\u6536\u5230\u4e00\u4e2a\u9700\u6c42\uff0c\u9700\u8981\u5224\u65adIP\u662f\u5426\u6765\u81ea\u4e2d\u56fd\u3002<\/p>\n
\u5224\u65adIP\u6765\u6e90\uff0c\u5f88\u65e9\u4e4b\u524d\u81ea\u5df1\u4e5f\u611f\u5174\u8da3\uff0c\u4e00\u76f4\u6ca1\u6709\u53bb\u4e86\u89e3\u5982\u4f55\u5b9e\u73b0\u3002<\/p>\n
\u4eca\u5929\u6b63\u597d\u641c\u7d22\u4e86\u4e00\u4e0b\u76f8\u5173\u7684\u6587\u7ae0\u3002<\/p>\n
\u4e9a\u6d32\u6240\u6709\u76f8\u5173\u5206\u914d\u7684IP\u6bb5\u53ef\u4ee5\u4ece http:\/\/ftp.apnic.net\/apnic\/stats\/apnic\/delegated-apnic-latest \u67e5\u8be2\u3002<\/p>\n
\u4ece\u91cc\u9762\u89e3\u91ca\u540e\u5373\u53ef\u5b9e\u73b0\u5224\u65adIP\u662f\u5426\u4e3a\u4e2d\u56fd\u3002<\/p>\n
\u6ca1\u6709\u627e\u5230java\u7684\u4ee3\u7801\uff0c\u5c31\u81ea\u5df1\u5199\u4e86\u4e00\u4efd\uff0c\u4f9b\u5176\u5b83\u670b\u53cb\u4f7f\u7528\u3002<\/p>\n
\u5c06\u4e0b\u8f7d\u4e0b\u6765\u7684 delegated-apnic-latest \u653e\u5728 classpath\u4e0b\u5373\u53ef\u3002<\/p>\n
import java.io.InputStream;\r\nimport java.nio.charset.StandardCharsets;\r\nimport java.util.Collections;\r\nimport java.util.List;\r\nimport java.util.Map;\r\n\r\nimport org.apache.commons.io.IOUtils;\r\nimport org.apache.commons.lang3.StringUtils;\r\nimport org.assertj.core.util.Lists;\r\nimport org.slf4j.Logger;\r\nimport org.slf4j.LoggerFactory;\r\n\r\nimport com.google.common.collect.Maps;\r\n\r\npublic class IpUtil {\r\n private static final String FILE_NAME = "delegated-apnic-latest";\r\n\r\n \/\/ \u53ea\u5b58\u653e\u5c5e\u4e8e\u4e2d\u56fd\u7684ip\u6bb5\r\n private static Map<Integer, List<int[]>> chinaIps = Maps.newHashMap();\r\n static {\r\n init();\r\n }\r\n\r\n public static void init() {\r\n try {\r\n \/\/ ip\u683c\u5f0f: add1.add2.add3.add4\r\n \/\/ key\u4e3a : add1*256+add2\r\n \/\/ value\u4e3aint[2]: int[0]\u5b58\u7684add3*256+add4\u7684\u5f00\u59cbip int[4]\u5b58\u7684\u7ed3\u675fip\r\n Map<Integer, List<int[]>> map = Maps.newHashMap();\r\n\r\n InputStream input = Thread.currentThread().getContextClassLoader().getResourceAsStream(FILE_NAME);\r\n List<String> lines = IOUtils.readLines(input, StandardCharsets.UTF_8);\r\n for (String line : lines) {\r\n if (line.startsWith("apnic|CN|ipv4|")) {\r\n \/\/ \u53ea\u5904\u7406\u5c5e\u4e8e\u4e2d\u56fd\u7684ipv4\u5730\u5740\r\n String[] strs = line.split("\\\\|");\r\n String ip = strs[3];\r\n String[] add = ip.split("\\\\.");\r\n int count = Integer.valueOf(strs[4]);\r\n\r\n int startIp = Integer.parseInt(add[0]) * 256 + Integer.parseInt(add[1]);\r\n while (count > 0) {\r\n if (count >= 65536) {\r\n \/\/ add1,add2 \u6574\u6bb5\u90fd\u662f\u4e2d\u56fdip\r\n chinaIps.put(startIp, Collections.EMPTY_LIST);\r\n count -= 65536;\r\n startIp += 1;\r\n } else {\r\n\r\n int[] ipRange = new int[2];\r\n ipRange[0] = Integer.parseInt(add[2]) * 256 + Integer.parseInt(add[3]);\r\n ipRange[1] = ipRange[0] + count;\r\n count -= count;\r\n\r\n List<int[]> list = map.get(startIp);\r\n if (list == null) {\r\n list = Lists.newArrayList();\r\n map.put(startIp, list);\r\n }\r\n\r\n list.add(ipRange);\r\n }\r\n }\r\n }\r\n }\r\n chinaIps.putAll(map);\r\n } catch (Exception e) {\r\n logger.error("ERROR", e);\r\n }\r\n }\r\n\r\n public static boolean isChinaIp(String ip) {\r\n if (StringUtils.isEmpty(ip)) {\r\n return false;\r\n }\r\n String[] strs = ip.split("\\\\.");\r\n if (strs.length != 4) {\r\n return false;\r\n }\r\n int key = Integer.valueOf(strs[0]) * 256 + Integer.valueOf(strs[1]);\r\n List<int[]> list = chinaIps.get(key);\r\n if (list == null) {\r\n return false;\r\n }\r\n if (list.size() == 0) {\r\n \/\/ \u6574\u6bb5\u90fd\u662f\u4e2d\u56fdip\r\n return true;\r\n }\r\n int ipValue = Integer.valueOf(strs[2]) * 256 + Integer.valueOf(strs[3]);\r\n for (int[] ipRange : list) {\r\n if (ipValue >= ipRange[0] && ipValue <= ipRange[1]) {\r\n return true;\r\n }\r\n }\r\n\r\n return false;\r\n }\r\n\r\n private static final Logger logger = LoggerFactory.getLogger(IpUtil.class);\r\n}<\/pre>\n <\/p>\n
\u5982\u679c\u6269\u5c55\u8fd9\u4e2a\u4ee3\u7801\u540e\uff0c\u53ef\u4ee5\u589e\u52a0\u5224\u65adIP\u5c5e\u4e8e\u54ea\u4e2a\u56fd\u5bb6\u3002<\/p>\n
\u5982\u679c\u5728\u5224\u65adIP\u5c5e\u4e8e\u54ea\u4e2a\u57ce\u5e02\uff0c\u53ef\u80fd\u5f97\u9700\u8981 http:\/\/dev.maxmind.com\/zh-hans\/geoip\/geoip2\/<\/p>\n
<\/p>\n
\u53c2\u8003\uff1a<\/p>\n
https:\/\/www.zhihu.com\/question\/19794443<\/p>\n
http:\/\/xixitalk.github.io\/blog\/2013\/03\/11\/func-is-china-ip\/<\/p>\n
<\/p>\n","protected":false},"excerpt":{"rendered":"
\u6536\u5230\u4e00\u4e2a\u9700\u6c42\uff0c\u9700\u8981\u5224\u65adIP\u662f\u5426\u6765\u81ea\u4e2d\u56fd\u3002 \u5224\u65adIP\u6765\u6e90\uff0c\u5f88\u65e9\u4e4b\u524d\u81ea\u5df1\u4e5f\u611f\u5174\u8da3\uff0c\u4e00 …<\/p>\n