java geoip 根据ip查询国家

1.引入mavenjar包

 <dependency>
        <groupId>com.maxmind.geoip2</groupId>
        <artifactId>geoip2</artifactId>
        <version>2.3.0</version>
    </dependency>
	
	<dependency>
        <groupId>com.maxmind.db</groupId>
        <artifactId>maxmind-db</artifactId>
        <version>1.0.0</version>
</dependency>

2.下载数据库文件、解压

https://geolite.maxmind.com/download/geoip/database/GeoLite2-City.tar.gz

3.写java代码

    package com.example.demo;

import java.io.File;
import java.net.InetAddress;

import com.maxmind.geoip2.DatabaseReader;
import com.maxmind.geoip2.model.CityResponse;
import com.maxmind.geoip2.record.City;
import com.maxmind.geoip2.record.Country;
import com.maxmind.geoip2.record.Location;
import com.maxmind.geoip2.record.Subdivision;

public class GenIpUtils {

	public static void main(String[] args) throws Exception {
        String ip = "199.201.64.4";
        GenIpUtils.getCityByIP(ip);
	}
	
	
	
	public static void getCityByIP(String ip) throws Exception{
		  // 创建 GeoLite2 数据库     
	      File database = new File("F:\\GeoLite2-City.mmdb");     
	      // 读取数据库内容   
	      DatabaseReader reader = new DatabaseReader.Builder(database).build();       
	      InetAddress ipAddress = InetAddress.getByName(ip);     

	      // 获取查询结果      
	      CityResponse response = reader.city(ipAddress);     
	      
	      // 获取国家信息
	      Country country = response.getCountry();
	      System.out.println("国家code:"+country.getIsoCode());
	      System.out.println("国家:"+country.getNames().get("zh-CN"));
	      
	      // 获取省份
	      Subdivision subdivision = response.getMostSpecificSubdivision();
	      System.out.println("省份code:"+subdivision.getIsoCode());
	      System.out.println("省份:"+subdivision.getNames().get("zh-CN"));
	      
	      //城市
	      City city = response.getCity();
	      System.out.println("城市code:"+city.getGeoNameId());
	      System.out.println("城市:"+city.getName());

	      // 获取城市
	      Location location = response.getLocation();
	      System.out.println("经度:"+location.getLatitude()); 
	      System.out.println("维度:"+location.getLongitude());
	}
	}