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add Ipv4Util
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Looly
parent
f7a3b08803
commit
0e049861ee
@ -3,7 +3,7 @@
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-------------------------------------------------------------------------------------------------------------
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# 5.4.1 (2020-08-20)
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# 5.4.1 (2020-08-24)
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### 新特性
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* 【core 】 StrUtil增加firstNonXXX方法（issue#1020@Github）
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@ -14,6 +14,7 @@
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* 【core 】 增加PathUtil和FileNameUtil，分离FileUtil中部分方法
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* 【core 】 改造IndexedComparator，增加InstanceComparator
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* 【extra 】 增加CglibUtil
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* 【extra 】 增加Ipv4Util（pr#161@Gitee）
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### Bug修复#
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* 【poi 】 修复ExcelBase.isXlsx方法判断问题（issue#I1S502@Gitee）
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@ -1,440 +1,327 @@
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package cn.hutool.core.net;
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import cn.hutool.core.convert.Convert;
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import cn.hutool.core.lang.Validator;
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import cn.hutool.core.util.StrUtil;
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import java.util.*;
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import java.util.ArrayList;
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import java.util.List;
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/**
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* IP地址工具类
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* IPV4地址工具类
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*
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* <p>pr自：https://gitee.com/loolly/hutool/pulls/161</p>
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*
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* @author ZhuKun
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* @date 2020-08-21
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* @since 5.4.1
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*/
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public class Ipv4Util {
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/**
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* IP段的分割符
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*/
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public static final String IP_SPLIT_MARK = "-";
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/**
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* IP段的分割符
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*/
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public static final String IP_SPLIT_MARK = "-";
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/**
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* IP与掩码的分割符
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*/
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public static final String IP_MASK_SPLIT_MARK = "/";
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/**
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* IP与掩码的分割符
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*/
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public static final String IP_MASK_SPLIT_MARK = "/";
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/**
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* 最大掩码位
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*/
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public static final int IP_MASK_MAX = 32;
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/**
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* 最大掩码位
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*/
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public static final int IP_MASK_MAX = 32;
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/**
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* 格式化IP段
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*
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* @param ip IP地址
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* @param mask 掩码
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* @return 返回xxx.xxx.xxx.xxx/mask的格式
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*/
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public static String formatIpBlock(String ip, String mask) {
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return ip + IP_MASK_SPLIT_MARK + getMaskBitByMask(mask);
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}
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/**
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* 格式化IP段
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*
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* @param ip IP地址
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* @param mask 掩码
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* @return 返回xxx.xxx.xxx.xxx/mask的格式
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*/
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public static String formatIpBlock(String ip, String mask) {
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return ip + IP_MASK_SPLIT_MARK + getMaskBitByMask(mask);
