判断给定的IP地址是否是内网IP

来源：互联网发布：linux配置编译环境编辑：程序博客网时间：2024/05/02 01:47
/** * 判断给定的IP地址是否是内网IP *  * @author GaoHuanJie */public class Test{public boolean isInnerIP(String ipAddress){/*判断是否是内网IP*/        boolean isInnerIp = false;//默认给定IP不是内网IP        long ipNum = getIpNum(ipAddress);        /**     * 私有IP：A类  10.0.0.0    -10.255.255.255     *       B类  172.16.0.0  -172.31.255.255        *       C类  192.168.0.0 -192.168.255.255       *       D类   127.0.0.0   -127.255.255.255(环回地址)      **/       long aBegin = getIpNum("10.0.0.0");        long aEnd = getIpNum("10.255.255.255");        long bBegin = getIpNum("172.16.0.0");        long bEnd = getIpNum("172.31.255.255");        long cBegin = getIpNum("192.168.0.0");        long cEnd = getIpNum("192.168.255.255");     long dBegin = getIpNum("127.0.0.0");        long dEnd = getIpNum("127.255.255.255");    isInnerIp = isInner(ipNum,aBegin,aEnd) || isInner(ipNum,bBegin,bEnd) || isInner(ipNum,cBegin,cEnd) || isInner(ipNum,dBegin,dEnd);        return isInnerIp;} private long getIpNum(String ipAddress) {/*获取IP数*/    String [] ip = ipAddress.split("\\.");    long a = Integer.parseInt(ip[0]);    long b = Integer.parseInt(ip[1]);    long c = Integer.parseInt(ip[2]);    long d = Integer.parseInt(ip[3]);long ipNum = a * 256 * 256 * 256 + b * 256 * 256 + c * 256 + d;    return ipNum;    }   private boolean isInner(long userIp,long begin,long end){    return (userIp>=begin) && (userIp<=end);    } public static void main(String[] args) {if (new Test().isInnerIP("22.8.129.60")) {//172.16.0.119System.out.println("该IP地址为内网IP！");} else {System.out.println("该IP地址为外网IP！");}}}
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