public class IpUtis { /** * 把long类型的Ip转为一般Ip类型:xx.xx.xx.xx * * @param ip * @return */ public static String getIpFromLong(Long ip) { String s1 = String.valueOf((ip & 4278190080L) / 16777216L); String s2 = String.valueOf((ip & 16711680L) / 65536L); String s3 = String.valueOf((ip & 65280L) / 256L); String s4 = String.valueOf(ip & 255L); return s1 + "." + s2 + "." + s3 + "." + s4; } /** * 把xx.xx.xx.xx类型的转为long类型的 * * @param ip * @return */ public static Long getIpFromString(String ip) { Long ipLong = 0L; String ipTemp = ip; ipLong = ipLong * 256 + Long.parseLong(ipTemp.substring(0, ipTemp.indexOf("."))); ipTemp = ipTemp.substring(ipTemp.indexOf(".") + 1, ipTemp.length()); ipLong = ipLong * 256 + Long.parseLong(ipTemp.substring(0, ipTemp.indexOf("."))); ipTemp = ipTemp.substring(ipTemp.indexOf(".") + 1, ipTemp.length()); ipLong = ipLong * 256 + Long.parseLong(ipTemp.substring(0, ipTemp.indexOf("."))); ipTemp = ipTemp.substring(ipTemp.indexOf(".") + 1, ipTemp.length()); ipLong = ipLong * 256 + Long.parseLong(ipTemp); return ipLong; } /** * 根据掩码位获取掩码 * * @param maskBit 掩码位数,如"28"、"30" * @return */ public static String getMaskByMaskBit(String maskBit) { return StringUtils.isEmpty(maskBit) ? "error, maskBit is null !" : maskBitMap().get(maskBit); } /** * 根据 ip/掩码位 计算IP段的起始IP 如 IP串 218.240.38.69/30 * * @param ip 给定的IP,如218.240.38.69 * @param maskBit 给定的掩码位,如30 * @return 起始IP的字符串表示 */ public static String getBeginIpStr(String ip, String maskBit) { return getIpFromLong(getBeginIpLong(ip, maskBit)); } /** * 根据 ip/掩码位 计算IP段的起始IP 如 IP串 218.240.38.69/30 * * @param ip 给定的IP,如218.240.38.69 * @param maskBit 给定的掩码位,如30 * @return 起始IP的长整型表示 */ public static Long getBeginIpLong(String ip, String maskBit) { return getIpFromString(ip) & getIpFromString(getMaskByMaskBit(maskBit)); } /** * 根据 ip/掩码位 计算IP段的终止IP 如 IP串 218.240.38.69/30 * * @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的字符串表示 */ public static String getEndIpStr(String ip, String maskBit) { return getIpFromLong(getEndIpLong(ip, maskBit)); } /** * 根据 ip/掩码位 计算IP段的终止IP 如 IP串 218.240.38.69/30 * * @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 */ public static Long getEndIpLong(String ip, String maskBit) { return getBeginIpLong(ip, maskBit) + ~getIpFromString(getMaskByMaskBit(maskBit)); } /** * 根据子网掩码转换为掩码位 如 255.255.255.252转换为掩码位 为 30 * * @param netmarks * @return */ public static int getNetMask(String netmarks) { StringBuffer sbf; String str; int inetmask = 0, count = 0; String[] ipList = netmarks.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; } /** * 计算子网大小 * * @param netmask 掩码位 * @return */ public static int getPoolMax(int maskBit) { if (maskBit <= 0 || maskBit >= 32) { return 0; } return (int) Math.pow(2, 32 - maskBit) - 2; } 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; } /* * 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) */ private static Map<String, String> maskBitMap() { Map<String, String> maskBit = new HashMap<String, String>(); 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; } /** * 判断某个ip是否在一个网段内 ip/mask IP+掩码 */ public static boolean isInRange(String ip, String cidr) { String[] ips = ip.split("\\."); int ipAddr = (Integer.parseInt(ips[0]) << 24) | (Integer.parseInt(ips[1]) << 16) | (Integer.parseInt(ips[2]) << 8) | Integer.parseInt(ips[3]); int type = Integer.parseInt(cidr.replaceAll(".*/", "")); int mask = 0xFFFFFFFF << (32 - type); String cidrIp = cidr.replaceAll("/.*", ""); String[] cidrIps = cidrIp.split("\\."); int cidrIpAddr = (Integer.parseInt(cidrIps[0]) << 24) | (Integer.parseInt(cidrIps[1]) << 16) | (Integer.parseInt(cidrIps[2]) << 8) | Integer.parseInt(cidrIps[3]); return (ipAddr & mask) == (cidrIpAddr & mask); } /** * 判断IP地址是否内网IP * * @param ipAddress * @return */ public static boolean isInnerIP(String ipAddress) { boolean isInnerIp = false; long ipNum = getIpNum(ipAddress); /** * 私有IP:A类 10.0.0.0-10.255.255.255 B类 172.16.0.0-172.31.255.255 C类 192.168.0.0-192.168.255.255 当然,还有127这个网段是环回地址 **/ long aBegin = getIpNum("10.0.0.0"); long aEnd = getIpNum("10.255.255.255"); long bBegin = getIpNum("172.16.0.0"); long bEnd = getIpNum("172.31.255.255"); long cBegin = getIpNum("192.168.0.0"); long cEnd = getIpNum("192.168.255.255"); isInnerIp = isInner(ipNum, aBegin, aEnd) || isInner(ipNum, bBegin, bEnd) || isInner(ipNum, cBegin, cEnd) || ipAddress.equals("127.0.0.1"); return isInnerIp; } private static long getIpNum(String ipAddress) { String[] ip = ipAddress.split("\\."); long a = Integer.parseInt(ip[0]); long b = Integer.parseInt(ip[1]); long c = Integer.parseInt(ip[2]); long d = Integer.parseInt(ip[3]); long ipNum = a * 256 * 256 * 256 + b * 256 * 256 + c * 256 + d; return ipNum; } private static boolean isInner(long userIp, long begin, long end) { return (userIp >= begin) && (userIp <= end); } /** * 将127.0.0.1 形式的IP地址转换成10进制整数 * * @param strIP * @return */ public static long ipToTenLong(String 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]; } public static String ipToTwoString(String 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)); Long ten = (ip[0] << 24) + (ip[1] << 16) + (ip[2] << 8) + ip[3]; return Long.toBinaryString(ten); } /** * 将10进制整数形式转换成127.0.0.1形式的IP地址 * * @param longIP * @return */ public static String tenLongToIP(long longIP) { StringBuffer sb = new StringBuffer(""); // 直接右移24位 sb.append(String.valueOf(longIP >>> 24)); sb.append("."); // 将高8位置0,然后右移16位 sb.append(String.valueOf((longIP & 0x00FFFFFF) >>> 16)); sb.append("."); sb.append(String.valueOf((longIP & 0x0000FFFF) >>> 8)); sb.append("."); sb.append(String.valueOf(longIP & 0x000000FF)); return sb.toString(); } }
Ip处理工具类
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转载自software-king.iteye.com/blog/2318800
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