根据IP获取对应国家

根据IP获取对应国家，代码中用到的csv文件，可以在ip段国家数据库下载。

import org.junit.Before;
import org.junit.Test;import java.io.IOException;
import java.nio.file.Files;
import java.nio.file.Path;
import java.nio.file.Paths;
import java.util.Arrays;
import java.util.HashMap;
import java.util.LinkedList;
import java.util.List;
import java.util.regex.Matcher;
import java.util.regex.Pattern;/*** http://www.foxavideo.com/download/download-ip-to-country.php*/
public class IPCountryTest {private static final HashMap<Long,String> maxIpMap = new HashMap<>();private static final String IP4_PATH = "E:\\tmp\\ip4.csv";private static final String UNKNOWN = "unknown";private static final String LOCAL_IP_PROMPT = "本地循环地址";private static final String PRIVATE_IP_PROMPT = "私有地址";private static final String[] LOCAL_IPS = {"127.0.0.1","0.0.0.0","localhost"};private static final String PRIVATE_IP_REGEX = "^(10\\.\\d{1,3}\\.\\d{1,3}\\.\\d{1,3})|(172\\.((1[6-9])|(2\\d)|(3[01]))\\.\\d{1,3}\\.\\d{1,3})|(192\\.168\\.\\d{1,3}\\.\\d{1,3})$";private static final Pattern PRIVATE_IP_PATTERN = Pattern.compile(PRIVATE_IP_REGEX);private static Long[] maxIps;@Beforepublic void setUp() throws IOException {init();}@Testpublic void testIpToCountry() {String[] ips = {"176.60.152.42", "24.9.55.92", "46.221.227.19","127.0.0.1","0.0.0.0","LOCALHOST","192.168.33.174","10.2.2.2","172.17.3.3"};for(String ip : ips) {System.out.println(ipToContry(ip));}}public static String ipToContry(String ip){if(isLocalIp(ip)){return LOCAL_IP_PROMPT;}if(isPrivateIp(ip)){return PRIVATE_IP_PROMPT;}long ipNum = ipToNum(ip);Long bound = null;for(int i=0;i<maxIps.length;i++){if(maxIps[i] >= ipNum){bound = maxIps[i];break;}}if(bound == null){return UNKNOWN;}return maxIpMap.getOrDefault(bound,UNKNOWN);}public static boolean isPrivateIp(String ip){Matcher matcher = PRIVATE_IP_PATTERN.matcher(ip);return matcher.find();}public static boolean isLocalIp(String ip){for(String localIp : LOCAL_IPS){if(localIp.equalsIgnoreCase(ip)){return true;}}return false;}public static long ipToNum(String ip) {String[] parts = ip.split("\\.");assert parts.length == 4;return (Long.parseLong(parts[0]) << 24) + (Long.parseLong(parts[1]) << 16) + (Long.parseLong(parts[2]) << 8) + Long.parseLong(parts[3]);}private static void init() throws IOException {Path path = Paths.get(IP4_PATH);List<String> lines = Files.readAllLines(path);LinkedList<Long> maxIpList = new LinkedList<>();for(String line : lines){String[] split = line.split(",");if(split.length != 3){continue;}String country = split[0];
//            String start = split[1];//开始ipString end = split[2];//结束iplong endIp = ipToNum(end);maxIpList.add(endIp);maxIpMap.put(endIp,map.getOrDefault(country, UNKNOWN));}maxIps = new Long[maxIpList.size()];maxIpList.toArray(maxIps);Arrays.sort(maxIps);}private static final HashMap<String,String> map = new HashMap<>();static {map.put("AD","安道尔共和国");map.put("AE","阿拉伯联合酋长国");map.put("AF","阿富汗");map.put("AG","安提瓜和巴布达");map.put("AI","安圭拉岛");map.put("AL","阿尔巴尼亚");map.put("AM","亚美尼亚");map.put("AO","安哥拉");map.put("AR","阿根廷");map.put("AT","奥地利");map.put("AU","澳大利亚");map.put("AZ","阿塞拜疆");map.put("BB","巴巴多斯");map.put("BD","孟加拉国");map.put("BE","比利时");map.put("BF","布基纳法索");map.put("BG","保加利亚");map.put("BH","巴林");map.put("BI","布隆迪");map.put("BJ","贝宁");map.put("BL","巴勒斯坦");map.put("BM","百慕大群岛");map.put("BN","文莱");map.put("BO","玻利维亚");map.put("BR","巴西");map.put("BS","巴哈马");map.put("BW","博茨瓦纳");map.put("BY","白俄罗斯");map.put("BZ","伯利兹");map.put("CA","加拿大");