<dependencies>
    <dependency>
        <groupId>cn.hutool</groupId>
        <artifactId>hutool-all</artifactId>
        <version>5.4.2</version>
    </dependency>
    <dependency>
        <groupId>org.lionsoul</groupId>
        <artifactId>ip2region</artifactId>
        <version>2.7.0</version>
    </dependency>
   <dependency>
      <groupId>org.projectlombok</groupId>
      <artifactId>lombok</artifactId>
      <scope>provided</scope>
    </dependency>
</dependencies>

@Data
public class IpLocation implements Serializable {

    @ApiModelProperty("ip地址")
    private String ip;

    @ApiModelProperty("國家")
    private String country;

    @ApiModelProperty("省")
    private String province;

    @ApiModelProperty("省")
    private String city;

    @ApiModelProperty("服務(wù)商")
    private String isp;
}

@Slf4j
//@UtilityClass
public class IpUtils {

    /**
     * 字符常量0
     */
    private static final String ZERO="0";
    /**
     * 本級(jí)ip
     */
    private static final String LOCALHOST="127.0.0.1";

    /**
     * 獲取客戶端的IP地址
     */
    public static String getIpAddress(HttpServletRequest request) {
        String ipAddress = request.getHeader("X-Forwarded-For");
        if (ipAddress == null || ipAddress.length() == 0 || "unknown".equalsIgnoreCase(ipAddress)) {
            ipAddress = request.getHeader("Proxy-Client-IP");
        }
        if (ipAddress == null || ipAddress.length() == 0 || "unknown".equalsIgnoreCase(ipAddress)) {
            ipAddress = request.getHeader("WL-Proxy-Client-IP");
        }
        if (ipAddress == null || ipAddress.length() == 0 || "unknown".equalsIgnoreCase(ipAddress)) {
            ipAddress = request.getRemoteAddr();
            if (LOCALHOST.equals(ipAddress)) {
                // 根據(jù)網(wǎng)卡取本機(jī)配置的IP
                InetAddress inet = null;
                try {
                    inet = InetAddress.getLocalHost();
                    ipAddress = inet.getHostAddress();
                } catch (UnknownHostException e) {
                    e.printStackTrace();
                }
            }
        }
        // 對(duì)于通過多個(gè)代理轉(zhuǎn)發(fā)的情況，取第一個(gè)非unknown的IP地址。
        // 這里假設(shè)第一個(gè)IP為真實(shí)IP，后面的為代理IP。
        if (ipAddress != null && ipAddress.length() > 15) {
            if (ipAddress.indexOf(",") > 0) {
                ipAddress = ipAddress.substring(0, ipAddress.indexOf(","));
            }
        }
        return ipAddress;
    }

    /**
     * 根據(jù)iP獲取歸屬地信息
     * @return
     */
    public static IpLocation getLocation(String ip) {
        IpLocation location = new IpLocation();
        location.setIp(ip);
        try (InputStream inputStream = IpUtils.class.getResourceAsStream("/ip2region.xdb");) {
            byte[] bytes = IoUtil.readBytes(inputStream);
            Searcher searcher = Searcher.newWithBuffer(bytes);
            String region = searcher.search(ip);
            if (StrUtil.isAllNotBlank(region)) {
                // xdb返回格式 國家|區(qū)域|省份|城市|ISP，
                // 只有中國的數(shù)據(jù)絕大部分精確到了城市，其他國家部分?jǐn)?shù)據(jù)只能定位到國家，后前的選項(xiàng)全部是0
                String[] result = region.split("\\|");
                location.setCountry(ZERO.equals(result[0])?StrUtil.EMPTY:result[0]);
                location.setProvince(ZERO.equals(result[2])?StrUtil.EMPTY:result[2]);
                location.setCity(ZERO.equals(result[3])?StrUtil.EMPTY:result[3]);
                location.setIsp(ZERO.equals(result[4])?StrUtil.EMPTY:result[4]);
            }
            searcher.close();
        } catch (Exception e) {
            log.error("ip地址解析異常,error:{}",e);
            return location;
        }
        return location;
    }
}