asp.net根据ip获得城市地址
Solution 1：
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#region 通过IP得到IP所在地省市
///
/// 通过IP得到IP所在地省市（Porschev）
///
///Ip地址
///
protected string GetAdrByIp(string ip) {
try
{
string url = "http://www.ip138.com/ips1388.asp?ip=" + ip + "&action=2"; string regStr = "(?<=.*：).*(?=\\s.*)"; string html = GetHtml(url);
//得到网页源码
Regex reg = new Regex(regStr, RegexOptions.None);
Match ma = reg.Match(html);
return ma.Value.Substring(ma.Value.IndexOf("省") + 1).Trim();
}
catch
{
return "";
}
}
#endregion #region 获取HTML源码信息
///
/// 获取HTML源码信息(Porschev)
///
///获取地址
///HTML源码
protected string GetHtml(string url) {
string _value = "";
HttpWebRequest req;
HttpWebResponse res;
Stream ReceiveStream;
StreamReader sr;
req = (HttpWebRequest)WebRequest.Create(url);
req.Method = "GET";
req.KeepAlive = false;
req.Referer = url;
req.UserAgent = "Mozilla/5.0 (compatible; MSIE 10.0; Windows NT 6.1; WOW64; Trident/6.0)";
res = req.GetResponse() as HttpWebResponse;
ReceiveStream = res.GetResponseStream();
sr = new StreamReader(ReceiveStream, Encoding.GetEncoding("GB2312"));
_value = HttpUtility.UrlDecode(sr.ReadToEnd());
sr.Close();
ReceiveStream.Close();
res.Close();
return _value;
}
#endregion
Tips 1：
///
/// 获取用户ip地址,避免ip代理
///
/// 用户ip地址
public string GetIp() {
string result = String.Empty;
result = HttpContext.Current.Request.ServerVariables["HTTP_X_FORWARDED_FOR"]; if (string.IsNullOrEmpty(result))
{
result = HttpContext.Current.Request.ServerVariables["REMOTE_ADDR"]; }
if (string.IsNullOrEmpty(result))
{
result = HttpContext.Current.Request.UserHostAddress;
}
return result;
}
网站题目：asp.net根据ip获得城市地址
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