java中实现比对ip地址是否在一个ip地址段中

一、假如一个ip段192.168.0.1-192.168.0.255

String ipd = "192.168.0.1-192.168.0.255";

二、目标ip为192.168.0.125

String userip = "192.168.0.125";

三、实现

??????????????? boolean flag = false;

??? ??? ??? ??? String[] ipdd = ipd.split("-");
??? ??? ??? ??? String ipbg = ipdd[0].replace(".", "");
??? ??? ??? ??? String ipend = ipadd[1].replace(".", "");

??? ??? ??? ??? if (Long.parseLong(userip) >= Long.parseLong(ipbg)
??? ??? ??? ??? ??? ??? && Long.parseLong(userip) <= Long.parseLong(ipend)) {
??? ??? ??? ??? ??? flag = true;
??? ??? ??? ??? }

四、判断flag就可以了。