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}
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/**
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* 智能转换IP地址集合
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*
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* @param ipRange IP段，支持X.X.X.X-X.X.X.X或X.X.X.X/X
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* @param isAll true:全量地址，false:可用地址；仅在ipRange为X.X.X.X/X时才生效
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* @return IP集
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*/
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public static List<String> list(String ipRange, boolean isAll) {
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if (ipRange.contains(IP_SPLIT_MARK)) {
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String[] range = ipRange.split(IP_SPLIT_MARK);
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return list(range[0], range[1]);
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} else if (ipRange.contains(IP_MASK_SPLIT_MARK)) {
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String[] param = ipRange.split(IP_MASK_SPLIT_MARK);
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return list(param[0], Integer.parseInt(param[1]), isAll);
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} else {
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List<String> ips = new ArrayList<>();
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ips.add(ipRange);
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return ips;
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}
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}
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/**
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* 智能转换IP地址集合
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*
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* @param ipRange IP段，支持X.X.X.X-X.X.X.X或X.X.X.X/X
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* @param isAll true:全量地址，false:可用地址；仅在ipRange为X.X.X.X/X时才生效
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* @return IP集
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*/
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public static List<String> list(String ipRange, boolean isAll) {
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if (ipRange.contains(IP_SPLIT_MARK)) {
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String[] range = ipRange.split(IP_SPLIT_MARK);
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return list(range[0], range[1]);
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} else if (ipRange.contains(IP_MASK_SPLIT_MARK)) {
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String[] param = ipRange.split(IP_MASK_SPLIT_MARK);
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return list(param[0], Integer.parseInt(param[1]), isAll);
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} else {
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List<String> ips = new ArrayList<>();
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ips.add(ipRange);
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return ips;
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}
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}
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/**
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* 根据IP地址、子网掩码获取IP地址区间
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*
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* @param ip IP地址
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* @param maskBit 掩码位，例如24、32
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* @param isAll true:全量地址，false:可用地址
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* @return
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*/
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public static List<String> list(String ip, int maskBit, boolean isAll) {
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List<String> list = new ArrayList<>();
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if (maskBit == IP_MASK_MAX) {
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if (Boolean.TRUE.equals(isAll)) {
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list.add(ip);
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}
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} else {
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String startIp = getBeginIpStr(ip, maskBit);
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String endIp = getEndIpStr(ip, maskBit);
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String subStart = startIp.split("\\.")[0] + "." + startIp.split("\\.")[1] + "." + startIp.split("\\.")[2] + ".";
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String subEnd = endIp.split("\\.")[0] + "." + endIp.split("\\.")[1] + "." + endIp.split("\\.")[2] + ".";
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if (Boolean.TRUE.equals(isAll)) {
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startIp = subStart + (Integer.parseInt(startIp.split("\\.")[3]));
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endIp = subEnd + (Integer.parseInt(endIp.split("\\.")[3]));
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} else {
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startIp = subStart + (Integer.parseInt(startIp.split("\\.")[3]) + 1);
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endIp = subEnd + (Integer.parseInt(endIp.split("\\.")[3]) - 1);
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}
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list = list(startIp, endIp);
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}
