验证ip地址

package site.wangxin520.test;

import sun.net.util.IPAddressUtil;

public class Test {

    public static void main(String[] args) throws Exception {
        // String ip = "192.168.110.250";
        // String ip = "11100100.00000100.00000101.11111101";
        // String ip = "CDCD:910A:2222:5498:8475:1111:3900:2020";
        // String ip = "1030::C9B4:FF12:48AA:1A2B";
        String ip = "0000:0000:0000:0000:0000:0000:c0a8:5909";
        // ipv6兼容ipv4方法已被舍弃，不采用下面的方式
        // String ip="::192.168.89.9";
        try {
            if (ip.contains(".")) {
                // ipv4的处理方式
                if (ip.length() == 35 && ip.contains(".")) {
                    String[] split = ip.split("[.]");
                    StringBuilder sb = new StringBuilder();
                    for (String string : split) {
                        int parseInt = Integer.parseInt(string, 2);
                        sb.append(parseInt).append(".");
                    }
                    ip = sb.toString().substring(0, sb.toString().lastIndexOf("."));
                }
                System.out.println(IPAddressUtil.isIPv4LiteralAddress(ip) ? "是ipv4的IP地址" : "不是IP地址");
            } else if (ip.contains(":")) {
                //ipv6的处理方式
                System.out.println(IPAddressUtil.isIPv6LiteralAddress(ip) ? "是ipv6的IP地址" : "不是IP地址");
            } else {
                System.out.println("不是ip地址");
            }
        } catch (Exception e) {
            System.out.println("不是ip地址");
        }

    }
}