package Sy;

import com.google.gson.Gson;

import java.io.IOException;
import java.net.URI;
import java.net.http.HttpClient;
import java.net.http.HttpRequest;
import java.net.http.HttpResponse;

public class Sy4 {
 public static String getIp() throws IOException, InterruptedException {
 String url = "http://api.rest7.com/v1/my_ip.php";
 HttpClient client = HttpClient.newHttpClient();
 HttpRequest request = HttpRequest.newBuilder()
 .uri(URI.create(url))
 .build();

 HttpResponse<String> response = client.send(request, HttpResponse.BodyHandlers.ofString());
 String res = response.body();
 // res = ["39.129.167.21"]
 // ip = 39.129.167.21
 String ip = res.substring(2, res.length()-2);
 return ip;
 }

 public static CityInfo getCityInfoByIp(String ip) throws IOException, InterruptedException {
 String url = "http://api.rest7.com/v1/ip_to_city.php?ip=" + ip;
 HttpClient client = HttpClient.newHttpClient();
 HttpRequest request = HttpRequest.newBuilder()
 .uri(URI.create(url))
 .build();

 HttpResponse<String> response = client.send(request, HttpResponse.BodyHandlers.ofString());
 String json = response.body();
 // json 字符串转为 CityInfo 对象
 Gson gson = new Gson();
 CityInfo cityInfo = gson.fromJson(json, CityInfo.class);
 return cityInfo;
 }

 public static void main(String[] args) throws IOException, InterruptedException {
 String ip = getIp();
 System.out.println(ip);
 System.out.println("获取城市信息");
 CityInfo cityInfo = getCityInfoByIp("106.61.3.222");
 System.out.println("国家:" + cityInfo.getCountry());
 System.out.println("省:" + cityInfo.getRegion());
 System.out.println("城市:" + cityInfo.getCity());
 System.out.println("经度:" + cityInfo.getLng());
 System.out.println("纬度:" + cityInfo.getLat());
 }
}