根据IP获取地理位置——Java实现

依赖第三方接口，根据IP获取地理位置，Java实现代码如下：
import com.google.gson.Gson;
import com.google.gson.internal.LinkedTreeMap;
import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
import java.net.URL;
import java.net.URLConnection;
import java.util.HashMap;

//根据IP获取国家省份城市
public class IPAnalyse {

public static void main(String[] args) throws IOException {
    String ip = "61.157.45.92";
    String add[] = getAddressByIP1(ip);
    System.out.println("国家："+ add[0] +"，省份："+ add[1] +"，城市："+add[2]);


}


public static String[] getAddressByIP1(String strIP) throws IOException {
    URL url = new URL("http://ip.taobao.com/service/getIpInfo.php?ip=" + strIP);
    URLConnection conn = url.openConnection();
    BufferedReader reader = new BufferedReader(new InputStreamReader(conn.getInputStream(), "UTF-8"));
    String line = null;
    StringBuilder result = new StringBuilder();
    while ((line = reader.readLine()) != null) {
        result.append(line);
    }
    reader.close();
    String res = result.toString();
    Gson gson = new Gson();
    HashMap kv = gson.fromJson(res, HashMap.class);
    LinkedTreeMap map = (LinkedTreeMap) kv.get("data");
    String[] location = new String[3];
    location[0] = "";   //国家
    location[1] = "";   //省份
    location[2] = "";   //市区
    if ((map != null) && (!map.isEmpty())) {
        location[0] = (String) map.get("country");
        location[1] = (String) map.get("region");
        location[2] = (String) map.get("city");
    }
    return location;
}

}