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return list;
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}
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/**
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* 根据IP地址、子网掩码获取IP地址区间
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*
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* @param ip IP地址
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* @param maskBit 掩码位，例如24、32
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* @param isAll true:全量地址，false:可用地址
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* @return 区间地址
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*/
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public static List<String> list(String ip, int maskBit, boolean isAll) {
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List<String> list = new ArrayList<>();
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if (maskBit == IP_MASK_MAX) {
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if (Boolean.TRUE.equals(isAll)) {
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list.add(ip);
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}
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} else {
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String startIp = getBeginIpStr(ip, maskBit);
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String endIp = getEndIpStr(ip, maskBit);
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String subStart = startIp.split("\\.")[0] + "." + startIp.split("\\.")[1] + "." + startIp.split("\\.")[2] + ".";
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String subEnd = endIp.split("\\.")[0] + "." + endIp.split("\\.")[1] + "." + endIp.split("\\.")[2] + ".";
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if (Boolean.TRUE.equals(isAll)) {
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startIp = subStart + (Integer.parseInt(startIp.split("\\.")[3]));
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endIp = subEnd + (Integer.parseInt(endIp.split("\\.")[3]));
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} else {
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startIp = subStart + (Integer.parseInt(startIp.split("\\.")[3]) + 1);
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endIp = subEnd + (Integer.parseInt(endIp.split("\\.")[3]) - 1);
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}
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list = list(startIp, endIp);
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}
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return list;
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}
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/**
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* 得到IP地址区间
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*
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* @param ipFrom 开始IP
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* @param ipTo 结束IP
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* @return
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*/
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public static List<String> list(String ipFrom, String ipTo) {
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List<String> ips = new ArrayList<>();
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String[] ipfromd = ipFrom.split("\\.");
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String[] iptod = ipTo.split("\\.");
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int[] int_ipf = new int[4];
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int[] int_ipt = new int[4];
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for (int i = 0; i < 4; i++) {
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int_ipf[i] = Integer.parseInt(ipfromd[i]);
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int_ipt[i] = Integer.parseInt(iptod[i]);
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}
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for (int A = int_ipf[0]; A <= int_ipt[0]; A++) {
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for (int B = (A == int_ipf[0] ? int_ipf[1] : 0); B <= (A == int_ipt[0] ? int_ipt[1]
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: 255); B++) {
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for (int C = (B == int_ipf[1] ? int_ipf[2] : 0); C <= (B == int_ipt[1] ? int_ipt[2]
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: 255); C++) {
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for (int D = (C == int_ipf[2] ? int_ipf[3] : 0); D <= (C == int_ipt[2] ? int_ipt[3]
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: 255); D++) {
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ips.add(A + "." + B + "." + C + "." + D);
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}
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}
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}
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}
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return ips;
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}
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/**
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* 得到IP地址区间
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*
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* @param ipFrom 开始IP
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* @param ipTo 结束IP
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* @return 区间地址
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*/
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public static List<String> list(String ipFrom, String ipTo) {
