java根据ip地址获取城市地域信息

java根据ip地址获取城市地域信息

这里提供两个公开的接口，一个是阿里的，一个是新浪的
http://ip.taobao.com/service/getIpInfo.php?ip=123.139.94.139

http://int.dpool.sina.com.cn/iplookup/iplookup.php?format=json&ip=218.192.3.42

接下来上代码，我这里用的是springboot自带的RestTemplate，各位如果没用到可以用HttpURLConnection。案例是在拦截器里获取ip，并查询地址。如果内网测试的话，获取到的是内网ip，通过内网穿透出去访问，可以获取你的公网出口ip，或者吧ip直接写死。

@SpringBootApplication public class LgmallRestApplication { @Autowired private RestTemplateBuilder builder; @Bean public RestTemplate restTemplate() { return builder.build(); } public static void main(String[] args) { SpringApplication.run(LgmallRestApplication.class, args); } } 

/** * @Author: nelson * @Description: 商品浏览记录 * @Date: created in 2018/03/31/16:49 */ public class BrowseItemInterceptor implements HandlerInterceptor { @Autowired private RestTemplate restTemplate; @Override public boolean preHandle(HttpServletRequest request, HttpServletResponse response, Object handler) throws Exception { 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.getRemoteAddr(); } if (ip != null && ip.length() != 0 && !"unknown".equalsIgnoreCase(ip)) { // 多次反向代理后会有多个ip值，第一个ip才是真实ip if( ip.indexOf(",")!=-1 ){ ip = ip.split(",")[0]; } } //新浪查询失败查询阿里 String sina = restTemplate.getForObject("http://int.dpool.sina.com.cn/iplookup/iplookup.php?format=json&ip={ip}", String.class,ip); SinaIpVo sinaIpVo = new Gson().fromJson(sina, SinaIpVo.class); if(sinaIpVo.getRet()!=-1){ System.out.println(sinaIpVo.getProvince()); System.out.println(sinaIpVo.getCity()); }else{ String object = restTemplate.getForObject("http://ip.taobao.com/service/getIpInfo.php?ip={ip}", String.class,ip); IpVo ipVo = new Gson().fromJson(object, IpVo.class); // XX表示内网 if(ipVo.getCode()==0 && !ipVo.getAddress().getRegion().equals("XX")){ System.out.println(ipVo.getAddress().getRegion()); System.out.println(ipVo.getAddress().getCity()); } } return true; } @Override public void postHandle(HttpServletRequest request, HttpServletResponse response, Object handler, ModelAndView modelAndView) throws Exception { } @Override public void afterCompletion(HttpServletRequest request, HttpServletResponse response, Object handler, Exception ex) throws Exception { } } 

阿里返回结果封装的vo,省去get、set方法，需要其他的属性根据返回json自己扩展。

/** * @Author: nelson * @Description: get city by ip * @Date: created in 2018/03/31/17:40 */ public class IpVo implements Serializable{ private Integer code; private Address address; public class Address implements Serializable{ private String ip; private String region; private String city; } } 

新浪返回结果封装的vo,省去get、set方法，需要其他的属性根据返回json自己扩展。

/** * @Author: nelson * @Description: get city by ip * @Date: created in 2018/03/31/17:40 */ public class SinaIpVo implements Serializable{ private Integer ret; private String province; private String city; } 

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