亲测，复制到项目中，可以直接使用。
调用：
//获取当前公网IP 以及地址
Dictionary<string, string> LocationName = new Dictionary<string, string>();
LocationName = GetLocation();
///
/// 获取页面html
///
/// 请求的地址
/// 编码方式
///
public static string GetHtml(string url, string encoding)
{
string pageHtml = string.Empty;
try
{
using (WebClient MyWebClient = new WebClient())
{
Encoding encode = Encoding.GetEncoding(encoding);
MyWebClient.Headers.Add(“User-Agent”, “Mozilla/5.0 (Windows NT 10.0; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/68.0.3440.84 Safari/537.36”);
MyWebClient.Credentials = CredentialCache.DefaultCredentials;//获取或设置用于向Internet资源的请求进行身份验证的网络凭据
Byte[] pageData = MyWebClient.DownloadData(url); //从指定网站下载数据
pageHtml = encode.GetString(pageData);
}
}
catch (Exception e)
{
return “访问 " + url + " 失败，请检查网络配置”;
}
return pageHtml;
}
/// <summary>/// 从html中通过正则找到ipv4信息/// </summary>/// <param name="pageHtml"></param>/// <returns></returns>public static string GetGlobalIP(){string pageHtml = GetHtml("/static/customercare/yourip.asp", "gbk");//验证ipv4地址string reg = @"(?:(?:(25[0-5])|(2[0-4]\d)|((1\d{2})|([1-9]?\d)))\.){3}(?:(25[0-5])|(2[0-4]\d)|((1\d{2})|([1-9]?\d)))";string ip = "none";Match m = Regex.Match(pageHtml, reg);if (m.Success){ip = m.Value;}Console.WriteLine("公网ip："+ip);return ip;}/// <summary>/// 根据IP地址获取城市信息/// </summary>/// <returns></returns>public static Dictionary<string,string> GetLocation(){//string ip = "112.17.30.75";string ip = GetGlobalIP();string html = GetHtml("/iplookup.asp?ip=" + ip + "&action=2", "gb2312");//Console.WriteLine(html);string pre = "var ip_result = {\"ASN归属地\":\"";int pos = html.IndexOf(pre);html = html.Substring(pos + pre.Length);html = html.Substring(0, html.IndexOf('"'));Console.WriteLine(html);// 变为"浙江省杭州市 移动 "string []res = html.Split(new char[] { '省', '市', ' ' },StringSplitOptions.RemoveEmptyEntries);foreach(var s in res){Console.WriteLine(s);}var M = new Dictionary<string, string>();M["省"] = res[0];M["市"] = res[1];M["运营商"] = res[2];return M;}/// <summary>/// 获取本地IP地址/// </summary>/// <returns></returns>public static string GetIP(){string res = "";IPAddress[] addres = Dns.GetHostAddresses(Dns.GetHostName());foreach (var ip in addres){if (ip.AddressFamily == AddressFamily.InterNetwork){res += ip.ToString() + " ";}}Console.WriteLine(res);return res;}
————————————————
感谢原文博主提供的方法
原文链接：/jk_chen_acmer/article/details/109531611