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final int[] ipf = Convert.convert(int[].class, StrUtil.splitToArray(ipFrom, '.'));
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final int[] ipt = Convert.convert(int[].class, StrUtil.splitToArray(ipTo, '.'));
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/**
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* 把long类型的Ip转为一般Ip类型：xx.xx.xx.xx
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*
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* @param ip
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* @return
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*/
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public static String longIpToStr(Long ip) {
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String s1 = String.valueOf((ip & 4278190080L) / 16777216L);
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String s2 = String.valueOf((ip & 16711680L) / 65536L);
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String s3 = String.valueOf((ip & 65280L) / 256L);
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String s4 = String.valueOf(ip & 255L);
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return s1 + "." + s2 + "." + s3 + "." + s4;
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}
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final List<String> ips = new ArrayList<>();
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for (int a = ipf[0]; a <= ipt[0]; a++) {
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for (int b = (a == ipf[0] ? ipf[1] : 0); b <= (a == ipt[0] ? ipt[1]
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: 255); b++) {
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for (int c = (b == ipf[1] ? ipf[2] : 0); c <= (b == ipt[1] ? ipt[2]
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: 255); c++) {
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for (int d = (c == ipf[2] ? ipf[3] : 0); d <= (c == ipt[2] ? ipt[3]
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: 255); d++) {
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ips.add(a + "." + b + "." + c + "." + d);
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}
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}
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}
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}
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return ips;
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}
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/**
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* 把xxx.xxx.xxx.xxx类型的转为long类型的IP
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*
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* @param ip 字符类型的IP
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* @return
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*/
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public static Long strIpToLong(String ip) {
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Long ipLong = 0L;
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String ipTemp = ip;
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ipLong = ipLong * 256
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+ Long.parseLong(ipTemp.substring(0, ipTemp.indexOf(".")));
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ipTemp = ipTemp.substring(ipTemp.indexOf(".") + 1);
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ipLong = ipLong * 256
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+ Long.parseLong(ipTemp.substring(0, ipTemp.indexOf(".")));
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ipTemp = ipTemp.substring(ipTemp.indexOf(".") + 1);
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ipLong = ipLong * 256
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+ Long.parseLong(ipTemp.substring(0, ipTemp.indexOf(".")));
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ipTemp = ipTemp.substring(ipTemp.indexOf(".") + 1);
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ipLong = ipLong * 256 + Long.parseLong(ipTemp);
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return ipLong;
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}
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/**
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* 根据long值获取ip v4地址：xx.xx.xx.xx
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*
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* @param longIP IP的long表示形式
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* @return IP V4 地址
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*/
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public static String longToIpv4(long longIP) {
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final StringBuilder sb = StrUtil.builder();
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// 直接右移24位
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sb.append((longIP >>> 24));
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sb.append(".");
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// 将高8位置0，然后右移16位
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sb.append(((longIP & 0x00FFFFFF) >>> 16));
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sb.append(".");
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sb.append(((longIP & 0x0000FFFF) >>> 8));
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sb.append(".");
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sb.append((longIP & 0x000000FF));
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return sb.toString();
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}
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/**
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* 根据掩码位获取掩码
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*
