判断给定的IP地址是否是内网IP

/**
* 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")) {//172.16.0.119
System.out.println("该IP地址为内网IP！");
} else {
System.out.println("该IP地址为外网IP！");
}
}
}