Java实现通过IP计算分析归属地实例分享

import cn.hutool.core.net.Ipv4Util;
import cn.hutool.core.util.StrUtil;
import java.math.BigInteger;
import java.net.InetAddress;

public class IpCalculate {
    public static void main(String[] args) throws Exception {
        // IPv4 网段
        String ipv4Network = "IPv4 网段";
        String[] ipv4Param = StrUtil.splitToArray(ipv4Network, "/");

        // IPv4 起始和结束IP
        String ipv4StartIp = Ipv4Util.getBeginIpStr(ipv4Param[0],Integer.parseInt(ipv4Param[1]));
        String ipv4OverIp = Ipv4Util.getEndIpStr(ipv4Param[0],Integer.parseInt(ipv4Param[1]));
        System.out.println(ipv4StartIp);
        System.out.println(ipv4OverIp);

        // IPv4 起始和结束IP对应的Long值
        System.out.println(Ipv4Util.ipv4ToLong(ipv4StartIp));
        System.out.println(Ipv4Util.ipv4ToLong(ipv4OverIp));

        // IPv6 网段
        String ipv6Network = "IPv6 网段";
        String[] ipv6Param =ipv6Network.split("/");
        int prefixLength = Integer.parseInt(ipv6Param[1]);

        // IPv6 起始和结束IP
        InetAddress baseAddress = InetAddress.getByName(ipv6Param[0]);
        BigInteger baseValue = new BigInteger(1, baseAddress.getAddress());
        BigInteger mask = BigInteger.ONE.shiftLeft(128).subtract(BigInteger.ONE)
                .shiftRight(128 - prefixLength).shiftLeft(128 - prefixLength);
        BigInteger minIp = baseValue.and(mask);
        BigInteger maxIp = minIp.add(BigInteger.ONE.shiftLeft(128 - prefixLength).subtract(BigInteger.ONE));
        System.out.println(toIPv6String(minIp));
        System.out.println(toIPv6String(maxIp));

        // IPv6 起始和结束IP对应的Long值
        System.out.println(minIp);
        System.out.println(maxIp);
    }

    private static String toIPv6String(BigInteger value) throws Exception {
        byte[] bytes = value.toByteArray();
        byte[] ipv6Bytes = new byte[16];
        int start = bytes.length > 16 ? bytes.length - 16 : 0;
        int length = Math.min(bytes.length, 16);
        System.arraycopy(bytes, start, ipv6Bytes, 16 - length, length);
        return InetAddress.getByAddress(ipv6Bytes).getHostAddress();
    }
}

<dependency>
  <groupId>com.maxmind.geoip2groupId>
  <artifactId>geoip2</artifactId>
</dependency>

import com.maxmind.geoip2.DatabaseReader;
import java.io.File;
import java.net.Inet4Address;
import java.net.Inet6Address;
import java.net.InetAddress;

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

        // 读取IP库文件
        File ipFile = new File("IP文件库");
        DatabaseReader reader = new DatabaseReader.Builder(ipFile).build();

        // IPV4地址
        InetAddress ipV4 = InetAddress.getByName("IPV4");
        if (ipV4 instanceof Inet4Address){
            System.out.println(reader.country(ipV4));
            System.out.println(reader.country(ipV4).getCountry());
            // 默认英文名
            System.out.println(reader.country(ipV4).getCountry().getName());
            // 查询中文名
            System.out.println(reader.country(ipV4).getCountry().getNames().get("zh-CN"));
        }

        // IPV6地址
        InetAddress ipV6 = InetAddress.getByName("IPV6");
        if (ipV6 instanceof Inet6Address){
            System.out.println(reader.country(ipV6));
            System.out.println(reader.country(ipV6).getCountry());
            // 默认英文名
            System.out.println(reader.country(ipV6).getCountry().getName());
            // 查询中文名
            System.out.println(reader.country(ipV6).getCountry().getNames().get("zh-CN"));
        }
    }
}

CREATE TABLE `ip_place` (
  `id` bigint(20) NOT NULL AUTO_INCREMENT,
  `network` varchar(100) DEFAULT NULL COMMENT '网段区间',
  `min_ip` bigint(20) DEFAULT NULL COMMENT '最小IP',
  `max_ip` bigint(20) DEFAULT NULL COMMENT '最大IP',
  `min_ip_number` bigint(20) DEFAULT NULL COMMENT '最小IP数值',
  `max_ip_number` bigint(20) DEFAULT NULL COMMENT '最大IP数值',
  `ip_place` varchar(100) DEFAULT NULL COMMENT '归属地',
  PRIMARY KEY (`id`)
) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COMMENT='IP归属地';