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* @param maskBit 掩码位数，如"28"、"30"
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* @return
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*/
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public static String getMaskByMaskBit(String maskBit) {
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return StrUtil.isEmpty(maskBit) ? "error, maskBit is null !"
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: maskBitMap().get(maskBit);
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}
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/**
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* 根据ip地址(xxx.xxx.xxx.xxx)计算出long型的数据
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*
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* @param strIP IP V4 地址
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* @return long值
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*/
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public static long ipv4ToLong(String strIP) {
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if (Validator.isIpv4(strIP)) {
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long[] ip = new long[4];
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// 先找到IP地址字符串中.的位置
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int position1 = strIP.indexOf(".");
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int position2 = strIP.indexOf(".", position1 + 1);
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int position3 = strIP.indexOf(".", position2 + 1);
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// 将每个.之间的字符串转换成整型
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ip[0] = Long.parseLong(strIP.substring(0, position1));
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ip[1] = Long.parseLong(strIP.substring(position1 + 1, position2));
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ip[2] = Long.parseLong(strIP.substring(position2 + 1, position3));
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ip[3] = Long.parseLong(strIP.substring(position3 + 1));
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return (ip[0] << 24) + (ip[1] << 16) + (ip[2] << 8) + ip[3];
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}
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return 0;
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}
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/**
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* 根据 ip/掩码位 计算IP段的起始IP（字符串型）
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*
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* @param ip 给定的IP，如218.240.38.69
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* @param maskBit 给定的掩码位，如30
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* @return 起始IP的字符串表示
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*/
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public static String getBeginIpStr(String ip, int maskBit) {
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return longIpToStr(getBeginIpLong(ip, maskBit));
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}
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/**
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* 根据 ip/掩码位 计算IP段的起始IP（字符串型）
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*
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* @param ip 给定的IP，如218.240.38.69
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* @param maskBit 给定的掩码位，如30
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* @return 起始IP的字符串表示
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*/
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public static String getBeginIpStr(String ip, int maskBit) {
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return longToIpv4(getBeginIpLong(ip, maskBit));
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}
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/**
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* 根据 ip/掩码位 计算IP段的起始IP（Long型）
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*
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* @param ip 给定的IP，如218.240.38.69
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* @param maskBit 给定的掩码位，如30
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* @return 起始IP的长整型表示
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*/
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private static Long getBeginIpLong(String ip, int maskBit) {
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return strIpToLong(ip) & strIpToLong(getMaskByMaskBit(maskBit));
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}
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/**
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* 根据 ip/掩码位 计算IP段的起始IP（Long型）
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*
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* @param ip 给定的IP，如218.240.38.69
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* @param maskBit 给定的掩码位，如30
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* @return 起始IP的长整型表示
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*/
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private static Long getBeginIpLong(String ip, int maskBit) {
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return ipv4ToLong(ip) & ipv4ToLong(getMaskByMaskBit(maskBit));
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}
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/**
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* 根据 ip/掩码位 计算IP段的终止IP（字符串型）
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*
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* @param ip 给定的IP，如218.240.38.69
