73 lines
2.1 KiB
Java
73 lines
2.1 KiB
Java
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package com.fuint.utils;
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import org.slf4j.Logger;
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import org.slf4j.LoggerFactory;
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import javax.servlet.http.HttpServletRequest;
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/**
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* IP地址工具类
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*
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* Created by: FSQ
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* CopyRight https://www.fuint.cn
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*/
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public class IpUtil {
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public static final Logger logger = LoggerFactory.getLogger(IpUtil.class);
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/**
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* 校验IP是否在指定的段
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*
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* @param ipSection IP网段，如： 10.167.7.1-10.167.7.255
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* @param ip Ip地址，如：10.167.7.56
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* @return boolean
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*/
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public static boolean ipIsValid(String ipSection, String ip) {
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if (ipSection == null) {
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throw new NullPointerException("IP段不能为空！");
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}
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if (ip == null) {
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throw new NullPointerException("IP不能为空！");
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}
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ipSection = ipSection.trim();
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ip = ip.trim();
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final String REGX_IP = "((25[0-5]|2[0-4]\\d|1\\d{2}|[1-9]\\d|\\d)\\.){3}(25[0-5]|2[0-4]\\d|1\\d{2}|[1-9]\\d|\\d)";
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final String REGX_IPB = REGX_IP + "\\-" + REGX_IP;
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if (!ipSection.matches(REGX_IPB) || !ip.matches(REGX_IP))
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return false;
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int idx = ipSection.indexOf('-');
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String[] sips = ipSection.substring(0, idx).split("\\.");
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String[] sipe = ipSection.substring(idx + 1).split("\\.");
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String[] sipt = ip.split("\\.");
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long ips = 0L, ipe = 0L, ipt = 0L;
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for (int i = 0; i < 4; ++i) {
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ips = ips << 8 | Integer.parseInt(sips[i]);
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ipe = ipe << 8 | Integer.parseInt(sipe[i]);
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ipt = ipt << 8 | Integer.parseInt(sipt[i]);
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}
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if (ips > ipe) {
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long t = ips;
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ips = ipe;
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ipe = t;
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}
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return ips <= ipt && ipt <= ipe;
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}
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/**
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* 校验IP是否在指定的段列表
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*
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* @param ip
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* @param ipSections
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* @return boolean
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*/
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public static boolean ipIsValid(String ip, String... ipSections) {
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for (String ipSection : ipSections) {
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if (ipIsValid(ipSection, ip)) {
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return true;
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}
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}
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return false;
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}
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}
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