package com.cmc.util;import java.util.regex.Pattern;public class CharUtil { public static void main(String[] args) { String[] strArr = new String[] { "www.micmiu.com", "!@#$%^&*()_+{}[]|\"'?/:;<>,.", "!¥……()——:;“”‘’《》,。?、", "不要啊", "やめて", "韩佳人", "???" }; for (String str : strArr) { System.out.println("===========> 测试字符串:" + str); System.out.println("正则判断结果:" + isChineseByREG(str) + " -- " + isChineseByName(str)); System.out.println("Unicode判断结果 :" + isChinese(str)); System.out.println("详细判断列表:"); char[] ch = str.toCharArray(); for (int i = 0; i < ch.length; i++) { char c = ch[i]; System.out.println(c + " --> " + (isChinese(c) ? "是" : "否")); } } } //根据Unicode编码完美的判断中文汉字和符号 private static boolean isChinese(char c){ Character.UnicodeBlock ub=Character.UnicodeBlock.of(c); if(ub == Character.UnicodeBlock.CJK_UNIFIED_IDEOGRAPHS || ub == Character.UnicodeBlock.CJK_COMPATIBILITY_IDEOGRAPHS || ub == Character.UnicodeBlock.CJK_UNIFIED_IDEOGRAPHS_EXTENSION_A || ub == Character.UnicodeBlock.CJK_UNIFIED_IDEOGRAPHS_EXTENSION_B || ub == Character.UnicodeBlock.CJK_SYMBOLS_AND_PUNCTUATION || ub == Character.UnicodeBlock.HALFWIDTH_AND_FULLWIDTH_FORMS || ub == Character.UnicodeBlock.GENERAL_PUNCTUATION){ return true; } return false; } //完整的判断中文汉字和符号 public static boolean isChinese(String strName){ char[] ch=strName.toCharArray(); for (int i = 0; i < ch.length; i++) { char c=ch[i]; if(isChinese(c)){ return true; } } return false; } //只能判断部分CJK字符(CJK统一汉字) public static boolean isChineseByREG(String str){ if(str==null){ return false; } Pattern patter=Pattern.compile("[\\u4E00-\\u9FBF]+"); return patter.matcher(str.trim()).find(); } //只能判断部分CJK字符(CJK统一汉字) public static boolean isChineseByName(String str){ if(str==null){ return false; } // 大小写不同:\\p 表示包含,\\P 表示不包含 // \\p{Cn} 的意思为 Unicode 中未被定义字符的编码,\\P{Cn} 就表示 Unicode中已经被定义字符的编码 String reg = "\\p{InCJK Unified Ideographs}&&\\P{Cn}"; Pattern pattern = Pattern.compile(reg); return pattern.matcher(str.trim()).find(); }}