lenboo
6 years ago
8 changed files with 120 additions and 17 deletions
@ -0,0 +1,70 @@
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/* |
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* Licensed to the Apache Software Foundation (ASF) under one or more |
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* contributor license agreements. See the NOTICE file distributed with |
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* this work for additional information regarding copyright ownership. |
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* The ASF licenses this file to You under the Apache License, Version 2.0 |
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* (the "License"); you may not use this file except in compliance with |
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* the License. You may obtain a copy of the License at |
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* |
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* http://www.apache.org/licenses/LICENSE-2.0
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* |
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* Unless required by applicable law or agreed to in writing, software |
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* distributed under the License is distributed on an "AS IS" BASIS, |
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
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* See the License for the specific language governing permissions and |
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* limitations under the License. |
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*/ |
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package cn.escheduler.common.utils; |
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import org.slf4j.Logger; |
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import org.slf4j.LoggerFactory; |
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/** |
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* http utils |
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*/ |
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public class IpUtils { |
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private static final Logger logger = LoggerFactory.getLogger(IpUtils.class); |
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public static final String DOT = "."; |
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/** |
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* ip str to long <p> |
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* |
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* @param ipStr ip string |
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*/ |
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public static Long ipToLong(String ipStr) { |
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String[] ipSet = ipStr.split("\\" + DOT); |
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return Long.parseLong(ipSet[0]) << 24 | Long.parseLong(ipSet[1]) << 16 | Long.parseLong(ipSet[2]) << 8 | Long.parseLong(ipSet[3]); |
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} |
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/** |
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* long to ip |
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* @param ipLong the long number converted from IP |
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* @return String |
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*/ |
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public static String longToIp(long ipLong) { |
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long[] ipNumbers = new long[4]; |
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long tmp = 0xFF; |
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ipNumbers[0] = ipLong >> 24 & tmp; |
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ipNumbers[1] = ipLong >> 16 & tmp; |
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ipNumbers[2] = ipLong >> 8 & tmp; |
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ipNumbers[3] = ipLong & tmp; |
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StringBuilder sb = new StringBuilder(16); |
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sb.append(ipNumbers[0]).append(DOT) |
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.append(ipNumbers[1]).append(DOT) |
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.append(ipNumbers[2]).append(DOT) |
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.append(ipNumbers[3]); |
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return sb.toString(); |
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} |
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public static void main(String[] args){ |
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long ipLong = ipToLong("11.3.4.5"); |
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logger.info(longToIp(ipLong)); |
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} |
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} |
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