controls.Add(this.label4);

this.FormBorderStyle = System.Windows.Forms.FormBorderStyle.Fixed3D;

this.MaximizeBox = false;

this.Name = "Form1";

this.StartPosition = System.Windows.Forms.FormStartPosition.CenterScreen;

this.Text = "IP,计算机名,MAC查询";

this.groupBox1.ResumeLayout(false);

this.ResumeLayout(false);

}

#endregion

/// <summary>

/// 应用程序的主入口点。

/// </summary>

[STAThread]

static void Main()

{

Application.Run(new Form1());

}

private void button1_Click_1(object sender, System.EventArgs e)

{

string s="",mac="";

//

//name

//

string hostInfo = Dns.GetHostName();

//

//IP

System.Net.IPAddress[] addressList = Dns.GetHostByName(Dns.GetHostName()).AddressList;

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

{

s += addressList[i].ToString();

}

//

//mac

//

ManagementClass mc;

mc=new ManagementClass("Win32_NetworkAdapterConfiguration");

ManagementObjectCollection moc=mc.GetInstances();

foreach(ManagementObject mo in moc)

{

if(mo["IPEnabled"].ToString()=="True")

mac=mo["MacAddress"].ToString();

}

txtName.Text=hostInfo;

txtIp.Text=s;

txtMac.Text=mac;

button1.Enabled=false;

button2.Focus();

}

private void button2_Click(object sender, System.EventArgs e)

{

Application.Exit();

}

}

}