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* @param maskBit 给定的掩码位，如30
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* @return 终止IP的字符串表示
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*/
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public static String getEndIpStr(String ip, int maskBit) {
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return longIpToStr(getEndIpLong(ip, maskBit));
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}
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/**
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* 根据 ip/掩码位 计算IP段的终止IP（字符串型）
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*
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* @param ip 给定的IP，如218.240.38.69
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* @param maskBit 给定的掩码位，如30
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* @return 终止IP的字符串表示
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*/
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public static String getEndIpStr(String ip, int maskBit) {
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return longToIpv4(getEndIpLong(ip, maskBit));
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}
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/**
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* 根据 ip/掩码位 计算IP段的终止IP（Long型）
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* 注：此接口返回负数，请使用转成字符串后再转Long型
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*
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* @param ip 给定的IP，如218.240.38.69
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* @param maskBit 给定的掩码位，如30
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* @return 终止IP的长整型表示
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*/
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private static Long getEndIpLong(String ip, int maskBit) {
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return getBeginIpLong(ip, maskBit)
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+ ~strIpToLong(getMaskByMaskBit(maskBit));
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}
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/**
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* 根据子网掩码转换为掩码位
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*
|
||||
* @param mask 掩码，例如xxx.xxx.xxx.xxx
|
||||
* @return 掩码位，例如32
|
||||
*/
|
||||
public static int getMaskBitByMask(String mask) {
|
||||
StringBuffer sbf;
|
||||
String str;
|
||||
int inetmask = 0;
|
||||
int count;
|
||||
for (String s : StrUtil.split(mask, ',')) {
|
||||
sbf = toBin(Integer.parseInt(s));
|
||||
str = sbf.reverse().toString();
|
||||
count = 0;
|
||||
for (int i = 0; i < str.length(); i++) {
|
||||
i = str.indexOf('1', i);
|
||||
if (i == -1) {
|
||||
break;
|
||||
}
|
||||
count++;
|
||||
}
|
||||
inetmask += count;
|
||||
}
|
||||
return inetmask;
|
||||
}
|
||||
|
||||
/**
|
||||
* 计算子网大小
|
||||
*
|
||||
* @param maskBit 掩码位
|
||||
* @param isAll true:全量地址，false:可用地址
|
||||
* @return 地址总数
|
||||
*/
|
||||
public static int countByMaskBit(int maskBit, boolean isAll) {
|
||||
//如果是可用地址的情况，掩码位小于等于0或大于等于32，则可用地址为0
|
||||
boolean isZero = !isAll && (maskBit <= 0 || maskBit >= 32);
|
||||
if (isZero) {
|
||||
return 0;
|
||||
}
|
||||
if (isAll) {
|
||||
return (int) Math.pow(2, 32 - maskBit);
|
||||
} else {
|
||||
return (int) Math.pow(2, 32 - maskBit) - 2;
|
||||
}
|
||||
}
|
||||
|
||||
/**
|
||||
* 根据子网掩码转换为掩码位
|
||||
*
|
||||
* @param mask 掩码，例如xxx.xxx.xxx.xxx
|
||||
* @return 掩码位，例如32
|
||||
*/
|
||||
public static int getMaskBitByMask(String mask) {
|
||||
StringBuffer sbf;
|
||||
String str;
|
||||
int inetmask = 0, count = 0;
|
||||
String[] ipList = mask.split("\\.");
|
||||
for (int n = 0; n < ipList.length; n++) {
|
||||
sbf = toBin(Integer.parseInt(ipList[n]));
|
||||
str = sbf.reverse().toString();
|
||||
count = 0;
|
||||
for (int i = 0; i < str.length(); i++) {
|
||||
i = str.indexOf('1', i);
|
||||
if (i == -1) {
|
||||
break;
|
||||
}
|
||||
count++;
|
||||
}
|
||||
inetmask += count;
|
||||
}
|
||||
return inetmask;
|
||||
}
|
||||
/**
|
||||
* 根据掩码位获取掩码
|
||||
*
|
||||
* @param maskBit 掩码位
|
||||
* @return 掩码
|
||||
*/
|
||||
public static String getMaskByMaskBit(int maskBit) {
|
||||
return MaskBit.get(maskBit);
|
||||
}
|
||||
|
||||
/**
|
||||
* 计算子网大小
|
||||
*
|
||||
* @param maskBit 掩码位
|
||||
* @param isAll true:全量地址，false:可用地址
|
||||
* @return 地址总数
|
||||
*/
|
||||
public static int countByMaskBit(int maskBit, boolean isAll) {
|
||||
//如果是可用地址的情况，掩码位小于等于0或大于等于32，则可用地址为0
|
||||
boolean isZero = !isAll && (maskBit <= 0 || maskBit >= 32);
|
||||
if (isZero) {
|
||||
return 0;
|
||||
}
|
||||
if (isAll) {
|
||||
return (int) Math.pow(2, 32 - maskBit);
|
||||
} else {
|
||||
return (int) Math.pow(2, 32 - maskBit) - 2;
|
||||
}
|
||||
}
|
||||
/**
|
||||
* 根据开始IP与结束IP计算掩码
|
||||
*
|
||||
* @param fromIp 开始IP
|
||||
* @param toIp 结束IP
|
||||
* @return 掩码x.x.x.x
|
||||
*/
|
||||
public static String getMaskByIpRange(String fromIp, String toIp) {
|
||||
long toIpLong = ipv4ToLong(toIp);
|
||||
long fromIpLong = ipv4ToLong(fromIp);
|
||||
if (fromIpLong > toIpLong) {
|
||||
throw new IllegalArgumentException("to IP must be greater than from IP!");
|
||||
}
|
||||
String[] fromIpSplit = StrUtil.splitToArray(fromIp, '.');
|
||||
String[] toIpSplit = StrUtil.splitToArray(toIp, '.');
|
||||
StringBuilder mask = new StringBuilder();
|
||||
for (int i = 0; i < toIpSplit.length; i++) {
|
||||
mask.append(255 - Integer.parseInt(toIpSplit[i]) + Integer.parseInt(fromIpSplit[i])).append(".");
|
||||
}
|
||||
return mask.substring(0, mask.length() - 1);
|
||||
}
|
||||
|
||||
private static StringBuffer toBin(int x) {
