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Java 检查参数是否为有效的IPv6地址（包括压缩地址）。

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检查参数是否为有效的IPv6地址（包括压缩地址）。

实例源码：

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/**

* Licensed to the Apache Software Foundation (ASF) under one

* or more contributor license agreements. See the NOTICE file

* distributed with this work for additional information

* regarding copyright ownership. The ASF licenses this file

* to you under the Apache License, Version 2.0 (the

* "License"); you may not use this file except in compliance

* with the License. You may obtain a copy of the License at

* http://www.apache.org/licenses/LICENSE-2.0

* Unless required by applicable law or agreed to in writing,

* software distributed under the License is distributed on an

* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY

* KIND, either express or implied. See the License for the

* specific language governing permissions and limitations

* under the License.

//package com.nowjava;

import java.util.regex.Pattern;/* from N o w J a v a . c o m - 时代Java*/

public class Main {

public static void main(String[] argv) throws Exception {

String input = "nowjava.com";

System.out.println(isIPv6Address(input));

}

private static final Pattern IPV6_STD_PATTERN = Pattern

.compile("^[0-9a-fA-F]{1,4}(:[0-9a-fA-F]{1,4}){7}$");

private static final Pattern IPV6_HEX_COMPRESSED_PATTERN = Pattern

.compile("^(([0-9A-Fa-f]{1,4}(:[0-9A-Fa-f]{1,4}){0,5})?)" // 0-6 hex fields

+ "::"

+ "(([0-9A-Fa-f]{1,4}(:[0-9A-Fa-f]{1,4}){0,5})?)$");

private static final char COLON_CHAR = ':';

private static final int MAX_COLON_COUNT = 7;

/**

* Checks whether the parameter is a valid IPv6 address (including compressed).

* @param input the address string to check for validity

* @return true if the input parameter is a valid standard or compressed IPv6 address

public static boolean isIPv6Address(final String input) {

return isIPv6StdAddress(input) || isIPv6HexCompressedAddress(input);/**来自 n  o  w  j  a  v  a . c o m**/

}

/**

* Checks whether the parameter is a valid standard (non-compressed) IPv6 address

* @param input the address string to check for validity

* @return true if the input parameter is a valid standard (non-compressed) IPv6 address

public static boolean isIPv6StdAddress(final String input) {

return IPV6_STD_PATTERN.matcher(input).matches();

}

/**

* Checks whether the parameter is a valid compressed IPv6 address

* @param input the address string to check for validity
/**代码未完, 请加载全部代码(NowJava.com).**/

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本文系作者在时代Java发表，未经许可，不得转载。如有侵权，请联系nowjava@qq.com删除。

编辑于 2020-03-26 09:23:272020-03-26 09:23:27

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