//太平洋接口返回數據格式
        /*
        {
            ip: "58.63.47.115",
            pro: "廣東省",
            proCode: "440000",
            city: "廣州市",
            cityCode: "440100",
            region: "天河區",
            regionCode: "440106",
            addr: "廣東省廣州市天河區 電信",
            regionNames: "",
            err: ""
        }
         */

import lombok.Data;

/**
 * ip
 */
@Data
public class IpVo {
    private String ip;//IP地址
    private String pro;//省
    private String proCode;//省編碼
    private String city;//城市
    private String cityCode;//城市編碼
    private String region;//區
    private String regionCode;//區編碼
    private String addr;//詳細地址 + 運營商

    //主要用於接參，無實際意義
    private String regionNames;
    private String err;
}

import cn.huanzi.qch.baseadmin.common.pojo.IpVo;
import com.fasterxml.jackson.annotation.JsonInclude;
import com.fasterxml.jackson.databind.ObjectMapper;
import lombok.extern.slf4j.Slf4j;
import org.springframework.util.StringUtils;

import javax.servlet.http.HttpServletRequest;
import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
import java.net.HttpURLConnection;
import java.net.URL;
import java.text.SimpleDateFormat;

/**
 * IP工具類
 */
@Slf4j
public class IpUtil {
    /**
     * 獲取訪問者的ip地址
     * 註：要外網訪問才能獲取到外網地址，如果你在局域網甚至本機上訪問，獲得的是內網或者本機的ip
     */
    public static String getIpAddr(HttpServletRequest request) {
        String ipAddress = null;
        try {
            //X-Forwarded-For：Squid 服務代理
            String ipAddresses = request.getHeader("X-Forwarded-For");

            if (ipAddresses == null || ipAddresses.length() == 0 || "unknown".equalsIgnoreCase(ipAddresses)) {
                //Proxy-Client-IP：apache 服務代理
                ipAddresses = request.getHeader("Proxy-Client-IP");
            }

            if (ipAddresses == null || ipAddresses.length() == 0 || "unknown".equalsIgnoreCase(ipAddresses)) {
                //WL-Proxy-Client-IP：weblogic 服務代理
                ipAddresses = request.getHeader("WL-Proxy-Client-IP");
            }

            if (ipAddresses == null || ipAddresses.length() == 0 || "unknown".equalsIgnoreCase(ipAddresses)) {
                //HTTP_CLIENT_IP：有些代理服務器
                ipAddresses = request.getHeader("HTTP_CLIENT_IP");
            }

            if (ipAddresses == null || ipAddresses.length() == 0 || "unknown".equalsIgnoreCase(ipAddresses)) {
                //X-Real-IP：nginx服務代理
                ipAddresses = request.getHeader("X-Real-IP");
            }

            //有些網絡通過多層代理，那麼獲取到的ip就會有多個，一般都是通過逗號（,）分割開來，並且第一個ip為客戶端的真實IP
            if (ipAddresses != null && ipAddresses.length() != 0) {
                ipAddress = ipAddresses.split(",")[0];
            }

            //還是不能獲取到，最後再通過request.getRemoteAddr();獲取
            if (ipAddress == null || ipAddress.length() == 0 || "unknown".equalsIgnoreCase(ipAddresses)) {
                ipAddress = request.getRemoteAddr();
            }
        } catch (Exception e) {
            ipAddress = "";
        }
        return ipAddress;
    }

    /**
     * 調用太平洋網絡IP地址查詢Web接口（//whois.pconline.com.cn/），返回ip、地理位置
     */
    public static IpVo getIpVo(String ip){
        //查本機
        String url = "//whois.pconline.com.cn/ipJson.jsp?json=true";

        //查指定ip
        if(!StringUtils.isEmpty(ip)){
            url = "//whois.pconline.com.cn/ipJson.jsp?json=true&ip=" + ip;
        }

        StringBuilder inputLine = new StringBuilder();
        String read;
        try {
            HttpURLConnection urlConnection = (HttpURLConnection) new URL(url).openConnection();
            urlConnection.setRequestProperty("Charset", "GBK");
            BufferedReader in = new BufferedReader(new InputStreamReader(urlConnection.getInputStream(), "GBK"));
            while ((read = in.readLine()) != null) {
                inputLine.append(read);
            }
            in.close();
        } catch (Exception e) {
            e.printStackTrace();
        }

        //返回格式
        /*
        {
            ip: "58.63.47.115",
            pro: "廣東省",
            proCode: "440000",
            city: "廣州市",
            cityCode: "440100",
            region: "天河區",
            regionCode: "440106",
            addr: "廣東省廣州市天河區 電信",
            regionNames: "",
            err: ""
        }
         */

        IpVo ipVo = null;
        try {
            ObjectMapper mapper = new ObjectMapper();
            //當屬性的值為空（null或者""）時，不進行序列化，可以減少數據傳輸
            mapper.setSerializationInclusion(JsonInclude.Include.NON_EMPTY);
            //設置日期格式
            mapper.setDateFormat(new SimpleDateFormat("yyyy-MM-dd HH:mm:ss"));
            //轉換成IpVo
            ipVo = mapper.readValue(new String(inputLine.toString().getBytes("GBK"), "GBK"), IpVo.class);
        } catch (IOException e) {
            e.printStackTrace();
        }
        return ipVo;
    }

    /**
     * 直接根據訪問者的Request，返回ip、地理位置
     */
    public static IpVo getIpVoByRequest(HttpServletRequest request){
        return IpUtil.getIpVo(IpUtil.getIpAddr(request));
    }

    /*
        終極大法：java獲取不了，就用js來獲取
        <!-- js獲取客戶ip -->
        <script src="//whois.pconline.com.cn/ipJson.jsp"></script>
     */

    /*//測試
    public static void main(String[] args) {
        //獲取本機ip
        System.out.println(getIpVo(null));

        //獲取指定ip
        System.out.println(getIpVo("115.48.58.106"));
    }*/
}

    //測試
    public static void main(String[] args) {
        //獲取本機ip
        System.out.println(getIpVo(null));

        //獲取指定ip
        System.out.println(getIpVo("115.48.58.106"));
    }