例1
代码如下 |
复制代码 |
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Net;
namespace CSharpTest
{
class Program
{
static void Main(string[] args)
{
Console.Write(new Program().GetHostInfo());
Console.ReadLine();
}
//获取本地IPd等信息
protected string GetHostInfo()
{
StringBuilder hostInfo = new StringBuilder("");
IPAddress[] ipHost = Dns.GetHostAddresses(Dns.GetHostName());
hostInfo.Append("本机名:");
hostInfo.Append(Dns.GetHostName());
hostInfo.Append("rn");
hostInfo.Append("IP 地址:");
hostInfo.Append("rn");
foreach (IPAddress address in ipHost)
{
hostInfo.Append(address.ToString());
hostInfo.Append("rn");
}
return hostInfo.ToString();
}
}
}
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控制台输出结果:
本机名:meteor-PC
IP 地址:
fe80::a1a2:949c:1a51:5e6c%11
2002:b46f:20fa::b46f:20fa
169.254.94.108
180.111.32.250
例2
代码如下 |
复制代码 |
public static IPAddress GetHostIP()
{
IPHostEntry ipe = Dns.GetHostEntry(Dns.GetHostName());
IPAddress ip = ipe.AddressList[0];
return ip;
}
private String GetIPAddress()
{
String str;
String Result = "";
String hostName = Dns.GetHostName();
IPAddress[] myIP = Dns.GetHostAddresses(hostName);
foreach (IPAddress address in myIP)
{
str = address.ToString();
for (int i = 0; i < str.Length; i++)
{
if (str[i] >= '0' && str[i] <= '9' || str[i] == '.') Result = str;
}
}
return Result;
}
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例3
上面的方法满足不了我的需求,然后我在Google搜了一些,并没有个很好的办法,于是自己摸索写下了这个方法。如果觉得有些地方欠妥的
代码如下 |
复制代码 |
///
/// 得到本机IP
///
private string GetLocalIP()
{
//本机IP地址
string strLocalIP = "";
//得到计算机名
string strPcName = Dns.GetHostName();
//得到本机IP地址数组
IPHostEntry ipEntry = Dns.GetHostEntry(strPcName);
//遍历数组
foreach(var IPadd in ipEntry.AddressList)
{
//判断当前字符串是否为正确IP地址
if (IsRightIP(IPadd.ToString()))
{
//得到本地IP地址
strLocalIP = IPadd.ToString();
//结束循环
break;
}
}
//返回本地IP地址
return strLocalIP;
}
?//得到网关地址
private string GetGateway()
{
//网关地址
string strGateway = "";
//获取所有网卡
NetworkInterface[] nics = NetworkInterface.GetAllNetworkInterfaces();
//遍历数组
foreach (var netWork in nics)
{
//单个网卡的IP对象
IPInterfaceProperties ip = netWork.GetIPProperties();
//获取该IP对象的网关
GatewayIPAddressInformationCollection gateways = ip.GatewayAddresses;
foreach(var gateWay in gateways)
{
//如果能够Ping通网关
if(IsPingIP(gateWay.Address.ToString()))
{
//得到网关地址
strGateway = gateWay.Address.ToString();
//跳出循环
break;
}
}
//如果已经得到网关地址
if (strGateway.Length > 0)
{
//跳出循环
break;
}
}
//返回网关地址
return strGateway;
}
?///
/// 判断是否为正确的IP地址
///
/// 需要判断的字符串
/// true = 是 false = 否
public static bool IsRightIP(string strIPadd)
{
//利用正则表达式判断字符串是否符合IPv4格式
if (Regex.IsMatch(strIPadd, "[0-9]{1,3}.[0-9]{1,3}.[0-9]{1,3}.[0-9]{1,3}"))
{
//根据小数点分拆字符串
string[] ips = strIPadd.Split('.');
if (ips.Length == 4 || ips.Length == 6)
{
//如果符合IPv4规则
if (System.Int32.Parse(ips[0]) < 256 && System.Int32.Parse(ips[1]) < 256 & System.Int32.Parse(ips[2]) < 256 & System.Int32.Parse(ips[3]) < 256)
//正确
return true;
//如果不符合
else
//错误
return false;
}
else
//错误
return false;
}
else
//错误
return false;
}
?///
/// 尝试Ping指定IP是否能够Ping通
///
/// 指定IP
/// true 是 false 否
public static bool IsPingIP(string strIP)
{
try
{
//创建Ping对象
Ping ping = new Ping();
//接受Ping返回值
PingReply reply = ping.Send(strIP, 1000);
//Ping通
return true;
}
catch
{
//Ping失败
return false;
}
}
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