C# 根据ip获取城市等相关信息

复制代码 代码如下:

///


/// 得到真实IP以及所在地详细信息(Porschev)

///


///

public string GetIpDetails()

{

//设置获取IP地址和国家源码的网址

string url = "http://www.ip138.com/ips8.asp";

string regStr = "(?<=)[^<]*?(?=


)";

//IP正则

string ipRegStr = "((2[0-4]\d|25[0-5]|[01]?\d\d?)\.){3}(2[0-4]\d|25[0-5]|[01]?\d\d?)";

//IP地址

string ip = string.Empty;

//国家

string country = string.Empty;

//省市

string adr = string.Empty;

//得到网页源码

string html = GetHtml(url);

Regex reg = new Regex(regStr, RegexOptions.None);

Match ma = reg.Match(html); html = ma.Value;

Regex ipReg = new Regex(ipRegStr, RegexOptions.None);

ma = ipReg.Match(html);

//得到IP

ip = ma.Value;

int index = html.LastIndexOf(":") + 1;

//得到国家

country = html.Substring(index);

adr = GetAdrByIp(ip);

return "IP:" + ip + " 国家:" + country + " 省市:" + adr;

}

///


/// 通过IP得到IP所在地省市(Porschev)

///


///

///

public string GetAdrByIp(string ip)

{

string url = "http://www.cz88.net/ip/?ip=" + ip;

string regStr = "(?<=).*?(?=)";

//得到网页源码

string html = GetHtml(url);

Regex reg = new Regex(regStr, RegexOptions.None);

Match ma = reg.Match(html);

html = ma.Value;

string[] arr = html.Split(' ');

return arr[0];

}


复制代码 代码如下:

///


/// 获取HTML源码信息(Porschev)

///


/// 获取地址

/// HTML源码

public string GetHtml(string url)

{

string str = "";

try

{

Uri uri = new Uri(url);

WebRequest wr = WebRequest.Create(uri);

Stream s = wr.GetResponse().GetResponseStream();

StreamReader sr = new StreamReader(s, Encoding.Default);

str = sr.ReadToEnd();

}

catch (Exception e)

{

}

return str;

}

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