前言

• 很多时候，项目里需要展示用户的IP属地信息，所以这篇文章就记录一下如何在Java Spring boot项目里获取请求的IP属地

步骤

在pom文件中引入下列依赖

        <!--   该依赖可以根据ip地址获取该ip相关的信息     -->
        <dependency>
            <groupId>net.dreamlu</groupId>
            <artifactId>mica-ip2region</artifactId>
            <version>2.5.6</version>
        </dependency>

IpUtil工具类

• 该工具类对HttpServletRequest解析，得到ip地址字符串

public class IpUtil {
    /**
     * 获取客户端ip
     *
     * @param request
     * @return
     */
    public static String getIp(HttpServletRequest request) {
        String ip = request.getHeader("x-forwarded-for");

        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];
            }
        }
        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.getHeader("X-Real-IP");
        }
        if (ip == null || ip.length() == 0 || "unknown".equalsIgnoreCase(ip)) {
            ip = request.getRemoteAddr();
        }
        return ip;
    }
}

在Controller层编写接口，获取请求的IP属地

@RestController
@RequestMapping("/part/util")
@Api(tags = "工具类", value = "UtilController")
public class UtilController {
    @Autowired
    private Ip2regionSearcher ip2regionSearcher; // 核心处理类
    
    @ApiOperation(value = "获取ip属地")
    @GetMapping("/ipCity")
    public String getipCity(HttpServletRequest request) {
        String ip = IpUtil.getIp(request);
        IpInfo ipInfo = ip2regionSearcher.memorySearch(ip);
        String city = ipInfo.getCity();
        return city;
    }
}

测试接口

• 这里我的请求是内网ip，所以返回的结果是“内网ip”，有点像废话hhh。
  

IpInfo类中的方法

简单介绍一下几个常见的方法

ipInfo.getCountry(); // 国家中文名称
ipInfo.getProvince(); // 中国省份中文名称
ipInfo.getAddress(); // 详细地址
ipInfo.getIsp(); // 互联网服务提供商
ipInfo.isOverseas(); // 是否是国外
ipInfo.getLat(); // 纬度
ipInfo.getLng(); // 经度