myaction.utils.IPMask Maven / Gradle / Ivy
package myaction.utils;
public class IPMask {
private long ipNet = 0;
private long ipMask = 0; //初始化时，会做位翻转。即，默认为: 255.255.255.255
private IPMask() {
}
/**
* 解析IP地址
* @param ipNet
* @return 解析失败，返回null。成功返回 IPMask 对象
*/
public static IPMask parse(String ipNet) {
if(ipNet == null) {
return null;
}
ipNet = ipNet.trim();
String[] arr = StringUtil.split(ipNet, '/');
long ipNum = convertIP(arr[0]);
if(ipNum < 0) {
return null;
}
int maskLen = 32;
if(arr.length > 1) {
maskLen = MathUtil.parseInt(arr[1]);
maskLen = Math.max(0, maskLen);
maskLen = Math.min(32, maskLen);
}
IPMask mask = new IPMask();
maskLen = 32 - maskLen; //反转
for(int i=0; i