Java 通过请求获取ip,并解析ip获取所在ip位置

“拿来"的同时也要学会"分享”

前言

本博文主要介绍如何通过前端请求获取用户的ip,再通过调用第三方的api,获取数据data,分析数据,获取想要的ip所属国家/区域/城市,以及经纬度等等.目前博主所使用的api属于免费的,查看其他博主的博客,阿里/百度/新浪的都使用了下,均无法使用,不知道是不是因为收费问题,然后找到一个免费的api

https://extreme-ip-lookup.com/

注:本博文只用作学习用途

获取util的工具类借鉴博主:

https://www.cnblogs.com/niunafei/p/13596122.html

根据请求获取ip的util

import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.util.StringUtils;

import javax.servlet.http.HttpServletRequest;
import java.net.InetAddress;
import java.net.UnknownHostException;

/**
 */
public class IpUtil {
    private static Logger logger = LoggerFactory.getLogger(IpUtil.class);
    private static final String IP_UTILS_FLAG = ",";
    private static final String UNKNOWN = "unknown";
    private static final String LOCALHOST_IP = "0:0:0:0:0:0:0:1";
    private static final String LOCALHOST_IP1 = "127.0.0.1";

    /**
     * 获取ip地址
     * 使用Nginx等反向代理软件， 则不能通过request.getRemoteAddr()获取IP地址
     * 如果使用了多级反向代理的话，X-Forwarded-For的值并不止一个，而是一串IP地址，X-Forwarded-For中第一个非unknown的有效IP字符串，则为真实IP地址
     */

    public static String getIpAddr(HttpServletRequest request) {
        String ip = null;
        try {
            //以下两个获取在k8s中，将真实的客户端IP，放到了x-Original-Forwarded-For。而将WAF的回源地址放到了 x-Forwarded-For了。
            ip = request.getHeader("X-Original-Forwarded-For");
            if (StringUtils.isEmpty(ip) || UNKNOWN.equalsIgnoreCase(ip)) {
                ip = request.getHeader("X-Forwarded-For");
            }
            //获取nginx等代理的ip
            if (StringUtils.isEmpty(ip) || UNKNOWN.equalsIgnoreCase(ip)) {
                ip = request.getHeader("x-forwarded-for");
            }
            if (StringUtils.isEmpty(ip) || UNKNOWN.equalsIgnoreCase(ip)) {
                ip = request.getHeader("Proxy-Client-IP");
            }
            if (StringUtils.isEmpty(ip) || ip.length() == 0 || UNKNOWN.equalsIgnoreCase(ip)) {
                ip = request.getHeader("WL-Proxy-Client-IP");
            }
            if (StringUtils.isEmpty(ip) || UNKNOWN.equalsIgnoreCase(ip)) {
                ip = request.getHeader("HTTP_CLIENT_IP");
            }
            if (StringUtils.isEmpty(ip) || UNKNOWN.equalsIgnoreCase(ip)) {
                ip = request.getHeader("HTTP_X_FORWARDED_FOR");
            }
            //兼容k8s集群获取ip
            if (StringUtils.isEmpty(ip) || UNKNOWN.equalsIgnoreCase(ip)) {
                ip = request.getRemoteAddr();
                if (LOCALHOST_IP1.equalsIgnoreCase(ip) || LOCALHOST_IP.equalsIgnoreCase(ip)) {
                    //根据网卡取本机配置的IP
                    InetAddress iNet = null;
                    try {
                        iNet = InetAddress.getLocalHost();
                    } catch (UnknownHostException e) {
                        logger.error("getClientIp error: {}", e);
                    }
                    ip = iNet.getHostAddress();
                }
            }
        } catch (Exception e) {
            logger.error("IPUtils ERROR ", e);
        }
        //使用代理，则获取第一个IP地址
        if (!StringUtils.isEmpty(ip) && ip.indexOf(IP_UTILS_FLAG) > 0) {
            ip = ip.substring(0, ip.indexOf(IP_UTILS_FLAG));
        }
        return ip;
    }
}

分析ip获取详细地址

api的俩个参数

callback=showIP

key=Qn97RtiI2gwjStzJJjuG

import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
import java.net.URL;
import java.net.URLConnection;

/**
 *
 * 分析IP,获取ip所在的区域/国家
 */
public class GetIpAddrRegionUtil {
    
    
    /**
     * 获取Ip地址
     * @param
     * @return
     */
    public static String findIpAddrRegion(String ip) {
    
    
        String urlStr = "https://extreme-ip-lookup.com/json/" + ip + "?callback=showIP&key=Qn97RtiI2gwjStzJJjuG";
        StringBuffer json = new StringBuffer();
        try {
    
    
            URL url = new URL(urlStr);
            URLConnection uc = url.openConnection();
            //读取返回的数据
            BufferedReader in = new BufferedReader(new InputStreamReader(uc.getInputStream(), "UTF-8"));
            String inputline = null;
            while ((inputline = in.readLine()) != null) {
    
    
                json.append(inputline);
            }
            in.close();
        } catch (IOException e) {
    
    
            e.printStackTrace();
        }
        // 将请求的结果转成字符串
        String jsonStr = json.toString();
        // 获取对应的json的字符串
        String jsonStr02 = jsonStr.substring(7, jsonStr.length() - 2);
        return jsonStr02;
    }
}

将获取的jsonStr02字符串转成对象格式

showIp.class 为封装类,放json转的对象数据

ShowIp showIp1 = (ShowIp) JSONObject.parseObject(str, ShowIp.class);

最后从对象showIp1中回去数据