1、 使用接口的方式:
这种方式是相对稳定,而且提供的数据相对稳定,提供接口的地方很多,大家可以参照
http://www.hujuntao.com/api/the-ip-address-api-and-call-the-interface-method.html
不一一讲解,只讲解一下新浪提供的接口:
新浪接口地址:http://int.dpool.sina.com.cn/iplookup/iplookup.php
参数有两个:format和ip
1) IP:不传入ip值时默认为本机ip,也可以指定特定的ip地址;
2) format:返回给客户端的数据格式有js和json格式:
a、 返回js格式:
eg:http://int.dpool.sina.com.cn/iplookup/iplookup.php?format=js&ip=115.29.28.108
返回结果:var remote_ip_info = {"ret":1,"start":"115.28.0.0","end":"115.29.255.255","country":"u4e2du56fd","province":"u5317u4eac","city":"u5317u4eac","district":"","isp":"u7535u4fe1","type":"u673au623f","desc":"u4e2du56fdu4e07u7f51u673au623fu7535u4fe1"};
返回的结果给一个js变量,变量值为json格式,可以自己将Unicode字符转码为中文:
var remote_ip_info = {"ret":1,"start":"115.28.0.0","end":"115.29.255.255","country":"中国","province":"北京","city":"北京","district":"","isp":"电信","type":"机房","desc":"中国万网机房电信"};
b、 返回json格式:
eg:http://int.dpool.sina.com.cn/iplookup/iplookup.php?format=json&ip=115.29.28.108
返回结果:
{"ret":1,"start":"115.28.0.0","end":"115.29.255.255","country":"u4e2du56fd","province":"u5317u4eac","city":"u5317u4eac","district":"","isp":"u7535u4fe1","type":"u673au623f","desc":"u4e2du56fdu4e07u7f51u673au623fu7535u4fe1"}
返回的结果直接是一个json格式的字符串,可以自己将Unicode字符转码为中文:
{"ret":1,"start":"115.28.0.0","end":"115.29.255.255","country":"中国","province":"北京","city":"北京","district":"","isp":"电信","type":"机房","desc":"中国万网机房电信"}
代码示例:
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<div> <asp:GridView ID="gvDetail" runat="server" CellPadding="4" ForeColor="#333333" GridLines="None" Width="100%" AutoGenerateColumns="false"> <AlternatingRowStyle BackColor="White" /> <EditRowStyle BackColor="#2461BF" /> <FooterStyle BackColor="#507CD1" Font-Bold="True" ForeColor="White" /> <HeaderStyle BackColor="#507CD1" Font-Bold="True" ForeColor="White" /> <PagerStyle BackColor="#2461BF" ForeColor="White" HorizontalAlign="Center" /> <RowStyle BackColor="#EFF3FB" /> <SelectedRowStyle BackColor="#D1DDF1" Font-Bold="True" ForeColor="#333333" /> <SortedAscendingCellStyle BackColor="#F5F7FB" /> <SortedAscendingHeaderStyle BackColor="#6D95E1" /> <SortedDescendingCellStyle BackColor="#E9EBEF" /> <SortedDescendingHeaderStyle BackColor="#4870BE" /> <Columns> <asp:TemplateField HeaderText="IP地址"> <ItemTemplate> <div style=" text-align:center"><%#Eval("IP")%></div> </ItemTemplate> </asp:TemplateField> <asp:TemplateField HeaderText="国家"> <ItemTemplate> <div style=" text-align:center"><%#Eval("Country")%></div> </ItemTemplate> </asp:TemplateField> <asp:TemplateField HeaderText="省会"> <ItemTemplate> <div style=" text-align:center"><%#Eval("Province")%></div> </ItemTemplate> </asp:TemplateField> <asp:TemplateField HeaderText="城市"> <ItemTemplate> <div style=" text-align:center"><%#Eval("City")%></div> </ItemTemplate> </asp:TemplateField> <asp:TemplateField HeaderText="地区"> <ItemTemplate> <div style=" text-align:center"><%#Eval("District")%></div> </ItemTemplate> </asp:TemplateField> <asp:TemplateField HeaderText="运营商"> <ItemTemplate> <div style=" text-align:center"><%#Eval("Isp")%></div> </ItemTemplate> </asp:TemplateField> <asp:TemplateField HeaderText="类型"> <ItemTemplate> <div style=" text-align:center"><%#Eval("Type")%></div> </ItemTemplate> </asp:TemplateField> <asp:TemplateField HeaderText="描述"> <ItemTemplate> <div style=" text-align:center"><%#Eval("Desc")%></div> </ItemTemplate> </asp:TemplateField> </Columns> </asp:GridView> </div>
