java判断中文汉字工具类

代码语言：javascript复制

package com.wlkj.util;

import java.util.regex.Matcher;
import java.util.regex.Pattern;

import net.sourceforge.pinyin4j.PinyinHelper;

public class ChineseUtil {

	/**
	 * 判断中文字符
	 * @param c
	 * @return
	 */
	public 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;
	}

	/**
	 * 包含中文字符
	 * @param str
	 * @return
	 */
	public static boolean containsChinese(String str){
	    char[] ch = str.toCharArray();
	    for(char c : ch){
	        if(isChinese(c)){
	            return true;
	        }
	    }
	    return false;
	}
	
	/**
	 * 是否中文（非标点符号）
	 * @param c
	 * @return
	 */
	public static boolean isChineseWord(char c) {
		char[] ch = {c};
		Pattern pattern = Pattern.compile("([u4E00-uFA29]|[uE7C7-uE7F3])");
		Matcher matcher = pattern.matcher(new String(ch));
		return matcher.find();
	}
	
	/**
	 * 包含汉字（非标点符号）
	 * @param name
	 * @return
	 */
	public static boolean containsChineseWords(String name) {
		Pattern pattern = Pattern.compile("^.*([u4E00-uFA29]|[uE7C7-uE7F3]) .*$");
		Matcher matcher = pattern.matcher(name);
		return matcher.find();
	}
	
	/**
	 * 转换成拼音字母缩写
	 * @param str
	 * @return abbr
	 */
	public static String toPinyinAbbr(String str){
		String abbr = "";
		for(char c : str.toCharArray()){
			if(ChineseUtil.isChineseWord(c)){
				abbr  = PinyinHelper.toHanyuPinyinStringArray(c)[0].substring(0, 1).toUpperCase();
			}
		}
		return abbr;
	}
	
	
	public static void main(String[] args) {
		System.out.println(isChinese('め'));// false
		System.out.println(isChineseWord('我'));// true
		System.out.println(containsChinese("a我b"));// true
		System.out.println(containsChineseWords("a，b")); // false
	}
}

java 工具类

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