通过ip地址获取当前地理位置

2023-01-07 07:29:10

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":"\u4e2d\u56fd","province":"\u5317\u4eac","city":"\u5317\u4eac","district":"","isp":"\u7535\u4fe1","type":"\u673a\u623f","desc":"\u4e2d\u56fd\u4e07\u7f51\u673a\u623f\u7535\u4fe1"};

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":"\u4e2d\u56fd","province":"\u5317\u4eac","city":"\u5317\u4eac","district":"","isp":"\u7535\u4fe1","type":"\u673a\u623f","desc":"\u4e2d\u56fd\u4e07\u7f51\u673a\u623f\u7535\u4fe1"}

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：

<div>

        <asp:GridView ID="gvDetail" runat="server" CellPadding="" 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>

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 > )

                {

                    foreach (var ip in ips)

                    {

                        var rs = ;

                        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();

/// <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[].Value, )).ToString(); });

        }

/// <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 = ; i < data.Count; i++)

                {

                    buffer = encoding.GetBytes(data.Keys[i]);

                    if (i > )

                        ms.WriteByte(Convert.ToByte('&'));

                    ms.Write(buffer, , buffer.Length);

                    ms.WriteByte(Convert.ToByte('='));

                    buffer = encoding.GetBytes(HttpUtility.UrlEncode(data[i]));

                    ms.Write(buffer, , buffer.Length);

                }

                buffer = ms.ToArray();

            }

            request.ContentLength = buffer.Length;

            using (System.IO.Stream requestStream = request.GetRequestStream())

            {

                requestStream.Write(buffer, , 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：

http://www.jb51.net/article/33540.htm

码农公寓

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