C#获取外网IP、本机MAC地址及Ping的实现

saundy

　　原文 获取外网IP, C#获取本机的MAC地址，C#通过编程方式实现Ping  

获取外网IP地址
　　思路是通过WebRequest连接一些网上提供IP查询服务的网站，下载到含有你的IP的网页，然后用正则表达式提取出IP来



class Program  
{  
static void Main(string[] args)  
{  
Console.WriteLine(GetExportIP());  
Console.ReadKey();  
}  
public static string GetExportIP()   
{  
//获取外部IP  
string strUrl = "http://www.ip.cn/getip.php?action=getip&ip_url=&from=web";  
//string strUrl = "http://216.157.85.151/getip.php?action=getip&ip_url=&from=web";  
Uri uri = new Uri(strUrl);  
WebRequest webreq = WebRequest.Create(uri);  
Stream s = webreq.GetResponse().GetResponseStream();  
StreamReader sr = new StreamReader(s, Encoding.Default);  
string all = sr.ReadToEnd();  
all = Regex.Replace(all,@"(\d+)","000$1");  
all = Regex.Replace(all, @"0+(\d{3})", "$1");  
string reg = @"(\d{3}\.\d{3}\.\d{3}\.\d{3})";  
Regex regex = new Regex(reg);  
Match match = regex.Match(all);  
string ip = match.Groups[1].Value;  
return Regex.Replace(ip,@"0*(\d+)","$1");  
}  
}  
获取本机MAC



using System;  
using System.Collections.Generic;  
using System.Linq;  
using System.Text;  
using System.Management;  
namespace _17获取MAC地址  
{  
class Program  
{  
static void Main(string[] args)  
{  
ManagementObjectSearcher nisc = new ManagementObjectSearcher("select * from Win32_NetworkAdapterConfiguration");  
foreach (ManagementObject nic in nisc.Get())   
{  
if (Convert.ToBoolean(nic["ipEnabled"]) == true)   
{  
Console.WriteLine("{0} - {1}", nic["ServiceName"], nic["MACAddress"]);  
}  
}  
Console.ReadKey();  
}  
}  
}  
Ping
　　废话少说，具体代码如下：





using System;  
using System.Collections.Generic;  
using System.Linq;  
using System.Text;  
using System.Net.NetworkInformation;  
namespace _20通过编程方式实现Ping  
{  
class Program  
{  
static void Main(string[] args)  
{  
Ping ping = new Ping();  
PingOptions pingOpt = new PingOptions();  
pingOpt.DontFragment = true;//是否设置分段数据  
string myInfo = "Hello, world！";  
byte[] bufferInfo = Encoding.ASCII.GetBytes(myInfo);  
int timeOut = 1200;  
string ipTarget = "192.168.1.102";  
PingReply pingReply = ping.Send(ipTarget, timeOut, bufferInfo);  
if (pingReply.Status == IPStatus.Success)  
{  
Console.WriteLine("耗费时间 - {0}\n路由节点数 - {1}\n数据分段 - {2}\n缓冲区大小 - {3}", pingReply.RoundtripTime, //耗费时间  
pingReply.Options.Ttl, //路由节点数  
pingReply.Options.DontFragment ? "发生分段" : "没有发生分段",//数据分段  
pingReply.Buffer.Length//缓冲区大小  
                                     );  
}  
else   
{  
Console.WriteLine("无法ping通");  
}  

Console.ReadKey();  
}  
}  
}  
C# 实现ping的功能