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var ips = new List<string>(); ips.Add("101.36.93.107"); ips.Add("106.117.102.99"); ips.Add("111.206.170.45"); ips.Add("114.86.246.202"); ips.Add("116.55.250.58"); ips.Add("182.108.206.70"); ips.Add("36.250.249.232"); var list = new List<IPDetail>(); if (ips != null && ips.Count > 0) { foreach (var ip in ips) { var rs = 0; NameValueCollection vc = new NameValueCollection(); vc.Add("format", "json"); vc.Add("ip", ip); string result = WebUtils.PostDataToUrl(postUrl, Encoding.UTF8, vc); result = ConvertUnicode2Chinese(result); if (!Int32.TryParse(result, out rs)) { JObject obj = (JObject)JsonConvert.DeserializeObject(result); if (obj != null) { var ipd = new IPDetail(); ipd.IP = ip; ipd.Country = obj["country"].ToString(); ipd.Province = obj["province"].ToString(); ipd.City = obj["city"].ToString(); ipd.District = obj["district"].ToString(); ipd.Isp = obj["isp"].ToString(); ipd.Type = obj["type"].ToString(); ipd.Desc = obj["desc"].ToString(); list.Add(ipd); } } } } gvDetail.DataSource = list; gvDetail.DataBind();
![](https://images.cnblogs.com/OutliningIndicators/ContractedBlock.gif)
/// <summary> /// 将Unicode编码转换成中文 /// </summary> /// <param name="result"></param> /// <returns></returns> private string ConvertUnicode2Chinese(string result) { Regex reg = new Regex(@"(?i)\[uU]([0-9a-f]{4})"); return reg.Replace(result, delegate(Match m) { return ((char)Convert.ToInt32(m.Groups[1].Value, 16)).ToString(); }); }
![](https://images.cnblogs.com/OutliningIndicators/ContractedBlock.gif)
/// <summary> /// POST数据到指定地址 /// </summary> /// <param name="url"></param> /// <param name="encoding"></param> /// <param name="data"></param> /// <returns></returns> public static string PostDataToUrl(string url, System.Text.Encoding encoding, System.Collections.Specialized.NameValueCollection data) { //设置HttpWebRequest System.Net.HttpWebRequest request = (System.Net.HttpWebRequest)System.Net.HttpWebRequest.Create(new Uri(url)); request.UserAgent = "Mozilla/4.0 (compatible; MSIE 7.0; Windows NT 5.2; .NET CLR 1.1.4322; .NET CLR 2.0.50727)"; request.ContentType = "application/x-www-form-urlencoded"; request.Method = "POST"; request.KeepAlive = false; byte[] buffer; using (System.IO.MemoryStream ms = new System.IO.MemoryStream()) { for (int i = 0; i < data.Count; i++) { buffer = encoding.GetBytes(data.Keys[i]); if (i > 0) ms.WriteByte(Convert.ToByte('&')); ms.Write(buffer, 0, buffer.Length); ms.WriteByte(Convert.ToByte('=')); buffer = encoding.GetBytes(HttpUtility.UrlEncode(data[i])); ms.Write(buffer, 0, buffer.Length); } buffer = ms.ToArray(); } request.ContentLength = buffer.Length; using (System.IO.Stream requestStream = request.GetRequestStream()) { requestStream.Write(buffer, 0, buffer.Length); requestStream.Close(); } try { //获取数据 using (System.Net.HttpWebResponse response = (System.Net.HttpWebResponse)(request.GetResponse())) using (System.IO.Stream stream = response.GetResponseStream()) using (System.IO.StreamReader reader = new System.IO.StreamReader(stream, encoding)) { string result = reader.ReadToEnd(); reader.Close(); stream.Close(); response.Close(); return result; } } finally { request.Abort(); } }
运行效果:
2、 直接请求网页:
这种方式很不建议使用,从网页生扒html信息,很不稳定,一旦别人的网页模板或者样式一旦改变,自己的代码也要跟着改变,很头痛的,一般都不建议采用这种方式,能够找到接口的最好用别人提供的api,下面提供一个地址让有兴趣的人去研究一下: