根据IP获取地理位置

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<String, Object> 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;

    }

}