Java를 사용하여 CMS 시스템의 사이트 위치 기능을 구현하는 방법

<dependency>
  <groupId>javax.servlet</groupId>
  <artifactId>javax.servlet-api</artifactId>
  <version>3.0.1</version>
</dependency>

<dependency>
  <groupId>org.apache.httpcomponents</groupId>
  <artifactId>httpclient</artifactId>
  <version>4.5.13</version>
</dependency>

<dependency>
  <groupId>com.google.code.gson</groupId>
  <artifactId>gson</artifactId>
  <version>2.8.6</version>
</dependency>

import org.apache.http.client.methods.HttpGet;
import org.apache.http.impl.client.CloseableHttpClient;
import org.apache.http.impl.client.HttpClients;
import org.apache.http.util.EntityUtils;
import com.google.gson.Gson;

public class LocationService {
  private static final String IP_API_URL = "http://ip-api.com/json/";

  public Location getLocationByIpAddress(String ipAddress) {
    try (CloseableHttpClient httpClient = HttpClients.createDefault()) {
      HttpGet request = new HttpGet(IP_API_URL + ipAddress);
      String response = EntityUtils.toString(httpClient.execute(request).getEntity());
      Gson gson = new Gson();
      Location location = gson.fromJson(response, Location.class);
      return location;
    } catch (Exception e) {
      e.printStackTrace();
    }
    return null;
  }
}

public class Location {
  private String countryCode;
  private String countryName;
  private String region;
  private String city;
  private String zipCode;

  // getter and setter methods

  @Override
  public String toString() {
    return "Location{" +
           "countryCode='" + countryCode + ''' +
           ", countryName='" + countryName + ''' +
           ", region='" + region + ''' +
           ", city='" + city + ''' +
           ", zipCode='" + zipCode + ''' +
           '}';
  }
}

public class CmsService {
  private LocationService locationService = new LocationService();

  public void showContentByIpAddress(String ipAddress) {
    Location location = locationService.getLocationByIpAddress(ipAddress);
    System.out.println("IP: " + ipAddress);
    System.out.println("Location: " + location);
    // 根据地理位置展示不同的内容
    if (location != null && "CN".equals(location.getCountryCode())) {
      System.out.println("Welcome to China!");
    } else {
      System.out.println("Welcome to other countries!");
    }
  }
}

public class Main {
  public static void main(String[] args) {
    CmsService cmsService = new CmsService();
    cmsService.showContentByIpAddress("192.168.0.1");
  }
}