用淘宝ip地址库查ip

这是一个通过调用淘宝ip地址库实现ip地址查询的功能类

  1 using System;
  2 using System.Collections.Generic;
  3 using System.Linq;
  4 using System.Text;
  5 
  6 namespace LixinCommon
  7 {
  8     /// <summary>
  9     /// 淘宝IP地址库帮助类。
 10     /// 提供查询ip地址信息功能。
 11     /// 服务的主页:http://ip.taobao.com
 12     /// 作者：lixin
 13     /// 作者Email：lixin@lixin.me
 14     /// 日期：2014年3月30日
 15     /// 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。
 16     /// </summary>
 17     public class TaobaoIPHelper
 18     {
 19         /// <summary>
 20         /// 查询ip信息
 21         /// </summary>
 22         /// <param name="ip"></param>
 23         /// <returns></returns>
 24         public static TaobaoIP GetIP(string ip)
 25         {
 26             System.Net.WebClient client = new System.Net.WebClient();
 27             try
 28             {
 29                 string data = client.DownloadString("http://ip.taobao.com/service/getIpInfo.php?ip=" + ip);
 30                 //当code==1时，表示失败
 31                 if (data.IndexOf(""code":1") > -1)
 32                 {
 33                     return new TaobaoIP()
 34                     {
 35                         code = 1,
 36                         errorMsg = data
 37                     };
 38                 }
 39                 using (System.IO.MemoryStream mm = new System.IO.MemoryStream(Encoding.UTF8.GetBytes(data)))
 40                 {
 41                     System.Runtime.Serialization.Json.DataContractJsonSerializer myJson = new System.Runtime.Serialization.Json.DataContractJsonSerializer(typeof(TaobaoIP));
 42                     TaobaoIP item = (TaobaoIP)myJson.ReadObject(mm);
 43 
 44                     return item;
 45                 }
 46             }
 47             catch (Exception ex)
 48             {
 49                 return new TaobaoIP()
 50                 {
 51                     code = 1,
 52                     errorMsg = ex.Message,
 53                     data = new TaobaoIP_Data() { }
 54                 };
 55             }
 56         }
 57         /// <summary>
 58         /// 根据域名返回域名的ip信息
 59         /// </summary>
 60         /// <param name="domain"></param>
 61         /// <returns></returns>
 62         public static TaobaoIP[] GetDomain(string domain)
 63         {
 64             System.Net.IPAddress[] ips = System.Net.Dns.GetHostAddresses(domain);
 65             TaobaoIP[] result = new TaobaoIP[ips.Length];
 66             for (int i = 0, j = ips.Length; i < j; i++)
 67             {
 68                 result[i] = GetIP(ips[i].ToString());
 69             }
 70             return result;
 71         }
 72     }
 73     public struct TaobaoIP
 74     {
 75         /// <summary>
 76         /// 0：成功；1：失败
 77         /// </summary>
 78         public int code;
 79         /// <summary>
 80         /// ip响应信息
 81         /// </summary>
 82         public TaobaoIP_Data data;
 83         /// <summary>
 84         /// 错误信息
 85         /// </summary>
 86         [NonSerialized]
 87         public string errorMsg;
 88     }
 89     public struct TaobaoIP_Data
 90     {
 91         /// <summary>
 92         /// ip地址
 93         /// </summary>
 94         public string ip;
 95         /// <summary>
 96         /// 国家
 97         /// </summary>
 98         public string country;
 99         /// <summary>
100         /// 区域
101         /// </summary>
102         public string area;
103         /// <summary>
104         /// 省份
105         /// </summary>
106         public string region;
107         /// <summary>
108         /// 城市
109         /// </summary>
110         public string city;
111         /// <summary>
112         /// 运营商
113         /// </summary>
114         public string isp;
115         public string country_id;
116         public string area_id;
117         public string region_id;
118         public string city_id;
119         public string county_id;
120         public string isp_id;
121     }
122 }

用法很简单，示例代码如下：

 1 TaobaoIP result1 = TaobaoIPHelper.GetIP("8.8.8.8");
 2 if (result1.code == 0)
 3 {
 4     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}"
 5         , result1.data.country, result1.data.region, result1.data.city, result1.data.isp)
 6         );
 7 }
 8 else
 9 {
10     Console.WriteLine("失败，原因为："+result1.errorMsg);
11 }
12 TaobaoIP[] result2 = TaobaoIPHelper.GetDomain("lixin.me");
13 foreach (TaobaoIP item in result2)
14 {
15     if (item.code == 0)
16     {
17         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}"
18         , item.data.country, item.data.region, item.data.city, item.data.isp)
19         );
20     }
21     else
22     {
23         Console.WriteLine("失败，原因为：" + item.errorMsg);
24     }
25 }