using System; using System.Collections.Generic; using System.Linq; using System.Text; namespace LixinCommon {     /// <summary>     /// 淘宝IP地址库帮助类。     /// 提供查询ip地址信息功能。     /// 服务的主页:http://ip.taobao.com     /// 作者：lixin     /// 作者Email：lixin@lixin.me     /// 日期：2014年3月30日     /// 备注：为了保障服务正常运行，每个用户的访问频率需小于10qps。     /// </summary>     public class TaobaoIPHelper     {         /// <summary>         /// 查询ip信息         /// </summary>         /// <param name="ip"></param>         /// <returns></returns>         public static TaobaoIP GetIP(string ip)         {             System.Net.WebClient client = new System.Net.WebClient();             try             {                 string data = client.DownloadString("http://ip.taobao.com/service/getIpInfo.php?ip=" + ip);                 //当code==1时，表示失败                 if (data.IndexOf("\"code\":1") > -1)                 {                     return new TaobaoIP()                     {                         code = 1,                         errorMsg = data                     };                 }                 using (System.IO.MemoryStream mm = new System.IO.MemoryStream(Encoding.UTF8.GetBytes(data)))                 {                     System.Runtime.Serialization.Json.DataContractJsonSerializer myJson = new System.Runtime.Serialization.Json.DataContractJsonSerializer(typeof(TaobaoIP));                     TaobaoIP item = (TaobaoIP)myJson.ReadObject(mm);                     return item;                 }             }             catch (Exception ex)             {                 return new TaobaoIP()                 {                     code = 1,                     errorMsg = ex.Message,                     data = new TaobaoIP_Data() { }                 };             }         }         /// <summary>         /// 根据域名返回域名的ip信息         /// </summary>         /// <param name="domain"></param>         /// <returns></returns>         public static TaobaoIP[] GetDomain(string domain)         {             System.Net.IPAddress[] ips = System.Net.Dns.GetHostAddresses(domain);             TaobaoIP[] result = new TaobaoIP[ips.Length];             for (int i = 0, j = ips.Length; i < j; i++)             {                 result[i] = GetIP(ips[i].ToString());             }             return result;         }     }     public struct TaobaoIP     {         /// <summary>         /// 0：成功；1：失败         /// </summary>         public int code;         /// <summary>         /// ip响应信息         /// </summary>         public TaobaoIP_Data data;         /// <summary>         /// 错误信息         /// </summary>         [NonSerialized]         public string errorMsg;     }     public struct TaobaoIP_Data     {         /// <summary>         /// ip地址         /// </summary>         public string ip;         /// <summary>         /// 国家         /// </summary>         public string country;         /// <summary>         /// 区域         /// </summary>         public string area;         /// <summary>         /// 省份         /// </summary>         public string region;         /// <summary>         /// 城市         /// </summary>         public string city;         /// <summary>         /// 运营商         /// </summary>         public string isp;         public string country_id;         public string area_id;         public string region_id;         public string city_id;         public string county_id;         public string isp_id;     } }

TaobaoIP result1 = TaobaoIPHelper.GetIP("8.8.8.8");             if (result1.code == 0)             {                 Console.WriteLine(string.Format("调用成功。该ip的国家为{0},省份为{1},城市为{2},运营商为{3}"                     , result1.data.country, result1.data.region, result1.data.city, result1.data.isp)                     );             }             else             {                 Console.WriteLine("失败，原因为："+result1.errorMsg);             }             TaobaoIP[] result2 = TaobaoIPHelper.GetDomain("lixin.me");             foreach (TaobaoIP item in result2)             {                 if (item.code == 0)                 {                     Console.WriteLine(string.Format("调用成功。该ip的国家为{0},省份为{1},城市为{2},运营商为{3}"                     , item.data.country, item.data.region, item.data.city, item.data.isp)                     );                 }                 else                 {                     Console.WriteLine("失败，原因为：" + item.errorMsg);                 }             }