如何获得IP地址

Question

我想问一下在winfrom中怎样获取本地的IP地址！！！怎样做？？

Answer 1

 /// <summary>
        /// 获取访问者IP
        /// </summary>
        /// <returns>IP地址</returns>
        public static string getIPAddress()
        {            if (System.Web.HttpContext.Current.Request.ServerVariables["HTTP_VIA"] != null)
                return System.Web.HttpContext.Current.Request.ServerVariables["HTTP_X_FORWARDED_FOR"].Split(new char[] { ',' })[0];
            else
                return System.Web.HttpContext.Current.Request.ServerVariables["REMOTE_ADDR"];        }

Answer 2

using System;
using System.Drawing;
using System.Collections;
using System.ComponentModel;
using System.Windows.Forms;
using System.Data;
using System.Net;
namespace Network
{
/// <summary>
/// Form1 的摘要说明。
/// </summary>
public class Form1 : System.Windows.Forms.Form
{
private System.Windows.Forms.Label label1;
private System.Windows.Forms.TextBox textBox1;
private System.Windows.Forms.Label label2;
private System.Windows.Forms.TextBox textBox2;
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.label1 = new System.Windows.Forms.Label();
this.textBox1 = new System.Windows.Forms.TextBox();
this.label2 = new System.Windows.Forms.Label();
this.textBox2 = new System.Windows.Forms.TextBox();
this.button1 = new System.Windows.Forms.Button();
this.button2 = new System.Windows.Forms.Button();
this.SuspendLayout();
// 
// label1
// 
this.label1.Location = new System.Drawing.Point(32, 32);
this.label1.Name = "label1";
this.label1.Size = new System.Drawing.Size(56, 16);
this.label1.TabIndex = 0;
this.label1.Text = "主机名：";
// 
// textBox1
// 
this.textBox1.Location = new System.Drawing.Point(96, 24);
this.textBox1.Name = "textBox1";
this.textBox1.Size = new System.Drawing.Size(192, 21);
this.textBox1.TabIndex = 1;
this.textBox1.Text = "";
// 
// label2
// 
this.label2.Location = new System.Drawing.Point(32, 64);
this.label2.Name = "label2";
this.label2.Size = new System.Drawing.Size(56, 16);
this.label2.TabIndex = 2;
this.label2.Text = "IP地址：";
// 
// textBox2
// 
this.textBox2.BackColor = System.Drawing.SystemColors.ActiveCaptionText;
this.textBox2.Location = new System.Drawing.Point(96, 56);
this.textBox2.Name = "textBox2";
this.textBox2.Size = new System.Drawing.Size(192, 21);
this.textBox2.TabIndex = 3;
this.textBox2.Text = "";
// 
// button1
// 
this.button1.Location = new System.Drawing.Point(64, 96);
this.button1.Name = "button1";
this.button1.TabIndex = 4;
this.button1.Text = "获取";
this.button1.Click += new System.EventHandler(this.button1_Click);
// 
// button2
// 
this.button2.Location = new System.Drawing.Point(184, 96);
this.button2.Name = "button2";
this.button2.TabIndex = 5;
this.button2.Text = "关闭";
this.button2.Click += new System.EventHandler(this.button2_Click);
// 
// Form1
// 
this.AutoScaleBaseSize = new System.Drawing.Size(6, 14);
this.ClientSize = new System.Drawing.Size(328, 142);
this.Controls.Add(this.button2);
this.Controls.Add(this.button1);
this.Controls.Add(this.textBox2);
this.Controls.Add(this.label2);
this.Controls.Add(this.textBox1);
this.Controls.Add(this.label1);
this.MaximizeBox = false;
this.Name = "Form1";
this.StartPosition = System.Windows.Forms.FormStartPosition.CenterScreen;
this.Text = "演示获取主机名和IP地址";
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 button2_Click(object sender, System.EventArgs e)
{//关闭程序
this.Close();
}
private void button1_Click(object sender, System.EventArgs e)
{//获取本机IP地址
   string HostName=Dns.GetHostName();
   this.textBox1.Text=HostName;
   IPHostEntry MyEntry=Dns.GetHostByName(Dns.GetHostName());
   IPAddress MyAddress=new IPAddress(MyEntry.AddressList[0].Address);
this.textBox2.Text=MyAddress.ToString();
}
}
}

Answer 3

                          IPHostEntry   IPHost   =   Dns.Resolve(args[0]);   
                       Console.WriteLine("HostName:   "   +   IPHost.HostName);   
                            
                          string   []aliases   =   IPHost.Aliases;   
                          Console.WriteLine("Count   of   host   aliases:   "   +   aliases.Length);   
                          for(int   i=   0;   i   <   aliases.Length   ;   i++)   
                          {   
                                  Console.WriteLine(aliases[i]);   
                          }   
      
                          IPAddress[]   addr   =   IPHost.AddressList;   
                          Console.WriteLine("Count   of   host   addresses:   "   +   addr.Length);   
                          Console.WriteLine("Host   IP   list:   ");   
                          for(int   i=   0;   i   <   addr.Length   ;   i++)   
                          {   
                                  Console.WriteLine(addr[i]);   
                          }   

Answer 4

            System.Net.IPAddress[] _IpList = System.Net.Dns.GetHostAddresses(System.Net.Dns.GetHostName());
            

Answer 5

粘贴既能用。
        private void GetHostIP(ref string host, ref string ip)
        {
            host = Dns.GetHostName();
            IPHostEntry ipEntry = Dns.GetHostByName(host);
            ip = ipEntry.AddressList[0].ToString();
        }

Answer 6

            host = Dns.GetHostName();
            IPHostEntry ipEntry = Dns.GetHostByName(host);
            ip = ipEntry.AddressList[0].ToString();