Java 检查参数是否为有效的IPv6地址（包括压缩地址）。
检查参数是否为有效的IPv6地址（包括压缩地址）。
实例源码：
源代码：
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/**3
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* Licensed to the Apache Software Foundation (ASF) under one5
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* or more contributor license agreements. See the NOTICE file7
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* distributed with this work for additional information9
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* regarding copyright ownership. The ASF licenses this file11
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* to you under the Apache License, Version 2.0 (the13
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* "License"); you may not use this file except in compliance15
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* with the License. You may obtain a copy of the License at17
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*19
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* http://www.apache.org/licenses/LICENSE-2.021
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*23
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* Unless required by applicable law or agreed to in writing,25
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* software distributed under the License is distributed on an27
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* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY29
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* KIND, either express or implied. See the License for the31
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* specific language governing permissions and limitations33
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* under the License.35
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*/37
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//package com.nowjava;39
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import java.util.regex.Pattern;/* from N o w J a v a . c o m - 时代Java*/41
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public class Main {44
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public static void main(String[] argv) throws Exception {46
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String input = "nowjava.com";48
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System.out.println(isIPv6Address(input));50
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}52
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private static final Pattern IPV6_STD_PATTERN = Pattern55
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.compile("^[0-9a-fA-F]{1,4}(:[0-9a-fA-F]{1,4}){7}$");57
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private static final Pattern IPV6_HEX_COMPRESSED_PATTERN = Pattern59
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.compile("^(([0-9A-Fa-f]{1,4}(:[0-9A-Fa-f]{1,4}){0,5})?)" // 0-6 hex fields61
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+ "::"63
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+ "(([0-9A-Fa-f]{1,4}(:[0-9A-Fa-f]{1,4}){0,5})?)$");65
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private static final char COLON_CHAR = ':';67
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private static final int MAX_COLON_COUNT = 7;69
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/**72
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* Checks whether the parameter is a valid IPv6 address (including compressed).74
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*76
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* @param input the address string to check for validity78
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* @return true if the input parameter is a valid standard or compressed IPv6 address80
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*/82
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public static boolean isIPv6Address(final String input) {84
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return isIPv6StdAddress(input) || isIPv6HexCompressedAddress(input);/**来自 n o w j a v a . c o m**/86
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}88
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/**91
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* Checks whether the parameter is a valid standard (non-compressed) IPv6 address93
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*95
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* @param input the address string to check for validity97
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* @return true if the input parameter is a valid standard (non-compressed) IPv6 address99
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*/101
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public static boolean isIPv6StdAddress(final String input) {103
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return IPV6_STD_PATTERN.matcher(input).matches();105
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}107
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/**110
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* Checks whether the parameter is a valid compressed IPv6 address112
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*114
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* @param input the address string to check for validity116
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