|
||||
StringBuffer result = new StringBuffer();
|
||||
result.append(x % 2);
|
||||
x /= 2;
|
||||
while (x > 0) {
|
||||
result.append(x % 2);
|
||||
x /= 2;
|
||||
}
|
||||
return result;
|
||||
}
|
||||
/**
|
||||
* 计算IP区间有多少个IP
|
||||
*
|
||||
* @param fromIp 开始IP
|
||||
* @param toIp 结束IP
|
||||
* @return IP数量
|
||||
*/
|
||||
public static int countByIpRange(String fromIp, String toIp) {
|
||||
long toIpLong = ipv4ToLong(toIp);
|
||||
long fromIpLong = ipv4ToLong(fromIp);
|
||||
if (fromIpLong > toIpLong) {
|
||||
throw new IllegalArgumentException("to IP must be greater than from IP!");
|
||||
}
|
||||
int count = 1;
|
||||
int[] fromIpSplit = StrUtil.split(fromIp, '.').stream().mapToInt(Integer::parseInt).toArray();
|
||||
int[] toIpSplit = StrUtil.split(toIp, '.').stream().mapToInt(Integer::parseInt).toArray();
|
||||
for (int i = fromIpSplit.length - 1; i >= 0; i--) {
|
||||
count += (toIpSplit[i] - fromIpSplit[i]) * Math.pow(256, fromIpSplit.length - i - 1);
|
||||
}
|
||||
return count;
|
||||
}
|
||||
|
||||
/**
|
||||
* 存储着所有的掩码位及对应的掩码 key:掩码位 value:掩码（x.x.x.x）
|
||||
*
|
||||
* @return
|
||||
*/
|
||||
private static Map<String, String> maskBitMap() {
|
||||
Map<String, String> maskBit = new HashMap<>(32);
|
||||
maskBit.put("1", "128.0.0.0");
|
||||
maskBit.put("2", "192.0.0.0");
|
||||
maskBit.put("3", "224.0.0.0");
|
||||
maskBit.put("4", "240.0.0.0");
|
||||
maskBit.put("5", "248.0.0.0");
|
||||
maskBit.put("6", "252.0.0.0");
|
||||
maskBit.put("7", "254.0.0.0");
|
||||
maskBit.put("8", "255.0.0.0");
|
||||
maskBit.put("9", "255.128.0.0");
|
||||
maskBit.put("10", "255.192.0.0");
|
||||
maskBit.put("11", "255.224.0.0");
|
||||
maskBit.put("12", "255.240.0.0");
|
||||
maskBit.put("13", "255.248.0.0");
|
||||
maskBit.put("14", "255.252.0.0");
|
||||
maskBit.put("15", "255.254.0.0");
|
||||
maskBit.put("16", "255.255.0.0");
|
||||
maskBit.put("17", "255.255.128.0");
|
||||
maskBit.put("18", "255.255.192.0");
|
||||
maskBit.put("19", "255.255.224.0");
|
||||
maskBit.put("20", "255.255.240.0");
|
||||
maskBit.put("21", "255.255.248.0");
|
||||
maskBit.put("22", "255.255.252.0");
|
||||
maskBit.put("23", "255.255.254.0");
|
||||
maskBit.put("24", "255.255.255.0");
|
||||
maskBit.put("25", "255.255.255.128");
|
||||
maskBit.put("26", "255.255.255.192");
|
||||
maskBit.put("27", "255.255.255.224");
|
||||
maskBit.put("28", "255.255.255.240");
|
||||
maskBit.put("29", "255.255.255.248");
|
||||
maskBit.put("30", "255.255.255.252");
|
||||
maskBit.put("31", "255.255.255.254");
|
||||
maskBit.put("32", "255.255.255.255");
|
||||
return maskBit;
|
||||
}
|
||||
//-------------------------------------------------------------------------------- Private method start
|
||||
|
||||
/**
|
||||
* 根据掩码位获取掩码
|
||||
*
|
||||
* @param maskBit
|
||||
* @return
|
||||
*/
|
||||
public static String getMaskByMaskBit(int maskBit) {
|
||||
switch (maskBit) {
|
||||
case 1:
|
||||
return "128.0.0.0";
|
||||
case 2:
|
||||
return "192.0.0.0";
|
||||
case 3:
|
||||
return "224.0.0.0";
|
||||
case 4:
|
||||
return "240.0.0.0";
|
||||
case 5:
|
||||
return "248.0.0.0";
|
||||
case 6:
|
||||
return "252.0.0.0";
|
||||
case 7:
|
||||
return "254.0.0.0";
|
||||
case 8:
|
||||
return "255.0.0.0";
|
||||
case 9:
|
||||
return "255.128.0.0";
|
||||
case 10:
|
||||
return "255.192.0.0";
|
||||
case 11:
|
||||
return "255.224.0.0";
|
||||
case 12:
|
||||
return "255.240.0.0";
|
||||
case 13:
|
||||
return "255.248.0.0";
|
||||
case 14:
|
||||
return "255.252.0.0";
|
||||
case 15:
|
||||
return "255.254.0.0";
|
||||
case 16:
|
||||
return "255.255.0.0";
|
||||
case 17:
|
||||
return "255.255.128.0";
|
||||
case 18:
|
||||
return "255.255.192.0";
|
||||
case 19:
|
||||
return "255.255.224.0";
|
||||
case 20:
|
||||
return "255.255.240.0";
|
||||
case 21:
|
||||
return "255.255.248.0";
|
||||
case 22:
|
||||
return "255.255.252.0";
|
||||
case 23:
|
||||
return "255.255.254.0";
|
||||
case 24:
|
||||
return "255.255.255.0";
|
||||
case 25:
|
||||
return "255.255.255.128";
|
||||
case 26:
|
||||
return "255.255.255.192";
|
||||
case 27:
|
||||
return "255.255.255.224";
|
||||
case 28:
|
||||
return "255.255.255.240";
|
||||
case 29:
|
||||
return "255.255.255.248";
|
||||
case 30:
|
||||
return "255.255.255.252";
|
||||
case 31:
|
||||
return "255.255.255.254";
|
||||
case 32:
|
||||
return "255.255.255.255";
|
||||
default:
|
||||
return "";
|
||||
}
|
||||
}
|
||||
/**
|
||||
* 根据 ip/掩码位 计算IP段的终止IP（Long型）
|
||||
* 注：此接口返回负数，请使用转成字符串后再转Long型
|
||||
*
|
||||
* @param ip 给定的IP，如218.240.38.69
|
||||
* @param maskBit 给定的掩码位，如30
|
||||
* @return 终止IP的长整型表示
|
||||
*/
|
||||
private static Long getEndIpLong(String ip, int maskBit) {
|
||||
return getBeginIpLong(ip, maskBit)
|
||||
+ ~ipv4ToLong(getMaskByMaskBit(maskBit));
|
||||
}
|
||||
|
||||
/**
|
||||
* 根据开始IP与结束IP计算掩码
|
||||
*
|
||||
* @param fromIp 开始IP
|
||||
* @param toIp 结束IP
|
||||
* @return 掩码x.x.x.x
|
||||
* @throws Exception
|
||||
*/
|
||||
public static String getMaskByIpRange(String fromIp, String toIp) throws Exception {
|
||||
Long toIpLong = strIpToLong(toIp);
|
||||
Long fromIpLong = strIpToLong(fromIp);
|
||||
if (fromIpLong > toIpLong) {
|
||||
throw new Exception("开始IP大与结束IP");
|
||||
}
|
||||
String[] fromIpSplit = fromIp.split("\\.");
|
||||
String[] toIpSplit = toIp.split("\\.");
|
||||
StringBuilder mask = new StringBuilder();
|
||||
for (int i = 0; i < toIpSplit.length; i++) {
|
||||
mask.append(255 - Integer.parseInt(toIpSplit[i]) + Integer.parseInt(fromIpSplit[i])).append(".");
|
||||
}
|
||||
return mask.substring(0, mask.length() - 1);
|
||||
}
|
||||
|
||||
/**
|
||||
* 计算IP区间有多少个IP
|
||||
*
|
||||
* @param fromIp 开始IP
|
||||
* @param toIp 结束IP
|
||||
* @return IP数量
|
||||
* @throws Exception
|
