<dependency>

   <groupId>org.lionsoul</groupId>

   <artifactId>ip2region</artifactId>

   <version>1.7</version>

</dependency>

import org.lionsoul.ip2region.DataBlock;

import org.lionsoul.ip2region.DbConfig;

import org.lionsoul.ip2region.DbSearcher;

public class Ip2Region {

    public static void main(String[] args) throws Exception {

        // ip

        String ip = "121.33.59.18";

        // 判断是否为IP地址 (可用)

        //boolean isIpAddress = Util.isIpAddress(ip);

        // ip和long互转 (可用)

        // long ipLong = Util.ip2long(ip);

        // String strIp = Util.long2ip(ipLong);

        // 根据ip进行位置信息搜索

        DbConfig config = new DbConfig();

        // 获取ip库的位置（放在src下）（直接通过测试类获取文件Ip2RegionTest为测试类）

        String dbfile = Ip2Region.class.getResource("/ip2region.db").getPath();   //获取src/java/resources路径下ip2region.db文件地址

        DbSearcher searcher = new DbSearcher(config, dbfile);

        // 采用Btree搜索

        DataBlock block = searcher.btreeSearch(ip);

        // 打印位置信息（格式：国家|大区|省份|城市|运营商）

        System.out.println(block.getRegion());

    }

}

<dependency>

   <groupId>org.lionsoul</groupId>

   <artifactId>ip2region</artifactId>

   <version>1.7</version>

</dependency>

import org.junit.Test

import org.lionsoul.ip2region.{DataBlock, DbConfig, DbSearcher}

class IPTest {

  /**

    * IP -> Region, City

    */

  @Test

  def ip2Region(): Unit = {

    val searcher = new DbSearcher(new DbConfig(), "dataset/ip2region.db")

    val region = searcher.btreeSearch("121.33.59.18").getRegion

    println(region)

  }

}