C#获取IP和整数IP方法
体验： http://tool.hovertree.com/info/ip/
代码如下：
1 using System; 2 using System.Text; 3 using System.Text.RegularExpressions; 4 using System.Web; 5 6 namespace HoverTree.HoverTreeFrame.HvtNet 7 { 8 public class HoverTreeIP 9 { 10 /// <summary> 11 /// 获取真实IP 12 /// </summary> 13 /// <returns></returns> 14 public static string GetHoverTreeIp() 15 {//http://tool.hovertree.com/info/ip/ 16 string result = HttpContext.Current.Request.ServerVariables["HTTP_X_FORWARDED_FOR"]; 17 if (null == result || result == String.Empty) 18 { 19 result = HttpContext.Current.Request.ServerVariables["REMOTE_ADDR"]; 20 } 21 if (null == result || result == String.Empty) 22 { 23 result = HttpContext.Current.Request.UserHostAddress; 24 } 25 return result; 26 } 27 28 public static bool HvtIsIP(string ip) 29 { 30 return Regex.IsMatch(ip, @"^((23[0-3]|1\d{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}))$") ; 31 } 32 33 /// <summary> 34 /// 把IP地址转为整数 hovertree.com 35 /// </summary> 36 /// <param name="ip"></param> 37 /// <returns></returns> 38 public static long HvtIpToLong(string ip) 39 { 40 char[] separator = new char[] { '.' }; 41 string[] items = ip.Split(separator); 42 return long.Parse(items[0]) << 24 43 | long.Parse(items[1]) << 16 44 | long.Parse(items[2]) << 8 45 | long.Parse(items[3]); 46 } 47 48 /// <summary> 49 /// 把整数转为IP 何问起 50 /// </summary> 51 /// <param name="ipLong"></param> 52 /// <returns></returns> 53 public static string HvtLongToIp(long ipLong) 54 {//http://hovertree.com/hvtart/bjae/cn5qrmxw.htm 55 StringBuilder sb = new StringBuilder(); 56 sb.Append((ipLong >> 24) & 0xFF).Append("."); 57 sb.Append((ipLong >> 16) & 0xFF).Append("."); 58 sb.Append((ipLong >> 8) & 0xFF).Append("."); 59 sb.Append(ipLong & 0xFF); 60 return sb.ToString(); 61 } 62 }
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
