java获取ip地址以及ip归属地工具类-Toy模板网

这篇具有很好参考价值的文章主要介绍了java获取ip地址以及ip归属地工具类。希望对大家有所帮助。如果存在错误或未考虑完全的地方，请大家不吝赐教，您也可以点击"举报违法"按钮提交疑问。

需要ip2region.db文件，可以前往github下载

public class IpUtil {

    private static DbSearcher searcher;

    private static Method method;

    public static String getIpAddress(HttpServletRequest request) {
        String ipAddress = request.getHeader("X-Real-IP");
        if (ipAddress == null || ipAddress.length() == 0 || "unknown".equalsIgnoreCase(ipAddress)) {
            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.getHeader("HTTP_CLIENT_IP");
        }
        if (ipAddress == null || ipAddress.length() == 0 || "unknown".equalsIgnoreCase(ipAddress)) {
            ipAddress = request.getHeader("HTTP_X_FORWARDED_FOR");
        }
        if (ipAddress == null || ipAddress.length() == 0 || "unknown".equalsIgnoreCase(ipAddress)) {
            ipAddress = request.getRemoteAddr();
            if ("127.0.0.1".equals(ipAddress) || "0:0:0:0:0:0:0:1".equals(ipAddress)) {
                //根据网卡取本机配置的IP
                InetAddress inet = null;
                try {
                    inet = InetAddress.getLocalHost();
                } catch (UnknownHostException e) {
                    log.error("getIpAddress exception:", e);
                }
                assert inet != null;
                ipAddress = inet.getHostAddress();
            }
        }
        return StringUtils.substringBefore(ipAddress, ",");
    }

    @PostConstruct
    private void initIp2regionResource() throws Exception {
        InputStream inputStream = new ClassPathResource("/ip/ip2region.db").getInputStream();
        byte[] dbBinStr = FileCopyUtils.copyToByteArray(inputStream);
        DbConfig dbConfig = new DbConfig();
        searcher = new DbSearcher(dbConfig, dbBinStr);
        method = searcher.getClass().getMethod("memorySearch", String.class);
    }

    public static String getIpSource(String ipAddress) {
        if (ipAddress == null || !Util.isIpAddress(ipAddress)) {
            log.error("Error: Invalid ip address");
            return "";
        }
        try {
            DataBlock dataBlock = (DataBlock) method.invoke(searcher, ipAddress);
            String ipInfo = dataBlock.getRegion();
            if (!StringUtils.isEmpty(ipInfo)) {
                ipInfo = ipInfo.replace("|0", "");
                ipInfo = ipInfo.replace("0|", "");
                return ipInfo;
            }
        } catch (Exception e) {
            log.error("getCityInfo exception:", e);
        }
        return "";
    }

    public static String getIpProvince(String ipSource) {
        if (StringUtils.isBlank(ipSource)) {
            return CommonConstant.UNKNOWN;
        }
        String[] strings = ipSource.split("\\|");
        if (strings.length > 1 && strings[1].endsWith("省")) {
            return StringUtils.substringBefore(strings[1], "省");
        }
        return strings[0];
    }

    public static UserAgent getUserAgent(HttpServletRequest request) {
        return UserAgent.parseUserAgentString(request.getHeader("User-Agent"));
    }