Java如何通过IP获得真实地址

今天接到个任务，客户想看到网站每天用户访问的地域分布，在网上大概查了下，没有比较适合的，仔细整理了下希望对你们有帮助。

一、获取访问IP这步很简单，但还是将代码贴出来吧，但是有一点需要注意，如果是nginx那种反向代理的，是获取不到客户端真实IP的，只能获取到nginx的代理IP，需要对nginx进行如下配置：

location / {proxy_pass http://127.0.0.1:10678;proxy_set_header Host $host;proxy_set_header X-Real-IP $remote_addr;proxy_set_header REMOTE-HOST $remote_addr;proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;}

    /*** description 获取客户端IP** @param request* @return java.lang.String* @version 1.0*/public static String getIpAddress(HttpServletRequest request) {String ip = request.getHeader("x-forwarded-for");if (ip == null || ip.length() == 0 || "unknown".equalsIgnoreCase(ip)) {ip = request.getHeader("Proxy-Client-IP");}if (ip == null || ip.length() == 0 || "unknown".equalsIgnoreCase(ip)) {ip = request.getHeader("WL-Proxy-Client-IP");}if (ip == null || ip.length() == 0 || "unknown".equalsIgnoreCase(ip)) {ip = request.getHeader("HTTP_CLIENT_IP");}if (ip == null || ip.length() == 0 || "unknown".equalsIgnoreCase(ip)) {ip = request.getHeader("HTTP_X_FORWARDED_FOR");}if (ip == null || ip.length() == 0 || "unknown".equalsIgnoreCase(ip)) {ip = request.getRemoteAddr();}// 如果是多级代理，那么取第一个IP为客户端IPif (ip != null && ip.indexOf(",") != -1) {ip = ip.substring(0, ip.indexOf(",")).trim();}return ip;}

二、获取到IP以后就需要查找真实地址了，大概分为以下几步：

1、首先引入maven依赖

        <dependency><groupId>com.maxmind.geoip2</groupId><artifactId>geoip2</artifactId><version>2.6.0</version></dependency>

2、下载ip地址库：
下载地址：https://pan.baidu.com/s/1wwCUY6Ac8LF8984FgAkgvg
提取码：xm24

3、现有两种方法可以获取真实地址，第一种通过地址库查询，第二种通过ali的地域查询，这两种各有优缺点：
①地址库查询：查询比较快适合批量查询，但是有的ip查询不到。
②ali地域查询：大部分的ip都能查询到，但是查询很慢，适合单个查询。

我将两者整合了下，这样大部分的查询应该都是没问题的。

    /*** description 地址库查询** @param ip 地址* @return java.lang.String* @version 1.0*/public static String getRealAddress(String ip) {String result = "";try {// 加载地址库ClassPathResource resource = new ClassPathResource("GeoLite2-City.mmdb");DatabaseReader reader = new DatabaseReader.Builder(resource.getInputStream()).build();InetAddress inetAddress = InetAddress.getByName(ip);CityResponse response = reader.city(inetAddress);// 获取所在国家String country = response.getCountry().getNames().get("ja");// 库内获取不到的IP，访问ali的地域查询if (response.getSubdivisions().size() > 0) {// 获取所在省份String province = response.getSubdivisions().get(0).getNames().get("zh-CN");// 获取所在城市String city = response.getCity().getNames().get("zh-CN");city = city == null ? "" : city;result = country + province + city;} else {result = getAlibaba(ip);}} catch (Exception e) {e.printStackTrace();}return result;}

    /*** description ali地域查询** @param ip ip地址* @return java.lang.String* @version 1.0*/public static String getAlibaba(String ip) {Map map = new HashMap();map.put("ip", ip);map.put("accessKey", "alibaba-inc");String result = HttpClientUtil.post("http://ip.taobao.com/outGetIpInfo", map);Map valueMap = JSONObject.parseObject(result, Map.class);// 请求成功，解析响应数据if ("query success".equals(valueMap.get("msg"))) {Map<String, String> dataMap = (Map<String, String>) valueMap.get("data");String country = dataMap.get("country");String region = dataMap.get("region");String city = dataMap.get("city");return country + region + city;}return "";}

结果如下图：

把工具类贴下面了,需要的自己粘下

    public static String post(String url, Map<String, String> mapParameter) {log.debug("开始请求: url = {}, mapParameter = {}, charset = {}", url, mapParameter);// 创建httpClient的默认实例try (CloseableHttpClient httpClient = HttpClients.createDefault()) {// 创建POST请求HttpPost httpPost = new HttpPost(url);// 设置参数List<NameValuePair> nameValuePairList = new ArrayList<>();// 迭代参数if (mapParameter != null && mapParameter.size() > 0) {mapParameter.forEach((k, v) -> nameValuePairList.add(new BasicNameValuePair(k, v)));}// 编码if (nameValuePairList.size() > 0) {UrlEncodedFormEntity entity = new UrlEncodedFormEntity(nameValuePairList);httpPost.setEntity(entity);}// 执行post请求try (CloseableHttpResponse response = httpClient.execute(httpPost)) {if (response != null) {log.info("请求成功, 响应状态: {}", response.getStatusLine().getStatusCode());HttpEntity httpEntity = response.getEntity();// 如果返回的内容不为空if (httpEntity != null) {return EntityUtils.toString(httpEntity);}}} catch (Exception e) {log.error("请求异常: e = {}", e);e.printStackTrace();}} catch (Exception e) {log.error("请求异常: e = {}", e);e.printStackTrace();}return null;}

本文来自互联网用户投稿，文章观点仅代表作者本人，不代表本站立场，不承担相关法律责任。如若转载，请注明出处。 如若内容造成侵权/违法违规/事实不符，请点击【内容举报】进行投诉反馈！