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!246 IP字符串版本判断,IPv6和大整数相互转换

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Merge pull request !246 from AppleOfGray/v5-dev
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Looly 2021-01-06 16:16:59 +08:00 committed by Gitee
commit 1a3186ef39
1 changed files with 49 additions and 0 deletions
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49
hutool-core/src/main/java/cn/hutool/core/net/NetUtil.java
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@ -10,6 +10,7 @@ import cn.hutool.core.util.StrUtil;
import java.io.IOException;
import java.io.OutputStream;
import java.math.BigInteger;
import java.net.DatagramSocket;
import java.net.HttpCookie;
import java.net.IDN;
@ -33,6 +34,7 @@ import java.util.LinkedHashSet;
import java.util.List;
import java.util.Set;
import java.util.TreeSet;
import java.util.regex.Pattern;
/**
* 网络相关工具
@ -76,6 +78,53 @@ public class NetUtil {
return Ipv4Util.ipv4ToLong(strIP);
}
/**
* 检测给定的IP字符串符合哪个版本
* @param ipStr 需要检测的字符串
* @return 版本号['IPv4', 'IPv6', 'Neither']
*/
public static String getIpVersion(String ipStr) {
Pattern patternIpv4 = Pattern.compile("^(\\d|[1-9]\\d|1\\d{2}|2[0-4]\\d|25[0-5])(\\.(\\d|[1-9]\\d|1\\d{2}|2[0-4]\\d|25[0-5])){3}$");
Pattern patternIpv6 = Pattern.compile("^((([0-9A-Fa-f]{1,4}:){7}[0-9A-Fa-f]{1,4})|(([0-9A-Fa-f]{1,4}:){1,7}:)|(([0-9A-Fa-f]{1,4}:){6}:[0-9A-Fa-f]{1,4})|(([0-9A-Fa-f]{1,4}:){5}(:[0-9A-Fa-f]{1,4}){1,2})|(([0-9A-Fa-f]{1,4}:){4}(:[0-9A-Fa-f]{1,4}){1,3})|(([0-9A-Fa-f]{1,4}:){3}(:[0-9A-Fa-f]{1,4}){1,4})|(([0-9A-Fa-f]{1,4}:){2}(:[0-9A-Fa-f]{1,4}){1,5})|([0-9A-Fa-f]{1,4}:(:[0-9A-Fa-f]{1,4}){1,6})|(:(:[0-9A-Fa-f]{1,4}){1,7})|(([0-9A-Fa-f]{1,4}:){6}(\\d|[1-9]\\d|1\\d{2}|2[0-4]\\d|25[0-5])(\\.(\\d|[1-9]\\d|1\\d{2}|2[0-4]\\d|25[0-5])){3})|(([0-9A-Fa-f]{1,4}:){5}:(\\d|[1-9]\\d|1\\d{2}|2[0-4]\\d|25[0-5])(\\.(\\d|[1-9]\\d|1\\d{2}|2[0-4]\\d|25[0-5])){3})|(([0-9A-Fa-f]{1,4}:){4}(:[0-9A-Fa-f]{1,4}){0,1}:(\\d|[1-9]\\d|1\\d{2}|2[0-4]\\d|25[0-5])(\\.(\\d|[1-9]\\d|1\\d{2}|2[0-4]\\d|25[0-5])){3})|(([0-9A-Fa-f]{1,4}:){3}(:[0-9A-Fa-f]{1,4}){0,2}:(\\d|[1-9]\\d|1\\d{2}|2[0-4]\\d|25[0-5])(\\.(\\d|[1-9]\\d|1\\d{2}|2[0-4]\\d|25[0-5])){3})|(([0-9A-Fa-f]{1,4}:){2}(:[0-9A-Fa-f]{1,4}){0,3}:(\\d|[1-9]\\d|1\\d{2}|2[0-4]\\d|25[0-5])(\\.(\\d|[1-9]\\d|1\\d{2}|2[0-4]\\d|25[0-5])){3})|([0-9A-Fa-f]{1,4}:(:[0-9A-Fa-f]{1,4}){0,4}:(\\d|[1-9]\\d|1\\d{2}|2[0-4]\\d|25[0-5])(\\.(\\d|[1-9]\\d|1\\d{2}|2[0-4]\\d|25[0-5])){3})|(:(:[0-9A-Fa-f]{1,4}){0,5}:(\\d|[1-9]\\d|1\\d{2}|2[0-4]\\d|25[0-5])(\\.(\\d|[1-9]\\d|1\\d{2}|2[0-4]\\d|25[0-5])){3}))$");
if (patternIpv6.matcher(ipStr).matches()) {
return "IPv6";
} else if (patternIpv4.matcher(ipStr).matches()) {
return "IPv4";
} else {
return "Neither";
}
}
/**
* 将IPv6地址字符串转为大整数
*
* @param IPv6Str 字符串
* @return 大整数, 如发生异常返回 null
*/
public static BigInteger ipv6ToBitInteger(String IPv6Str) {
try {
InetAddress address = InetAddress.getByName(IPv6Str);
if (address instanceof Inet6Address) {
return new BigInteger(1, address.getAddress());
}
} catch (UnknownHostException e) {}
return null;
}
/**
* 将大整数转换成ipv6字符串
*
* @param bigInteger 大整数
* @return IPv6字符串, 如发生异常返回 null
*/
public static String bigIntegerToIPv6(BigInteger bigInteger) {
try {
String ipv6 = InetAddress.getByAddress(bigInteger.toByteArray()).toString().substring(1);
return ipv6;
} catch (UnknownHostException e) {}
return null;
}
/**
* 检测本地端口可用性<br>
* 来自org.springframework.util.SocketUtils