Java 里做 GeoIP 查询

<!-- https://mvnrepository.com/artifact/com.maxmind.geoip2/geoip2 -->
        <dependency>
            <groupId>com.maxmind.geoip2</groupId>
            <artifactId>geoip2</artifactId>
            <version>2.16.1</version>
        </dependency>

// 创建 DatabaseReader 实例
File database = new File(ipAddrFile);
DatabaseReader dbReader = new DatabaseReader.Builder(database).withCache(new CHMCache()).build();
// 解析 IP 地址
//String ipAddress = "1.178.63.255"; // 使用实际IP地址替换这个占位符
InetAddress inetAddress = InetAddress.getByName(sysAccess.getIpAddr());

// 获取对应 IP 的地理位置信息
CountryResponse response = dbReader.country(inetAddress);

Country country = response.getCountry();