判断ip地址是否在ip段的方法

 

/**

* 根据ip地址判断是否来之支付宝的ip

* @param ip

* @return

* @throws AlipayException 

*/

public static boolean checkIsAlipayIp(String checkIp) throws AlipayException{

 

Pattern pattern = Pattern.compile("\\b((?!\\d\\d\\d)\\d+|1\\d\\d|2[0-4]\\d|25[0-5])\\.((?!\\d\\d\\d)\\d+|1\\d\\d|2[0-4]\\d|25[0-5])\\.((?!\\d\\d\\d)\\d+|1\\d\\d|2[0-4]\\d|25[0-5])\\.((?!\\d\\d\\d)\\d+|1\\d\\d|2[0-4]\\d|25[0-5])\\b");

Matcher matcher = pattern.matcher(checkIp);

if(!matcher.matches()){

throw new AlipayException(AlipayExceptionConstants.IP_ADDRESS_NOT_MATCH, checkIp);

}

long cur = getIpNum(checkIp);

for(AlipayIpRegionEnum e:AlipayIpRegionEnum.values()){

long start = getIpNum(e.getStartIp());

long end = getIpNum(e.getEndIp());

if(cur>=start && cur<=end){

return true;

}

}

return false;

}

 

 

public static long getIpNum(String ipAddress){

        String[] ip = ipAddress.split("\\.");

        return Long.parseLong(ip[0]) * 256 * 256 * 256 + Long.parseLong(ip[1]) * 256 * 256 + Long.parseLong(ip[2]) * 256 + Long.parseLong(ip[3]); 

    }