C#获取IP和整数IP方法

体验： http://tool.hovertree.com/info/ip/

代码如下：

using System;
using System.Text;
using System.Text.RegularExpressions;
using System.Web;

namespace HoverTree.HoverTreeFrame.HvtNet
{
public class HoverTreeIP
{
/// <summary>
/// 获取真实IP
/// </summary>
/// <returns></returns>
public static string GetHoverTreeIp()
{//http://tool.hovertree.com/info/ip/
string result = HttpContext.Current.Request.ServerVariables["HTTP_X_FORWARDED_FOR"];
if (null == result || result == String.Empty)
{
result = HttpContext.Current.Request.ServerVariables["REMOTE_ADDR"];
}
if (null == result || result == String.Empty)
{
result = HttpContext.Current.Request.UserHostAddress;
}
return result;
}

public static bool HvtIsIP(string ip)
{
return Regex.IsMatch(ip, @"^((23[0-3]|1d{2}|[1-9]d|[1-9]).)((25[0-5]|2[0-4]d|1?d{1,2}).){2}((25[0-5]|2[0-4]d|1?d{1,2}))$") ;
}

/// <summary>
/// 把IP地址转为整数 hovertree.com
/// </summary>
/// <param name="ip"></param>
/// <returns></returns>
public static long HvtIpToLong(string ip)
{
char[] separator = new char[] { '.' };
string[] items = ip.Split(separator);
return long.Parse(items[0]) << 24
| long.Parse(items[1]) << 16
| long.Parse(items[2]) << 8
| long.Parse(items[3]);
}

/// <summary>
/// 把整数转为IP 何问起
/// </summary>
/// <param name="ipLong"></param>
/// <returns></returns>
public static string HvtLongToIp(long ipLong)
{//http://hovertree.com/hvtart/bjae/cn5qrmxw.htm
StringBuilder sb = new StringBuilder();
sb.Append((ipLong >> 24) & 0xFF).Append(".");
sb.Append((ipLong >> 16) & 0xFF).Append(".");
sb.Append((ipLong >> 8) & 0xFF).Append(".");
sb.Append(ipLong & 0xFF);
return sb.ToString();
}
}

类的代码将发布在HoverTreeCMS项目中。

ASP.NET开源CMS http://www.cnblogs.com/sosoft/p/cms.html

开发技术文章收集 http://www.cnblogs.com/sosoft/p/kaifajishu.html