map.put("CF","中非共和国");map.put("CG","刚果");map.put("CH","瑞士");map.put("CK","库克群岛");map.put("CL","智利");map.put("CM","喀麦隆");map.put("CN","中国");map.put("CO","哥伦比亚");map.put("CR","哥斯达黎加");map.put("CS","捷克");map.put("CU","古巴");map.put("CY","塞浦路斯");map.put("CZ","捷克");map.put("DE","德国");map.put("DJ","吉布提");map.put("DK","丹麦");map.put("DO","多米尼加共和国");map.put("DZ","阿尔及利亚");map.put("EC","厄瓜多尔");map.put("EE","爱沙尼亚");map.put("EG","埃及");map.put("ES","西班牙");map.put("ET","埃塞俄比亚");map.put("FI","芬兰");map.put("FJ","斐济");map.put("FR","法国");map.put("GA","加蓬");map.put("GB","英国");map.put("GD","格林纳达");map.put("GE","格鲁吉亚");map.put("GF","法属圭亚那");map.put("GH","加纳");map.put("GI","直布罗陀");map.put("GM","冈比亚");map.put("GN","几内亚");map.put("GR","希腊");map.put("GT","危地马拉");map.put("GU","关岛");map.put("GY","圭亚那");map.put("HK","中国香港特别行政区");map.put("HN","洪都拉斯");map.put("HT","海地");map.put("HU","匈牙利");map.put("ID","印度尼西亚");map.put("IE","爱尔兰");map.put("IL","以色列");map.put("IN","印度");map.put("IQ","伊拉克");map.put("IR","伊朗");map.put("IS","冰岛");map.put("IT","意大利");map.put("JM","牙买加");map.put("JO","约旦");map.put("JP","日本");map.put("KE","肯尼亚");map.put("KG","吉尔吉斯坦");map.put("KH","柬埔寨");map.put("KP","朝鲜");map.put("KR","韩国");map.put("KT","科特迪瓦共和国");map.put("KW","科威特");map.put("KZ","哈萨克斯坦");map.put("LA","老挝");map.put("LB","黎巴嫩");map.put("LC","圣卢西亚");map.put("LI","列支敦士登");map.put("LK","斯里兰卡");map.put("LR","利比里亚");map.put("LS","莱索托");map.put("LT","立陶宛");map.put("LU","卢森堡");map.put("LV","拉脱维亚");map.put("LY","利比亚");map.put("MA","摩洛哥");map.put("MC","摩纳哥");map.put("MD","摩尔多瓦");map.put("MG","马达加斯加");map.put("ML","马里");map.put("MM","缅甸");map.put("MN","蒙古");map.put("MO","中国澳门特别行政区");map.put("MS","蒙特塞拉特岛");map.put("MT","马耳他");map.put("MU","毛里求斯");map.put("MV","马尔代夫");map.put("MW","马拉维");map.put("MX","墨西哥");map.put("MY","马来西亚");map.put("MZ","莫桑比克");map.put("NA","纳米比亚");map.put("NE","尼日尔");map.put("NG","尼日利亚");map.put("NI","尼加拉瓜");map.put("NL","荷兰");map.put("NO","挪威");map.put("NP","尼泊尔");map.put("NR","瑙鲁");map.put("NZ","新西兰");map.put("OM","阿曼");map.put("PA","巴拿马");map.put("PE","秘鲁");map.put("PF","法属玻利尼西亚");map.put("PG","巴布亚新几内亚");map.put("PH","菲律宾");map.put("PK","巴基斯坦");map.put("PL","波兰");map.put("PR","波多黎各");map.put("PT","葡萄牙");map.put("PY","巴拉圭");map.put("QA","卡塔尔");map.put("RO","罗马尼亚");map.put("RU","俄罗斯");map.put("SA","沙特阿拉伯");map.put("SB","所罗门群岛");map.put("SC","塞舌尔");map.put("SD","苏丹");map.put("SE","瑞典");map.put("SG","新加坡");map.put("SI","斯洛文尼亚");map.put("SK","斯洛伐克");map.put("SL","塞拉利昂");map.put("SM","圣马力诺");map.put("SN","塞内加尔");map.put("SO","索马里");map.put("SR","苏里南");map.put("ST","圣多美和普林西比");map.put("SV","萨尔瓦多");map.put("SY","叙利亚");map.put("SZ","斯威士兰");map.put("TD","乍得");map.put("TG","多哥");map.put("TH","泰国");map.put("TJ","塔吉克斯坦");map.put("TM","土库曼斯坦");map.put("TN","突尼斯");map.put("TO","汤加");map.put("TR","土耳其");map.put("TT","特立尼达和多巴哥");map.put("TW","中国台湾省");map.put("TZ","坦桑尼亚");map.put("UA","乌克兰");map.put("UG","乌干达");map.put("US","美国");map.put("UY","乌拉圭");map.put("UZ","乌兹别克斯坦");map.put("VC","圣文森特岛");map.put("VE","委内瑞拉");map.put("VN","越南");map.put("YE","也门");map.put("YU","南斯拉夫");map.put("ZA","南非");map.put("ZM","赞比亚");map.put("ZR","扎伊尔");map.put("ZW","津巴布韦");
//        map.put("","阿森松");
//        map.put("","开曼群岛");
//        map.put("","科特迪瓦");
//        map.put("","马里亚那群岛");
//        map.put("","马提尼克");
//        map.put("","荷属安的列斯");
//        map.put("","留尼旺");
//        map.put("","东萨摩亚(美)");
//        map.put("","西萨摩亚");}
}

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