||||
*/
|
||||
public static int countByIpRange(String fromIp, String toIp) throws Exception {
|
||||
Long toIpLong = strIpToLong(toIp);
|
||||
Long fromIpLong = strIpToLong(fromIp);
|
||||
if (fromIpLong > toIpLong) {
|
||||
throw new Exception("开始IP大与结束IP");
|
||||
}
|
||||
int count = 1;
|
||||
int[] fromIpSplit = Arrays.stream(fromIp.split("\\.")).mapToInt(Integer::parseInt).toArray();
|
||||
int[] toIpSplit = Arrays.stream(toIp.split("\\.")).mapToInt(Integer::parseInt).toArray();
|
||||
for (int i = fromIpSplit.length - 1; i >= 0; i--) {
|
||||
count += (toIpSplit[i] - fromIpSplit[i]) * Math.pow(256, fromIpSplit.length - i - 1);
|
||||
}
|
||||
return count;
|
||||
}
|
||||
private static StringBuffer toBin(int x) {
|
||||
StringBuffer result = new StringBuffer();
|
||||
result.append(x % 2);
|
||||
x /= 2;
|
||||
while (x > 0) {
|
||||
result.append(x % 2);
|
||||
x /= 2;
|
||||
}
|
||||
return result;
|
||||
}
|
||||
//-------------------------------------------------------------------------------- Private method end
|
||||
}
|
||||
|
||||
60
hutool-core/src/main/java/cn/hutool/core/net/MaskBit.java
Normal file
60
hutool-core/src/main/java/cn/hutool/core/net/MaskBit.java
Normal file
@ -0,0 +1,60 @@
|
||||
package cn.hutool.core.net;
|
||||
|
||||
import java.util.HashMap;
|
||||
import java.util.Map;
|
||||
|
||||
/**
|
||||
* 掩码位和掩码之间的Map对应
|
||||
*
|
||||
* @since 5.4.1
|
||||
* @author looly
|
||||
*/
|
||||
public class MaskBit {
|
||||
|
||||
private static final Map<Integer, String> maskBitMap;
|
||||
static {
|
||||
maskBitMap = new HashMap<>(32);
|
||||
maskBitMap.put(1, "128.0.0.0");
|
||||
maskBitMap.put(2, "192.0.0.0");
|
||||
maskBitMap.put(3, "224.0.0.0");
|
||||
maskBitMap.put(4, "240.0.0.0");
|
||||
maskBitMap.put(5, "248.0.0.0");
|
||||
maskBitMap.put(6, "252.0.0.0");
|
||||
maskBitMap.put(7, "254.0.0.0");
|
||||
maskBitMap.put(8, "255.0.0.0");
|
||||
maskBitMap.put(9, "255.128.0.0");
|
||||
maskBitMap.put(10, "255.192.0.0");
|
||||
maskBitMap.put(11, "255.224.0.0");
|
||||
maskBitMap.put(12, "255.240.0.0");
|
||||
maskBitMap.put(13, "255.248.0.0");
|
||||
maskBitMap.put(14, "255.252.0.0");
|
||||
maskBitMap.put(15, "255.254.0.0");
|
||||
maskBitMap.put(16, "255.255.0.0");
|
||||
maskBitMap.put(17, "255.255.128.0");
|
||||
maskBitMap.put(18, "255.255.192.0");
|
||||
maskBitMap.put(19, "255.255.224.0");
|
||||
maskBitMap.put(20, "255.255.240.0");
|
||||
maskBitMap.put(21, "255.255.248.0");
|
||||
maskBitMap.put(22, "255.255.252.0");
|
||||
maskBitMap.put(23, "255.255.254.0");
|
||||
maskBitMap.put(24, "255.255.255.0");
|
||||
maskBitMap.put(25, "255.255.255.128");
|
||||
maskBitMap.put(26, "255.255.255.192");
|
||||
maskBitMap.put(27, "255.255.255.224");
|
||||
maskBitMap.put(28, "255.255.255.240");
|
||||
maskBitMap.put(29, "255.255.255.248");
|
||||
maskBitMap.put(30, "255.255.255.252");
|
||||
maskBitMap.put(31, "255.255.255.254");
|
||||
maskBitMap.put(32, "255.255.255.255");
|
||||
}
|
||||
|
||||
/**
|
||||
* 根据掩码位获取掩码
|
||||
*
|
||||
* @param maskBit 掩码位
|
||||
* @return 掩码
|
||||
*/
|
||||
public static String get(int maskBit) {
|
||||
return maskBitMap.get(maskBit);
|
||||
}
|
||||
}
|
||||
@ -5,7 +5,6 @@ import cn.hutool.core.exceptions.UtilException;
|
||||
import cn.hutool.core.io.IORuntimeException;
|
||||
import cn.hutool.core.io.IoUtil;
|
||||
import cn.hutool.core.lang.Filter;
|
||||
import cn.hutool.core.lang.Validator;
|
||||
import cn.hutool.core.util.RandomUtil;
|
||||
import cn.hutool.core.util.StrUtil;
|
||||
|
||||
@ -58,19 +57,10 @@ public class NetUtil {
|
||||
*
|
||||
* @param longIP IP的long表示形式
|
||||
* @return IP V4 地址
|
||||
* @see Ipv4Util#longToIpv4(long)
|
||||
*/
|
||||
public static String longToIpv4(long longIP) {
|
||||
final StringBuilder sb = StrUtil.builder();
|
||||
// 直接右移24位
|
||||
sb.append((longIP >>> 24));
|
||||
sb.append(".");
|
||||
// 将高8位置0，然后右移16位
|
||||
sb.append(((longIP & 0x00FFFFFF) >>> 16));
|
||||
sb.append(".");
|
||||
sb.append(((longIP & 0x0000FFFF) >>> 8));
|
||||
sb.append(".");
|
||||
sb.append((longIP & 0x000000FF));
|
||||
return sb.toString();
|
||||
return Ipv4Util.longToIpv4(longIP);
|
||||
}
|
||||
|
||||
/**
|
||||
@ -78,22 +68,10 @@ public class NetUtil {
|
||||
*
|
||||
* @param strIP IP V4 地址
|
||||
* @return long值
|
||||
* @see Ipv4Util#ipv4ToLong(String)
|
||||
*/
|
||||
public static long ipv4ToLong(String strIP) {
|
||||
if (Validator.isIpv4(strIP)) {
|
||||
long[] ip = new long[4];
|
||||
// 先找到IP地址字符串中.的位置
|
||||
int position1 = strIP.indexOf(".");
|
||||
int position2 = strIP.indexOf(".", position1 + 1);
|
||||
int position3 = strIP.indexOf(".", position2 + 1);
|
||||
// 将每个.之间的字符串转换成整型
|
||||
ip[0] = Long.parseLong(strIP.substring(0, position1));
|
||||
ip[1] = Long.parseLong(strIP.substring(position1 + 1, position2));
|
||||
ip[2] = Long.parseLong(strIP.substring(position2 + 1, position3));
|
||||
ip[3] = Long.parseLong(strIP.substring(position3 + 1));
|
||||
return (ip[0] << 24) + (ip[1] << 16) + (ip[2] << 8) + ip[3];
|
||||
}
|
||||
return 0;
|
||||
return Ipv4Util.ipv4ToLong(strIP);
|
||||
}
|
||||
|
||||
/**
|
||||
|
||||
@ -92,10 +92,11 @@ public class ThreadUtil {
|
||||
* 获得一个新的线程池，并指定最大任务队列大小<br>
|
||||
* 如果maximumPoolSize >= corePoolSize，在没有新任务加入的情况下，多出的线程将最多保留60s
|
||||
*
|
||||
* @param corePoolSize 初始线程池大小
|
||||
* @param maximumPoolSize 最大线程池大小
|
||||
* @param corePoolSize 初始线程池大小
|
||||
* @param maximumPoolSize 最大线程池大小
|
||||
* @param maximumQueueSize 最大任务队列大小
|
||||
* @return {@link ThreadPoolExecutor}
|
||||
* @since 5.4.1
|
||||
*/
|
||||
public static ExecutorService newExecutor(int corePoolSize, int maximumPoolSize, int maximumQueueSize) {
|
||||
return ExecutorBuilder.create()
|
||||
|
||||
Loading…
x
Reference in New Issue
Block a user