这篇文章主要介绍了基于java检查ipv6地址的合法性,文中通过示例代码介绍的非常详细，对大家的学习或者工作具有一定的参考学习价值,需要的朋友可以参考下
由于ipv4资源即将耗尽，ipv6将要正式启用，这是大势所趋。
一些现有的服务和应用逐步要对ipv6支持，目前还处在过渡阶段。
提前了解一些ipv6的知识，还是有必要的。
如何判断一个ip地址，是否为ipv6地址呢？
以下代码是用java实现的，用于校验ipv6地址合法性。
代码如下：
import java.text.normalizer;
import java.text.normalizer.form;
import java.util.regex.matcher;
import java.util.regex.pattern;
public class ipv6check {
public static void main(string[] args) {
string ipv6_1 = "2019:db8:a583:64:c68c:d6df:600c:ee9a";
string ipv6_2 = "2019:db8:a583::9e42:be55:53a7";
string ipv6_3 = "2019:db8:a583:::9e42:be55:53a7";
string ipv6_4 = "1:2:3:4:5::192.168.254.254";
string ipv6_5 = "abcd:910a:2222:5498:8475:1111:3900:2020";
string ipv6_6 = "1030::c9b4:ff12:48aa:1a2b";
string ipv6_7 = "2019:0:0:0:0:0:0:1";
string ipv6_8 = "::0:0:0:0:0:0:1";
string ipv6_9 = "2019:0:0:0:0::";
string ipv6_10= "2048:877e:31::7";
string resultline = "\n==> ";
string splitline = "\n----------------------------------------------------\n";
system.out.println(ipv6_1 + resultline + isvalidipv6addr(ipv6_1) + splitline);
system.out.println(ipv6_2 + resultline + isvalidipv6addr(ipv6_2) + splitline);
system.out.println(ipv6_3 + resultline + isvalidipv6addr(ipv6_3) + splitline);
system.out.println(ipv6_4 + resultline + isvalidipv6addr(ipv6_4) + splitline);
system.out.println(ipv6_5 + resultline + isvalidipv6addr(ipv6_5) + splitline);
system.out.println(ipv6_6 + resultline + isvalidipv6addr(ipv6_6) + splitline);
system.out.println(ipv6_7 + resultline + isvalidipv6addr(ipv6_7) + splitline);
system.out.println(ipv6_8 + resultline + isvalidipv6addr(ipv6_8) + splitline);
system.out.println(ipv6_9 + resultline + isvalidipv6addr(ipv6_9) + splitline);
system.out.println(ipv6_10 + resultline + isvalidipv6addr(ipv6_10) + splitline);
}
/**
* 校验ipv6地址的合法性
* @param ipaddr
* @return
*/
public static boolean isvalidipv6addr(string ipaddr) {
string regex = "(^((([0-9a-fa-f]{1,4}:){7}(([0-9a-fa-f]{1,4}){1}|:))"
+ "|(([0-9a-fa-f]{1,4}:){6}((:[0-9a-fa-f]{1,4}){1}|"
+ "((22[0-3]|2[0-1][0-9]|[0-1][0-9][0-9]|"
+ "([0-9]){1,2})([.](25[0-5]|2[0-4][0-9]|"
+ "[0-1][0-9][0-9]|([0-9]){1,2})){3})|:))|"
+ "(([0-9a-fa-f]{1,4}:){5}((:[0-9a-fa-f]{1,4}){1,2}|"
+ ":((22[0-3]|2[0-1][0-9]|[0-1][0-9][0-9]|"
+ "([0-9]){1,2})([.](25[0-5]|2[0-4][0-9]|"
+ "[0-1][0-9][0-9]|([0-9]){1,2})){3})|:))|"
+ "(([0-9a-fa-f]{1,4}:){4}((:[0-9a-fa-f]{1,4}){1,3}"
+ "|:((22[0-3]|2[0-1][0-9]|[0-1][0-9][0-9]|"
+ "([0-9]){1,2})([.](25[0-5]|2[0-4][0-9]|[0-1][0-9][0-9]|"
+ "([0-9]){1,2})){3})|:))|(([0-9a-fa-f]{1,4}:){3}((:[0-9a-fa-f]{1,4}){1,4}|"
+ ":((22[0-3]|2[0-1][0-9]|[0-1][0-9][0-9]|"
+ "([0-9]){1,2})([.](25[0-5]|2[0-4][0-9]|"
+ "[0-1][0-9][0-9]|([0-9]){1,2})){3})|:))|"
+ "(([0-9a-fa-f]{1,4}:){2}((:[0-9a-fa-f]{1,4}){1,5}|"
+ ":((22[0-3]|2[0-1][0-9]|[0-1][0-9][0-9]|"
+ "([0-9]){1,2})([.](25[0-5]|2[0-4][0-9]|"
+ "[0-1][0-9][0-9]|([0-9]){1,2})){3})|:))"
+ "|(([0-9a-fa-f]{1,4}:){1}((:[0-9a-fa-f]{1,4}){1,6}"
+ "|:((22[0-3]|2[0-1][0-9]|[0-1][0-9][0-9]|"
+ "([0-9]){1,2})([.](25[0-5]|2[0-4][0-9]|"
+ "[0-1][0-9][0-9]|([0-9]){1,2})){3})|:))|"
+ "(:((:[0-9a-fa-f]{1,4}){1,7}|(:[ff]{4}){0,1}:((22[0-3]|2[0-1][0-9]|"
+ "[0-1][0-9][0-9]|([0-9]){1,2})"
+ "([.](25[0-5]|2[0-4][0-9]|[0-1][0-9][0-9]|([0-9]){1,2})){3})|:)))$)";
if (ipaddr == null) {
system.out.println("ipv6 address is null ");
return false;
}
ipaddr = normalizer.normalize(ipaddr, form.nfkc);
pattern pattern = pattern.compile(regex);
matcher matcher = pattern.matcher(ipaddr);
boolean match = matcher.matches();
if (!match) {
system.out.println("invalid ipv6 address = " + ipaddr);
}
return match;
}
}
运行结果如下：
2019:db8:a583:64:c68c:d6df:600c:ee9a ==> true ---------------------------------------------------- 2019:db8:a583::9e42:be55:53a7 ==> true ---------------------------------------------------- invalid ipv6 address = 2019:db8:a583:::9e42:be55:53a7 2019:db8:a583:::9e42:be55:53a7 ==> false ---------------------------------------------------- 1:2:3:4:5::192.168.254.254 ==> true ---------------------------------------------------- abcd:910a:2222:5498:8475:1111:3900:2020 ==> true ---------------------------------------------------- 1030::c9b4:ff12:48aa:1a2b ==> true ---------------------------------------------------- 2019:0:0:0:0:0:0:1 ==> true ---------------------------------------------------- ::0:0:0:0:0:0:1 ==> true ---------------------------------------------------- 2019:0:0:0:0:: ==> true ---------------------------------------------------- 2048:877e:31::7 ==> true ----------------------------------------------------
以上就是本文的全部内容，希望对大家的学习有所帮助，也希望大家多多支持。
