/// <summary>
/// 根据IP定位获得城市代码
/// </summary>
/// <returns></returns>
public static string getCodeByIP()
{
//根据IP地址获取用户所在城市
string wUrl = "http://int.dpool.sina.com.cn/iplookup/iplookup.php?format=js&ip";
HttpWebRequest mRequest = (HttpWebRequest)HttpWebRequest.Create(wUrl);
HttpWebResponse mResponse = (HttpWebResponse)mRequest.GetResponse();
mRequest.ContentType = "text/html";
mRequest.Method = "Get";
Stream Streams = mResponse.GetResponseStream();
StreamReader mReader = new StreamReader(Streams, Encoding.UTF8);
String mResult = mReader.ReadToEnd();
mReader.Dispose();
Streams.Dispose();
mResponse.Close();
//处理返回的json
mResult = mResult.Substring(mResult.IndexOf("=") + 1, mResult.Length - mResult.IndexOf("=") - 2);
//解析结果获得城市名
DataContractJsonSerializer Serializer = new DataContractJsonSerializer(typeof(IP2Geo));
MemoryStream Stream = new MemoryStream(Encoding.Unicode.GetBytes(mResult));
IP2Geo Ip = (IP2Geo)Serializer.ReadObject(Stream);
//根据城市名获得城市代码
Xml4DB.XmlDB mDB = Xml4DB.XmlDBFactory.LoadXmlDB(Environment.CurrentDirectory.ToString() + "\\Config\\City.xml");
List <object> mCitys = mDB.ReadByObject(new CityStructure(Ip.city, null));
return(((CityStructure)mCitys[0]).CityCode);
}
private void findButton_Click(object sender, EventArgs e)
{
if (textBox.SelectedText != "")
{ // check if a lat-lon was selected:
string[] ss = textBox.SelectedText.Split(" ".ToCharArray());
if (ss.Length == 2)
{
if ((Double.Parse(ss[0]) != 0) && (Double.Parse(ss[1]) != 0))
{
ipCombo.Text = textBox.SelectedText;
}
}
}
string lat = "", lon = "";
textBox.Text = "";
textBox.Enabled = false;
// chop copy&paste blanks:
while (ipCombo.Text.StartsWith(" "))
ipCombo.Text = ipCombo.Text.Remove(0, 1);
//check for ip or hostname
string ip = findIp(ipCombo.Text);
if (ip != null)
{
// check free lookup first
string ll = getlatlon(ip);
if (ll != null && ll != " ")
{
string[] ss = ll.Split(" ".ToCharArray());
if (ss.Length == 2)
{
if ((Double.Parse(ss[0]) != 0) && (Double.Parse(ss[1]) != 0))
{
lat = ss[0];
lon = ss[1];
}
textBox.Enabled = true;
}
}
if ( lat=="" && lon=="" )
{
// restricted to 40 shots a day.
IP2Geo geo = new IP2Geo();
IPInformation res = null;
try
{ // find latlon from ip or hostname:
res = geo.ResolveIP(ip, "0"); // 0 is the limited testkey.
if (res == null) return;
if (res.Longitude == 0 && res.Latitude == 0)
{
textBox.Text = res.Organization; // please wait or get a key ...
return;
}
textBox.Enabled = true;
textBox.Text = res.City + " (" + res.Country + ")\r\n" +
"latlon:" + res.Latitude + " " + res.Longitude + "\r\n" +
"ip:" + ip;
lat = "" + res.Latitude;
lon = "" + res.Longitude;
textBox.Text += "\r\n(fetched from http://ws.cdyne.com)\r\n";
}
catch (Exception ex) { textBox.Text += "\r\n\r\n" + ex.Message; return; }
}
//textBox.Text += "\r\n--- whois " + ip + "\r\n";
//textBox.Text += whois("whois.internic.com", ip); ;
}
// check for latlon in input:
if (lat == "" && lon == "")
{
string[] ss = ipCombo.Text.Split(" ".ToCharArray());
if (ss.Length == 2)
{
if ((Double.Parse(ss[0]) != 0) && (Double.Parse(ss[1]) != 0))
{
lat = ss[0];
lon = ss[1];
}
}
}
// still not found?! check osm for place names :
if (lat == "" && lon == "")
{
MapControl.SearchProvider search = new MapControl.SearchProvider();
search.SearchCompleted += new EventHandler(osmSearchCompleted);
if (search.Search(ipCombo.Text))
{
textBox.Enabled = false;
}
}
if (lat != "" && lon != "")
{
getMap(lat, lon);
}
if (!this.ipCombo.Items.Contains(this.ipCombo.Text))
this.ipCombo.Items.Add(this.ipCombo.Text);
}