用Java判断Ip类型

可以使用Java中的InetAddress类来判断IP地址的类型，具体方法如下：

import java.net.InetAddress;
import java.net.UnknownHostException;

public class IpTypeChecker {
    public static void main(String[] args) {
        String ipAddress = "192.168.1.1";

        try {
            InetAddress inetAddress = InetAddress.getByName(ipAddress);
            if (inetAddress.isAnyLocalAddress()) {
                System.out.println(ipAddress + " is a wildcard address.");
            } else if (inetAddress.isLoopbackAddress()) {
                System.out.println(ipAddress + " is loopback address.");
            } else if (inetAddress.isLinkLocalAddress()) {
                System.out.println(ipAddress + " is a link-local address.");
            } else if (inetAddress.isSiteLocalAddress()) {
                System.out.println(ipAddress + " is a site-local address.");
            } else if (inetAddress.isMulticastAddress()) {
                System.out.println(ipAddress + " is a multicast address.");
            } else {
                System.out.println(ipAddress + " is a global address.");
            }
        } catch (UnknownHostException e) {
            e.printStackTrace();
        }
    }
}

该代码会判断IP地址类型并输出结果。其中，isAnyLocalAddress()方法用于判断是否为通配地址，isLoopbackAddress()方法用于判断是否为回环地址，isLinkLocalAddress()方法用于判断是否为链路本地地址，isSiteLocalAddress()方法用于判断是否为站点本地地址，isMulticastAddress()方法用于判断是否为组播地址，如果都不是，则为全局地址。